# Patent

## Title
System and method for timely whereabouts determination by a mobile data processing system

## Abstract

Provided is a distributed system and method for enabling new and useful location dependent features and functionality to mobile data processing systems. Mobile data processing systems interact with each other as peers in communications and interoperability. A mobile data processing system may dynamically take on roles, depending on the environment and capabilities available at a particular time. Reference whereabouts data is appropriately shared between mobile data processing systems to carry out automatic location techniques ensuring mobile data processing systems are kept up to date with their own whereabouts and whereabouts of others, regardless of the freely moving travels of any of the mobile data processing systems involved, and the location technologies that may or may not be available when needed. A confidence is associated to whereabouts data shared for facilitating selection of the best candidate data used in determining new whereabouts information.

## Background
CROSS-REFERENCES TO RELATED APPLICATIONS
This application is a continuation of application Ser. No. 12/077,041 filed Mar. 14, 2008 and entitled “System and Method for Location Based Exchanges of Data Facilitating Distributed Locational Applications”. This application contains an identical specification to Ser. No. 12/077,041 except for the title, abstract, claims, and minor modifications resulting from a Preliminary Amendment filed Nov. 17, 2008 and a Preliminary Amendment B filed Feb. 10, 2009.


FIELD OF THE INVENTION
The present disclosure relates generally to location based services for mobile data processing systems, and more particularly to location based exchanges of data between distributed mobile data processing systems for locational applications. A common connected service is not required for location based functionality and features. Location based exchanges of data between distributed mobile data processing systems enable location based features and functionality in a peer to peer manner.
BACKGROUND OF THE INVENTION
The internet has exploded with new service offerings. Websites yahoo.com, google.com, ebay.com, amazon.com, and iTunes.com have demonstrated well the ability to provide valuable services to a large dispersed geographic audience through the internet (ebay, yahoo, google, amazon and iTunes (Apple) are trademarks of the respective companies). Thousands of different types of web services are available for many kinds of functionality. Advantages of having a service as the intermediary point between clients, users, and systems, and their associated services, includes centralized processing, centralized maintaining of data, for example to have an all knowing database for scope of services provided, having a supervisory point of control, providing an administrator with access to data maintained by users of the web service, and other advantages associated with centralized control. The advantages are analogous to those provided by the traditional mainframe computer to its clients wherein the mainframe owns all resources, data, processing, and centralized control for all users and systems (clients) that access its services. However, as computers declined in price and adequate processing power was brought to more distributed systems, such as Open Systems (i.e. Windows, UNIX, Linux, and Mac environments), the mainframe was no longer necessary for many of the daily computing tasks. In fact, adequate processing power is incorporated in highly mobile devices, various handheld mobile data processing systems, and other mobile data processing systems. Technology continues to drive improved processing power and data storage capabilities in less physical space of a device. Just as Open Systems took much of the load of computing off of mainframe computers, so to can mobile data processing systems offload tasks usually performed by connected web services. As mobile data processing systems are more capable, there is no need for a service to middleman interactions possible between them.
While a centralized service has its advantages, there are also disadvantages. A service becomes a clearinghouse for all web service transactions. Regardless of the number of threads of processing spread out over hardware and processor platforms, the web service itself can become a bottleneck causing poor performance for timely response, and can cause a large amount of data that must be kept for all connected users and/or systems. Even large web services mentioned above suffer from performance and maintenance overhead. A web service response will likely never be fast enough. Additionally, archives must be kept to ensure recovery in the event of a disaster because the service houses all data for its operations. Archives also require storage, processing power, planning, and maintenance. A significantly large and costly data center is necessary to accommodate millions of users and/or systems to connect to the service. There is a tremendous amount of overhead in providing such a service. Data center processing power, data capacity, data transmission bandwidth and speed, infrastructure entities, and various performance considerations are quite costly. Costs include real estate required, utility bills for electricity and cooling, system maintenance, personnel to operate a successful business with service(s), etc. A method is needed to prevent large data center costs while eliminating performance issues for features sought. It is inevitable that as users are hungry for more features and functionality on their mobile data processing systems, processing will be moved closer to the device for optimal performance and infrastructure cost savings.
Service delivered location dependent content was disclosed in U.S. Pat. Nos. 6,456,234; 6,731,238; 7,187,997 (Johnson). Anonymous location based services was disclosed in U.S. PTO Publication 2006/0022048 (Johnson). The Johnson patents and published application operate as most web services do in that the clients connecting to the service benefit from the service by having some connectivity to the service. U.S. Publication 2006/0022048 (Johnson) could cause large numbers of users to inundate the service with device heartbeats and data to maintain, depending on the configurations made. While this may be of little concern to a company that has successfully deployed substantially large web service resources, it may be of great concern to other more frugal companies. A method is needed for enabling location dependent features and functionality without the burden of requiring a service.
Users are skeptical about their privacy as internet services proliferate. A service by its very nature typically holds information for a user maintained in a centralized service database. The user's preferences, credential information, permissions, customizations, billing information, surfing habits, and other conceivable user configurations and activity monitoring, can be housed by the service at the service. Company insiders, as well as outside attackers, may get access. Most people are concerned with preventing personal information of any type being kept in a centralized database which may potentially become compromised from a security standpoint. Location based services are of even more concern, in particular when the locations of the user are to be known to a centralized service. A method and system is needed for making users comfortable with knowing that their personal information is at less risk of being compromised.
A reasonable requirement is to push intelligence out to the mobile data processing systems themselves, for example, in knowing their own locations and perhaps the locations of other nearby mobile data processing systems. Mobile data processing systems can intelligently handle many of their own application requirements without depending on some remote service. Just as two people in a business organization should not need a manager to speak to each other, no two mobile data processing systems should require a service middleman for useful location dependent features and functionality. The knowing of its own location should not be the end of social interaction implementation local to the mobile data processing systems, but rather the starting place for a large number of useful distributed local applications that do not require a service.
Different users use different types of Mobile data processing Systems (MSs) which are also called mobile devices: laptops, tablet computers, Personal Computers (PCs), Personal Digital Assistants (PDAs), cell phones, automobile dashboard mounted data processing systems, shopping cart mounted data processing systems, mobile vehicle or apparatus mounted data processing systems, Personal Navigational Devices (PNDs), iPhones (iPhone is a trademark of Apple, Inc.), various handheld mobile data processing systems, etc. MSs move freely in the environment, and are unpredictably moveable (i.e. can be moved anywhere, anytime). Many of these Mobile data processing Systems (MSs) do not have capability of being automatically located, or are not using a service for being automatically located. Conventional methods use directly relative stationary references such as satellites, antennas, etc. to locate MSs. Stationary references are expensive to deploy, and risk obsolescence as new technologies are introduced to the marketplace. Stationary references have finite scope of support for locating MSs.
While the United States E911 mandate for cellular devices documents requirements for automatic location of a Mobile data processing System (MS) such as a cell phone, the mandate does not necessarily promote real time location and tracking of the MSs, nor does it define architecture for exploiting Location Based Services (LBS). We are in an era where Location Based Services (LBS), and location dependent features and functionality, are among the most promising technologies in the world. Automatic locating of every Mobile data processing System (MS) is an evolutionary trend. A method is needed to shorten the length of time for automatically locating every MS. Such a goal can be costly using prior art technologies such as GPS (Global Positioning System), radio wave triangulation, coming within range to a known located sensor, or the like. Complex system infrastructure, or added hardware costs to the MSs themselves, make such ventures costly and time constrained by schedules and costs involved in engineering, construction, and deployment.
A method is needed for enabling users to get location dependent features and functionality through having their mobile locations known, regardless of whether or not their MS is equipped for being located. Also, new and modern location dependent features and functionality can be provided to a MS unencumbered by a connected service.
BRIEF SUMMARY OF THE INVENTION
LBS (Location Based Services) is a term which has gained in popularity over the years as MSs incorporate various location capability. The word “Services” in that terminology plays a major role in location based features and functionality involving interaction between two or more users. This disclosure introduces a new terminology, system, and method referred to as Location Based eXchanges (LBX). LBX is an acronym used interchangeably/contextually throughout this disclosure for the singular term “Location Based Exchange” and for the plural term “Location Based Exchanges”, much the same way LBS is used interchangeably/contextually for the single term “Location Based Service” and for the plural term “Location Based Services”. LBX describes leveraging the distributed nature of connectivity between MSs in lieu of leveraging a common centralized service nature of connectivity between MSs. The line can become blurred between LBS and LBX since the same or similar features and functionality are provided, and in some cases strengths from both may be used. The underlying architectural shift differentiates LBX from LBS for depending less on centralized services, and more on distributed interactions between MSs. LBX provide server-free and server-less location dependent features and functionality.
Disclosed are many different aspects to LBX, starting with the foundation requirement for each participating MS to know, at some point in time, their own whereabouts. LBX is enabled when an MS knows its own whereabouts. It is therefore a goal to first make as many MSs know their own whereabouts as possible. When two or more MSs know their own whereabouts, LBX enables distributed locational applications whereby a server is not required to middleman social interactions between the MSs. The MSs interact as peers. LBX disclosed include purely peer to peer interactions, peer to peer interactions for routing services, peer to peer interactions for delivering distributed services, and peer to peer interactions for location dependent features and functionality. One embodiment of an LBX enabled MS is referred to as an IbxPhoneTM.
It is an advantage herein to have no centralized service governing location based features and functionality among MSs. Avoiding a centralized service prevents performance issues, infrastructure costs, and solves many of the issues described above. No centralized service also prevents a user's information from being kept in one accessible place. LBS contain centralized data that is personal in nature to its users. This is a security concern. Having information for all users in one place increases the likelihood that a disaster to the data will affect more than a single user. LBX spreads data out across participating systems so that a disaster affecting one user does not affect any other user.
It is an advantage herein for enabling useful distributed applications without the necessity of having a service, and without the necessity of users and/or systems registering with a service. MSs interact as peers in preferred embodiments, rather than as clients to a common service (e.g. internet connected web service).
It is an advantage herein for locating as many MSs as possible in a wireless network, and without additional deployment costs on the MSs or the network. Conventional locating capability includes GPS (Global Positioning System) using stationary orbiting satellites, improved forms of GPS, for example AGPS (Adjusted GPS) and DGPS (Differential GPS) using stationary located ground stations, wireless communications to stationary located cell tower base stations, TDOA (Time Difference of Arrival) or AOA (Angle of Arrival) triangulation using stationary located antennas, presence detection in vicinity of a stationary located antenna, presence detection at a wired connectivity stationary network location, or other conventional locating systems and methods. Mobile data processing systems, referred to as Indirectly Located Mobile data processing systems (ILMs), are automatically located using automatically detected locations of Directly Located Mobile data processing systems (DLMs) and/or automatically detected locations of other ILMs. ILMs are provided with the ability to participate in the same LBS, or LBX, as a DLM (Directly Located Mobile data processing system). DLMs are located using conventional locating capability mentioned above. DLMs provide reference locations for automatically locating ILMs, regardless of where any one is currently located. DLMs and ILMs can be highly mobile, for example when in use by a user. There are a variety of novel methods for automatically locating ILMs, for example triangulating an ILM (Indirectly Located Mobile data processing system) location using a plurality of DLMs, detecting the ILM being within the vicinity of at least one DLM, triangulating an ILM location using a plurality of other ILMs, detecting the ILM being within the vicinity of at least one other ILM, triangulating an ILM location using a mixed set of DLM(s) and ILM(s), determining the ILM location from heterogeneously located DLMs and/or ILMs, and other novel methods.
MSs are automatically located without using direct conventional means for being automatically located. The conventional locating capability (i.e. conventional locating methods) described above is also referred to as direct methods. Conventional methods are direct methods, but not all direct methods are conventional. There are new direct techniques disclosed below. Provided herein is an architecture, as well as systems and methods, for immediately bringing automatic location detection to every MS in the world, regardless of whether that MS is equipped for being directly located. MSs without capability of being directly located are located by leveraging the automatically detected locations of MSs that are directly located. This is referred to as being indirectly located. An MS which is directly located is hereinafter referred to as a Directly Located Mobile data processing system (DLM). For a plural acronym, MSs which are directly located are hereinafter referred to as Directly Located Mobile data processing systems (DLMs). MSs without capability of being directly located are located using the automatically detected locations of MSs that have already been located. An MS which is indirectly located is hereinafter referred to as an Indirectly Located Mobile data processing system (ILM). For a plural acronym, MSs which are indirectly located are hereinafter referred to as Indirectly Located Mobile data processing systems (ILMs). A DLM can be located in the following ways:

    
    
        A) New triangulated wave forms;
        B) Missing Part Triangulation (MPT) as disclosed below;
        C) Heterogeneous direct locating methods;
        D) Assisted Direct Location Technology (ADLT) using a combination of direct and indirect methods;
        E) Manually specified; and/or
        F) Any combinations of A) through E);

DLMs provide reference locations for automatically locating ILMs, regardless of where the DLMs are currently located. It is preferable to assure an accurate location of every DLM, or at least provide a confidence value of the accuracy. A confidence value of the accuracy is used by relative ILMs to determine which are the best set (e.g. which are of highest priority for use to determine ILM whereabouts) of relative DLMs (and/or ILMs) to use for automatically determining the location of the ILM.

    
    


In one example, the mobile locations of several MSs are automatically detected using their local GPS chips. Each is referred to as a DLM. The mobile location of a non-locatable MS is triangulated using radio waves between it and three (3) of the GPS equipped DLMs. The MS becomes an ILM upon having its location determined relative the DLMs. ILMs are automatically located using DLMs, or other already located ILMs. An ILM can be located in the following ways:

    
    
        G) Triangulating an ILM location using a plurality of DLMs with wave forms of any variety (e.g. AOA, TDOA, MPT (a heterogeneous location method));
        H) Detecting the ILM being within the reasonably close vicinity of at least one DLM;
        I) Triangulating an ILM location using a plurality of other ILMs with wave forms of any variety;
        J) Detecting the ILM being within the reasonable close vicinity of at least one other ILM;
        K) Triangulating an ILM location using a mixed set of DLM(s) and ILM(s) with wave forms of any variety (referred to as ADLT);
        L) Determining the ILM location from heterogeneously located DLMs and/or ILMs (i.e. heterogeneously located, as used here, implies having been located relative different location methodologies);
        M) A) through F) Above; and/or
        N) Any combinations of A) through M).
    
    


Locating functionality may leverage GPS functionality, including but not limited to GPS, AGPS (Adjusted GPS), DGPS, (Differential GPS), or any improved GPS embodiment to achieve higher accuracy using known locations, for example ground based reference locations. The NexTel GPS enabled iSeries cell phones provide excellent examples for use as DLMs (Nextel is a trademark of Sprint/Nextel). Locating functionality may incorporate triangulated locating of the MS, for example using a class of Radio Frequency (RF) wave spectrum (cellular, WiFi, bluetooth, etc), and may use measurements from different wave spectrums for a single location determination (depends on communications interface(s) 70 available). A MS may have its whereabouts determined using a plurality of wave spectrum classes available to it (cellular, WiFi, bluetooth, etc). Locating functionality may include in-range proximity detection for detecting the presence of the MS. Wave forms for triangulated locating also include microwaves, infrared wave spectrum relative infrared sensors, visible light wave spectrum relative light visible light wave sensors, ultraviolet wave spectrum relative ultraviolet wave sensors, X-ray wave spectrum relative X-ray wave sensors, gamma ray wave spectrum relative gamma ray wave sensors, and longwave spectrum (below AM) relative longwave sensors. While there are certainly more common methods for automatically locating a MS (e.g. radio wave triangulation, GPS, in range proximity detection), those skilled in the art recognize there are methods for different wave spectrums being detected, measured, and used for carrying information between data processing systems.
Kubler et al (U.S. PTO publications 2004/0264442, 2004/0246940, 2004/0228330, 2004/0151151) disclosed methods for detecting presence of mobile entities as they come within range of a sensor. In Kubler et al, accuracy of the location of the detected MS is not well known, so an estimated area of the whereabouts of the MS is enough to accomplish intended functionality, for example in warehouse installations. A confidence value of this disclosure associated with Kubler et al tends to be low (i.e. not confident), with lower values for long range sensors and higher values for short range sensors.
GPS and the abundance of methods for improving GPS accuracy has led to many successful systems for located MSs with high accuracy. Triangulation provides high accuracies for locating MSs. A confidence value of this disclosure associated with GPS and triangulating location methods tends to be high (i.e. confident). It is preferred that DLMs use the highest possible accuracy method available so that relative ILMs are well located. Not all DLMs need to use the same location methods. An ILM can be located relative DLMs, or other ILMs, that each has different locating methodologies utilized.
Another advantage herein is to generically locate MSs using varieties and combinations of different technologies. MSs can be automatically located using direct conventional methods for accuracy to base on the locating of other MSs. MSs can be automatically located using indirect methods. Further, it is an advantage to indirectly locate a MS relative heterogeneously located MSs. For example, one DLM may be automatically located using GPS. Another DLM may be automatically located using cell tower triangulation. A third DLM may be automatically located using within range proximity. An ILM can be automatically located at a single location, or different locations over time, relative these three differently located DLMs. The automatically detected location of the ILM may be determined using a form of triangulation relative the three DLMs just discussed, even though each DLM had a different direct location method used. In a preferred embodiment, industry standard IEEE 802.11 Wi-Fi is used to locate (triangulate) an ILM relative a plurality of DLMs (e.g. TDOA in one embodiment). This standard is prolific among more compute trended MSs. Any of the family of 802.11 wave forms such as 802.11a, 802.11b, 802.11g, or any other similar class of wave spectrum can be used, and the same spectrum need not be used between a single ILM and multiple DLMs. 802.x used herein generally refers to the many 802.whatever variations.
Another advantage herein is to make use of existing marketplace communications hardware, communications software interfaces, and communications methods and location methods where possible to accomplish locating an MS relative one or more other MSs. While 802.x is widespread for Wi-Fi communications, other RF wave forms can be used (e.g. cell phone to cell tower communications). In fact, any wave spectrum for carrying data applies herein.
Still another advantage is for support of heterogeneous locatable devices. Different people like different types of devices as described above. Complete automation of locating functionality can be provided to a device through local automatic location detection means, or by automatic location detection means remote to the device. Also, an ILM can be located relative a laptop, a cell phone, and a PDA (i.e. different device types).
Yet another advantage is to prevent the unnecessary storing of large amounts of positioning data for a network of MSs. Keeping positioning data for knowing the whereabouts of all devices can be expensive in terms of storage, infrastructure, performance, backup, and disaster recovery. A preferred embodiment simply uses a distributed approach to determining locations of MSs without the overhead of an all-knowing database maintained somewhere. Positions of MSs can be determined “on the fly” without storing information in a master database. However, there are embodiments for storing a master database, or a subset thereof, to configurable storage destinations, when it makes sense. A subset can be stored at a MS.
Another advantage includes making use of existing location equipped MSs to expand the network of locatable devices by locating non-equipped MSs relative the location of equipped MSs. MSs themselves help increase dimensions of the locatable network of MSs. The locatable network of MSs is referred to as an LN-Expanse (i.e. Location-Network Expanse). An LN-Expanse dynamically grows and shrinks based on where MSs are located at a particular time. For example, as users travel with their personal MSs, the personal MSs themselves define the LN-Expanse since the personal MSs are used to locate other MSs. An ILM simply needs location awareness relative located MSs (DLMs and/or ILMs).
Yet another advantage is a MS interchangeably taking on the role of a DLM or ILM as it travels. MSs are chameleons in this regard, in response to location technologies that happen to be available. A MS may be equipped for DLM capability, but may be in a location at some time where the capability is inoperable. In these situations the DLM takes on the role of an ILM. When the MS again enters a location where it can be a DLM, it automatically takes on the role of the DLM. This is very important, in particular for emergency situations. A hiker has a serious accident in the mountains which prevents GPS equipped DLM capability from working. Fortunately, the MS automatically takes on the role of an ILM and is located within the vicinity of neighboring (nearby) MSs. This allows the hiker to communicate his location, operate useful locational application functions and features at his MS, and enable emergency help that can find him.
It is a further advantage that MS locations be triangulated using any wave forms (e.g. RF, microwaves, infrared, visible light, ultraviolet, X-ray, gamma ray). X-ray and gamma ray applications are special in that such waves are harmful to humans in short periods of times, and such applications should be well warranted to use such wave forms. In some medical embodiments, micro-machines may be deployed within a human body. Such micro-machines can be equipped as MSs. Wave spectrums available at the time of deployment can be used by the MSs for determining exact positions when traveling through a body.
It is another advantage to use TDOA (Time Difference Of Arrival), AOA (Angle Of Arrival), and Missing Part Triangulation (MPT) when locating a MS. TDOA uses time information to determine locations, for example for distances of sides of a triangle. AOA uses angles of arrival to antennas to geometrically assess where a MS is located by intersecting lines drawn from the antennas with detected angles. MPT is disclosed herein as using combinations of AOA and TDOA to determine a location. Exclusively using all AOA or exclusively using all TDOA is not necessary. MPT can be a direct method for locating MSs.
Yet another advantage is to locate MSs using Assisted Direct Location Technology (ADLT). ADLT is disclosed herein as using direct (conventional) location capability together with indirect location capability to confidently determine the location of a MS.
Still another advantage is to permit manual specification for identifying the location of a MS (a DLM). The manual location can then in turn be used to facilitate locating other MSs. A user interface may be used for specification of a DLM location. The user interface can be local, or remote, to the DLM. Various manual specification methods are disclosed. Manual specification is preferably used with less mobile MSs, or existing MSs such as those that use dodgeball.com (trademark of Google). The confidence value depends on how the location is specified, whether or not it was validated, and how it changes when the MS moves after being manually set. Manual specification should have limited scope in an LN-expanse unless inaccuracies can be avoided.
Another advantage herein is locating a MS using any of the methodologies above, any combinations of the methodologies above, and any combinations of direct and/or indirect location methods described.
Another advantage is providing synergy between different locating technologies for smooth operations as an MS travels. There are large numbers of methods and combinations of those methods for keeping an MS informed of its whereabouts. Keeping an MS informed of its whereabouts in a timely manner is critical in ensuring LBX operate optimally, and for ensuring nearby MSs without certain locating technologies can in turn be located.
It is another advantage for locating an MS with multiple location technologies during its travels, and in using the best of breed data from multiple location technologies to infer a MS location confidently. Confidence values are associated with reference location information to ensure an MS using the location information can assess accuracy. A DLM is usually an “affirmifier”. An affirmifier is an MS with its whereabouts information having high confidence of accuracy and can serve as a reference for other MSs. An ILM can also be an affirmifier provided there is high confidence that the ILM location is known. An MS (e.g. ILM) may be a “pacifier”. A pacifier is an MS having location information for its whereabouts with a low confidence for accuracy. While it can serve as a reference to other ILMs, it can only do so by contributing a low confidence of accuracy.
It is an advantage to synergistically make use of the large number of locating technologies available to prevent one particular type of technology to dominate others while using the best features of each to assess accurate mobile locations of MSs.
A further advantage is to leverage a data processing system with capability of being located for co-locating another data processing system without any capability of being located. For example, a driver owns an older model automobile, has a useful second data processing system in the automobile without means for being automatically located. The driver also own a cell phone, called a first data processing system, which does have means for being automatically located. The location of the first data processing system can be shared with the second data processing system for locating the second data processing system. Further still, the second data processing system without means for being automatically located is located relative a first set (plurality) of data processing systems which are not at the same location as the second data processing system. So, data processing systems are automatically located relative at least one other data processing which can be automatically located.
Another advantage is a LBX enabled MS includes a service informant component for keeping a supervisory service informed. This prevents an MS from operating in total isolation, and prevents an MS from operating in isolation with those MSs that are within its vicinity (e.g. within maximum range 1306) at some point in time, but to also participate when the same MSs are great distances from each other. There are LBX which would fit well into an LBS model, but a preferred embodiment chooses to use the LBX model. For example, multiple MS users are seeking to carpool to and from a common destination. The service informant component can perform timely updates to a supervisory service for route comparisons between MSs, even though periods of information are maintained only at the MSs. For example, users find out that they go to the same church with similar schedules, or coworkers find out they live nearby and have identical work schedules. The service informant component can keep a service informed of MS whereabouts to facilitate novel LBX applications.
It is a further advantage in leveraging the vast amount of MS WiFi deployment underway in the United States. More widespread WiFi availability enhances the ability for well performing peer to peer types of features and functionality disclosed.
It is a further advantage to prevent unnecessary established connections from interfering with successfully triangulating a MS position. As the MS roams and encounters various wave spectrum signals, that is all that is required for determining the MS location. Broadcast signaling contains the necessary location information for automatically locating the MS.
Yet another advantage is to leverage Network Time Protocol (NTP) for eliminating bidirectional communications in determining Time of Arrival (TOA) and TDOA (Time Difference Of Arrival) measurements (TDOA as used in the disclosure generally refers to both TOA and TDOA). NTP enables a single unidirectional transmission of data to carry all that is necessary in determining TDOA, provided the sending data processing system and the receiving data processing system are NTP synchronized to an adequate granulation of time.
A further advantage herein is to leverage existing “usual communications” data transmissions for carrying new data that is ignored by existing MS processing, but observed by new MS processing, for carrying out processing maximizing location functions and features across a large geography. Alternatively, new data can be transmitted between systems for the same functionality.
Further features and advantages of the disclosure, as well as the structure and operation of various embodiments of the disclosure, are described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers generally indicate identical, functionally similar, and/or structurally similar elements. The drawing in which an element first appears is indicated by the leftmost digit(s) in the corresponding reference number, except that reference numbers 1 through 99 may be found on the first 4 drawings of FIGS. 1A through 1D. None of the drawings, discussions, or materials herein is to be interpreted as limiting to a particular embodiment. The broadest interpretation is intended. Other embodiments accomplishing same functionality are within the spirit and scope of this disclosure. It should be understood that information is presented by example and many embodiments exist without departing from the spirit and scope of this disclosure.



BRIEF DESCRIPTION OF THE DRAWINGS
There is no guarantee that there are descriptions in this specification for explaining every novel feature found in the drawings. The present disclosure will be described with reference to the accompanying drawings, wherein:
FIG. 1A depicts a preferred embodiment high level example componentization of a MS in accordance with the present disclosure;
FIG. 1B depicts a Location Based eXchanges (LBX) architectural illustration for discussing the present disclosure;
FIG. 1C depicts a Location Based Services (LBS) architectural illustration for discussing prior art of the present disclosure;
FIG. 1D depicts a block diagram of a data processing system useful for implementing a MS, ILM, DLM, centralized server, or any other data processing system disclosed herein;
FIG. 1E depicts a network illustration for discussing various deployments of whereabouts processing aspects of the present disclosure;
FIG. 2A depicts an illustration for describing automatic location of a MS through the MS coming into range of a stationary cellular tower;
FIG. 2B depicts an illustration for describing automatic location of a MS through the MS coming into range of some stationary antenna;
FIG. 2C depicts an illustration for discussing an example of automatically locating a MS through the MS coming into range of some stationary antenna;
FIG. 2D depicts a flowchart for describing a preferred embodiment of a service whereabouts update event of an antenna in-range detected MS when MS location awareness is monitored by a stationary antenna or cell tower;
FIG. 2E depicts a flowchart for describing a preferred embodiment of an MS whereabouts update event of an antenna in-range detected MS when MS location awareness is monitored by the MS;
FIG. 2F depicts a flowchart for describing a preferred embodiment of a procedure for inserting a Whereabouts Data Record (WDR) to an MS whereabouts data queue;
FIG. 3A depicts a locating by triangulation illustration for discussing automatic location of a MS;
FIG. 3B depicts a flowchart for describing a preferred embodiment of the whereabouts update event of a triangulated MS when MS location awareness is monitored by some remote service;
FIG. 3C depicts a flowchart for describing a preferred embodiment of the whereabouts update event of a triangulated MS when MS location awareness is monitored by the MS;
FIG. 4A depicts a locating by GPS triangulation illustration for discussing automatic location of a MS;
FIG. 4B depicts a flowchart for describing a preferred embodiment of the whereabouts update event of a GPS triangulated MS;
FIG. 5A depicts a locating by stationary antenna triangulation illustration for discussing automatic location of a MS;
FIG. 5B depicts a flowchart for describing a preferred embodiment of the whereabouts update event of a stationary antenna triangulated MS;
FIG. 6A depicts a flowchart for describing a preferred embodiment of a service whereabouts update event of a physically or logically connected MS;
FIG. 6B depicts a flowchart for describing a preferred embodiment of a MS whereabouts update event of a physically or logically connected MS;
FIGS. 7A, 7B and 7C depict a locating by image sensory illustration for discussing automatic location of a MS;
FIG. 7D depicts a flowchart for describing a preferred embodiment of graphically locating a MS, for example as illustrated by FIGS. 7A through 7C;
FIG. 8A heterogeneously depicts a locating by arbitrary wave spectrum illustration for discussing automatic location of a MS;
FIG. 8B depicts a flowchart for describing a preferred embodiment of locating a MS through physically contacting the MS;
FIG. 8C depicts a flowchart for describing a preferred embodiment of locating a MS through a manually entered whereabouts of the MS;
FIG. 9A depicts a table for illustrating heterogeneously locating a MS;
FIG. 9B depicts a flowchart for describing a preferred embodiment of heterogeneously locating a MS;
FIGS. 10A and 10B depict an illustration of a Locatable Network expanse (LN-Expanse) for describing locating of an ILM with all DLMs;
FIG. 10C depicts an illustration of a Locatable Network expanse (LN-Expanse) for describing locating of an ILM with an ILM and DLM;
FIGS. 10D, 10E, and 10F depict an illustration of a Locatable Network expanse (LN-Expanse) for describing locating of an ILM with all ILMs;
FIGS. 10G and 10H depict an illustration for describing the infinite reach of a Locatable Network expanse (LN-Expanse) according to MSs;
FIG. 10I depicts an illustration of a Locatable Network expanse (LN-Expanse) for describing a supervisory service;
FIG. 11A depicts a preferred embodiment of a Whereabouts Data Record (WDR) 1100 for discussing operations of the present disclosure;
FIGS. 11B, 11C and 11D depict an illustration for describing various embodiments for determining the whereabouts of an MS;
FIG. 11E depicts an illustration for describing various embodiments for automatically determining the whereabouts of an MS;
FIG. 12 depicts a flowchart for describing an embodiment of MS initialization processing;
FIGS. 13A through 13C depict an illustration of data processing system wireless data transmissions over some wave spectrum;
FIG. 14A depicts a flowchart for describing a preferred embodiment of MS LBX configuration processing;
FIG. 14B depicts a continued portion flowchart of FIG. 14A for describing a preferred embodiment of MS LBX configuration processing;
FIG. 15A depicts a flowchart for describing a preferred embodiment of DLM role configuration processing;
FIG. 15B depicts a flowchart for describing a preferred embodiment of ILM role configuration processing;
FIG. 15C depicts a flowchart for describing a preferred embodiment of a procedure for Manage List processing;
FIG. 16 depicts a flowchart for describing a preferred embodiment of NTP use configuration processing;
FIG. 17 depicts a flowchart for describing a preferred embodiment of WDR maintenance processing;
FIG. 18 depicts a flowchart for describing a preferred embodiment of a procedure for variable configuration processing;
FIG. 19 depicts an illustration for describing a preferred embodiment multithreaded architecture of peer interaction processing of a MS in accordance with the present disclosure;
FIG. 20 depicts a flowchart for describing a preferred embodiment of MS whereabouts broadcast processing;
FIG. 21 depicts a flowchart for describing a preferred embodiment of MS whereabouts collection processing;
FIG. 22 depicts a flowchart for describing a preferred embodiment of MS whereabouts supervisor processing;
FIG. 23 depicts a flowchart for describing a preferred embodiment of MS timing determination processing;
FIG. 24A depicts an illustration for describing a preferred embodiment of a thread request queue record;
FIG. 24B depicts an illustration for describing a preferred embodiment of a correlation response queue record;
FIG. 24C depicts an illustration for describing a preferred embodiment of a WDR request record;
FIG. 25 depicts a flowchart for describing a preferred embodiment of MS WDR request processing;
FIG. 26A depicts a flowchart for describing a preferred embodiment of MS whereabouts determination processing;
FIG. 26B depicts a flowchart for describing a preferred embodiment of processing for determining a highest possible confidence whereabouts;
FIG. 27 depicts a flowchart for describing a preferred embodiment of queue prune processing;
FIG. 28 depicts a flowchart for describing a preferred embodiment of MS termination processing;
FIG. 29A depicts a flowchart for describing a preferred embodiment of a process for starting a specified number of threads in a specified thread pool; and
FIG. 29B depicts a flowchart for describing a preferred embodiment of a procedure for terminating the process started by FIG. 29A.



DETAILED DESCRIPTION OF THE INVENTION
With reference now to detail of the drawings, the present disclosure is described. Obvious error handling is omitted from the flowcharts in order to focus on the key aspects of the present disclosure. Obvious error handling includes database I/O errors, field validation errors, errors as the result of database table/data constraints or unique keys, data access errors, communications interface errors or packet collision, hardware failures, checksum validations, bit error detections/corrections, and any other error handling as well known to those skilled in the relevant art in context of this disclosure. A semicolon may be used in flowchart blocks to represent, and separate, multiple blocks of processing within a single physical block. This allows simpler flowcharts with less blocks in the drawings by placing multiple blocks of processing description in a single physical block of the flowchart. Flowchart processing is intended to be interpreted in the broadest sense by example, and not for limiting methods of accomplishing the same functionality. Preferably, field validation in the flowcharts checks for SQL injection attacks, communications protocol sniff and hack attacks, preventing of spoofing MS addresses, syntactical appropriateness, and semantics errors where appropriate. Disclosed user interface processing and/or screenshots are also preferred embodiment examples that can be implemented in other ways without departing from the spirit and scope of this disclosure. Alternative user interfaces (since this disclosure is not to be limiting) will use similar mechanisms, but may use different mechanisms without departing from the spirit and scope of this disclosure.
Locational terms such as whereabouts, location, position, area, destination, perimeter, radius, geofence, situational location, or any other related two or three dimensional locational term used herein to described position(s) and/or locations and/or whereabouts is to be interpreted in the broadest sense. Location field 1100c may include an area (e.g. on earth), a point (e.g. on earth), or a three dimensional bounds in space. In another example, a radius may define a sphere in space, rather than a circle in a plane. In some embodiments, a planet field forms part of the location (e.g. Earth, Mars, etc as part of field 1100c) for which other location information (e.g. latitude and longitude on Mars also part of field 1100c) is relative. In some embodiments, elevations (or altitudes) from known locatable point(s), distances from origin(s) in the universe, etc. can denote where exactly is a point of three dimensional space, or three dimensional sphere, area, or solid, is located. That same point can provide a mathematical reference to other points of the solid area/region in space. Descriptions for angles, pitches, rotations, etc from some reference point(s) may be further provided. Three dimensional areas/regions include a conical shape, cubical shape, spherical shape, pyramidal shape, irregular shapes, or any other shape either manipulated with a three dimensional graphic interface, or with mathematical model descriptions. Areas/regions in space can be occupied by a MS, passed through (e.g. by a traveler) by a MS, or referenced through configuration by a MS. In a three dimensional embodiment, nearby/nearness is determined in terms of three dimensional information, for example, a spherical radius around one MS intersecting a spherical radius around another MS. In a two dimensional embodiment, nearby/nearness is determined in terms of two dimensional information, for example, a circular radius around one MS intersecting a circular radius around another MS. Points can be specified as a point in a x-y-z plane, a point in polar coordinates, or the like, perhaps the center of a planet (e.g. Earth) or the Sun, some origin in the Universe, or any other origin for distinctly locating three dimensional location(s), positions, or whereabouts in space. Elevation (e.g. for earth, or some other planet, etc) may be useful to the three dimensional point of origin, and/or for the three dimensional region in space. A region in space may also be specified with connecting x-y-z coordinates together to bound the three dimensional region in space. There are many methods for representing a location (field 1100c) without departing from the spirit and scope of this disclosure. MSs, for example as carried by users, can travel by airplane through three dimensional areas/regions in space, or travel under the sea through three dimensional regions in space.
Various embodiments of communications between MSs, or an MS and service(s), will share channels (e.g. frequencies) to communicate, depending on when in effect. Sharing a channel will involve carrying recognizable and processable signature to distinguish transmissions for carrying data. Other embodiments of communications between MSs, or an MS and service(s), will use distinct channels to communicate, depending on when in effect. The number of channels that can be concurrently listened on and/or concurrently transmitted on by a data processing system will affect which embodiments are preferred. The number of usable channels will also affect which embodiments are preferred. This disclosure avoids unnecessary detail in different communication channel embodiments so as to not obfuscate novel material. Independent of various channel embodiments within the scope and spirit of the present disclosure, MSs communicate with other MSs in a peer to peer manner, in some aspects like automated walkie-talkies.
Novel features disclosed herein need not be provided as all or none. Certain features may be isolated in some MS embodiments, or may appear as any subset of features and functionality in other embodiments.
Location Based eXchanqes (LBX) Architecture
FIG. 1A depicts a preferred embodiment high level example componentization of a MS in accordance with the present disclosure. A MS 2 includes processing behavior referred to as LBX Character 4 and Other Character 32. LBX character 4 provides processing behavior causing MS 2 to take on the character of a Location Based Exchange (LBX) MS according to the present disclosure. Other Character 32 provides processing behavior causing MS to take on character of prior art MSs in context of the type of MS. Other character 32 includes at least other processing code 34, other processing data 36, and other resources 38, all of which are well known to those skilled in the art for prior art MSs. In some embodiments, LBX character 4 components may, or may not, make use of other character 32 components 34, 36, and 38. Other character 32 components may, or may not, make use of LBX character 4 components 6 through 30.
LBX character 4 preferably includes at least Peer Interaction Processing (PIP) code 6, Peer Interaction Processing (PIP) data 8, self management processing code 18, self management processing data 20, WDR queue 22, send queue 24, receive queue 26, service informant code 28, and LBX history 30. Peer interaction processing (PIP) code 6 comprises executable code in software, firmware, or hardware form for carrying out LBX processing logic of the present disclosure when interacting with another MS. Peer interaction processing (PIP) data 8 comprises data maintained in any sort of memory of MS 2, for example hardware memory, flash memory, hard disk memory, a removable memory device, or any other memory means accessible to MS 2. PIP data 8 contains intelligence data for driving LBX processing logic of the present disclosure when interacting with other MSs. Self management processing code 18 comprises executable code in software, firmware, or hardware form for carrying out the local user interface LBX processing logic of the present disclosure. Self management processing data 20 contains intelligence data for driving processing logic of the present disclosure as disclosed for locally maintained LBX features. WDR queue 22 contains Whereabouts Data Records (WDRs) 1100, and is a First-In-First-Out (FIFO) queue when considering housekeeping for pruning the queue to a reasonable trailing history of inserted entries (i.e. remove stale entries). WDR queue 22 is preferably designed with the ability of queue entry retrieval processing similar to Standard Query Language (SQL) querying, wherein one or more entries can be retrieved by querying with a conditional match on any data field(s) of WDR 1100 and returning lists of entries in order by an ascending or descending key on one or any ascending/descending ordered list of key fields.
All disclosed queues (e.g. 22, 24, 26, 1980 and 1990 (See FIG. 19)) are implemented with an appropriate thread-safe means of queue entry peeking (makes copy of sought queue entry without removing), discarding, retrieval, insertion, and queue entry field sorted search processing. Queues are understood to have an associated implicit semaphore to ensure appropriate synchronous access to queue data in a multi-threaded environment to prevent data corruption and misuse. Such queue interfaces are well known in popular operating systems. In MS operating system environments which do not have an implicit semaphore protected queue scheme, queue accesses in the present disclosure flowcharts are to be understood to have a previous request to a queue-assigned semaphore lock prior to queue access, and a following release of the semaphore lock after queue access. Operating systems without semaphore control may use methods to achieve similar thread-safe synchronization functionality. Queue functionality may be accomplished with lists, arrays, databases (e.g. SQL) and other methodologies without departing from the spirit and scope of queue descriptions herein.
Queue 22 alternate embodiments may maintain a plurality of WDR queues which segregate WDRs 1100 by field(s) values to facilitate timely processing. WDR queue 22 may be at least two (2) separate queues: one for maintaining the MS 2 whereabouts, and one for maintaining whereabouts of other MSs. WDR queue 22 may be a single instance WDR 1100 in some embodiments which always contains the most current MS 2 whereabouts for use by MS 2 applications (may use a sister queue 22 for maintaining WDRs from remote MSs). At least one entry is to be maintained to WDR queue 22 at all times for MS 2 whereabouts.
Send queue 24 (Transmit (Tx) queue) is used to send communications data, for example as intended for a peer MS within the vicinity (e.g. nearby as indicated by maximum range 1306) of the MS 2. Receive queue 26 (Receive (Rx) queue) is used to receive communications data, for example from peer MSs within the vicinity (e.g. nearby as indicated by maximum range 1306) of the MS 2. Queues 24 and 26 may also each comprise a plurality of queues for segregating data thereon to facilitate performance in interfacing to the queues, in particular when different queue entry types and/or sizes are placed on the queue. A queue interface for sending/receiving data to/from the MS is optimal in a multi-threaded implementation to isolate communications transport layers to processing behind the send/receive queue interfaces, but alternate embodiments may send/receive data directly from a processing thread disclosed herein. Queues 22, 24, and/or 26 may be embodied as a purely data form, or SQL database, maintained at MS 2 in persistent storage, memory, or any other storage means. In some embodiments, queues 24 and 26 are not necessary since other character 32 will already have accessible resources for carrying out some LBX character 4 processing.
Queue embodiments may contain fixed length records, varying length records, pointers to fixed length records, or pointers to varying length records. If pointers are used, it is assumed that pointers may be dynamically allocated for record storage on insertions and freed upon record use after discards or retrievals.
As well known to those skilled in the art, when a thread sends on a queue 24 in anticipation of a corresponding response, there is correlation data in the data sent which is sought in a response received by a thread at queue 26 so the sent data is correlated with the received data. In a preferred embodiment, correlation is built using a round-robin generated sequence number placed in data for sending along with a unique MS identifier (MS ID). If data is not already encrypted in communications, the correlation can be encrypted. While the unique MS identifier (MS ID) may help the MS identify which (e.g. wireless) data is destined for it, correlation helps identify which data at the MS caused the response. Upon receipt of data from a responder at queue 26, correlation processing uses the returned correlation (e.g. field 1100m) to correlate the sent and received data. In preferred embodiments, the sequence number is incremented each time prior to use to ensure a unique number, otherwise it may be difficult to know which data received is a response to which data was sent, in particular when many data packets are sent within seconds. When the sequence number reaches a maximum value (e.g. 2**32−1), then it is round-robinned to 0 and is incremented from there all over again. This assures proper correlation of data between the MS and responders over time. There are other correlation schemes (e.g. signatures, random number generation, checksum counting, bit patterns, date/time stamp derivatives) to accomplish correlation functionality. If send and receive queues of Other Character 32 are used, then correlation can be used in a similar manner to correlate a response with a request (i.e. a send with a receipt).
There may be good reason to conceal the MS ID when transmitting it wirelessly. In this embodiment, the MS ID is a dependable and recognizable derivative (e.g. a pseudo MS ID) that can be detected in communications traffic by the MS having the pseudo MS ID, while concealing the true MS ID. This would conceal the true MS ID from would-be hackers sniffing wireless protocol. The derivative can always be reliably the same for simplicity of being recognized by the MS while being difficult to associate to a particular MS. Further still, a more protected MS ID (from would-be hackers that take time to deduce how an MS ID is scrambled) can itself be a dynamically changing correlation anticipated in forthcoming communications traffic, thereby concealing the real MS ID (e.g. phone number or serial number), in particular when anticipating traffic in a response, yet still useful for directing responses back to the originating MS (with the pseudo MS ID (e.g. correlation)). A MS would know which correlation is anticipated in a response by saving it to local storage for use until it becomes used (i.e. correlated in a matching response), or becomes stale. In another embodiment, a correlation response queue (like CR queue 1990) can be deployed to correlate responses with requests that contain different correlations for pseudo MS IDs. In all embodiments, the MS ID (or pseudo MS ID) of the present disclosure should enable targeting communications traffic to the MS. Service informant code 28 comprises executable code in software, firmware, or hardware form for carrying out of informing a supervisory service. The present disclosure does not require a connected web service, but there are features for keeping a service informed with activities of MS LBX. Service informant code 28 can communicate as requested any data 8, 20, 22, 24, 26, 30, 36, 38, or any other data processed at MS 2.
LBX history 30 contains historical data useful in maintaining at MS 2, and possibly useful for informing a supervisory service through service informant code 28. LBX History 30 preferably has an associated thread of processing for keeping it pruned to the satisfaction of a user of MS 2 (e.g. prefers to keep last 15 days of specified history data, and 30 days of another specified history data, etc). With a suitable user interface to MS 2, a user may browse, manage, alter, delete, or add to LBX History 30 as is relevant to processing described herein. Service informant code 28 may be used to cause sending of an outbound email, SMS message, outbound data packet, or any other outbound communication in accordance with LBX of the MS.
PIP data 8 preferably includes at least permissions 10, charters 12, statistics 14, and a service directory 16. Permissions 10 are configured to grant permissions to other MS users for interacting the way the user of MS 2 desires for them to interact. Therefore, permissions 10 contain permissions granted from the MS 2 user to other MS users. In another embodiment, permissions 10 additionally, or alternatively, contain permissions granted from other MS users to the MS 2 user. Permissions are maintained completely local to the MS 2. Charters 12 provide LBX behavior conditional expressions for how MSs should interact with MS 2. Charters 12 are configured by the MS 2 user for other MS users. In another embodiment, charters 12 additionally, or alternatively, are configured by other MS users for the MS 2 user. Some charters expressions depend on permissions 10. Statistics 14 are maintained at MS 2 for reflecting peer (MS) to peer (MS) interactions of interest that occurred at MS 2. In another embodiment, statistics 14 additionally, or alternatively, reflect peer (MS) to peer (MS) interactions that occurred at other MSs, preferably depending on permissions 10. Service informant code 28 may, or may not, inform a service of statistics 14 maintained. Service directory 16 includes routing entries for how MS 2 will find a sought service, or how another MS can find a sought service through MS 2.
In some embodiments, any code (e.g. 6, 18, 28, 34, 38) can access, manage, use, alter, or discard any data (e.g. 8, 20, 22, 24, 26, 30, 36, 38) of any other component in MS 2. Other embodiments may choose to keep processing of LBX character 4 and other character 32 disjoint from each other. Rectangular component boundaries are logical component representations and do not have to delineate who has access to what. MS (also MSs) references discussed herein in context for the new and useful features and functionality disclosed is understood to be an MS 2 (MSs 2).
FIG. 1B depicts a Location Based eXchanges (LBX) architectural illustration for discussing the present disclosure. LBX MSs are peers to each other for locational features and functionality. An MS 2 communicates with other MSs without requiring a service for interaction. For example, FIG. 1B depicts a wireless network 40 of five (5) MSs. Each is able to directly communicate with others that are in the vicinity (e.g. nearby as indicated by maximum range 1306). In a preferred embodiment, communications are limited reliability wireless broadcast datagrams having recognizable data packet identifiers. In another embodiment, wireless communications are reliable transport protocols carried out by the MSs, such as TCP/IP. In other embodiments, usual communications data associated with other character 32 include new data (e.g. Communications Key 1304) in transmissions for being recognized by MSs within the vicinity. For example, as an MS conventionally communicates, LBX data is added to the protocol so that other MSs in the vicinity can detect, access, and use the data. The advantage to this is that as MSs use wireless communications to carry out conventional behavior, new LBX behavior is provided by simply incorporating additional information (e.g. Communications Key 1304) to existing communications.
Regardless of the embodiment, an MS 2 can communicate with any of its peers in the vicinity using methods described below. Regardless of the embodiment, a communication path 42 between any two MSs is understood to be potentially bidirectional, but certainly at least unidirectional. The bidirectional path 42 may use one communications method for one direction and a completely different communications method for the other, but ultimately each can communicate to each other. When considering that a path 42 comprises two unidirectional communications paths, there are N*(N−1) unidirectional paths for N MSs in a network 40. For example, 10 MSs results in 90 (i.e. 10*9) one way paths of communications between all 10 MSs for enabling them to talk to each other. Sharing of the same signaling channels is preferred to minimize the number of MS threads listening on distinct channels. Flowcharts are understood to process at incredibly high processing speeds, in particular for timely communications processing.
FIG. 1C depicts a Location Based Services (LBS) architectural illustration for discussing prior art of the present disclosure. In order for a MS to interact for LBS with another MS, there is service architecture 44 for accomplishing the interaction. For example, to detect that MS 1 is nearby MS N, the service is indispensably involved in maintaining data and carrying out processing. For example, to detect that MS 1 is arriving to, or departing from, a geofenced perimeter area configured by MS N, the service was indispensably involved in maintaining data and carrying out processing. For example, for MS N to locate MS 1 on a live map, the service was indispensably involved in maintaining data and carrying out processing. In another example, to grant and revoke permissions from MS 1 to MS N, the service was indispensably involved in maintaining data and carrying out processing. While it is advantageous to require a single bidirectional path 46 for each MS (i.e. two unidirectional communications paths; (2*N) unidirectional paths for N MSs), there are severe requirements for service(s) when there are lots of MSs (i.e. when N is large). Wireless MSs have advanced beyond cell phones, and are capable of housing significant parallel processing, processing speed, increased wireless transmission speeds and distances, increased memory, and richer features.
FIG. 1D depicts a block diagram of a data processing system useful for implementing a MS, ILM, DLM, centralized server, or any other data processing system described herein. An MS 2 is a data processing system 50. Data processing system 50 includes at least one processor 52 (e.g. Central Processing Unit (CPU)) coupled to a bus 54. Bus 54 may include a switch, or may in fact be a switch 54 to provide dedicated connectivity between components of data processing system 50. Bus (and/or switch) 54 is a preferred embodiment coupling interface between data processing system 50 components. The data processing system 50 also includes main memory 56, for example, random access memory (RAM). Memory 56 may include multiple memory cards, types, interfaces, and/or technologies. The data processing system 50 may include secondary storage devices 58 such as persistent storage 60, and/or removable storage device 62, for example as a compact disk, floppy diskette, USB flash, or the like, also connected to bus (or switch) 54. In some embodiments, persistent storage devices could be remote to the data processing system 50 and coupled through an appropriate communications interface. Persistent storage 60 may include flash memory, disk drive memory, magnetic, charged, or bubble storage, and/or multiple interfaces and/or technologies, perhaps in software interface form of variables, a database, shared memory, etc.
The data processing system 50 may also include a display device interface 64 for driving a connected display device (not shown). The data processing system 50 may further include one or more input peripheral interface(s) 66 to input devices such as a keyboard, keypad, Personal Digital Assistant (PDA) writing implements, touch interfaces, mouse, voice interface, or the like. User input (“user input”, “user events” and “user actions” used interchangeably) to the data processing system are inputs accepted by the input peripheral interface(s) 66. The data processing system 50 may still further include one or more output peripheral interface(s) 68 to output devices such as a printer, facsimile device, or the like. Output peripherals may also be available via an appropriate interface.
Data processing system 50 will include a communications interface(s) 70 for communicating to another data processing system 72 via analog signal waves, digital signal waves, infrared proximity, copper wire, optical fiber, or other wave spectrums described herein. A MS may have multiple communications interfaces 70 (e.g. cellular connectivity, 802.x, etc). Other data processing system 72 may be an MS. Other data processing system 72 may be a service. Other data processing system 72 is a service data processing system when MS 50 communicates to other data processing system 72 by way of service informant code 28. In any case, the MS and other data processing system are said to be interoperating when communicating.
Data processing system programs (also called control logic) may be completely inherent in the processor(s) 52 being a customized semiconductor, or may be stored in main memory 56 for execution by processor(s) 52 as the result of a read-only memory (ROM) load (not shown), or may be loaded from a secondary storage device into main memory 56 for execution by processor(s) 52. Such programs, when executed, enable the data processing system 50 to perform features of the present disclosure as discussed herein. Accordingly, such data processing system programs represent controllers of the data processing system.
In some embodiments, the disclosure is directed to a control logic program product comprising at least one processor 52 having control logic (software, firmware, hardware microcode) stored therein. The control logic, when executed by processor(s) 52, causes the processor(s) 52 to provide functions of the disclosure as described herein. In another embodiment, this disclosure is implemented primarily in hardware, for example, using a prefabricated component state machine (or multiple state machines) in a semiconductor element such as a processor 52.
Those skilled in the art will appreciate various modifications to the data processing system 50 without departing from the spirit and scope of this disclosure. A data processing system, and more particularly a MS, preferably has capability for many threads of simultaneous processing which provide control logic and/or processing. These threads can be embodied as time sliced threads of processing on a single hardware processor, multiple processors, multi-core processors, Digital Signal Processors (DSPs), or the like, or combinations thereof. Such multi-threaded processing can concurrently serve large numbers of concurrent MS tasks. Concurrent processing may be provided with distinct hardware processing and/or as appropriate software driven time-sliced thread processing. Those skilled in the art recognize that having multiple threads of execution on an MS is accomplished in many different ways without departing from the spirit and scope of this disclosure. This disclosure strives to deploy software to existing MS hardware configurations, but the disclosed software can be deployed as burned-in microcode to new hardware of MSs.
Data processing aspects of drawings/flowcharts are preferably multi-threaded so that many MSs and applicable data processing systems are interfaced with in a timely and optimal manner. Data processing system 50 may also include its own clock mechanism (not shown), if not an interface to an atomic clock or other clock mechanism, to ensure an appropriately accurate measurement of time in order to appropriately carry out processing described below. In some embodiments, Network Time Protocol (NTP) is used to keep a consistent universal time for MSs and other data processing systems in communications with MSs. This is most advantageous to prevent unnecessary round-tripping of data between data processing systems to determine timing (e.g. Time Difference of Arrival (TDOA)) measurements. A NTP synchronized date/time stamp maintained in communications is compared by a receiving data processing system for comparing with its own NTP date/time stamp to measure TOA (time of arrival (i.e. time taken to arrive)). Of course, in the absence of NTP used by the sender and receiver, TOA is also calculated in a bidirectional transmission using correlation. In this disclosure, TOA measurements from one location technology are used for triangulating with TOA measurements from another location technology, not just for determining “how close”. Therefore, TDOA terminology is generally used herein to refer to the most basic TOA measurement of a wave spectrum signal being the difference between when it was sent and when it was received. TDOA is also used to describe using the difference of such measurements to locate (triangulate). NTP use among participating systems has the advantage of a single unidirectional broadcast data packet containing all a receiving system requires to measure TDOA, by knowing when the data was sent (date/time stamp in packet) and when the data was received (signal detected and processed by receiving system). A NTP clock source (e.g. atomic clock) used in a network is to be reasonably granular to carry out measurements, and ensures participating MSs are updated timely according to anticipated time drifts of their own clocks. There are many well known methods for accomplishing NTP, some which require dedicated thread(s) for NTP processing, and some which use certain data transmitted to and from a source to keep time in synch.
Those skilled in the art recognize that NTP accuracy depends on participating MS clocks and processing timing, as well as time server source(s). Radio wave connected NTP time server(s) is typically accurate to as granular as 1 millisecond. Global Positioning System (GPS) time servers provide accuracy as granular as 50 microseconds. GPS timing receivers provide accuracy to around 100 nanoseconds, but this may be reduced by timing latencies in time server operating systems. With advancements in hardware, microcode, and software, obvious improvements are being made to NTP. In NTP use embodiments of this disclosure, an appropriate synchronization of time is used for functional interoperability between MSs and other data processing systems using NTP. NTP is not required in this disclosure, but it is an advantage when in use.
LBX Directly Located Mobile Data Processing Systems (DLMs)
FIG. 1E depicts a network illustration for discussing various deployments of whereabouts processing aspects of the present disclosure. In some embodiments, a cellular network cluster 102 and cellular network cluster 104 are parts of a larger cellular network. Cellular network cluster 102 contains a controller 106 and a plurality of base stations, shown generally as base stations 108. Each base station covers a single cell of the cellular network cluster, and each base station 108 communicates through a wireless connection with the controller 106 for call processing, as is well known in the art. Wireless devices communicate via the nearest base station (i.e. the cell the device currently resides in), for example base station 108b. Roaming functionality is provided when a wireless device roams from one cell to another so that a session is properly maintained with proper signal strength. Controller 106 acts like a telephony switch when a wireless device roams across cells, and it communicates with controller 110 via a wireless connection so that a wireless device can also roam to other clusters over a larger geographical area. Controller 110 may be connected to a controller 112 in a cellular cluster through a physical connection, for example, copper wire, optical fiber, or the like. This enables cellular clusters to be great distances from each other. Controller 112 may in fact be connected with a physical connection to its base stations, shown generally as base stations 114. Base stations may communicate directly with the controller 112, for example, base station 114e. Base stations may communicate indirectly to the controller 112, for example base station 114a by way of base station 114d. It is well known in the art that many options exist for enabling interoperating communications between controllers and base stations for the purpose of managing a cellular network. A cellular network cluster 116 may be located in a different country. Base controller 118 may communicate with controller 110 through a Public Service Telephone Network (PSTN) by way of a telephony switch 120, PSTN 122, and telephony switch 124, respectively. Telephony switch 120 and telephony switch 124 may be private or public. In one cellular network embodiment of the present disclosure, the services execute at controllers, for example controller 110. In some embodiments, the MS includes processing that executes at a wireless device, for example mobile laptop computer 126, wireless telephone 128, a personal digital assistant (PDA) 130, an iPhone 170, or the like. As the MS moves about, positional attributes are monitored for determining location. The MS may be handheld, or installed in a moving vehicle. Locating a wireless device using wireless techniques such as Time Difference of Arrival (TDOA) and Angle Of Arrival (AOA) are well known in the art. The service may also execute on a server computer accessible to controllers, for example server computer 132, provided an appropriate timely connection exists between cellular network controller(s) and the server computer 132. Wireless devices (i.e. MSs) are preferably known by a unique identifier, for example a phone number, caller id, device identifier, or like appropriate unique handle.
In another embodiment of the present disclosure, GPS satellites such as satellite 134, satellite 136, and satellite 138 provide information, as is well known in the art, to GPS devices on earth for triangulation locating of the GPS device. In this embodiment, a MS has integrated GPS functionality so that the MS monitors its positions. The MS is preferably known by a unique identifier, for example a phone number, caller id, device identifier, or like appropriate unique handle.
In yet another embodiment of the present disclosure, a physically connected device, for example, telephone 140, computer 142, PDA 144, telephone 146, and fax machine 148, may be newly physically connected to a network. Each is a MS, although the mobility is limited. Physical connections include copper wire, optical fiber, USB, or any other physical connection, by any communications protocol thereon. Devices are preferably known by a unique identifier, for example a phone number, caller id, device identifier, physical or logical network address, or like appropriate unique handle. The MS is detected for being newly located when physically connected. A service can be communicated to upon detecting connectivity. The service may execute at an Automatic Response Unit (ARU) 150, a telephony switch, for example telephony switch 120, a web server 152 (for example, connected through a gateway 154), or a like data processing system that communicates with the MS in any of a variety of ways as well known to those skilled the art. MS detection may be a result of the MS initiating a communication with the service directly or indirectly. Thus, a user may connect his laptop to a hotel network, initiate a communication with the service, and the service determines that the user is in a different location than the previous communication. A local area network (LAN) 156 may contain a variety of connected devices, each an MS that later becomes connected to a local area network 158 at a different location, such as a PDA 160, a server computer 162, a printer 164, an internet protocol telephone 166, a computer 168, or the like. Hard copy presentation could be made to printer 164 and fax 148.
Current technology enables devices to communicate with each other, and other systems, through a variety of heterogeneous system and communication methods. Current technology allows executable processing to run on diverse devices and systems. Current technology allows communications between the devices and/or systems over a plethora of methodologies at close or long distance. Many technologies also exist for automatic locating of devices. It is well known how to have an interoperating communications system that comprises a plurality of individual systems communicating with each other with one or more protocols. As is further known in the art of developing software, executable processing of the present disclosure may be developed to run on a particular target data processing system in a particular manner, or customized at install time to execute on a particular data processing system in a particular manner.
FIG. 2A depicts an illustration for describing automatic location of a MS, for example a DLM 200, through the MS coming into range of a stationary cellular tower. A DLM 200, or any of a variety of MSs, travels within range of a cell tower, for example cell tower 108b. The known cell tower location is used to automatically detect the location of the DLM 200. In fact, any DLM that travels within the cell served by cell tower 108b is identified as the location of cell tower 108b. The confidence of a location of a DLM 200 is low when the cell coverage of cell tower 108b is large. In contrast, the confidence of a location of a DLM 200 is higher when the cell coverage of cell tower 108b is smaller. However, depending on the applications locating DLMs using this method, the locating can be quite acceptable. Location confidence is improved with a TDOA measurement for the elapsed time of communication between DLM 200 and cell tower to determine how close the MS is to the cell tower. Cell tower 108b can process all locating by itself, or with interoperability to other services as connected to cell tower 108b in FIG. 1E. Cell tower 108b can communicate the location of DLM 200 to a service, to the DLM 200, to other MSs within its coverage area, any combination thereof, or to any connected data processing system, or MS, of FIG. 1E.
FIG. 2B depicts an illustration for describing automatic location of a MS, for example a DLM 200, through the MS coming into range of some stationary antenna. DLM 200, or any of a variety of MSs, travels within range of a stationary antenna 202 that may be mounted to a stationary object 204. The known antenna location is used to automatically detect the location of the DLM 200. In fact, any DLM that travels within the coverage area served by antenna 202 is identified as the location of antenna 202. The confidence of a location of a DLM 200 is low when the antenna coverage area of antenna 202 is large. In contrast, the confidence of a location of a DLM 200 is higher when the antenna coverage area of antenna 202 is smaller. However, depending on the applications locating DLMs using this method, the locating can be quite acceptable. Location confidence is improved with a TDOA measurement for the elapsed time of communication between DLM 200 and a particular antenna to determine how close the MS is to the antenna. Antenna 202 can process all locating by itself (with connected data processing system (not shown) as well known to those skilled in the art), or with interoperability to other services as connected to antenna 202, for example with connectivity described in FIG. 1E. Antenna 202 can be used to communicate the location of DLM 200 to a service, to the DLM 200, to other MSs within its coverage area, any combination thereof, or to any connected data processing system, or MS, of FIG. 1E.
FIG. 2C depicts an illustration for discussing an example of automatically locating a MS, for example a DLM 200, through the MS coming into range of some stationary antenna. DLM 200, or any of a variety of MSs, travels within range of a stationary antenna 212 that may be mounted to a stationary object, such as building 210. The known antenna location is used to automatically detect the location of the DLM 200. In fact, any DLM that travels within the coverage area served by antenna 212 is identified as the location of antenna 212. The confidence of a location of a DLM 200 is low when the antenna coverage area of antenna 212 is large. In contrast, the confidence of a location of a DLM 200 is higher when the antenna coverage area of antenna 212 is smaller. However, depending on the applications locating DLMs using this method, the locating can be quite acceptable. Location confidence is improved with a TDOA measurement as described above. Antenna 212 can process all locating by itself (with connected data processing system (not shown) as well known to those skilled in the art), or with interoperability to other services as connected to antenna 212, for example with connectivity described in FIG. 1E. Antenna 212 can be used to communicate the location of DLM 200 to a service, to the DLM 200, to other MSs within its coverage area, any combination thereof, or to any connected data processing system, or MS, of FIG. 1E.
Once DLM 200 is within the building 210, a strategically placed antenna 216 with a desired detection range within the building is used to detect the DLM 200 coming into its proximity. Wall breakout 214 is used to see the antenna 216 through the building 210. The known antenna 216 location is used to automatically detect the location of the DLM 200. In fact, any DLM that travels within the coverage area served by antenna 216 is identified as the location of antenna 216. The confidence of a location of a DLM 200 is low when the antenna coverage area of antenna 216 is large. In contrast, the confidence of a location of a DLM 200 is higher when the antenna coverage area of antenna 216 is smaller. Travels of DLM 200 can be limited by objects, pathways, or other limiting circumstances of traffic, to provide a higher confidence of location of DLM 200 when located by antenna 216, or when located by any locating antenna described herein which detects MSs coming within range of its location. Location confidence is improved with a TDOA measurement as described above. Antenna 216 can process all locating by itself (with connected data processing system (not shown) as well known to those skilled in the art), or with interoperability to other services as connected to antenna 216, for example with connectivity described in FIG. 1E. Antenna 216 can be used to communicate the location of DLM 200 to a service, to the DLM 200, to other MSs within its coverage area, any combination thereof, or to any connected data processing system, or MS, of FIG. 1E. Other in-range detection antennas of a FIG. 2C embodiment may be strategically placed to facilitate warehouse operations such as in Kubler et al.
FIG. 2D depicts a flowchart for describing a preferred embodiment of a service whereabouts update event of an antenna in-range detected MS, for example a DLM 200, when MS location awareness is monitored by a stationary antenna, or cell tower (i.e. the service thereof). FIGS. 2A through 2C location detection processing are well known in the art. FIG. 2D describes relevant processing for informing MSs of their own whereabouts. Processing begins at block 230 when a MS signal deserving a response has been received and continues to block 232 where the antenna or cell tower service has authenticated the MS signal. A MS signal can be received for processing by blocks 230 through 242 as the result of a continuous, or pulsed, broadcast or beaconing by the MS (FIG. 13A), perhaps as part of usual communication protocol in progress for the MS (FIG. 13A usual data 1302 with embedded Communications Key (CK) 1304), or an MS response to continuous, or pulsed, broadcast or beaconing via the service connected antenna (FIG. 13C). MS and/or service transmission can be appropriately correlated for a response (as described above) which additionally facilitates embodiments using TDOA measurements (time of communications between the MS and antenna, or cell tower) to determine at least how close is the MS in range (or use in conjunction with other data to triangulate the MS location). The MS is preferably authenticated by a unique MS identifier such as a phone number, address, name, serial number, or any other unique handle to the MS. In this, and any other embodiments disclosed, an MS may be authenticated using a group identifier handle indicating membership to a supported/known group deserving further processing. Authentication will preferably consult a database for authenticating that the MS is known. Block 232 continues to block 234 where the signal received is immediately responded back to the MS, via the antenna, containing at least correlation along with whereabouts information for a Whereabouts Data Record (WDR) 1100 associated with the antenna (or cell tower). Thereafter, the MS receives the correlated response containing new data at block 236 and completes a local whereabouts data record 1100 (i.e. WDR 1100) using data received along with other data determined by the MS.
In another embodiment, blocks 232 through 234 are not required. A service connected antenna (or cell tower) periodically broadcasts its whereabouts (WDR info (e.g. FIG. 13C)) and MSs in the vicinity use that directly at block 236. The MS can choose to use only the confidence and location provided, or may determine a TDOA measurement for determining how close it is. If the date/time stamp field 1100b indicates NTP is in use by the service, and the MS is also using NTP, then a TDOA measurement can be determined using the one unidirectional broadcast via the antenna by using the date/time stamp field 1100b received with when the WDR information was received by the MS (subtract time difference and use known wave spectrum for distance). If either the service or MS is not NTP enabled, then a bidirectional correlated data flow between the service and MS is used to assess a TDOA measurement in terms of time of the MS. One embodiment provides the TDOA measurement from the service to the MS. Another embodiment calculates the TDOA measurement at the MS.
Network Time protocol (NTP) can ensure MSs have the same atomic clock time as the data processing systems driving antennas (or cell towers) they will encounter. Then, date/time stamps can be used in a single direction (unidirectional) broadcast packet to determine how long it took to arrive to/from the MS. In an NTP embodiment, the MS (FIG. 13A) and/or the antenna (FIG. 13C) sends a date/time stamp in the pulse, beacon, or protocol. Upon receipt, the antenna (or cell tower) service data processing system communicates how long the packet took from an MS to the antenna (or cell tower) by comparing the date/time stamp in the packet and a date/time stamp of when it was received. The service may also set the confidence value, before sending WDR information to the MS. Similarly, an MS can compare a date/time stamp in the unidirectional broadcast packet sent from a locating service (FIG. 13C) with when received by the MS. So, NTP facilitates TDOA measurements in a single broadcast communication between systems through incorporation to usual communications data 1302 with a date/time stamp in Communications Key (CK) 1304, or alternatively in new data 1302. Similarly, NTP facilitates TDOA measurement in a single broadcast communication between systems through incorporation to usual communications data 1312 with a date/time stamp in Communications Key (CK) 1314, or alternatively in new data 1312.
The following template is used in this disclosure to highlight field settings. See FIG. 11A descriptions. Fields are set to the following upon exit from block 236:
MS ID field 1100a is preferably set with: Unique MS identifier of the MS invoking block 240. This field is used to uniquely distinguish this MS WDRs on queue 22 from other originated WDRs.
DATE/TIME STAMP field 1100b is preferably set with: Date/time stamp for WDR completion at block 236 to the finest granulation of time achievable by the MS. The NTP use indicator is set appropriately.
LOCATION field 1100c is preferably set with: Location of stationary antenna (or cell tower) as communicated by the service to the MS.
CONFIDENCE field 1100d is preferably set with: The same value (e.g. 76) for any range within the antenna (or cell tower), or may be adjusted using the TDOA measurement (e.g. amount of time detected by the MS for the response at block 234). The longer time it takes between the MS sending a signal detected at block 232 and the response with data back received by the MS (block 234), the less confidence there is for being located because the MS must be a larger distance from the antenna or cell tower. The less time it takes between the MS sending a signal detected at block 232 and the response with data back, the more confidence there is for being located because the MS must be a closer distance to the antenna or cell tower. Confidence values are standardized for all location technologies. In some embodiments of FIG. 2D processing, a confidence value can be set for 1 through 100 (1 being lowest confidence and 100 being highest confidence) wherein a unit of measurement between the MS and antenna (or cell tower) is used directly for the confidence value. For example, 20 meters is used as the unit of measurement. For each unit of 20 meters distance determined by the TDOA measurement, assign a value of 1, up to a worst case of 100 (i.e. 2000 meters). Round the 20 meter unit of distance such that 0 meters to <25 meters is 20 meters (i.e. 1 unit of measurement), 26 meters to <45 meters is 40 meters (i.e. 2 units of measurement), and so on. Once the number of units is determined, subtract that number from 101 for the confidence value (i.e. 1 unit=confidence value 100, 20 units=confidence value 81; 100 units or greater=confidence value of 1). Yet another embodiment will use a standard confidence value for this “coming in range” technology such as 76 and then further increase or decrease the confidence using the TDOA measurement. Many embodiments exist for quantifying a higher versus lower confidence. In any case, a confidence value (e.g. 76) is determined by the MS, service, or both (e.g. MS uses TDOA measurement to modify confidence sent by service).

LOCATION TECHNOLOGY field 1100e is preferably set with: “Server Antenna Range” for an antenna detecting the MS, and is set to “Server Cell Range” for a cell tower detecting the MS. The originator indicator is set to DLM.

LOCATION REFERENCE INFO field 1100f is preferably set with: The period of time for communications between the antenna and the MS (a TDOA measurement), if known; a communications signal strength, if available; wave spectrum used (e.g. from MS receive processing), if available; particular communications interface 70, if available. The TDOA measurement may be converted to a distance using wave spectrum information. The values populated here should have already been factored into the confidence value at block 236.

COMMUNICATIONS REFERENCE INFO field 1100g is preferably set with: Parameters uniquely identifying a/the service (e.g. antenna (or cell tower)) and how to best communicate with it again, if available. May not be set, regardless if received from the service.

SPEED field 1100h is preferably set with: Data received by MS at block 234, if available.

HEADING field 1100i is preferably set with: Data received by MS at block 234, if available.

ELEVATION field 1100j is preferably set with: data received by MS at block 234, if available. Elevation field 1100j is preferably associated with the antenna (or cell tower) by the elevation/altitude of the antenna (or cell tower).

APPLICATION FIELDS field 1100k is preferably set with: Data received at block 234 by the MS, or set by data available to the MS, or set by both the locating service for the antenna (or cell tower) and the MS itself. Application fields include, and are not limited to, MS navigation APIs in use, social web site identifying information, application information for applications used, accessed, or in use by the MS, or any other information complementing whereabouts of the MS.

CORRELATION FIELD 1100m is preferably set with: Not Applicable (i.e. not maintained to queue 22).

SENT DATE/TIME STAMP field 1100n is preferably set with: Not Applicable (i.e. not maintained to queue 22).

RECEIVED DATE/TIME STAMP field 1100p is preferably set with: Not Applicable (i.e. not maintained to queue 22).

A service connected to the antenna (or cell tower) preferably uses historical information and artificial intelligence interrogation of MS travels to determine fields 1100h and 1100i. Block 236 continues to block 238 where parameters are prepared for passing to FIG. 2F processing invoked at block 240. Parameters are set for: WDRREF=a reference or pointer to the WDR; DELETEQ=FIG. 2D location queue discard processing; and SUPER=FIG. 2D supervisory notification processing. Thereafter, block 240 invokes FIG. 2F processing and FIG. 2D processing terminates at block 242. FIG. 2F processing will insert to queue 22 so this MS knows at least its own whereabouts whenever possible. A single data instance embodiment of WDR queue 22 will cause FIG. 2F to update the single record of WDR information for being current upon exit from block 240 (this is true for all flowchart blocks invoking FIG. 2F processing).
With reference now to FIG. 2F, depicted is a flowchart for describing a preferred embodiment of a procedure for inserting a Whereabouts Data Record (WDR) 1100 to MS WDR queue 22. Appropriate semaphores are used for variables which can be accessed simultaneously by another thread other than the caller. With reference now to FIG. 2F, procedure processing starts at block 270 and continues to block 272 where parameters passed from the invoking block of processing, for example block 240, are determined. The variable WDRREF is set by the caller to a reference or pointer to the WDR so subsequent blocks of FIG. 2F can access the WDR. The variable DELETEQ is set by the caller so that block 292 knows how to discard obsolete location queue entries. The DELETEQ variable can be a multi-field record (or reference thereof) for how to prune. The variable SUPER is set by the caller so that block 294 knows under what condition(s), and which data, to contact a supervisory service. The SUPER variable can be a multi-field record (or reference thereof) for instruction.
Block 272 continues to block 274 where the DLMV (see FIG. 12 and later discussions for DLMV (DLM role(s) List Variable)), or ILMV (see FIG. 12 and later discussions for ILMV (ILM role(s) List Variable)), is checked for an enabled role matching the WDR for insertion (e.g. DLM: location technology field 1100e (technology and originator indicator) when MS ID=this MS; ILM: DLM or ILM indicator when MS ID not this MS). If no corresponding DLMV/ILMV role is enabled for the WDR to insert, then processing continues to block 294 (the WDR is not inserted to queue 22). If the ILMV/DLMV role for the WDR is enabled, then processing continues to block 276 where the confidence of the WDR 1100 is validated prior to insertion. An alternate embodiment to FIG. 2F will not have block 274 (i.e. block 272 continues directly to block 276) since appropriate DLM and/or ILM processing may be terminated anyway when DLM/ILM role(s) are disabled (see FIG. 14A/B).
If block 276 determines the data to be inserted is not of acceptable confidence (e.g. field 1100d<confidence floor value (see FIG. 14A/B)), then processing continues to block 294 described below. If block 276 determines the data to be inserted is of acceptable confidence (e.g. field 1100d>70), then processing continues to block 278 for checking the intent of the WDR insertion.
If block 278 determines the WDR for insert is a WDR describing whereabouts for this MS (i.e. MS ID matching MS of FIG. 2F processing (DLM: FIGS. 2A through 9B, or ILM: FIG. 26A/B)), then processing continues to block 280. If block 278 determines the WDR for insert is from a remote ILM or DLM (i.e. MS ID does not match MS of FIG. 2F processing), then processing continues to block 290. Block 280 peeks the WDR queue 22 for the most recent highest confidence entry for this MS whereabouts by searching queue 22 for: the MS ID field 1100a matching the MS ID of FIG. 2F processing, and a confidence field 1100d greater than or equal to the confidence floor value, and a most recent date/time stamp field 1100b. Thereafter, if block 282 determines one was found, then processing continues to block 284, otherwise processing continues to block 286 where a Last Whereabouts date/Time stamp (LWT) variable is set to field 1100b of the WDR for insert (e.g. first MS whereabouts WDR), and processing continues to block 288.
If block 284 determines the WDR for insertion has significantly moved (i.e. using a movement tolerance configuration (e.g. 3 meters) with fields 1100c of the WDR for insert and the WDR peeked at block 280), then block 286 sets the LWT (Last Whereabouts date/Time stamp) variable (with appropriate semaphore) to field 1100b of the WDR for insert, and processing continues to block 288, otherwise processing continues directly to block 288 (thereby keeping the LWT as its last setting). The LWT is to hold the most recent date/time stamp of when the MS significantly moved as defined by a movement tolerance. The movement tolerance can be system defined or configured, or user configured in FIG. 14 by an option for configuration detected at block 1408, and then using the Configure Value procedure of FIG. 18 (like confidence floor value configuration).
Block 288 accesses the DLMV and updates it with a new DLM role if there is not one present for it. This ensures a correct list of DLMV roles are available for configuration by FIG. 14. Preferably, by default an unanticipated DLMV role is enabled (helps inform the user of its availability). Likewise in another embodiment, ILMV roles can be similarly updated, in particular if a more granulated list embodiment is maintained to the ILMV, or if unanticipated results help to identify another configurable role. By default, block 274 should allow unanticipated roles to continue with WDR insertion processing, and then block 288 can add the role, enable it, and a user can decide what to do with it in configuration (FIG. 14A/B).
Thereafter, the WDR 1100 is inserted to the WDR queue 22 at block 290, block 292 discards any obsolete records from the queue as directed by the caller (invoker), and processing continues to block 294. The WDR queue 22 preferably contains a list of historically MS maintained Whereabouts Data Records (WDRs) as the MS travels. When the MS needs its own location, for example from an application access, or to help locate an ILM, the queue is accessed for returning the WDR with the highest confidence value (field 1100d) in the most recent time (field 1100b) for the MS (field 1100a). Block 292 preferably discards by using fields 1100b and 1100d relative to other WDRs. The queue should not be allowed to get too large. This will affect memory (or storage) utilization at the MS as well as timeliness in accessing a sought queue entry. Block 292 also preferably discards WDRs from queue 22 by moving selected WDRs to LBX History 30.
As described above, queue interfaces assume an implicit semaphore for properly accessing queue 22. There may be ILMs requesting to be located, or local applications of the MS may request to access the MS whereabouts. Executable thread(s) at the MS can accesses the queue in a thread-safe manner for responding to those requests. The MS may also have multiple threads of processing for managing whereabouts information from DLMs, ILMs, or stationary location services. The more concurrently executable threads available to the MS, the better the MS is able to locate itself and respond to others (e.g. MSs). There can be many location systems and methods used to keeping a MS informed of its own whereabouts during travel. While the preferred embodiment is to maximize thread availability, the obvious minimum requirement is to have at least 1 executable thread available to the MS. As described above, in operating system environments without proper queue interfaces, queue access blocks are first preceded by an explicit request for a semaphore lock to access queue 22 (waits until obtained), and then followed by a block for releasing the semaphore lock to another thread for use. Also, in the present disclosure it is assumed in blocks which access data accessible to more than 1 concurrent thread (e.g. shared memory access to DLMV or ILMV at block 274) that an appropriate semaphore (created at block 1220) protect synchronous access.
If block 294 determines information (e.g. whereabouts) should be communicated by service informant code 28 to a supervisory service, for example a service 1050, then block 296 communicates specified data to the service and processing terminates at block 298 by returning to the invoker (caller). If block 294 determines a supervisory service is not to be informed, then processing terminates with an appropriate return to the caller at block 298. Service informant code 28, at block 296, can send information as data that is reliably acknowledged on receipt, or as a datagram which most likely (but unreliably) is received.
Depending on the SUPER variable, block 294 may opt to communicate every time a WDR is placed to the queue, or when a reasonable amount of time has passed since last communicating to the supervisory service, or when a WDR confidence reaches a certain sought value, or when any WDR field or fields contain certain sought information, or when a reasonably large number of entries exist in WDR queue 22, or for any processing condition encountered by blocks 270 through 298, or for any processing condition encountered by caller processing up to the invocation of FIG. 2F processing. Different embodiments will send a single WDR 1100 at block 296, a plurality of WDRs 1100, or any other data. Various SUPER parameter(s) embodiments for FIG. 2F caller parameters can indicate what, when, where and how to send certain data. Block 296 may send an email, an SMS message, or use other means for conveying data. Service informant code 28 may send LBX history 30, statistics 14 and/or any other data 8, data 20, queue data, data 36 or resources 38. Service informant code 28 may update data in history 30, statistics 14 or any other data 8, data 20, queue data, data 36 and/or resources 38, possibly using conditions of this data to determine what is updated. Blocks 294 and 296 may be omitted in some embodiments.
If a single WDR is sent at block 296 as passed to FIG. 2F processing, then the WDR parameter determined at block 272 is accessed. If a plurality of WDRs is sent at block 296, then block 296 appropriately interfaces in a thread-safe manner to queue 22, and sends the WDRs.
Some preferred embodiments do not incorporate blocks 278 through 286. (i.e. block 276 continues to block 288 if confidence ok). Blocks 278 through 286 are for the purpose of implementing maintaining a date/time stamp of last MS significant movement (using a movement tolerance). Architecture 1900 uses FIG. 2F, as does DLM processing. FIG. 2F must perform well for the preferred multithreaded architecture 1900. Block 280 performs a peek, and block 284 can be quite timely depending on embodiments used for location field 1100c. A movement tolerance incorporated at the MS is not necessary, but may be nice to have. Therefore, blocks 278 through 286 are optional blocks of processing.
FIG. 2F may also maintain (with appropriate semaphore) the most recent WDR describing whereabouts of the MS of FIG. 2F processing to a single data record every time a new one is to be inserted. This allows applications needing current whereabouts to simply access a current WDR, rather than interface to a plurality of WDRs at queue 22. For example, there could be a new block 289 for updating the single WDR 1100 (just prior to block 290 such that incoming blocks to block 290 go to new block 289, and new block 289 continues to block 290).
With reference now to FIG. 2E, depicted is a flowchart for describing a preferred embodiment of an MS whereabouts update event of an antenna in-range detected MS, for example a DLM 200, when MS location awareness is monitored by the MS. FIG. 2E describes relevant processing for MSs to maintain their own whereabouts. Processing begins at block 250 when the MS receives a signal from an antenna (or cell tower) deserving a response and continues to block 252 where the antenna or cell tower signal is authenticated by the MS as being a legitimate signal for processing. The signal can be received for processing by blocks 250 through 264 as the result of a continuous, or pulsed, broadcast or beaconing by the antenna, or cell tower (FIG. 13C), or as part of usual communication protocol in progress with at least one MS (FIG. 13C usual data 1312 with embedded Communications Key 1314), or as a response via antenna to a previous MS signal (FIG. 13A). The signal is preferably authenticated by a data parsed signature deserving further processing. Block 252 continues to block 254 where the MS sends an outbound request for soliciting an immediate response from the antenna (or cell tower) service. The request by the MS is appropriately correlated (e.g. as described above) for a response, which additionally facilitates embodiments using TDOA measurements (time of communications between the MS and antenna, or cell tower) to determine how close is the MS in range. Block 254 waits for a response, or waits until a reasonable timeout, whichever occurs first. There are also multithreaded embodiments to breaking up FIG. 2E where block 254 does not wait, but rather terminates FIG. 2E processing and depends on another thread to correlate the response and then continue processing blocks 256 through 260 (like architecture 1900).
Thereafter, if block 256 determines the request timed out, then processing terminates at block 264. If block 256 determines the response was received, then processing continues to block 258. Block 258 completes a WDR 1100 with appropriate response data received along with data set by the MS. See FIG. 11A descriptions. Fields are set to the following upon exit from block 258:
MS ID field 1100a is preferably set with: Same as was described for FIG. 2D (block 236) above.
DATE/TIME STAMP field 1100b is preferably set with: Same as was described for FIG. 2D (block 236) above.
LOCATION field 1100c is preferably set with: Same as was described for FIG. 2D (block 236) above.
CONFIDENCE field 1100d is preferably set with: Same as was described for FIG. 2D (block 236) above.
LOCATION TECHNOLOGY field 1100e is preferably set with: “Client Antenna Range” for an antenna detecting the MS, and is set to “Client Cell Range” for a cell tower detecting the MS. The originator indicator is set to DLM.
LOCATION REFERENCE INFO field 1100f is preferably set with: Same as was described for FIG. 2D (block 236) above.
COMMUNICATIONS REFERENCE INFO field 1100g is preferably set with: Same as was described for FIG. 2D (block 236) above.
SPEED field 1100h is preferably set with: Same as was described for FIG. 2D (block 236) above.
HEADING field 1100i is preferably set with: Same as was described for FIG. 2D (block 236) above.
ELEVATION field 1100j is preferably set with: Same as was described for FIG. 2D (block 236) above.
APPLICATION FIELDS field 1100k is preferably set with: Same as was described for FIG. 2D (block 236) above.
CORRELATION FIELD 1100m is preferably set with: Not Applicable (i.e. not maintained to queue 22).
SENT DATE/TIME STAMP field 1100n is preferably set with: Not Applicable (i.e. not maintained to queue 22).
RECEIVED DATE/TIME STAMP field 1100p is preferably set with: Not Applicable (i.e. not maintained to queue 22).
The longer time it takes between sending a request and getting a response at block 254, the less confidence there is for being located because the MS must be a larger distance from the antenna or cell tower. The less time it takes, the more confidence there is for being located because the MS must be a closer distance to the antenna or cell tower. Confidence values are analogously determined as described for FIG. 2D. FIG. 2D NTP embodiments also apply here. NTP can be used so no bidirectional communications is required for TDOA measurement. In this embodiment, the antenna (or cell tower) sets a NTP date/time stamp in the pulse, beacon, or protocol. Upon receipt, the MS instantly knows how long the packet took to be received by comparing the NTP date/time stamp in the packet and a MS NTP date/time stamp of when it was received (i.e. no request/response pair required). If location information is also present with the NTP date/time stamp in data received at block 252, then block 252 can continue directly to block 258.
An alternate MS embodiment determines its own (direction) heading and/or speed for WDR completion based on historical records maintained to the WDR queue 22 and/or LBX history 30.
Block 258 continues to block 260 for preparing parameters for: WDRREF=a reference or pointer to the WDR; DELETEQ=FIG. 2E location queue discard processing; and SUPER=FIG. 2E supervisory notification processing. Thereafter, block 262 invokes the procedure (FIG. 2F processing) to insert the WDR to queue 22. After FIG. 2F processing of block 262, FIG. 2E processing terminates at block 264.
In alternative “coming within range” (same as “in range”, “in-range”, “within range”) embodiments, a unique MS identifier, or MS group identifier, for authenticating an MS for locating the MS is not necessary. An antenna emitting signals (FIG. 13C) will broadcast (in CK 1314 of data 1312) not only its own location information (e.g. location field 1100c), but also an NTP indicated date/time stamp field 1100b, which the receiving MS (also having NTP for time synchronization) uses to perform a TDOA measurement upon receipt. This will enable a MS to determine at least how close (e.g. radius 1318 range, radius 1320 range, radius 1322 range, or radius 1316 range) it is located to the location of the antenna by listening for and receiving the broadcast (e.g. of FIG. 13C). Similarly, in another embodiment, an NTP synchronized MS emits signals (FIG. 13A) and an NTP synchronized data processing system associated with a receiving antenna can make a TDOA measurement upon signal receipt. In other embodiments, more than a single unidirectional signal may be used while still preventing the requirement to recognize the MS to locate it. For example, an antenna emitting signals (e.g. FIG. 13C hotspot WiFi 802.x) will contain enough information for a MS to respond with correlation for being located, and visa-versa. In any case, there can be multi-directional exchanged signals for determining a TDOA measurement.
FIG. 3A depicts a locating by triangulation illustration for discussing automatic location of a MS, for example DLM 200. DLM 200 is located through triangulation, as is well known in the art. At least three base towers, for example, base tower 108b, base tower 108d, and base tower 108f, are used for locating the MS. A fourth base tower may be used if elevation (or altitude) was configured for use in locating DLM 200. There are cases where only two base towers are necessary given routes of travel are limited and known, for example, in spread out roadways or limited configured locations. Base towers may also be antennas 108b, 108d, and 108f in similar triangulation embodiments.
FIG. 3B depicts a flowchart for describing a preferred embodiment of the whereabouts update event of a triangulated MS, for example DLM 200, when MS location awareness is monitored by some remote service. While FIG. 3A location determination with TDOA and AOA is well known in the art, FIGS. 3B and 3C include relevant processing for MSs to maintain their own whereabouts. Processing begins at block 310 and continues to block 312 where base stations able to communicate to any degree with a MS continue reporting to their controller the MS signal strength with an MS identifier (i.e. a unique handle) and Time Difference of Arrival (TDOA) information, Angle of Arrival (AOA) information, or heterogeneously both TDOA and AOA (i.e. MPT), depending on the embodiment. The MS can pick signals from base stations. In some embodiments, the MS monitors a paging channel, called a forward channel. There can be multiple forward channels. A forward channel is the transmission frequency from the base tower to the MS. Either the MS provides broadcast heartbeats (FIG. 13A) for base stations, or the base stations provide heartbeats (FIG. 13C) for a response from the MS, or usual MS use protocol signals are detected and used (incorporating CK 1304 in usual data 1302 by MS, or CK 1314 in “usual data” 1312 by service). Usual data is the usual communications traffic data in carrying out other character 32 processing. Communication from the MS to the base tower is on what is called the reverse channel. Forward channels and reverse channel are used to perform call setup for a created session channel.
TDOA is calculated from the time it takes for a communication to occur from the MS back to the MS via the base tower, or alternatively, from a base tower back to that base tower via the MS. NTP may also be used for time calculations in a unidirectional broadcast from a base tower (FIG. 13C) to the MS, or from the MS (FIG. 13A) to a base tower (as described above). AOA is performed through calculations of the angle by which a signal from the MS encounters the antenna. Triangle geometry is then used to calculate a location. The AOA antenna is typically of a phased array type.
See “Missing Part Triangulation (MPT)” section below with discussions for FIGS. 11A through 11E for details on heterogeneously locating the MS using both TDOA and AOA (i.e. Missing Part Triangulation (MPT)). Just as high school taught geometry for solving missing parts of a triangle, so to does MPT triangulate an MS location. Think of the length of a side of a triangle as a TDOA measurement—i.e. length of time, translatable to a distance. Think of the AOA of a signal to an antenna as one of the angles of a triangle vertice. Solving with MPT analogously uses geometric and trigonometric formulas to solve the triangulation, albeit at fast processing speeds.
Thereafter, if the MS is determined to be legitimate and deserving of processing (similar to above), then block 314 continues to block 316. If block 314 determines the MS is not participating with the service, in which case block 312 did little to process it, then processing continues back to block 312 to continue working on behalf of legitimate participating MSs. The controller at block 316 may communicate with other controllers when base stations in other cellular clusters are picking up a signal, for example, when the MS roams. In any case, at block 316, the controller(s) determines the strongest signal base stations needed for locating the MS, at block 316. The strongest signals that can accomplish whereabouts information of the MS are used. Thereafter, block 318 accesses base station location information for base stations determined at block 316. The base station provides stationary references used to (relatively) determine the location of the MS. Then, block 320 uses the TDOA, or AOA, or MPT (i.e. heterogeneously both AOA and TDOA) information together with known base station locations to calculate the MS location.
Thereafter, block 322 accesses historical MS location information, and block 324 performs housekeeping by pruning location history data for the MS by time, number of entries, or other criteria. Block 326 then determines a heading (direction) of the MS based on previous location information. Block 326 may perform Artificial Intelligence (AI) to determine where the MS may be going by consulting many or all of the location history data. Thereafter, block 328 completes a service side WDR 1100, block 330 appends the WDR information to location history data and notifies a supervisory service if there is one outside of the service processing of FIG. 3B. Processing continues to block 332 where the service communicates the WDR to the located MS.
Thereafter, the MS completes its own WDR at block 334 for adding to WDR queue 22 to know its own whereabouts whenever possible, and block 336 prepares parameters for invoking WDR insertion processing at block 338. Parameters are set for: WDRREF=a reference or pointer to the MS WDR; DELETEQ=FIG. 3B location queue discard processing; and SUPER=FIG. 3B supervisory notification processing (e.g. no supervisory notification processing because it was already handled at block 330, or by being in context of the FIG. 3B service processing). At block 338, the MS invokes FIG. 2F processing already described. After block 338, processing continues back to block 312. Of course, block 332 continues directly to block 312 at the service(s) since there is no need to wait for MS(s) processing in blocks 334 through 338. FIG. 3B processing is continuous for every MS in the wireless network 7 days a week, 24 hours a day.
See FIG. 11A descriptions. Fields are set to the following upon exit from block 334:
MS ID field 1100a is preferably set with: Same as was described for FIG. 2D (block 236) above.
DATE/TIME STAMP field 1100b is preferably set with: Same as was described for FIG. 2D (block 236) above.
LOCATION field 1100c is preferably set with: The triangulated location of the MS as communicated by the service.
CONFIDENCE field 1100d is preferably set with: Confidence of triangulation determined by the service which is passed to the MS at block 332. The confidence value may be set with the same value (e.g. 85) regardless of how the MS was triangulated. In other embodiments, field 1100d will be determined (completely, or adjusting the value of 85) by the service for TDOA measurements used, AOA measurements, signal strengths, wave spectrum involved, and/or the abundance of particular MS signals available for processing by blocks 312 through 320. Higher confidences are assigned for smaller TDOA measurements (shorter distances), strong signal strengths, and numerous additional data points beyond what is necessary to locate the MS. Lower confidences are assigned for larger TDOA measurements, weak signal strengths, and minimal data points necessary to locate the MS. A reasonable confidence can be assigned using this information as guidelines where 1 is the lowest confidence and 100 is the highest confidence.

LOCATION TECHNOLOGY field 1100e is preferably set with: “Server Cell TDOA”, “Server Cell AOA”, “Server Cell MPT”, “Server Antenna TDOA”, “Server Antenna AOA”, or “Server Antenna MPT”, depending on how the MS was located and what flavor of service was used. The originator indicator is set to DLM.

LOCATION REFERENCE INFO field 1100f is preferably set with: null (not set) for indicating that all triangulation data was factored into determining confidence, and none is relevant for a single TDOA or AOA measurement in subsequent processing (i.e. service did all the work).

COMMUNICATIONS REFERENCE INFO field 1100g is preferably set with: Same as was described for FIG. 2D (block 236) above.

SPEED field 1100h is preferably set with: Service WDR information at block 332, wherein the service used historical information and artificial intelligence interrogation of MS travels to determine, if available.

HEADING field 1100i is preferably set with: Service WDR information at block 332, wherein the service used historical information and artificial intelligence interrogation of MS travels to determine, if available.

ELEVATION field 1100j is preferably set with: Elevation/altitude, if available.

APPLICATION FIELDS field 1100k is preferably set with: Same as was described for FIG. 2D (block 236) above.

CORRELATION FIELD 1100m is preferably set with: Not Applicable (i.e. not maintained to queue 22).

SENT DATE/TIME STAMP field 1100n is preferably set with: Not Applicable (i.e. not maintained to queue 22).

RECEIVED DATE/TIME STAMP field 1100p is preferably set with: Not Applicable (i.e. not maintained to queue 22).

FIG. 3C depicts a flowchart for describing a preferred embodiment of the whereabouts update event of a triangulated MS, for example a DLM 200, when MS location awareness is monitored by the MS. Communications between the base stations and MS is similar to FIG. 3B processing except the MS receives information (FIG. 13C) for performing calculations and related processing. Processing begins at block 350 and continues to block 352 where the MS continues receiving (FIG. 13C) pulse reporting from base stations (or antennas). AOA, TDOA, and MPT (See “Missing Part Triangulation (MPT)” section below with discussions for FIGS. 11A through 11E for details on heterogeneously locating the MS using both TDOA and AOA) can be used to locate the MS, so there are many possible signal types received at block 352. Then, block 354 determines the strongest signals which can accomplish a completed WDR, or at least a location, of the MS. Thereafter, block 356 parses base station location information from the pulse messages that are received by the MS. Block 358 communicates with base stations to perform TDOA and/or AOA measurements and calculations. The time it takes for a communication to occur from the MS back to the MS for TDOA, or alternatively, from a base tower back to that base tower can be used. NTP may also be used, as described above, so that base towers (or antennas) broadcast signals (FIG. 13C) picked up by the MS which already contain the base tower locations and NTP date/time stamps for TDOA calculations. Block 358 uses the TDOA and/or AOA information with the known base station information to determine the MS location. While AOA information from the base stations (or antennas) is used by the MS, various MS embodiments can use AOA information detected at an MS antenna provided the heading, yaw, pitch, and roll is known at the MS during the same time as signal reception by the MS. A 3-axis accelerometer (e.g. in iPhone) may also provide yaw, pitch and roll means for proper AOA calculation.
Thereafter, block 360 accesses historical MS location information (e.g. WDR queue 22 and/or LBX history 30) to prevent redundant information kept at the MS, and block 362 performs housekeeping by pruning the LBX history 30 for the MS by time, number of entries, or other criteria. Block 364 then determines a heading (direction) of the MS based on previous location information (unless already known from block 358 for AOA determination). Block 364 may perform Artificial Intelligence (AI) to determine where the MS may be going by consulting queue 22 and/or history 30. Thereafter, block 366 completes a WDR 1100, and block 368 prepares parameters for FIG. 2F processing: WDRREF=a reference or pointer to the MS WDR; DELETEQ=FIG. 3C location queue discard processing; and SUPER=FIG. 3B supervisory notification processing. Block 368 continues to block 370 for invoking FIG. 2F processing already described above. After block 370, processing continues back to block 352. FIG. 3C processing is continuous for the MS as long as the MS is enabled. In various multithreaded embodiments, many threads at the MS work together for high speed processing at blocks 352 through 358 for concurrently communicating to many stationary references.
See FIG. 11A descriptions. Fields are set to the following upon exit from block 366:
MS ID field 1100a is preferably set with: Same as was described for FIG. 2D (block 236) above.
DATE/TIME STAMP field 1100b is preferably set with: Same as was described for FIG. 2D (block 236) above.
LOCATION field 1100c is preferably set with: The triangulated location of the MS as determined by the MS.
CONFIDENCE field 1100d is preferably set with: The confidence of triangulation as determined by the MS. Confidence may be set with the same value (e.g. 80 since MS may be moving during triangulation) regardless of how the MS was triangulated. In other embodiments, field 1100d will be determined (completely, or adjusting the value of 80) by the MS for TDOA measurements used, AOA measurements, signal strengths, wave spectrum involved, and/or the abundance of particular service signals available for processing. Higher confidences are assigned for smaller TDOA measurements (shorter distances), strong signal strengths, and numerous additional data points beyond what is necessary to locate the MS. Lower confidences are assigned for larger TDOA measurements, weak signal strengths, and minimal data points necessary to locate the MS. A reasonable confidence can be assigned using this information as guidelines where 1 is the lowest confidence and 100 is the highest confidence.

LOCATION TECHNOLOGY field 1100e is preferably set with: “Client Cell TDOA”, “Client Cell AOA”, “Client Cell MPT”, “Client Antenna TDOA”, “Client Antenna AOA”, or “Client Antenna MPT”, depending on how the MS located itself. The originator indicator is set to DLM.

LOCATION REFERENCE INFO field 1100f is preferably set with: Data associated with selected best stationary reference(s) used by the MS: the selection location/whereabouts, TDOA measurement to it, and wave spectrum (and/or particular communications interface 70) used, if reasonable. The TDOA measurement may be converted to a distance using wave spectrum information. Also, preferably set herein is data associated with a selected best stationary reference used by the MS (may be same or different than for TDOA measurement): the selection location, AOA measurement to it, and heading, yaw, pitch, and roll values (or accelerometer readings), if reasonable. Values that may be populated here should have already been factored into the confidence value. There may be one or more stationary reference whereabouts with useful measurements maintained here for FIG. 26B processing of block 2652.

COMMUNICATIONS REFERENCE INFO field 1100g is preferably set with: Parameters referencing MS internals, if desired.

SPEED field 1100h is preferably set with: Speed determined by the MS using historical information (queue 22 and/or history 30) and artificial intelligence interrogation of MS travels to determine, if reasonable.

HEADING field 1100i is preferably set with: Heading determined by the MS using historical information (queue 22 and/or history 30) and artificial intelligence interrogation of MS travels to determine, if reasonable.

ELEVATION field 1100j is preferably set with: Elevation/altitude, if available.

APPLICATION FIELDS field 1100k is preferably set with: Same as was described for FIG. 2D (block 236) above.

CORRELATION FIELD 1100m is preferably set with: Not Applicable (i.e. not maintained to queue 22).

SENT DATE/TIME STAMP field 1100n is preferably set with: Not Applicable (i.e. not maintained to queue 22).

RECEIVED DATE/TIME STAMP field 1100p is preferably set with: Not Applicable (i.e. not maintained to queue 22).

In alternative triangulation embodiments, a unique MS identifier, or MS group identifier, for authenticating an MS for locating the MS is not necessary. An antenna emitting signals (FIG. 13C) will broadcast (CK 1314 of data 1312) not only its own location information, but also an NTP date/time stamp, which the receiving MS (also having NTP for time synchronization) uses to perform TDOA measurements upon receipt. This will enable a MS to determine how close (e.g. radius 1318 range, radius 1320 range, radius 1322 range, or radius 1316 range) it is located to the location of the antenna by listening for and receiving the broadcast (e.g. of FIG. 13C). Similarly, in another embodiment, an NTP synchronized MS emits signals (FIG. 13A) and an NTP synchronized data processing system associated with a receiving antenna can determine a TDOA measurement upon signal receipt. In other embodiments, more than a single unidirectional signal may be used while still preventing the requirement to recognize the MS to locate it. For example, an antenna emitting signals will contain enough information for a MS to respond with correlation for being located. Alternatively, an MS emitting signals will contain enough information for a service to respond with correlation for being located. In any case, there can be multi-directional exchanged signals for determining TDOA. Similarly, a service side data processing system can interact with a MS for AOA information without requiring a known identifier of the MS (use request/response correlation).
FIG. 4A depicts a locating by GPS triangulation illustration for discussing automatic location of a MS, for example a DLM 200. A MS, for example DLM 200, is located through GPS triangulation as is well known in the art. At least three satellites, for example, satellite 134, satellite 136, and satellite 138, are necessary for locating the MS. A fourth satellite would be used if elevation, or altitude, was configured for use by the present disclosure. Ground based stationary references can further enhance whereabouts determination.
FIG. 4B depicts a flowchart for describing a preferred embodiment of the whereabouts update event of a GPS triangulated MS, for example a DLM 200. Repeated continuous GPS location processing begins at block 410 and continues to block 412 where the MS initializes to the GPS interface, then to block 414 for performing the conventional locating of the GPS enabled MS, and then to block 416 for calculating location information. In some embodiments, block 412 may only be necessary a first time prior to repeated invocations of FIG. 4B processing. Block 414 may be an implicit wait for pulses from satellites, or an event driven mechanism when GPS satellite pulses are received for synchronized collection, or a multithreaded implementation concurrently listening for, and processing collaboratively, the signals. Block 414 and block 416 processing is well known in the art. Thereafter, the MS completes a WDR 1100 at block 418, block 420 prepares parameters for FIG. 2F invocation, and block 422 invokes, with the WDR, the FIG. 2F processing (described above). Processing then terminates at block 424. Parameters prepared at block 420 are: WDRREF=a reference or pointer to the WDR; DELETEQ=FIG. 4B location queue discard processing; and SUPER=FIG. 4B supervisory notification processing. GPS location processing is preferably continuous for the MS as long as the MS is enabled.
See FIG. 11A descriptions. Fields are set to the following upon exit from block 418:
MS ID field 1100a is preferably set with: Same as was described for FIG. 2D (block 236) above.
DATE/TIME STAMP field 1100b is preferably set with: Same as was described for FIG. 2D (block 236) above.
LOCATION field 1100c is preferably set with: The GPS location of the MS.
CONFIDENCE field 1100d is preferably set with: Confidence of GPS variety (usually high) which may be set with the same value (e.g. 95 for DGPS, 93 for AGPS, and 90 for GPS). In other embodiments, field 1100d will be determined (completely, or amending the defaulted value) by the MS for timing measurements, signal strengths, and/or the abundance of particular signals available for processing, similarly to as described above. An MS may not be aware of the variety of GPS, in which case straight GPS is assumed.

LOCATION TECHNOLOGY field 1100e is preferably set with: “GPS”, “A-GPS”, or “D-GPS”, depending on (if known) flavor of GPS. The originator indicator is set to DLM.

LOCATION REFERENCE INFO field 1100f is preferably set with: null (not set) for indicating that data was factored into determining confidence, and none is relevant for a single TDOA or AOA measurement in subsequent processing.

COMMUNICATIONS REFERENCE INFO field 1100g is preferably set with: Parameters referencing MS internals, if desired.

SPEED field 1100h is preferably set with: Speed determined by the MS using a suitable GPS interface, or historical information (queue 22 and/or history 30) and artificial intelligence interrogation of MS travels to determine, if reasonable.

HEADING field 1100i is preferably set with: Heading determined by the MS using a suitable GPS interface, or historical information (queue 22 and/or history 30) and artificial intelligence interrogation of MS travels to determine, if reasonable.

ELEVATION field 1100j is preferably set with: Elevation/altitude, if available.

APPLICATION FIELDS field 1100k is preferably set with: Same as was described for FIG. 2D (block 236) above.

CORRELATION FIELD 1100m is preferably set with: Not Applicable (i.e. not maintained to queue 22).

SENT DATE/TIME STAMP field 1100n is preferably set with: Not Applicable (i.e. not maintained to queue 22).

RECEIVED DATE/TIME STAMP field 1100p is preferably set with: Not Applicable (i.e. not maintained to queue 22).

FIG. 5A depicts a locating by stationary antenna triangulation illustration for discussing automatic location of a MS, for example DLM 200. There may be communication/transmission issues when an MS is taken indoors. Shown is a top view of an indoor floor plan 502. Antenna stations 504 (shown generally as 504) are strategically placed over the area so that an MS can be located. Triangulation techniques again apply. At least three antenna stations, for example, station 504f, station 504h, and station 504i are used to locate the MS, for example DLM 200. In floor plan embodiments where aisles delimit travel, only two antenna stations may be necessary, for example at either end of the particular aisle. While most stations 504 may receive signals from the MS, only the strongest stations are used. FIG. 5A and associated discussions can also be used for an outside triangulation embodiment using a similar strategic antenna placement scheme. Processing described for FIGS. 3A to 3C can also be used for an indoor embodiment as described by FIG. 5A.
FIG. 5B depicts a flowchart for describing a preferred embodiment of the whereabouts update event of a stationary antenna triangulated MS, for example a DLM 200. In one embodiment, indoor location technology of Pinpoint corporation (Pinpoint is a trademark of Pinpoint Corporation) is utilized to locate any MS that moves about the indoor location. The Pinpoint corporation methodology begins at block 510 and continues to block 512. A cell controller drives antenna stations to emit a broadcast signal from every station. Any MS within range (i.e. indoors) will phase modulate its unique identifier onto a return signal it transmits, at block 514. Stations at block 516 receive the transmission and strength of signal. The cell controller that drives stations sorts out and selects the strongest (e.g. 3) signals. The cell controller, at block 518, also extracts the unique MS identifier from the return signal, and TDOA is used to calculate distances from the stations receiving the strongest signals from the MS at block 520. Alternative embodiments can use AOA or MPT to determine locations. The locations of the controller selected stations are registered in an overlay map in an appropriate coordinate system, landmark system, or grid of cells. Block 522 locates the MS using the overlay map, locations of the (e.g. 3) selected stations, and the calculated distances triangulated from the selected stations, using TDOA, AOA, or MPT in various embodiments. Thereafter, block 524 calculates location information of the MS. Processing continues with repeated broadcast at block 512 and subsequent processing for every MS within range.
Thereafter, block 526 accesses historical MS location information, performs housekeeping by pruning location history data for the MS by time, number of entries, or other criteria, and determines a heading (direction) of the MS based on previous location information. Block 526 may perform Artificial Intelligence (AI) to determine where the MS may be going by consulting many or all of the location history data. Thereafter, block 528 completes a service side WDR 1100, block 530 appends the WDR information to location history data and notifies a supervisory service if there is one outside of the service processing of FIG. 5B. Processing continues to block 532 where the service communicates the WDR to the located MS.
Thereafter, the MS completes the WDR at block 534 for adding to WDR queue 22. Thereafter, block 536 prepares parameters passed to FIG. 2F processing for: WDRREF=a reference or pointer to the MS WDR; DELETEQ=FIG. 5B location queue discard processing; and SUPER=FIG. 5B supervisory notification processing (e.g. no supervisory notification processing because it was already handled at block 530, or by being in context of the FIG. 5B service processing). Block 536 continues to block 538 where the MS invokes FIG. 2F processing already described above. After block 538, processing continues back to block 514. Of course, block 532 continues directly to block 514 at the service(s) since there is no need to wait for MS(s) processing in blocks 534 through 538. FIG. 5B processing is continuous for every MS in the wireless network 7 days a week, 24 hours a day.
See FIG. 11A descriptions. Fields are set to the following upon exit from block 534:
MS ID field 1100a is preferably set with: Same as was described for FIG. 2D (block 236) above.
DATE/TIME STAMP field 1100b is preferably set with: Same as was described for FIG. 2D (block 236) above.
LOCATION field 1100c is preferably set with: The triangulated location of the MS as communicated by the service.
CONFIDENCE field 1100d is preferably set with: Confidence of triangulation determined by the service which is passed to the MS at block 532. The confidence value may be set with the same value (e.g. 95 (normally high for triangulation using densely positioned antennas)) regardless of how the MS was triangulated. In other embodiments, field 1100d will be determined (completely, or adjusting the value of 95) by the service for TDOA measurements used, AOA measurements, signal strengths, wave spectrum involved, and/or the abundance of particular MS signals available for processing. Higher confidences are assigned for smaller TDOA measurements (shorter distances), strong signal strengths, and numerous additional data points beyond what is necessary to locate the MS. Lower confidences are assigned for larger TDOA measurements, weak signal strengths, and minimal data points necessary to locate the MS. A reasonable confidence can be assigned using this information as guidelines where 1 is the lowest confidence and 100 is the highest confidence.

LOCATION TECHNOLOGY field 1100e is preferably set with: “Server Antenna TDOA”, “Server Antenna AOA”, or “Server Antenna MPT”, depending on how the MS was located and what flavor of service was used. The originator indicator is set to DLM.

LOCATION REFERENCE INFO field 1100f is preferably set with: null (not set) for indicating that all triangulation data was factored into determining confidence, and none is relevant for a single TDOA or AOA measurement in subsequent processing (i.e. service did all the work).

COMMUNICATIONS REFERENCE INFO field 1100g is preferably set with: Same as was described for FIG. 2D (block 236) above.

SPEED field 1100h is preferably set with: Service WDR information at block 532, wherein the service used historical information and artificial intelligence interrogation of MS travels to determine, if available.

HEADING field 1100i is preferably set with: Service WDR information at block 532, wherein the service used historical information and artificial intelligence interrogation of MS travels to determine, if available.

ELEVATION field 1100j is preferably set with: Elevation/altitude, if available.

APPLICATION FIELDS field 1100k is preferably set with: Same as was described for FIG. 2D (block 236) above.

CORRELATION FIELD 1100m is preferably set with: Not Applicable (i.e. not maintained to queue 22).

SENT DATE/TIME STAMP field 1100n is preferably set with: Not Applicable (i.e. not maintained to queue 22).

RECEIVED DATE/TIME STAMP field 1100p is preferably set with: Not Applicable (i.e. not maintained to queue 22).

FIG. 6A depicts a flowchart for describing a preferred embodiment of a service whereabouts update event of a physically, or logically, connected MS, for example a DLM 200. A MS may be newly located and physically, or logically, connected, whereby communications between the MS and service is over a physical/logical connection. Physical connections may occur by connecting a conduit for communications to the MS, or from the MS to a connection point. Conduits include ethernet cables, optical fiber, firewire, USB, or any other means for conduit for communications through a physical medium. Conduits also include wireless mediums (air) for transporting communications, such as when an MS comes into physical wireless range eligible for sending and receiving communications. Logical connections may occur, after a physical connection already exists, for example through a successful communication, or authenticated, bind between a MS and other MS, or MS and service. Logical connections also include the result of: successfully logging into an application, successfully authenticated for access to some resource, successfully identified by an application, or any other logical status upon a MS being certified, registered, signed in, authenticated, bound, recognized, affirmed, or the like.
Relevant processing begins at block 602 and continues to block 604 where an MS device is physically/logically connected to a network. Thereafter, the MS accesses a service at block 606. Then, at block 608, the service accesses historical MS location history along with the connectivity address, and block 610 performs housekeeping by pruning the location history data maintained for the MS by time, number of entries, or other criteria. Block 610 may perform Artificial Intelligence (AI) to determine where the MS may be going (e.g. using heading based on previous locations) by consulting much or all of the location history data. Thereafter, service processing at block 612 completes a service side WDR 1100, then the service appends WDR information to location history data at block 614, and may notify a supervisory service if there is one outside of the service processing of FIG. 6A. Processing continues to block 616 where the service communicates WDR information to the newly physically/logically connected MS. There are many embodiments for determining a newly connected MS location using a physical or logical address, for example consulting a database which maps locations to network addresses (e.g. location to logical ip address; location to physical wall jack/port; etc). Then, at block 618 the MS completes its own WDR using some information from block 616, FIG. 2F parameters are prepared at block 620, block 622 invokes FIG. 2F processing already described above, and processing terminates at block 624. Parameters are set at block 620 for: WDRREF=a reference or pointer to the MS WDR; DELETEQ=FIG. 6A location queue discard processing; and SUPER=FIG. 6A supervisory notification processing (e.g. no supervisory notification processing because it was already handled at block 614, or by being in context of the FIG. 6A service processing). Of course, block 616 continues directly to block 624 at the service(s) since there is no need to wait for MS processing in blocks 618 through 622. FIG. 6A processing is available at any appropriate time in accordance with the underlying service.
See FIG. 11A descriptions. Fields are set to the following upon exit from block 618:
MS ID field 1100a is preferably set with: Same as was described for FIG. 2D (block 236) above.
DATE/TIME STAMP field 1100b is preferably set with: Same as was described for FIG. 2D (block 236) above.
LOCATION field 1100c is preferably set with: The location of the MS as communicated by the service.
CONFIDENCE field 1100d is preferably set with: Confidence (determined by the service) according to how the MS was connected, or may be set with the same value (e.g. 100 for physical connect, 77 for logical connect (e.g. short range wireless)) regardless of how the MS was located. In other embodiments, field 1100d will be determined by the service for anticipated physical conduit range, wireless logical connect range, etc. The resulting confidence value can be adjusted based on other parameters analogously to as described above.

LOCATION TECHNOLOGY field 1100e is preferably set with “Service Physical Connect” or “Service Logical Connect”, depending on how the MS connected. The originator indicator is set to DLM.

LOCATION REFERENCE INFO field 1100f is preferably set with: null (not set), but if a TDOA measurement can be made (e.g. short range logical connect, and using methodologies described above), then a TDOA measurement, a communications signal strength, if available; and wave spectrum (and/or particular communications interface 70) used, if available. The TDOA measurement may be converted to a distance using wave spectrum information. Possible values populated here should have already been factored into the confidence value.

COMMUNICATIONS REFERENCE INFO field 1100g is preferably set with: Same as was described for FIG. 2D (block 236) above.

SPEED field 1100h is preferably set with: null (not set), but can be set with speed required to arrive to the current location from a previously known location, assuming same time scale is used.

HEADING field 1100i is preferably set with: null (not set), but can be set to heading determined when arriving to the current location from a previously known location.

ELEVATION field 1100j is preferably set with: Elevation/altitude (e.g. of physical connection, or place of logical connection detection), if available.

APPLICATION FIELDS field 1100k is preferably set with: Same as was described for FIG. 2D (block 236) above.

CORRELATION FIELD 1100m is preferably set with: Not Applicable (i.e. not maintained to queue 22).

SENT DATE/TIME STAMP field 1100n is preferably set with: Not Applicable (i.e. not maintained to queue 22).

RECEIVED DATE/TIME STAMP field 1100p is preferably set with: Not Applicable (i.e. not maintained to queue 22).

FIG. 6B depicts a flowchart for describing a preferred embodiment of a MS whereabouts update event of a physically, or logically, connected MS, for example a DLM 200. A MS may be newly located and physically/logically connected, whereby communications between the MS and service is over a physical/logical connection as described in FIG. 6A above. Relevant processing begins at block 640 and continues to block 642 where an MS device is physically/logically connected. Thereafter, at block 644 the MS accesses the connectivity service and waits for an acknowledgement indicating a successful connection. Upon acknowledgement receipt, processing continues to block 646 where the MS requests WDR information via the connectivity service and waits for the data (i.e. connectivity service may be different than the location service, or may be one in the same). As part of connectivity, location service pointer(s) (e.g. ip address for http://112.34.323 18 referencing or a Domain Name Service (DNS) name like http://www.servicename.com) are provided with the connectivity acknowledgement from the connectivity service at block 644, so the MS knows how to proceed at block 646 for retrieving location information. There are various embodiments for the location service determining a MS location as described above for FIG. 6A. In an alternative embodiment, the MS already knows how to locate itself wherein block 644 continues directly to block 648 (no block 646) because the MS maintains information for determining its own whereabouts using the physical or logical address received in the acknowledgement at block 644. Similar mapping of a network address to the MS location can be in MS data, for example data 36, data 8, or data 20. At block 648, the MS completes its WDR 1100. Thereafter, block 650 prepares FIG. 2F parameters, block 652 invokes FIG. 2F processing already described above, and processing terminates at block 654. Parameters set at block 650 are: WDRREF=a reference or pointer to the MS WDR; DELETEQ=FIG. 6B location queue discard processing; and SUPER=FIG. 6B supervisory notification processing. FIG. 6B processing is available at any appropriate time to the MS.
See FIG. 11A descriptions. Fields are set to the following upon exit from block 648:
MS ID field 1100a is preferably set with: Same as was described for FIG. 2D (block 236) above.
DATE/TIME STAMP field 1100b is preferably set with: Same as was described for FIG. 2D (block 236) above.
LOCATION field 1100c is preferably set with: The location determined for the MS.
CONFIDENCE field 1100d is preferably set with: Confidence (determined by the service) according to how the MS was connected, or may be set with the same value (e.g. 100 for physical connect, 77 for logical connect (e.g. short range wireless)) regardless of how the MS was located. In other embodiments, field 1100d will be determined by the service for anticipated physical conduit range, wireless logical connect range, etc. The resulting confidence value can be adjusted based on other parameters analogously to as described above.

LOCATION TECHNOLOGY field 1100e is preferably set with “Client Physical Connect” or “Client Logical Connect”, depending on how the MS connected. The originator indicator is set to DLM.

LOCATION REFERENCE INFO field 1100f is preferably set with: null (not set), but if a TDOA measurement can be made (e.g. short range logical connect, and using methodologies described above), then a TDOA measurement, a communications signal strength, if available; and wave spectrum (and/or particular communications interface 70) used, if available. The TDOA measurement may be converted to a distance using wave spectrum information. Possible values populated here should have already been factored into the confidence value.

COMMUNICATIONS REFERENCE INFO field 1100g is preferably set with: Same as was described for FIG. 2D (block 236) above.

SPEED field 1100h is preferably set with: null (not set), but can be set with speed required to arrive to the current location from a previously known location using, assuming same time scale is used.

HEADING field 1100i is preferably set with: null (not set), but can be set to heading determined when arriving to the current location from a previously known location.

ELEVATION field 1100j is preferably set with: Elevation/altitude (e.g. of physical connection, or place of logical connection detection), if available.

APPLICATION FIELDS field 1100k is preferably set with: Same as was described for FIG. 2D (block 236) above.

CORRELATION FIELD 1100m is preferably set with: Not Applicable (i.e. not maintained to queue 22).

SENT DATE/TIME STAMP field 1100n is preferably set with: Not Applicable (i.e. not maintained to queue 22).

RECEIVED DATE/TIME STAMP field 1100p is preferably set with: Not Applicable (i.e. not maintained to queue 22).

FIGS. 7A, 7B and 7C depict a locating by image sensory illustration for discussing automatic location of a MS, for example a DLM 200. With reference now to FIG. 7A, an image capture device 702 is positioned for monitoring MSs that come into the field of view 704 of device 702. Device 702 may be a camcorder, video camera, image camera that takes at least one snapshot, timely snapshots, or motion/presence detection snapshots, or any other device capable of producing at least a snapshot image at some point in time containing objects in the field of view 704. In one preferred embodiment, DLM 200 is sensed within the vicinity of device 702, perhaps by antenna (or cell tower) 701, prior to being photographed by device 702. In another embodiment, DLM 200 is sensed by movement within the vicinity of device 702 with well know motion detection means. In yet another embodiment, device 702 periodically or continually records. Device 702 is connected to a locating service 700 for processing as described by FIG. 7D. Locating service 700 has means for communicating wirelessly to DLM 200, for example through a connected antenna (or cell tower) 701. FIG. 7A illustrates that device 702 participates in pattern recognition for identifying the location of a MS. The MS can have on its exterior a string of characters, serial number, barcode, license plate, graphic symbol(s), textual symbols, combinations thereof, or any other visually perceptible, or graphical, identification 708 that can be recognized optically, or in a photograph. Device 702 is to have graphical/pixel resolution capability matching the requirements for identifying a MS with the sought graphical identification. Graphical identification 708 can be formed on the perceptible exterior of DLM 200, or can be formed as part of a housing/apparatus 706 which hosts DLM 200. Graphical identification 708 can be automatically read from an image using well known barcode reader technology, an Optical Character Recognition (OCR) process, a license tag scanner, general pattern recognition software, or the like. Housing 706 is generally shown for representing an automobile (license plate recognition, for example used in prior art toll tag lanes), a shopping cart, a package, or any other hosting article of manufacture which has a DLM 200 as part of it. Upon recognition, DLM 200 is associated with the location of device 702. Error in locating an MS will depend on the distance within the field of view 704 from device 702. A distance may be estimated based on the anticipated size of identification 708, relative its size determined within the field of view 704.
With reference now to FIG. 7B, image capture device 702 is positioned for monitoring MSs that come into the field of view 704 of device 702. MSs are preferably distinguishable by appearance (e.g. color, shape, markings, labels, tags, etc), or as attached (e.g. recognized mount to host) or carried (e.g. recognized by its recognized user). Such techniques are well known to those skilled in the art. Device 702 is as described above with connectivity to locating service 700 and antenna (or cell tower) 701. FIG. 7B illustrates that device 702 uses known measurements within its field of view for determining how large, and where located, are objects that come into the field of view 704. For example, a well placed and recognizable vertical line 710a and horizontal line 710b, which are preferably perpendicular to each other, have known lengths and positions. The objects which come into the field of view are measured based on the known lengths and positions of the lines 710a and 710b which may be landscape markings (e.g. parking lot lines) for additional purpose. Field of view 704 may contain many lines and/or objects of known dimensions strategically placed or recognized within the field of view 704 to facilitate image processing by service 700. Building 714 may serve as a reference point having known dimension and position in measuring objects such as a person 716 or DLM 200. A moving object such as a shopping cart 712 can have known dimensions, but not a specific position, to facilitate service 700 in locating an MS coming into the field of view 704. Those skilled in the art recognize that known dimensions and/or locations of anticipated objects in field of view 704 have measurements facilitating discovering positions and measurements of new objects that may travel into the field of view 704. Using FIG. 7B techniques with FIG. 7A techniques provides additional locating accuracy. A distance may be estimated based on the anticipated sizes of references in the field of view, relative size of the recognized MS.
With reference now to FIG. 7C, image capture device 702 is positioned for monitoring MSs that come into the field of view 704 of device 702. Device 702 is as described above with connectivity to locating service 700 and antenna (or cell tower) 701. MSs are preferably distinguishable by appearance (e.g. color, shape, markings, labels, tags, etc), or as attached (e.g. recognized mount to host) or carried (e.g. recognized by its user), or as identified by FIG. 7A and/or FIG. 7B methodologies. FIG. 7C illustrates that device 702 uses known locations within its field of view for determining how large, and where located, are objects that come into the field of view 704. For example, building 714, tree 720, and traffic sign 722 have its locations known in field of view 704 by service 700. Solving locations of objects that move into the field of view is accomplished with graphical triangulation measurements between known object reference locations (e.g. building 714, tree 720, and sign 722) and the object to be located. Timely snapshots by device 702 provide an ongoing locating of an MS, for example DLM 200. Line segment distances 724 (a, b, c) can be measured using references such as those of FIG. 7B. Whereabouts are determined by providing known coordinates to anticipated objects such as building 714, tree 720, and sign 722. Similarly, graphical AOA measurements (i.e. graphical angle measurements) and graphical MPT measurements can be used in relation to anticipated locations of objects within the field of view 704. There may be many anticipated (known) object locations within field of view 704 to further facilitate locating an MS. Being nearby an object may also be enough to locate the MS by using the object's location for the location of the MS. Using FIG. 7C techniques with FIG. 7A and/or FIG. 7B techniques provides additional locating accuracy.
The system and methodologies illustrated by FIGS. 7A through 7C are preferably used in optimal combination by locating service 700 to provide a best location of an MS. In some embodiments, MS whereabouts is determined as the location of a device 702 by simply being recognized by the device 702. In other embodiments, multiple devices 702 can be strategically placed within a geographic area for being used in combination to a common locating service 700 for providing a most accurate whereabouts of an MS. Multiple field of views 704 from difference angles of different devices 702 enable more precise locating within three dimensional space, including precise elevations.
FIG. 7D depicts a flowchart for describing a preferred embodiment of graphically locating a MS in accordance with locating service 700 described above, for example as illustrated by FIGS. 7A through 7C. Locating service 700 may be a single capable data processing system, or many connected data processing systems for enhanced parallel processing. Locating service 700 may be connected to services involved with any other locating technology described in this application for synergistic services as an MS is mobile. Locating service 700 begins at block 732 and continues to block 734 where the service 700 is initialized in preparation of MS whereabouts analysis. Block 734 initializes its table(s) of sought identifying criteria which can be pattern recognized. In one preferred embodiment, color/shade, shape, appearance and applicable sought information is initialized for each sought identifying criteria. Pattern recognition is well known in the art and initialization is specific for each technology discussed above for FIGS. 7A through 7C. For FIGS. 7B and 7C discussions, positions, measurements, and reference points of known landmarks are additionally accounted. Thereafter, block 736 gets the next snapshot from device(s) 702. If there is none waiting to get, block 736 waits for one. If there is one queued up for processing, then block 736 continues to block 738. FIG. 7D is processing of a service, and is preferably multi-threaded. For example, blocks 736 through 754 can occur concurrently in many threads for processing a common queue of snapshots received from a device 702, or many devices 702. Each thread may process all sought criteria, or may specialize in a subset of sought criteria wherein if nothing is found, the thread can place the snapshot back on a queue for thread processing for another sought criteria after marking the queue entry as having been processed for one particular subset. So, threads may be specialized and work together in seeking all criteria, or may each work in parallel seeking the same criteria. In preferred embodiments, there is at least one queue of snapshots received by block(s) 736. Block 736 continues to block 738 which attempts to detect an MS having sought criteria using pattern recognition techniques of FIGS. 7A through 7C, in particular, or in combination. In one example embodiment, as device 702 provides service 700 with at least one timely snapshot to block 736, the snapshot graphic is scanned at block 738 for identifying characters/symbols/appearance of sought criteria. Block 738 continues with its search result to block 740. If block 740 determines no MS was detected, then processing continues back to block 736. If block 738 detected at least one MS (as determined at block 740), then block 742 calculates WDR information for the MS(s) detected, block 744 notifies a supervisory service of MS whereabouts if applicable, block 746 communicates the WDR information to MS(s) detected (for example via antenna 701), and processing continues to block 748.
There may be a plurality of MSs in the field of view, so communications at block 746 targets each MS recognized. A MS should not rely on the service to have done its job correctly. At a MS, block 748 checks the MS ID communicated for validation. If block 748 determines the MS ID is incorrect, then processing continues back to block 736 (for the particular MS). If block 748 determines the MS ID is correct, then processing continues to block 750 where the particular MS completes its WDR 1100 received from service 700. Thereafter, MS(s) prepare parameters at block 752, invoke local FIG. 2F processing already described above (at block 754), and processing continues for service 700 back to block 736. Of course, block 746 continues directly to block 736 at the service(s) since there is no need to wait for MS(s) processing in blocks 748 through 754. Parameters set at block 752 are: WDRREF=a reference or pointer to the MS WDR; DELETEQ=FIG. 7D location queue discard processing; and SUPER=FIG. 7D supervisory notification (e.g. no supervisory notification processing because it was already handled at block 744, or by being in context of the FIG. 7D service processing). No snapshots from device 702 are to be missed at block 736.
See FIG. 11A descriptions. Fields are set to the following upon exit from block 750:
MS ID field 1100a is preferably set with: Unique MS identifier of the MS, after validating at the MS that the service 700 has correctly identified it. This field is used to uniquely distinguish this MS WDRs on queue 22 from other originated WDRs. The service 700 may determine a MS ID from a database lookup using above appearance criteria. Field 1100a may also be determined using the transmission methods as described for FIGS. 2A through 2E, for example by way of antenna 701. For example, when the MS comes within range of antenna 701, FIG. 7D processing commences. Another embodiment prevents recognizing more than one MS within the field of view 704 at any time (e.g. a single file entryway), in which case the service can solicit a “who are you” transmission to identify the MS and then send back its whereabouts (in which case the MS sets its own MS ID here).

DATE/TIME STAMP field 1100b is preferably set with: Same as was described for FIG. 2D (block 236) above.

LOCATION field 1100c is preferably set with: The location determined for the MS by the service.

CONFIDENCE field 1100d is preferably set with: same value (e.g. 76) regardless of how the MS location was determined. In other embodiments, field 1100d will be determined by the number of distance measurements and/or the abundance of particular objects used in the field of view 704. The resulting confidence value can be adjusted based on other graphical parameters involved, analogously to as described above.

LOCATION TECHNOLOGY field 1100e is preferably set with: “Server Graphic-Patterns” “Server Graphic-Distances”, “Server Graphic Triangulate”, or a combination field value depending on how the MS was located and what flavor of service was used. The originator indicator is set to DLM.

LOCATION REFERENCE INFO field 1100f is preferably set with: null (not set) for indicating that all whereabouts determination data was factored into the confidence, and none is relevant for a single TDOA or AOA measurement in subsequent processing (i.e. service did all the work).

COMMUNICATIONS REFERENCE INFO field 1100g is preferably set with: Same as was described for FIG. 2D (block 236) above.

SPEED field 1100h is preferably set with: null (not set), but can be set with speed required to arrive to the current location from a previously known time at a location (e.g. using previous snapshots processed), assuming the same time scale is used.

HEADING field 1100i is preferably set with: null (not set), but can be set to heading determined when arriving to the current location from a previously known location (e.g. using previous snapshots processed).

ELEVATION field 1100j is preferably set with: Elevation/altitude, if available, if available.

APPLICATION FIELDS field 1100k is preferably set with: Same as was described for FIG. 2D (block 236) above.

CORRELATION FIELD 1100m is preferably set with: Not Applicable (i.e. not maintained to queue 22).

SENT DATE/TIME STAMP field 1100n is preferably set with: Not Applicable (i.e. not maintained to queue 22).

RECEIVED DATE/TIME STAMP field 1100p is preferably set with: Not Applicable (i.e. not maintained to queue 22).

In an alternative embodiment, MS 2 may be equipped (e.g. as part of resources 38) with its own device 702 and field of view 704 for graphically identifying recognizable environmental objects or places to determine its own whereabouts. In this embodiment, the MS would have access to anticipated objects, locations and dimensions much the same way described for FIGS. 7A through 7D, either locally maintained or verifiable with a connected service. Upon a successful recognition of an object, place, or other graphically perceptible image which can be mapped to a location, the MS would complete a WDR similarly to above. The MS may recognize addresses, buildings, landmarks, of other pictorial data. Thus, the MS may graphically determine its own location. The MS would then complete a WDR 1100 for FIG. 2F processing exactly as described for FIG. 7D with the exceptions of fields that follow:
MS ID field 1100a is preferably set with: Same as was described for FIG. 2D (block 236) above.
LOCATION field 1100c is preferably set with: The location determined for the MS by the MS.
LOCATION TECHNOLOGY field 1100e is preferably set with: “Client Graphic-Patterns” “Client Graphic-Distances”, “Client Graphic Triangulate”, or a combination field value depending on how the MS located itself. The originator indicator is set to DLM.
COMMUNICATIONS REFERENCE INFO field 1100g is preferably set with: null (not set).
FIG. 8A heterogeneously depicts a locating by arbitrary wave spectrum illustration for discussing automatic location of a MS. In the case of acoustics or sound, prior art has shown that a noise emitting animal or object can be located by triangulating the sound received using TDOA by strategically placed microphones. It is known that by figuring out time delay between a few strategically spaced microphones, one can infer the location of the sound. In a preferred embodiment, an MS, for example DLM 200, emits a pulsed or constant sound (preferably beyond the human hearing range) which can be sensed by microphones 802 though 806. Data is superimposed on the sound wave spectrum with variations in pitch or tone, or data occurs in patterned breaks in sound transmission. Data may contain a unique identifier of the MS so service(s) attached to microphones 802 through 806 can communicate uniquely to an MS. In some embodiments, sound used by the MS is known to repel certain pests such as unwanted animals, rodents, or bugs in order to prevent the person carrying the MS from encountering such pests during travel, for example during outdoor hiking or mountain climbing. In submarine acoustics, AOA is a method to locate certain objects. The FIGS. 3B and 3C flowcharts occur analogously for sound signals received by microphones 802 through 806 which are connected to service processing of FIGS. 3B and 3C. The only difference is wave spectrum used.
It has been shown that light can be used to triangulate position or location information (e.g. U.S. Pat. No. 6,549,288 (Migdal et al) and U.S. Pat. No. 6,549,289 (Ellis)). Optical sensors 802 through 806 detect a light source of, or illumination of, an MS, for example DLM 200. Data is superimposed on the light wave spectrum with specified frequency/wavelength and/or periodicity, or data occurs in patterned breaks in light transmission. Data may contain a unique identifier of the MS so service(s) attached to sensors 802 through 806 can communicate uniquely to an MS. Mirrors positioned at optical sensors 802 through 806 may be used to determine an AOA of light at the sensor, or alternatively TDOA of recognizable light spectrum is used to position an MS. The FIGS. 3B and 3C flowcharts occur analogously for light signals received by sensors 802 through 806 which are connected to service processing of FIGS. 3B and 3C. The only difference is wave spectrum used.
Heterogeneously speaking, FIG. 8A illustrates having strategically placed sensors 802 through 806 for detecting a wave spectrum and using TDOA, AOA, or MPT. Those skilled in the art appreciate that a wave is analogously dealt with by FIGS. 3B and 3C regardless of the wave type, albeit with different sensor types 802 through 806 and different sensor interface to service(s) of FIGS. 3B and 3C. Wave signal spectrums for triangulation by analogous processing to FIGS. 3B and 3C include microwaves, infrared, visible light, ultraviolet light, X-rays, gamma rays, longwaves, magnetic spectrum, or any other invisible, visible, audible, or inaudible wave spectrum. Sensors 802 through 806 are appropriately matched according to the requirements. Alternatively, a MS may be sensing wave spectrums emitted by transmitters 802 through 806.
Those skilled in the relevant arts appreciate that the point in all this discussion is all the wave forms provide methods for triangulating whereabouts information of an MS. Different types of wave forms that are available for an MS can be used solely, or in conjunction with each other, to determine MS whereabouts. MSs may be informed of their location using the identical wave spectrum used for whereabouts determination, or may use any other spectrum available for communicating WDR information back to the MS. Alternatively, the MS itself can determine WDR information relative applicable sensors/transmitters. In any case, a WDR 1100 is completed analogously to FIGS. 3B and 3C.
FIG. 8B depicts a flowchart for describing a preferred embodiment of locating a MS through physically sensing a MS, for example a DLM 200. Processing begins at block 810 upon contact with a candidate MS and continues to block 812 where initialization takes place. Initialization includes determining when, where, and how the contact was made. Then, block 814 takes the contact sample and sets it as input containing a unique identifier or handle of the MS which was sensed. There are various known embodiments of how the MS is sensed:

    
    
        a) Touching sensors contact the MS (or host/housing having MS) to interpret physical characteristics of the MS in order to uniquely identify it (e.g. Braille, embossed/raised/depressed symbols or markings, shape, temperature, depressions, size, combinations thereof, etc);
        b) Purchase is made with MS while in vicinity of device accepting purchase, and as part of that transaction, the MS is sensed as being at the same location as the device accepting purchase, for example using a cell phone to purchase a soft drink from a soft drink dispensing machine;
        c) Barcode reader is used by person to scan the MS (or host/housing having MS), for example as part of shipping, receiving, or transporting;
        d) The MS, or housing with MS, is sensed by its odor (or host/housing having MS), perhaps an odor indicating where it had been, where it should not be, or where it should be. Various odor detection techniques may be used;
        e) Optical sensing wherein the MS is scanned with optical sensory means, for example to read a serial number; and/or
        f) Any sensing means which can identify the MS through physical contact, or by nearby/close physical contact with some wave spectrum.

Block 814 continues to block 816 where a database is accessed for recognizing the MS identifier (handle) by mapping sensed information with an associated MS handle. If a match is found at block 818, then block 822 determines WDR 1100 information using the location of where sensing took place. If block 818 determines no match was found, then data is saved at block 820 for an unrecognized entity such as is useful when an MS should have been recognized, but was not. In another embodiment, the MS handle is directly sensed so block 814 continues directly to block 818 (no block 816). Block 820 continues to block 834 where processing terminates. Block 816 may not use the entire MS identifier for search, but some portion of it to make sure it is a supported MS for being located by sensing. The MS identifier is useful when communicating wirelessly the WDR information to the MS (at block 826).

    
    


Referring now back to block 822, processing continues to block 824 where a supervisory service may be updated with the MS whereabouts (if applicable), and block 826 communicates the WDR information to the MS. Any available communication method can be used for communicating the WDR information to the MS, as described above. Thereafter, the MS completes the WDR at block 828, block 830 prepares FIG. 2F parameters, and block 832 invokes FIG. 2F processing already described above. Processing terminates thereafter at block 834. Parameters set at block 830 are: WDRREF=a reference or pointer to the MS WDR; DELETEQ=FIG. 8B location queue discard processing; and SUPER=FIG. 8B supervisory notification (e.g. no supervisory notification processing because it was already handled at block 824, or by being in context of the FIG. 8B service processing). FIG. 8B processing is available at any appropriate time for the MS. In an alternate embodiment, the MS senses its environment to determine whereabouts.
See FIG. 11A descriptions. Fields are set to the following upon exit from block 828:
MS ID field 1100a is preferably set with: Same as was described for FIG. 2D (block 236) above.
DATE/TIME STAMP field 1100b is preferably set with: Same as was described for FIG. 2D (block 236) above.
LOCATION field 1100c is preferably set with: Location of the sensor sensing the MS.
CONFIDENCE field 1100d is preferably set with: Should be high confidence (e.g. 98) for indisputable contact sensing and is typically set with the same value.
LOCATION TECHNOLOGY field 1100e is preferably set with: “Contact”, or a specific type of Contact. The originator indicator is set to DLM.
LOCATION REFERENCE INFO field 1100f is preferably set with: null (not set).
COMMUNICATIONS REFERENCE INFO field 1100g is preferably set with: Same as was described for FIG. 2D (block 236) above.
SPEED field 1100h is preferably set with: null (not set), but can be set with speed required to arrive to the current location from a previously known time at a location, assuming the same time scale is used.
HEADING field 1100i is preferably set with: null (not set), but can be set to heading determined when arriving to the current location from a previously known location.
ELEVATION field 1100j is preferably set with: Elevation/altitude, if available.
APPLICATION FIELDS field 1100k is preferably set with: Same as was described for FIG. 2D (block 236) above.
CORRELATION FIELD 1100m is preferably set with: Not Applicable (i.e. not maintained to queue 22).
SENT DATE/TIME STAMP field 1100n is preferably set with: Not Applicable (i.e. not maintained to queue 22).
RECEIVED DATE/TIME STAMP field 1100p is preferably set with: Not Applicable (i.e. not maintained to queue 22).
FIG. 8C depicts a flowchart for describing a preferred embodiment of locating a MS, for example a DLM 200, through a manually entered location of the MS. MS user interface processing begins at block 850 when a user starts the user interface from code 18 and continues to block 852. Any of a variety of user interfaces, dependent on the type of MS, is used for manually entering the location of the MS. A user interfaces with the MS at block 852 until one of the monitored actions relevant to this disclosure are detected. Thereafter, if block 854 determines the user has selected to set his location manually, then processing continues to block 860. If block 854 determines the user did not select to manually set his location, then block 856 determines if the user selected to force the MS to determine its location. If the user did select to force the MS to get its own location, then block 856 continues to block 862. If the user did not select to force the MS to get its own location as determined by block 856, then processing continues to block 858. If block 858 determines the user wanted to exit the user interface, then block 880 terminates the interface and processing terminates at block 882. If block 858 determines the user did not want to exit the user interface, then block 884 handles any user interface actions which caused exit from block 852 yet were not handled by any action processing relevant to this disclosure.
With reference back to block 860, the user interfaces with the MS user interface to manually specify WDR information. The user can specify:
1) An address or any address subset such as a zip code;
2) Latitude, longitude, and elevation;
3) MAPSCO identifier;
4) FEMA map identifier;
5) USDA map identifier;
6) Direct data entry to a WDR 1100; or
7) Any other method for user specified whereabouts of the MS.
The user can specify a relevant confidence value for the manually entered location, however, processing at block 860 preferably automatically defaults a confidence value for the data entered. For example, a complete address, validated at block 860, will have a high confidence. A partial address such as city and state, or a zip code will have a low confidence value. The confidence value will reflect how large an area is candidate for where the MS is actually located. To prevent completely relying on the user at block 860 for accurate WDR information, validation embodiments may be deployed. Some examples:

    
    
        Upon specification (e.g. FEMA), the MS will access connected service(s) to determine accuracy (FEMA conversion tables);
        Upon specification (e.g. MAPSCO), the MS will access local resources to help validate the specification (e.g. MAPSCO conversion tables); and/or
        Upon specification (e.g. address), the MS can access queue 22 and/or history 30 for evidence proving likelihood of accuracy. The MS may also access services, or local resources, for converting location information for proper comparisons.

In any case, a confidence field 1100d value can be automatically set based on the validation results, and the confidence may, or may not, be enabled for override by the user.

    
    


After WDR information is specified at block 860, the MS completes the WDR at block 874, block 876 prepares parameters for FIG. 2F processing, and (at block 878) the MS invokes FIG. 2F processing already described above before returning back to block 852. Parameters set at block 876 are: WDRREF=a reference or pointer to the MS WDR; DELETEQ=FIG. 8C location queue discard processing; and SUPER=FIG. 8C supervisory notification processing. Various embodiments permit override of the confidence floor value by the user, or by FIG. 8C processing. Block 874 may convert the user specified information into a standardized more usable form in an LN-expanse (e.g. convert to latitude and longitude if possible, truncated precision for more area coverage). WDR 1100 fields (see FIG. 11A) are set analogously in light of the many variations already described above.
With reference back to block 862, if it is determined that the MS is equipped with capability (e.g. in range, or in readiness) to locate itself, then processing continues to block 864 where the MS locates itself using MS driven capability described by FIGS. 2E, 3C, 4B, 6B, and 8A or MS driven alternative embodiments to FIGS. 2D, 3B, 5B, 6A, 7D, 8A, and 8B, or any other MS capability for determining its own whereabouts with or without help from other data processing systems or services. Interfacing to locating capability preferably involves a timeout in case there is no, or slow, response, therefore block 864 continues to block 868 where it determined whether or not block 864 timed out prior to determining a location. If block 868 determines a timeout was encountered, then block 872 provides the user with an error to the user interface, and processing continues back to block 852. Block 872 preferably requires use acknowledgement prior to continuing to block 852.
If block 868 determines there was no timeout (i.e. whereabouts successfully determined), then block 870 interfaces to the locating interface to get WDR information, block 874 completes a WDR, and blocks 876 and 878 do as described above. If block 862 determines the MS cannot locate itself and needs help, then block 866 emits at least one broadcast request to any listening service which can provide the MS its location. Appropriate correlation is used for an anticipated response. Example services listening are service driven capability described by FIGS. 2D, 3B, 5B, 6A, 7D, 8A, and 8B, or service side alternative embodiments of FIGS. 2E, 3C, 4B, 6B, and 8A, or any other service capability for determining MS whereabouts with or without help from the MS or other data processing systems or services. Block 866 then continues to block 868.
If block 868 determines a timeout was encountered from the service broadcast request, then block 872 provides the user with an error to the user interface, and processing continues back to block 852. If block 868 determines there was no timeout (i.e. whereabouts successfully determined), then block 870 receives WDR information from the locating interface of the responding service, block 874 completes a WDR, and blocks 876 and 878 do as already described above.
See FIG. 11A descriptions. Depending how the MS was located via processing started at block 856 to block 862, a WDR is completed analogous to as described in Figs. above. If the user manually specified whereabouts at block 860, fields are set to the following upon exit from block 874:
MS ID field 1100a is preferably set with: Same as was described for FIG. 2D (block 236) above.
DATE/TIME STAMP field 1100b is preferably set with: Same as was described for FIG. 2D (block 236) above.
LOCATION field 1100c is preferably set with: Location entered by the user, or converted from entry by the user; preferably validated.
CONFIDENCE field 1100d is preferably set with: User specified confidence value, or a system assigned value per a validated manual specification. Confidence should reflect confidence of location precision (e.g. validated full address high; city and zip code low, etc). Manually specified confidences are preferably lower than other location technologies since users may abuse or set incorrectly, unless validated. Specifying lower confidence values than technologies above, for completely manual WDR specifications (i.e. no validation), ensures that manual specifications are only used by the MS in absence of other technologies.

LOCATION TECHNOLOGY field 1100e is preferably set with: “Manual”, or “Manual Validated”. Types of validations may further be elaborated. The originator indicator is set to DLM.

LOCATION REFERENCE INFO field 1100f is preferably set with: null (not set).

COMMUNICATIONS REFERENCE INFO field 1100g is preferably set with: null (not set).

SPEED field 1100h is preferably set with: null (not set).

HEADING field 1100i is preferably set with: null (not set).

ELEVATION field 1100j is preferably set with: null (not set).

APPLICATION FIELDS field 1100k is preferably set with: Same as was described for FIG. 2D (block 236) above; or as decided by the user.

CORRELATION FIELD 1100m is preferably set with: Not Applicable (i.e. not maintained to queue 22).

SENT DATE/TIME STAMP field 1100n is preferably set with: Not Applicable (i.e. not maintained to queue 22).

RECEIVED DATE/TIME STAMP field 1100p is preferably set with: Not Applicable (i.e. not maintained to queue 22).

FIG. 9A depicts a table for illustrating heterogeneously locating a MS, for example a DLM 200. While many location methods and systems have been exhausted above, there may be other system and methods for locating an MS which apply to the present disclosure. The requirement for LBX is that the MS be located, regardless of how that occurs. MSs disclosed herein can be located by one or many location technologies discussed. As MS prices move lower, and capabilities increase, an affordable MS will contain multiple abilities for being located. GPS, triangulation, in-range detection, and contact sensory may all be used in locating a particular MS as it travels. Equipping the MS with all techniques is straightforward and is compelling when there are competing, or complementary, technologies that the MS should participate in.
The FIG. 9A table has DLM location methods for rows and a single column for the MS (e.g. DLM 200). Each location technology can be driven by the client (i.e. the MS), or a service (i.e. the location server(s)) as denoted by a row qualifier “C” for client or “S” for service. An MS may be located by many technologies. The table illustrated shows that the MS with unique identifier 0A12:43EF:985B:012F is able to be heterogeneously located, specifically with local MS GPS capability, service side cell tower in-range detection, service side cell tower TDOA, service side cell tower MPT (combination of TDOA and AOA), service side antenna in-range detection, service side antenna AOA, service side antenna TDOA, service side antenna MPT, service side contact/sensory, and general service side MPT. The unique identifier in this example is a universal product identifier (like Host Bus Adapter (HBA) World Wide Name (WWN) identifiers are generated), but could be in other form as described above (e.g. phone #214-403-4071). An MS can have any subset of technologies used to locate it, or all of the technologies used to locate it at some time during its travels. An MS is heterogeneously located when two or more location technologies are used to locate the MS during MS travels and/or when two or more location technologies with incomplete results are used in conjunction with each other to locate the MS during MS travels, such as MPT. MPT is a heterogeneous location technology because it uses at least two different methods to accomplish a single location determination. Using combinations of different location technologies can be used, for example a TDOA measurement from an in-range antenna with a TDOA measurement relative a cell tower (e.g. as accomplished in MS processing of FIG. 26B), using completely different services that have no knowledge of each other. Another combination is to use a synergy of whereabouts data from one technology with whereabouts data from another technology. For example, in-range detection is used in combination with graphical identification to provide better whereabouts of a MS. In another example, a GPS equipped MS travels to an area where GPS does not work well (e.g. downtown amidst large and tall buildings). The DLM becomes an ILM, and is triangulated relative other MSs. So, an MS is heterogeneously located using two or more technologies to determine a single whereabouts, or different whereabouts of the MS during travel.
FIG. 9B depicts a flowchart for describing a preferred embodiment of heterogeneously locating a MS, for example DLM 200. While heterogeneously locating an MS can occur by locating the MS at different times using different location technologies, flowchart 9B is shown to discuss a generalization of using different location technologies with each other at the same time to locate an MS. Processing begins at block 950 and continues to block 952 where a plurality of parameters from more than one location technology are examined for locating an MS. Processing begins at block 950 by a service (or the MS) when a location technology by itself cannot be used to confidently locate the MS. Data deemed useful at block 952, when used in conjunction with data from a different location technology to confidently locate the MS, is passed for processing to block 954. Block 954 heterogeneously locates the MS using data from at least two location technologies to complement each other and to be used in conjunction with each other in order to confidently locate the MS. Once the MS whereabouts are determined at block 954, WDR information is communicated to the MS for further processing at block 956. In some embodiments where a service is heterogeneously locating the MS, block 956 communicates WDR information wirelessly to the MS before processing begins at block 958. In another embodiment where the MS is heterogeneously locating itself, block 956 communicates WDR information internally to WDR completion processing at block 958. In preferred embodiments, the MS completes its WDR information at block 958, FIG. 2F parameters are prepared at block 960, and the MS invokes FIG. 2F processing already described above (at block 962), before processing terminates at block 964. Parameters set at block 960 are: WDRREF=a reference or pointer to the MS WDR; DELETEQ=FIG. 9B location queue discard processing; and SUPER=FIG. 9B supervisory notification processing. WDR 1100 fields (see FIG. 11A) are set analogously in light of many variations already described above.
In some embodiments of FIG. 9B processing, Missing Part Triangulation (MPT) is used to heterogeneously locate an MS. For a service side embodiment example, block 950 begins service processing when TDOA information itself cannot be used to confidently locate the MS, or AOA information itself cannot be used to confidently locate the MS, however using angles and distances from each in conjunction with each other enables solving whereabouts confidently. See “Missing Part Triangulation (MPT)” section below with discussions for FIGS. 11A through 11E for MPT processing of blocks 952 and 954. Data discovered at block 952 and processed by block 954 depends on the embodiment, what stationary reference point locations are known at the time of blocks 952 and 954 processing, and which parts are missing for triangulating the MS. Having three (3) sides (all TDOA) with known stationary vertices location(s) solves the triangle for locating the MS. Three (3) angles (all AOA) with known stationary vertices location(s) solves the triangle for locating the MS. Those skilled in the art appreciate that solving triangulation can make complementary use of different distances (time used to determine length in TDOA) and angles (from AOA) for deducing a MS location confidently (e.g. MPT). Those skilled in the art recognize that having stationary reference locations facilitates requiring less triangular information for deducing a MS location confidently.
While MPT has been discussed by example, flowchart 9B is not to be interpreted in a limiting sense. Any location technologies, for example as shown in FIG. 9A, can be used in conjunction with each other when not all information required is available in a single location technology to confidently deduce an MS location. Data available from the different location technologies available will be examined on its own merits, and optionally used in conjunction to deduce a confident location. For example, a TDOA (difference between when signal sent and when received) measurement from “coming within range” technology can be used to distinguish how close, or how far, is an MS in the vicinity. That measurement may be used to more confidently locate the MS using other TDOA measurements from other unrelated “coming within range” whereabouts information.
With the many DLM examples above, it should be clear now to the reader how to set the WDR 1100 for DLM invoked FIG. 2F processing. There can be other location technologies that will set WDR 1100 fields analogously. Locating methodologies of FIGS. 2A through 9B can be used in any combination, for example for more timely or accurate locating. Furthermore, a MS automatically takes on a role of a DLM or ILM depending on what capability is available at the time, regardless of whether or not the MS is equipped for being directly located. As a DLM roams to unsupported areas, it can remain a DLM using different DLM technologies, and it can become an ILM to depend on other MSs (ILMs or DLMs) in the vicinity to locate it.
LBX Indirectly Located Mobile Data Processing Systems (ILMs)
FIGS. 10A and 10B depict an illustration of a Locatable Network expanse (LN-Expanse) 1002 for describing locating of an ILM with all DLMs. With reference now to FIG. 10A, DLM 200a, DLM 200b, DLM 200c, DLM 200d, and DLM 200e (referred to generally in FIGS. 10A and 10B discussions as DLMs 200) are each automatically and directly located, for example using any of the automatic location technologies heretofore described. ILM 1000b is automatically located using the reference locations of DLM 200b, DLM 200c, and DLM 200e. DLMs 200 can be mobile while providing reference locations for automatically determining the location of ILM 1000b. Timely communications between MSs is all that is required for indirectly locating MSs. In some embodiments, DLMs 200 are used to triangulate the position of ILM 1000b using aforementioned wave spectrum(s) reasonable for the MSs. Different triangulation embodiments can triangulate the location of ILM 1000b using TDOA, AOA, or MPT, preferably by the ILM 1000b seeking to be located. In other embodiments, TDOA information is used to determine how close ILM 1000b is to a DLM for associating the ILM at the same location of a DLM, but with how close nearby. In other embodiments, an ILM is located by simply being in communications range to another MS. DLMs 200 can be referenced for determining elevation of an ILM. The same automatic location technologies used to locate a DLM can be used to automatically locate an ILM, except the DLMs are mobile and serve as the reference points. It is therefore important that DLM locations be timely known when references are needed for locating ILMs. Timely ILM interactions with other MSs, and protocol considerations are discussed in architecture 1900 below. DLMs 200b, 200c, and 200e are preferably selected for locating ILM 1000b by their WDR high confidence values, however any other WDR data may be used whereby wave spectrum, channel signal strength, time information, nearness, surrounded-ness, etc is considered for generating a confidence field 1100d of the WDR 1100 for the located ILM. Preferably, those considerations are factored into a confidence value, so that confidence values can be completely relied upon.
With reference now to FIG. 10B, ILM 1000c has been located relative a plurality of DLMs, namely DLM 200b, DLM 200d, and DLM 200e. ILM 1000c is located analogously to ILM 1000b as described for FIG. 10A, except there are different DLMs involved with doing the locating of ILM 1000c because of a different location of ILM 1000c. FIGS. 10A and 10B illustrate that MSs can be located using other MSs, rather than fixed stationary references described for FIGS. 2A through 9B. ILM 1000b and ILM 1000c are indirectly located using DLMs 200.
FIG. 10C depicts an illustration of a Locatable Network expanse (LN-Expanse) 1002 for describing locating of an ILM with an ILM and DLM. ILM 1000a is automatically located using the reference locations of DLM 200c, DLM 200b, and ILM 1000b. DLM 200b, DLM 200c and ILM 1000b can be mobile while providing reference locations for automatically determining the location of ILM 1000a. In some embodiments, MSs are used to triangulate the position of ILM 1000a using any of the aforementioned wave spectrum(s) (e.g. WiFi 802.x, cellular radio, etc) reasonable for the MSs. Different triangulation embodiments can triangulate the location of ILM 1000a using TDOA, AOA, or MPT, preferably by the ILM 1000a seeking to be located. In other embodiments, TDOA information is used to determine how close ILM 1000a is to a MS (DLM or ILM) for associating the ILM at the same location of a MS, but with how close nearby. In other embodiments, an ILM is located by simply being in communications range to another MS. DLMs or ILMs can be referenced for determining elevation of ILM 1000a. The same automatic location technologies used to locate a MS (DLM or ILM) are used to automatically locate an ILM, except the MSs are mobile and serve as the reference points. It is therefore important that MS (ILM and/or DLM) locations be timely known when references are needed for locating ILMs. Timely ILM interactions with other MSs, and protocol considerations are discussed in architecture 1900 below. DLM 200b, DLM 200c, and ILM 1000b are preferably selected for locating ILM 1000a by their WDR high confidence values, however any other WDR data may be used whereby wave spectrum, channel signal strength, time information, nearness, surrounded-ness, etc is considered for generating a confidence field 1100d of the WDR 1100 for the located ILM. Preferably, those considerations were already factored into a confidence value so that confidence values can be completely relied upon. ILM 1000a is indirectly located using DLM(s) and ILM(s).
FIGS. 10D, 10E, and 10F depict an illustration of a Locatable Network expanse (LN-Expanse) 1002 describing locating of an ILM with all ILMs. With reference now to FIG. 10D, ILM 1000e is automatically located using the reference locations of ILM 1000a, ILM 1000b, and ILM 1000c. ILM 1000a, ILM 1000b and ILM 1000c can be mobile while providing reference locations for automatically determining the location of ILM 1000e. Timely communications between MSs is all that is required. In some embodiments, MSs are used to triangulate the position of ILM 1000e using any of the aforementioned wave spectrum(s) reasonable for the MSs. Different triangulation embodiments can triangulate the location of ILM 1000e using TDOA, AOA, or MPT processing (relative ILMs 1000a through 1000c), preferably by the ILM 1000e seeking to be located. ILMs can be referenced for determining elevation of ILM 1000e. The same automatic location technologies used to locate a MS (DLM or ILM) are used to automatically locate an ILM, except the MSs are mobile and serve as the reference points. It is therefore important that ILM locations be timely known when references are needed for locating ILMs. Timely ILM interactions with other MSs, and protocol considerations are discussed in architecture 1900 below. ILM 1000a, ILM 1000b, and ILM 1000c are preferably selected for locating ILM 1000e by their WDR high confidence values, however any other WDR data may be used whereby wave spectrum, channel signal strength, time information, nearness, surrounded-ness, etc is considered for generating a confidence field 1100d of the WDR 1100 for the located ILM. Preferably, those considerations were already factored into a confidence value so that confidence values can be completely relied upon. ILM 1000e is indirectly located using ILM 1000a, ILM 1000b, and ILM 1000c. 
With reference now to FIG. 10E, ILM 1000g is automatically located using the reference locations of ILM 1000a, ILM 1000c, and ILM 1000e. ILM 1000a, ILM 1000c and ILM 1000e can be mobile while providing reference locations for automatically determining the location of ILM 1000g. ILM 1000g is located analogously to ILM 1000e as described for FIG. 10D, except there are different ILMs involved with doing the locating of ILM 1000g because of a different location of ILM 1000g. Note that as ILMs are located in the LN-expanse 1002, the LN-expanse expands with additionally located MSs.
With reference now to FIG. 10F, ILM 1000i is automatically located using the reference locations of ILM 1000f, ILM 1000g, and ILM 1000h. ILM 1000f, ILM 1000g and ILM 1000h can be mobile while providing reference locations for automatically determining the location of ILM 1000i. ILM 1000i is located analogously to ILM 1000e as described for FIG. 10D, except there are different ILMs involved with doing the locating of ILM 1000i because of a different location of ILM 1000i. FIGS. 10D through 10F illustrate that an MS can be located using all ILMs, rather than all DLMs (FIGS. 10A and 10B), a mixed set of DLMs and ILMs (FIG. 10C), or fixed stationary references (FIGS. 2A through 9B). ILMs 1000e, 1000g, and 1000i are indirectly located using ILMs. Note that in the FIG. 10 illustrations the LN-expanse 1002 has expanded down and to the right from DLMs directly located up and to the left. It should also be noted that locating any MS can be done with at least one other MS. Three are not required as illustrated. It is preferable that triangulation references used surround an MS.
FIGS. 10G and 10H depict an illustration for describing the reach of a Locatable Network expanse (LN-Expanse) according to MSs. Location confidence will be dependent on the closest DLMs, how stale an MS location becomes for serving as a reference point, and how timely an MS refreshes itself with a determined location. An MS preferably has highest available processing speed with multithreaded capability in a plurality of hardware processors and/or processor cores. A substantially large number of high speed concurrent threads of processing that can occur within an MS provides for an optimal capability for being located quickly among its peer MSs, and for serving as a reference to its peer MSs. MS processing described in flowcharts herein assumes multiple threads of processing with adequate speed to accomplish an optimal range in expanding the LN-Expanse 1002.
With reference now to FIG. 10G, an analysis of an LN-Expanse 1002 will contain at least one DLM region 1022 containing a plurality of DLMs, and at least one DLM indirectly located region 1024 containing at least one ILM that has been located with all DLMs. Depending on the range, or scope, of an LN-Expanse 1002, there may be a mixed region 1026 containing at least one ILM that has been indirectly located by both an ILM and DLM, and there may be an exclusive ILM region 1028 containing at least one ILM that has been indirectly located by all ILMs. The further in distance the LN-Expanse has expanded from DLM region 1022 with a substantial number of MSs, the more likely there will an exclusive ILM region 1028. NTP may be available for use in some regions, or some subset of a region, yet not available for use in others. NTP is preferably used where available to minimize communications between MSs, and an MS and service(s). An MS has the ability to make use of NTP when available.
With reference now to FIG. 10H, all MSs depicted know their own locations. The upper left-hand portion of the illustration consists of region 1022. As the reader glances more toward the rightmost bottom portion of the illustration, there can be regions 1024 and regions 1026 in the middle of the illustration. At the very rightmost bottom portion of the illustration, remaining ILMs fall in region 1028. An ILM is indirectly located relative all DLMs, DLMs and ILMs, or all ILMs. An “Affirmifier” in a LN-expanse confidently knows its own location and can serve as a reference MS for other MSs. An affirmifier is said to “affirmify” when in the act of serving as a reference point to other MSs. A “Pacifier” can contribute to locating other systems, but with a low confidence of its own whereabouts. The LN-Expanse is a network of located/locatable MSs, and is preferably expanded by a substantial number of affirmifiers.
FIG. 10I depicts an illustration of a Locatable Network expanse (LN-Expanse) for describing a supervisory service, for example supervisory service 1050. References in flowcharts for communicating information to a supervisory service can refer to communicating information to supervisory service 1050 (e.g. blocks 294 and 296 from parameters passed to block 272 for many processing flows). The only requirement is that supervisory service 1050 be contactable from an MS (DLM or ILM) that reports to it. An MS reporting to service 1050 can communicate directly to it, through another MS (i.e. a single hop), or through a plurality of MSs (i.e. a plurality of hops). Networks of MSs can be preconfigured, or dynamically reconfigured as MSs travel to minimize the number of hops between a reporting MS and service 1050. A purely peer to peer preferred embodiment includes a peer to peer network of located/locatable MSs that interact with each other as described herein. The purely peer to peer preferred embodiment may have no need to include a service 1050. Nevertheless, a supervisory service may be warranted to provide certain processing centralization, or for keeping information associated with MSs. In some embodiments, supervisory service 1050 includes at least one database to house data (e.g. data 8; data 20; data 36; data 38, queue data 22, 24, 26; and/or history 30) for any subset of MSs which communicate with it, for example to house MS whereabouts information.
FIG. 11A depicts a preferred embodiment of a Whereabouts Data Record (WDR) 1100 for discussing operations of the present disclosure. A WDR takes on a variety of formats depending on the context of use. There are several parts to a WDR depending on use. There is an identity section which contains a MS ID field 1100a for identifying the WDR. Field 1100a can contain a null value if the WDR is for whereabouts information received from a remote source which has not identified itself. MSs do not require identities of remote data processing systems in order to be located. There is a core section which is required in WDR uses. The core section includes date/time stamp field 1100b, location field 1100c, and confidence field 1100d. There is a transport section of fields wherein any one of the fields may be used when communicating WDR information between data processing systems. Transport fields include correlation field 1100m, sent date/time stamp field 1100n, and received date/time stamp field 1100p. Transport fields may also be communicated to send processing (e.g. queue 24), or received from receive processing (e.g. queue 26). Other fields are of use depending on the MS or applications thereof, however location technology field 1100e and location reference info field 1100f are of particular interest in carrying out additional novel functionality of the present disclosure. Communications reference information field 1100g may be valuable, depending on communications embodiments in the LN-expanse.
Some fields are multi-part fields (i.e. have sub-fields). Whereabouts Data Records (WDRs) 1100 may be fixed length records, varying length records, or a combination with field(s) in one form or the other. Some WDR embodiments will use anticipated fixed length record positions for subfields that can contain useful data, or a null value (e.g. −1). Other WDR embodiments may use varying length fields depending on the number of sub-fields to be populated. Other WDR embodiments will use varying length fields and/or sub-fields which have tags indicating their presence. Other WDR embodiments will define additional fields to prevent putting more than one accessible data item in one field. In any case, processing will have means for knowing whether a value is present or not, and for which field (or sub-field) it is present. Absence in data may be indicated with a null indicator (−1), or indicated with its lack of being there (e.g. varying length record embodiments).
When a WDR is referenced in this disclosure, it is referenced in a general sense so that the contextually reasonable subset of the WDR of FIG. 11A is used. For example, when communicating WDRs (sending/receiving data 1302 or 1312) between data processing systems, a reasonable subset of WDR 1100 is communicated in preferred embodiments as described with flowcharts. When a WDR is maintained to queue 22, preferably most (if not all) fields are set for a complete record, regardless if useful data is found in a particular field (e.g. some fields may be null (e.g. −1)). Most importantly, Whereabouts Data Records (WDRs) are maintained to queue 22 for maintaining whereabouts of the MS which owns queue 22. LBX is most effective the more timely (and continuous) a MS has valid whereabouts locally maintained. WDRs are designed for maintaining whereabouts information independent of any location technology applied. Over time, a MS may encounter a plurality of location technologies used to locate it. WDRs maintained to a first MS queue 22 have the following purpose:

    
    
        1) Maintain timely DLM whereabouts information of the first MS independent of any location technology applied;
        2) Maintain whereabouts information of nearby MSs independent of any location technology applied;
        3) Provide DLM whereabouts information to nearby MSs for determining their own locations (e.g. provide whereabouts information to at least a second MS for determining its own location);
        4) Maintain timely ILM whereabouts information of the first MS independent of any location technology applied; and
        5) Provide ILM whereabouts information to nearby MSs so they can determine their own locations (e.g. first MS providing whereabouts information to at least a second MS for the second MS determining its own whereabouts).
    
    


A MS may go in and out of DLM or ILM roles as it is mobile. Direct location methods are not always available to the MS as it roams, therefore the MS preferably does all of 1 through 5 above. When the WDR 1100 contains a MS ID field 1100a matching the MS which owns queue 22, that WDR contains the location (location field 1100c) with a specified confidence (field 1100d) at a particular time (date/time stamp field 1100b) for that MS. Preferably the MS ID field 1100a, date/time stamp field 1100b and confidence field 1100d is all that is required for searching from the queue 22 the best possible, and most timely, MS whereabouts at the time of searching queue 22. Other embodiments may consult any other fields to facilitate the best possible MS location at the time of searching and/or processing queue 22. The WDR queue 22 also maintains affirmifier WDRs, and acceptable confidence pacifier WDRs (block 276), which are used to calculate a WDR having matching MS field 1100a so the MS knows its whereabouts via indirect location methods. Affirmifier and pacifier WDRs have MS ID field 1100a values which do not match the MS owning queue 22. This distinguishes WDRs of queue 22 for A) accessing the current MS location; from B) the WDRs from other MSs. All WDR fields of affirmifier and pacifier originated WDRs are of importance for determining a best location of the MS which owns queue 22, and in providing LBX functionality.
MS ID field 1100a is a unique handle to an MS as previously described. Depending on the installation, MS ID field 1100a may be a phone #, physical or logical address, name, machine identifier, serial number, encrypted identifier, concealable derivative of a MS identifier, correlation, pseudo MS ID, or some other unique handle to the MS. An MS must be able to distinguish its own unique handle from other MS handles in field 1100a. For indirect location functionality disclosed herein, affirmifier and pacifier WDRs do not need to have a correct originating MS ID field 1100a. The MS ID may be null, or anything to distinguish WDRs for MS locations. However, to accomplish other LBX features and functionality, MS Identifiers (MS IDs) of nearby MSs (or unique correlations thereof) maintained in queue 22 are to be known for processing by an MS. MS ID field 1100a may contain a group identifier of MSs in some embodiments for distinguishing between types of MSs (e.g. to be treated the same, or targeted with communications, as a group), as long as the MS containing queue 22 can distinguish its own originated WDRs 1100. A defaulted value may also be set for a “do not care” setting (e.g. null).
Date/Time stamp field 1100b contains a date/time stamp of when the WDR record 1100 was completed by an MS for its own whereabouts prior to WDR queue insertion. It is in terms of the date/time scale of the MS inserting the local WDR (NTP derived or not). Date/Time stamp field 1100b may also contain a date/time stamp of when the WDR record 1100 was determined for the whereabouts of an affirmifier or pacifier originating record 1100 to help an MS determine its own whereabouts, but it should still be in terms of the date/time scale of the MS inserting the local WDR (NTP derived or not) to prevent time conversions when needed, and to promote consistent queue 22 searches/sorts/etc. The date/time stamp field 1100b should use the best possible granulation of time, and may be in synch with other MSs and data processing systems according to NTP. A time zone, day/light savings time, and NTP indicator is preferably maintained as part of field 1100b. The NTP indicator (e.g. bit) is for whether or not the date/time stamp is NTP derived (e.g. the NTP use setting is checked for setting this bit when completing the WDR for queue 22 insertion). In some embodiments, date/time stamp field 1100b is measured in the same granulation of time units to an atomic clock available to MSs of an LN-Expanse 1002. When NTP is used in a LN-Expanse, identical time server sources are not a requirement provided NTP derived date/time stamps have similar accuracy and dependability.
Location field 1100c depends on the installation of the present disclosure, but can include a latitude and longitude, cellular network cell identifier, geocentric coordinates, geodetic coordinates, three dimensional space coordinates, area described by GPS coordinates, overlay grid region identifier or coordinates, GPS descriptors, altitude/elevation (e.g. in lieu of using field 1100j), MAPSCO reference, physical or logical network address (including a wildcard (e.g. ip addresses 145.32.*.*)), particular address, polar coordinates, or any other two/three dimensional location methods/means used in identifying the MS location. Data of field 1100c is preferably a consistent measure (e.g. all latitude and longitude) for all location technologies that populate WDR queue 22. Some embodiments will permit using different measures to location field 1100c (e.g. latitude and longitude for one, address for another; polar coordinates for another, etc) which will be translated to a consistent measure at appropriate processing times.
Confidence field 1100d contains a value for the confidence that location field 1100c accurately describes the location of the MS when the WDR is originated by the MS for its own whereabouts. Confidence field 1100d contains a value for the confidence that location field 1100c accurately describes the location of an affirmifier or pacifier that originated the WDR. A confidence value can be set according to known timeliness of processing, communications and known mobile variables (e.g. MS speed, heading, yaw, pitch, roll, etc) at the time of transmission. Confidence values should be standardized for all location technologies used to determine which location information is of a higher/lower confidence when using multiple location technologies (as determined by fields 1100e and 1100f) for enabling determination of which data is of a higher priority to use in determining whereabouts. Confidence value ranges depend on the implementation. In a preferred embodiment, confidence values range from 1 to 100 (as discussed previously) for denoting a percentage of confidence. 100% confidence indicates the location field 1100c is guaranteed to describe the MS location. 0% confidence indicates the location field 1100c is guaranteed to not describe the MS location. Therefore, the lowest conceivable value of a queue 22 for field 1100d should be 1. Preferably, there is a lowest acceptable confidence floor value configured (by system, administrator, or user) as used at points of queue entry insertion—see block 276 to prevent frivolous data to queue 22. In most cases, WDRs 1100 contain a confidence field 1100d up to 100. In confidence value preferred embodiments, pacifiers know their location with a confidence of less than 75, and affirmifiers know their location with a confidence value 75 or greater. The confidence field is skewed to lower values as the LN-expanse 1002 is expanded further from region 1022. Confidence values are typically lower when ILMs are used to locate a first set of ILMs (i.e. first tier), and are then lower when the first set of ILMs are used to locate a second set of ILMs (second tier), and then lower again when the second set of ILMs are used to locate a third set of ILMs (third tier), and so on. Often, examination of a confidence value in a WDR 1100 can indicate whether the MS is a DLM, or an ILM far away from DLMs, or an MS which has been located using accurate (high confidence) or inaccurate (low confidence) locating techniques.
Location Technology field 1100e contains the location technology used to determine the location of location field 1100c. An MS can be located by many technologies. Location Technology field 1100e can contain a value from a row of FIG. 9A or any other location technology used to locate a MS. WDRs inserted to queue 22 for MS whereabouts set field 1100e to the technology used to locate the MS. WDRs inserted to queue 22 for facilitating a MS in determining whereabouts set field 1100e to the technology used to locate the affirmifier or pacifier. Field 1100e also contains an originator indicator (e.g. bit) for whether the originator of the WDR 1100 was a DLM or ILM. When received from a service that has not provided confidence, this field may be used by a DLM to determine confidence field 1100d. 
Location Reference Info field 1100f preferably contains one or more fields useful to locate a MS in processing subsequent of having been inserted to queue 22. In other embodiments, it contains data that contributed to confidence determination. Location Reference Info field 1100f may contain information (TDOA measurement and/or AOA measurement—see inserted field 1100f for FIGS. 2D, 2E and 3C) useful to locate a MS in the future when the WDR originated from the MS for its own whereabouts. Field 1100f will contain selected triangulation measurements, wave spectrum used and/or particular communications interfaces 70, signal strength(s), TDOA information, AOA information, or any other data useful for location determination. Field 1100f can also contain reference whereabouts information (FIG. 3C) to use relative a TDOA or AOA (otherwise WDR location field assumed as reference). In one embodiment, field 1100f contains the number of DLMs and ILMs which contributed to calculating the MS location to break a tie between using WDRs with the same confidence values. In another embodiment, a tier of ILMs used to locate the MS is maintained so there is an accounting for the number of ILMs in the LN-expanse between the currently located MS and a DLM. In other embodiments, MS heading, yaw, pitch and roll, or accelerometer values are maintained therein, for example for antenna AOA positioning. When wave spectrum frequencies or other wave characteristics have changed in a transmission used for calculating a TDOA measurement, appropriate information may be carried along, for example to properly convert a time into a distance. Field 1100f should be used to facilitate correct measurements and uses, if needed conversions have not already taken place.
Communications reference information field 1100g is a multipart record describing the communications session, channel, and bind criteria between the MS and MSs, or service(s), that helped determine its location. In some embodiments, field 1100g contains unique MS identifiers, protocol used, logon/access parameters, and useful statistics of the MSs which contributed to data of the location field 1100c. An MS may use field 1100g for WDRs originated from affirmifiers and pacifiers for subsequent LBX processing.
Speed field 1100h contains a value for the MS speed when the WDR is originated by the MS for its own whereabouts. Speed field 1100d may contain a value for speed of an affirmifier or pacifier when the WDR was originated elsewhere. Speed is maintained in any suitable units.
Heading field 1100i contains a value for the MS heading when the WDR is originated by the MS for its own whereabouts. Heading field 1100i may contain a value for heading of an affirmifier or pacifier when the WDR was originated elsewhere. Heading values are preferably maintained in degrees up to 360 from due North, but is maintained in any suitable directional form.
Elevation field 1100j contains a value for the MS elevation (or altitude) when the WDR is originated by the MS for its own whereabouts. Elevation field 1100j may contain a value for elevation (altitude) of an affirmifier or pacifier when the WDR was originated elsewhere. Elevation (or altitude) is maintained in any suitable units.
Application fields 1100k contains one or more fields for describing application(s) at the time of completing, or originating, the WDR 1100. Application fields 1100k may include field(s) for:

    
    
        a) MS Application(s) in use at time;
        b) MS Application(s) context(s) in use at time;
        c) MS Application(s) data for state information of MS Application(s) in use at time;
        d) MS Application which caused WDR 1100;
        e) MS Application context which caused WDR 1100;
        f) MS Application data for state information of MS Application which caused WDR 1100;
        g) Application(s) in use at time of remote MS(s) involved with WDR;
        h) Application(s) context(s) in use at time of remote MS(s) involved with WDR;
        i) MS Application(s) data for state information of remote MS(s) involved with WDR;
        j) Remote MS(s) criteria which caused WDR 1100;
        k) Remote MS(s) context criteria which caused WDR 1100;
        l) Remote MS(s) data criteria which caused WDR 1100;
        m) Application(s) in use at time of service(s) involved with WDR;
        n) Application(s) context(s) in use at time of service(s) involved with WDR;
        o) MS Application(s) data for state information of service(s) involved with WDR;
        p) Service(s) criteria which caused WDR 1100;
        q) Service(s) context criteria which caused WDR 1100;
        r) Service(s) data criteria which caused WDR 1100;
        s) MS navigation APIs in use;
        t) Web site identifying information;
        u) Physical or logical address identifying information;
        v) Situational location information as described in U.S. Pat. Nos. 6,456,234; 6,731,238; 7,187,997 (Johnson);
        w) Transactions completed at a MS;
        x) User configurations made at a MS;
        y) Environmental conditions of a MS;
        z) Application(s) conditions of a MS;
        aa) Service(s) conditions of a MS;
        bb) Date/time stamps (like field 1100b) with, or for, any item of a) through aa); and/or
        cc) Any combinations of a) through bb).
    
    


Correlation field 1100m is optionally present in a WDR when the WDR is in a transmission between systems (e.g. wireless communications) such as in data 1302 or 1312. Field 1100m provides means for correlating a response to an earlier request, or to correlate a response to an earlier broadcast. Correlation field 1100m contains a unique handle. In a LN-expanse which globally uses NTP, there is no need for correlation in data 1302 or 1312. Correlation field 1100m may be present in WDRs of queues 24 or 26. Alternatively, a MS ID is used for correlation.
Sent date/time stamp field 1100n is optionally present in a WDR when the WDR is in transmission between systems (e.g. wireless communications) such as in data 1302 or 1312. Field 1100n contains when the WDR was transmitted. A time zone, day/light savings time, and NTP indicator is preferably maintained as part of field 1100n. Field 1100n is preferably not present in WDRs of queue 22 (but can be if TDOA measurement calculation is delayed to a later time). In some embodiments, there is no need for field 1100n. Whereabouts determined for MSs of an LN-Expanse may be reasonably timely, facilitating simplicity of setting outbound field 1100b to the transmission date/time stamp at the sending data processing system, rather than when the WDR was originally completed for whereabouts (e.g. when substantially the same time anyway). Sent date/time field 1100n may be present in WDRs of queues 24 or 26.
Received date/time stamp field 1100p is preferably present in a WDR when inserted to queue 26 by receiving thread(s) upon received data 1302 or 1312. Field 1100p contains when the WDR was received by the MS. A time zone, day/light savings time, and NTP indicator is preferably maintained as part of field 1100p. Field 1100p is preferably not present in WDRs of queue 22 (but can be if TDOA measurement calculation is delayed to a later time). In some embodiments, there is no need for field 1100p. For example, thread(s) 1912 may be listening directly on applicable channel(s) and can determine when the data is received. In another embodiment, thread(s) 1912 process fast enough to determine the date/time stamp of when data 1302 or 1312 is received since minimal time has elapsed between receiving the signal and determining when received. In fact, known processing duration between when received and when determined to be received can be used to correctly alter a received date/time stamp. Received date/time stamp field 1100p is preferably added to records placed to queue 26 by receiving thread(s) feeding queue 26.
Any fields of WDR 1100 which contain an unpredictable number of subordinate fields of data preferably use a tagged data scheme, for example an X.409 encoding for a Token, Length, and Value (called a TLV encoding). Therefore, a WDR 1100, or field therein, can be a variable sized record. For example, Location Reference info field 1100f may contain TTA, 8, 0.1456 where the Token=“TTA” for Time Till Arrival (TDOA measurement between when sent and when received), Length=8 for 8 bytes to follow, and Value=0.1456 in time units contained within the 8 bytes; also SS, 4, 50 where Token=“Signal Strength”, 4=4 for 4 bytes to follow, and Value=50 dBu for the signal strength measurement. This allows on-the-fly parsing of unpredictable, but interpretable, multipart fields. The TLV encoding also enables-on-the-fly configuration for parsing new subordinate fields to any WDR 1100 field in a generic implementation, for example in providing parse rules to a Lex and Yacc implementation, or providing parse rules to a generic top down recursive TLV encoding parser and processor.
Any field of WDR 1100 may be converted: a) prior to insertion to queue 22; or b) after access to queue 22; or c) by queue 22 interface processing; for standardized processing. Any field of WDR 1100 may be converted when sending/receiving/broadcasting, or related processing, to ensure a standard format. Other embodiments will store and access values of WDR 1100 field(s) which are already in a standardized format. WDR 1100 fields can be in any order, and a different order when comparing what is in data transmitted versus data maintained to queue 22.
An alternate embodiment to WDRs maintained to queue 22 preserves transport fields 1100m, 1100n and/or 1100p, for example for use on queue 22. This would enable 1952 thread(s) to perform TDOA measurements that are otherwise calculated in advance and kept in field 1100f. However, queue 22 size should be minimized and the preferred embodiment uses transport fields when appropriate to avoid carrying them along to other processing.
FIGS. 11B, 11C and 11D depict an illustration for describing various embodiments for determining the whereabouts of an MS, for example an ILM 1000e. With reference now to FIG. 11B, a MS 1000e location is located by using locations of three (3) other MSs: MS4, MS5, and MS6 (referred to generally as MSj). MSj are preferably located with a reasonably high level of confidence. In some embodiments, MSj are all DLMs. In some embodiments, MSj are all ILMs. In some embodiments, MSj are mixed DLMs and ILMs. Any of the MSs may be mobile during locating of MS 1000e. Wave spectrums in use, rates of data communications and MS processing speed, along with timeliness of processing described below, provide timely calculations for providing whereabouts of ILM 1000e with a high level of confidence. The most confident MSs (MSj) were used to determine the MS 1000e whereabouts. For example, MSj were all located using a form of GPS, which in turn was used to triangulate the whereabouts of MS 1000e. In another example, MS4 was located by a form of triangulation technology, MS5 was located by a form of “coming into range” technology, and MS6 was located by either of the previous two, or some other location technology. It is not important how an MS is located. It is important that each MS know its own whereabouts and maintain a reasonable confidence to it, so that other MSs seeking to be located can be located relative highest confidence locations available. The WDR queue 22 should always contain at least one entry indicating the location of the MS 2 which owns WDR queue 22. If there are no entries contained on WDR queue 22, the MS 2 does not know its own location.
With reference now to FIG. 11C, a triangulation of MS 1000e at location 1102 is explained using location (whereabouts) 1106 of MS4, location (whereabouts) 1110 of MS5, and location (whereabouts) 1114 of MS6. Signal transmission distance from MSj locations are represented by the radiuses, with r1 the TDOA measurement (time difference between when sent and when received) between MS4 and MS 1000e, with r2 the TDOA measurement (time difference between when sent and when received) between MS5 and MS 1000e, with r3 the TDOA measurement (time difference between when sent and when received) between MS6 and MS 1000e. In this example, the known locations of MSj which are used to determine the location of MS 1000e allow triangulating the MS 1000e whereabouts using the TDOA measurements. In fact, less triangular data in the illustration can be necessary for determining a highly confident whereabouts of MS 1000e. 
With reference now to FIG. 11D, a triangulation of MS 1000e at location 1102 is explained using location (whereabouts) 1106 of MS4, location (whereabouts) 1110 of MS5, and location (whereabouts) 1114 of MS6. In some embodiments, AOA measurements taken at a positioned antenna of MS 1000e at location 1102 are used relative the whereabouts 1106, whereabouts 1110, whereabouts 1114 (AOA 1140, AOA 1144 and AOA 1142), wherein AOA measurements are detected for incoming signals during known values for MS heading 1138 with MS yaw, pitch, and roll (or accelerometer readings). AOA triangulation is well known in the art. Line segment 1132 represents the direction of signal arrival to the antenna at whereabouts 1102 from MS4 at whereabouts 1106. Line segment 1134 represents the direction of signal arrival to the antenna at whereabouts 1102 from MS5 at whereabouts 1110. Line segment 1136 represents the direction of signal arrival to the antenna at whereabouts 1102 from MS6 at whereabouts 1114. In this example, the known locations of MSj which are used to determine the location of MS 1000e allow triangulating the MS 1000e whereabouts using the AOA measurements. In fact, less triangular data in the illustration can be necessary for determining a highly confident whereabouts of MS 1000e. Alternative embodiments will use AOA measurements of outbound signals from the MS at whereabouts 1102 detected at antennas of whereabouts 1106 and/or 1110 and/or 1114.
Missing Part Triangulation (MPT)
FIGS. 11C and 11D illustrations can be used in a complementary manner when only one or two TDOA measurements are available and/or not all stationary locations, or MS reference locations, are known at the time of calculation. Another example is when only one or two AOA angles is available and/or not all stationary locations, or MS reference locations, are known at the time of calculation. However, using what is available from each technology in conjunction with each other allows solving the MS whereabouts (e.g. blocks 952/954 processing above). MPT is one example of solving for missing parts using more than one location technology. Condition of data known for locating a MS (e.g. whereabouts 1106, 1110 and 1114) may be the following:
1) AAS=two angles and a side;
2) ASA=two angles and a common side;
3) SAS=two sides and the included angle; or
4) SSA=two sides and a non-included angle.
TDOA measurements are distances (e.g. time difference between when sent and when received), and AOA measurements are angles. Each of the four conditions are recognized (e.g. block 952 above), and data is passed for each of the four conditions for processing (e.g. block 954 above). For AAS (#1) and ASA (#2), processing (e.g. block 954) finds the third angle by subtracting the sum of the two known angles from 180 degrees (i.e. using mathematical law that triangles' interior angles add up to 180 degrees), and uses the mathematical law of Sines (i.e. a/sin A=b/sin B=c/sin C) twice to find the second and third sides after plugging in the knowns and solving for the unknowns. For SAS (#3), processing (e.g. block 954) uses the mathematical law of Cosines (i.e. a2=b2+c2−2bc cos A) to find the third side, and uses the mathematical law of Sines (sin A/a=sin B/b=sin C/c (derived from law of Sines above)) to find the second angle. For SSA (#4), processing (e.g. block 954) uses the mathematical law of Sines (i.e. (sin A/a=sin B/b=sin C/c) twice to get the second angle, and mathematical law of Sines (a/sin A=b/sin B=c/sin C) to get the third side. Those skilled in the art recognize other useful trigonometric functions and formulas, and similar uses of the same trigonometric functions, for MPT depending on what data is known. The data discovered and processed depends on an embodiment, what reference locations are available, and which parts are missing for MPT. MPT uses different distances (time used to determine length in TDOA) and/or angles (from AOA or TDOA technologies) for deducing a MS location confidently (e.g. MPT). Those skilled in the art recognize that having known reference locations facilitates requiring less triangular information for deducing a MS location confidently. MPT embodiments may exist for any aforementioned wave spectrums.
FIG. 11E depicts an illustration for describing various embodiments for automatically determining the location of an MS. An MS can be located relative other MSs which were located using any of a variety of location technologies, for example any of those of FIG. 9A. An MS is heterogeneously located when one of the following conditions are met:

    
    
        More than one location technology is used during travel of the MS;
        More than one location technology is used to determine a single whereabouts of the MS;
        MPT is used to locate the MS; and/or
        ADLT is used to locate the MS.

The WDR queue 22 and interactions between MSs as described below cause the MS to be heterogeneously located without special consideration to any particular location technology. While WDR 1100 contains field 1100e, field 1100d provides a standard and generic measurement for evaluating WDRs from different location technologies, without concern for the location technology used. The highest confidence entries to a WDR queue 22 are used regardless of which location technology contributed to the WDR queue 22.

    
    


LBX Configuration
FIG. 12 depicts a flowchart for describing an embodiment of MS initialization processing. Depending on the MS, there are many embodiments of processing when the MS is powered on, started, restarted, rebooted, activated, enabled, or the like. FIG. 12 describes the blocks of processing relevant to the present disclosure as part of that initialization processing. It is recommended to first understand discussions of FIG. 19 for knowing threads involved, and variables thereof. Initialization processing starts at block 1202 and continues to block 1204 where the MS Basic Input Output System (BIOS) is initialized appropriately, then to block 1206 where other character 32 processing is initialized, and then to block 1208 to see if NTP is enabled for this MS. Block 1206 may start the preferred number of listen/receive threads for feeding queue 26 and the preferred number of send threads for sending data inserted to queue 24, in particular when transmitting CK 1304 embedded in usual data 1302 and receiving CK 1304 or 1314 embedded in usual data 1302 or 1312, respectively. The number of threads started should be optimal for parallel processing across applicable channel(s). In this case, other character 32 threads are appropriately altered for embedded CK processing (sending at first opportune outbound transmission; receiving in usual inbound transmission).
If block 1208 determines NTP is enabled (as defaulted or last set by a user (i.e. persistent variable)), then block 1210 initializes NTP appropriately and processing continues to block 1212. If block 1208 determines NTP was not enabled, then processing continues to block 1212. Block 1210 embodiments are well known in the art of NTP implementations (also see block 1626). Block 1210 may cause the starting of thread(s) associated with NTP. In some embodiments, NTP use is assumed in the MS. In other embodiments, appropriate NTP use is not available to the MS. Depending on the NTP embodiment, thread(s) may pull time synchronization information, or may listen for and receive pushed time information. Resources 38 (or other MS local resource) provides interface to an MS clock for referencing, maintaining, and generating date/time stamps at the MS. After block 1210 processing, the MS clock is synchronized to NTP. Because of initialization of the MS in FIG. 12, block 1210 may rely on a connected service to initially get the startup synchronized NTP date/time. MS NTP processing will ensure the NTP enabled/disabled variable is dynamically set as is appropriate (using semaphore access) because an MS may not have continuous clock source access during travel when needed for resynchronization. If the MS does not have access to a clock source when needed, the NTP use variable is disabled. When the MS has (or again gets) access to a needed clock source, then the NTP use variable is enabled.
Thereafter, block 1212 creates shared memory to maintain data shared between processes/threads, block 1214 initializes persistent data to shared memory, block 1216 initializes any non-persistent data to shared memory (e.g. some statistics 14), block 1218 creates system queues, and block 1220 creates semaphore(s) used to ensure synchronous access by concurrent threads to data in shared memory, before continuing to block 1222. Shared memory data accesses appropriately utilize semaphore lock windows (semaphore(s) created at block 1220) for proper access. In one embodiment, block 1220 creates a single semaphore for all shared memory accesses, but this can deteriorate performance of threads accessing unrelated data. In the preferred embodiment, there is a semaphore for each reasonable set of data of shared memory so all threads are fully executing whenever possible. Persistent data is that data which maintains values during no power, for example as stored to persistent storage 60. This may include data 8 (including permissions 10, charters 12, statistics 14, service directory 16), data 20, LBX history 30, data 36, resources 38, and/or other data. Persistent data preferably includes at least the DLMV (see DLM role(s) list Variable below), ILMV (see ILM role(s) list Variable below), process variables 19xx-Max values (19xx=1902, 1912, 1922, 1932, 1942 and 1952 (see FIG. 19 discussions below)) for the last configured maximum number of threads to run in the respective process, process variables 19xx-PID values (19xx=1902, 1912, 1922, 1932, 1942 and 1952 (see FIG. 19 discussions below)) for multi-purpose of: a) holding an Operating System Process Identifier (i.e. O/S PID) for a process started; and b) whether or not the respective process was last enabled (i.e. PID>0) or disabled (i.e. PID<=0), the confidence floor value (see FIG. 14A), the WTV (see Whereabouts Timeliness Variable (see FIG. 14A)), the NTP use variable (see FIG. 14A) for whether or not NTP was last set to disabled or enabled (used at block 1208), and the Source Periodicity Time Period (SPTP) value (see FIG. 14B). There are reasonable defaults for each of the persistent data prior to the first use of MS 2 (e.g. NTP use is disabled, and only becomes enabled upon a successful enabling of NTP at least one time). Non-persistent data may include data involved in some regard to data 8 (and subsets of permissions 10, charters 12, statistics 14, service directory 16), data 20, LBX history 30, data 36, resources 38, queues, semaphores, etc. Block 1218 creates queues 22, 24, and 26. Queues 1980 and 1990 are also created there if required. Queues 1980 and 1990 are not required when NTP is in use globally by participating data processing systems. Alternate embodiments may use less queues by threads sharing a queue and having a queue entry type field for directing the queue entry to the correct thread. Alternate embodiments may have additional queues for segregating entries of a queue disclosed for best possible performance. Other embodiments incorporate queues figuratively to facilitate explanation of interfaces between processing.
All queues disclosed herein are understood to have their own internally maintained semaphore for queue accesses so that queue insertion, peeking, accessing, etc uses the internally maintained semaphore to ensure two or more concurrently executing threads do not corrupt or misuse data to any queue. This is consistent with most operating system queue interfaces wherein a thread stays blocked (preempted) after requesting a queue entry until a queue entry appears in the queue. Also, no threads will collide with another thread when inserting, peeking, or otherwise accessing the same queue. Therefore, queues are implicitly semaphore protected. Other embodiments may use an explicit semaphore protected window around queue data accessing, in which case those semaphore(s) are created at block 1220.
Thereafter, block 1222 checks for any ILM roles currently enabled for the MS (for example as determined from persistent storage of an ILM role(s) list Variable (ILMV) preferably preconfigured for the MS at first use, or configured as last configured by a user of the MS). ILM roles are maintained to the ILM role(s) list Variable (ILMV). The ILMV contains one or more entries for an ILM capability (role), each entry with a flag indicating whether it is enabled or disabled (marked=enabled, unmarked=disabled). If block 1222 determines there is at least one ILM role enabled (i.e. as marked by associated flag), then block 1224 artificially sets the corresponding 19xx-PID variables to a value greater than 0 is for indicating the process(es) are enabled, and are to be started by subsequent FIG. 12 initialization processing. The 19xx-PID will be replaced with the correct Process Identifier (PID) upon exit from block 1232 after the process is started. Preferably, every MS can have ILM capability. However, a user may want to (configure) ensure a DLM has no ILM capability enabled (e.g. or having no list present). In some embodiments, by default, every MS has an unmarked list of ILM capability maintained to the ILMV for 1) USE DLM REFERENCES and 2) USE ILM REFERENCES. USE DLM REFERENCES, when enabled (marked) in the ILMV, indicates to allow the MS of FIG. 12 processing to determine its whereabouts relative remote DLMs. USE ILM REFERENCES, when enabled (marked) in the ILMV, indicates to allow the MS of FIG. 12 processing to determine its whereabouts relative remote ILMs. Having both list items marked indicates to allow determining MS whereabouts relative mixed DLMs and ILMs. An alternative embodiment may include a USE MIXED REFERENCES option for controlling the MS of FIG. 12 processing to determine its whereabouts relative mixed DLMs and/or ILMs. Alternative embodiments will enforce any subset of these options without exposing user configurations, for example on a MS without any means for being directly located.
For any of the ILMV roles of USE DLM REFERENCES, USE ILM REFERENCES, or both, all processes 1902, 1912, 1922, 1932, 1942 and 1952 are preferably started (i.e. 1902-PID, 1912-PID, 1922-PID, 1932-PID, 1942-PID and 1952-PID are artificially set at block 1224 to cause subsequent process startup at block 1232). Characteristics of an anticipated LN-expanse (e.g. anticipated location technologies of participating MSs, MS capabilities, etc) will start a reasonable subset of those processes with at least process 1912 started. Block 1224 continues to block 1226. If block 1222 determines there are no ILMV role(s) enabled, then block processing continues to block 1226.
Block 1226 initializes an enumerated process name array for convenient processing reference of associated process specific variables described in FIG. 19, and continues to block 1228 where the first member of the set is accessed for subsequent processing. The enumerated set of process names has a prescribed start order for MS architecture 1900. Thereafter, if block 1230 determines the process identifier (i.e. 19xx-PID such that 19xx is 1902, 1912, 1922, 1932, 1942, 1952 in a loop iteration of blocks 1228 through 1234) is greater than 0 (e.g. this first iteration of 1952-PID>0 implies it is to be started here; also implies process 1952 is enabled as used in FIGS. 14A, 28, 29A and 29B), then block 1232 spawns (starts) the process (e.g. 1952) of FIG. 29A to start execution of subordinate worker thread(s) (e.g. process 1952 thread(s)) and saves the real PID (Process Identifier) to the PID variable (e.g. 1952-PID) returned by the operating system process spawn interface. Block 1232 passes as a parameter to the process of FIG. 29A which process name to start (e.g. 1952), and continues to block 1234. If block 1230 determines the current process PID variable (e.g. 1952-PID) is not greater than 0 (i.e. not to be started; also implies is disabled as used in FIGS. 14A, 28, 29A and 29B), then processing continues to block 1234. Block 1234 checks to see if all process names of the enumerated set (pattern of 19xx) have been processed (iterated) by blocks 1228 through 1234. If block 1234 determines that not all process names in the set have been processed (iterated), then processing continues back to block 1228 for handling the next process name in the set. If block 1234 determines that all process names of the enumerated set were processed, then block 1236 checks the DLMV (DLM role(s) list Variable). Blocks 1228 through 1234 iterate every process name of FIG. 19 to make sure that each is started in accordance with non-zero 19xx-PID variable values at FIG. 12 initialization.
Block 1236 checks for any DLM roles currently enabled for the MS (for example as determined from persistent storage of a DLM role(s) list Variable (DLMV) preferably preconfigured for the MS at first use if the MS contains DLM capability). DLM capability (roles), whether on-board at the MS, or determined during MS travels (see block 288), is maintained to the DLM role(s) list Variable (DLMV). The DLMV contains one or more entries for a DLM capability (role), each (role) entry with a flag indicating whether it is enabled or disabled (marked=enabled, unmarked=disabled). If block 1236 determines there is at least one DLM role enabled (i.e. as marked by associated flag), then block 1238 initializes enabled role(s) appropriately and processing continues to block 1240. Block 1238 may cause the starting of thread(s) associated with enabled DLM role(s), for DLM processing above (e.g. FIGS. 2A through 9B). Block 1238 may invoke API(s), enable flag(s), or initialize as is appropriate for DLM processing described above. Such initializations are well known in the art of prior art DLM capabilities described above. If block 1236 determines there are no DLM roles to initialize at the MS, then processing continues to block 1240. Any of the FIG. 9A technologies are eligible in the DLMV as determined to be present at the MS and/or as determined by historical contents of the WDR queue 22 (e.g. location technology field 1100e with MS ID field 1100a for this MS) and/or determined by LBX history 30. Application Programming Interfaces (APIs) may also be used to determine MS DLM capability (role(s)) for entry(s) to the DLMV.
Block 1240 completes LBX character initialization, and FIG. 12 initialization processing terminates thereafter at block 1242. Depending on what threads were started as part of block 1206, Block 1240 may startup the preferred number of listen/receive threads for feeding queue 26 and the preferred number of send threads for sending data inserted to queue 24, in particular when transmitting new data 1302 and receiving new data 1302 or 1312. The number of threads started should be optimal for parallel processing across applicable channel(s). Upon encounter of block 1242, the MS is appropriately operational, and a user at the MS of FIG. 12 processing will have the ability to use the MS and applicable user interfaces thereof.
With reference now to FIG. 29A, depicted is a flowchart for describing a preferred embodiment of a process for starting a specified number of threads in a specified thread pool. FIG. 29A is in itself an O/S process, has a process identifier (PID) after being started, will contain at least two threads of processing after being started, and is generic in being able to take on the identity of any process name passed to it (e.g. 19xx) with a parameter (e.g. from block 1232). FIG. 29A represents the parent thread of a 19xx process. The FIG. 29A process is generic for executing any of processes 19xx (i.e. 1902, 1912, 1922, 1932, 1942 and 1952) with the prescribed number of worker threads using the 19xx-Max configuration (i.e. 1902-Max, 1912-Max, 1922-Max, 1932-Max, 1942-Max and 1952-Max). FIG. 29A will stay running until it (first all of its worker thread(s)) is terminated. FIG. 29A consists of an O/S Process 19xx with at least a parent thread (main thread) and one worker thread (or number of worker threads for FIG. 19 processing as determined by 19xx-Max). The parent thread has purpose to stay running while all worker threads are running, and to own intelligence for starting worker threads and terminating the process when all worker threads are terminated. The worker threads are started subordinate to the FIG. 29A process at block 2912 using an O/S start thread interface.
A 19xx (i.e. 1902, 1912, 1922, 1932, 1942 and 1952) process starts at block 2902 and continues to block 2904 where the parameter passed for which process name to start (i.e. take on identity of) is determined (e.g. 1952). Thereafter, block 2906 creates a RAM semaphore (i.e. operating system term for a well performing Random Access Memory (RAM) semaphore with scope only within the process (i.e. to all threads of the process)). The local semaphore name preferably uses the process name prefix (e.g. 1952-Sem), and is used to synchronize threads within the process. RAM semaphores perform significantly better than global system semaphores. Alternate embodiments will have process semaphore(s) created at block 1220 in advance. Thereafter, block 2908 initializes a thread counter (e.g. 1952-Ct) to 0 for counting the number of worker threads actually started within the 19xx process (e.g. 1952), block 2910 initializes a loop variable J to 0, and block 2912 starts a worker thread (the first one upon first encounter of block 2912 for a process) in this process (e.g. process 1902 starts worker thread FIG. 20, . . . , process 1952 starts worker thread FIG. 26A—see architecture 1900 description below).
Thereafter, block 2914 increments the loop variable by 1 and block 2916 checks if all prescribed worker threads have been started. Block 2916 accesses the 19xx-Max (e.g. 1952-Max) variable from shared memory using a semaphore for determining the maximum number of threads to start in the process worker thread pool. If block 2916 determines all worker threads have been started, then processing continues to block 2918. If block 2916 determines that not all worker threads have been started for the process of FIG. 29A, then processing continues back to block 2912 for starting the next worker thread. Blocks 2912 through 2916 ensure the 19xx-Max (e.g. 1952-Max) number of worker threads are started within the process of FIG. 29A.
Block 2918 waits until all worker threads of blocks 2912 through 2916 have been started, as indicated by the worker threads themselves. Block 2918 waits until the process 19xx-Ct variable has been updated to the prescribed 19xx-Max value by the started worker threads, thereby indicating they are all up and running. When all worker threads are started (e.g. 1952-Ct=1952-Max), thereafter block 2920 waits (perhaps a very long time) until the worker thread count (e.g. 1952-Ct) has been reduced back down to 0 for indicating that all worker threads have been terminated, for example when the user gracefully powers off the MS. Block 2920 continues to block 2922 when all worker threads have been terminated. Block 2922 sets the shared memory variable for the 19xx process (e.g. 1952-PID) to 0 using a semaphore for indicating that the 19xx (e.g. 1952) process is disabled and no longer running. Thereafter, the 19xx process terminates at block 2924. Waiting at blocks 2918 and 2920 are accomplished in a variety of well known methods:

    
    
        Detect signal sent to process by last started (or terminated) worker thread that thread count is now MAX (or 0); or
        Loop on checking the thread count with sleep time between checks, wherein within the loop there is a check of the current count (use RAM semaphore to access), and processing exits the loop (and block) when the count has reached the sought value; or
        Use of a semaphore for a count variable which causes the parent thread of FIG. 29A to stay blocked prior to the count reaching its value, and causes the parent thread to become cleared (will leave wait block) when the count reaches its sought value.
    
    


Starting threads of processing in FIG. 29A has been presented from a software perspective, but there are hardware/firmware thread embodiments which may be started appropriately to accomplish the same functionality. If the MS operating system does not have an interface for returning the PID at block 1232, then FIG. 29A can have a block (e.g. 2905) used to determine its own PID for setting the 19xx-PID variable.
FIGS. 13A through 13C depict an illustration of data processing system wireless data transmissions over some wave spectrum. Embodiments may exist for any of the aforementioned wave spectrums, and data carried thereon may or may not be encrypted (e.g. encrypted WDR information). With reference now to FIG. 13A, a MS, for example a DLM 200a, sends/broadcasts data such as a data 1302 in a manner well known to those skilled in the art, for example other character 32 processing data. When a Communications Key (CK) 1304 is embedded within data 1302, data 1302 is considered usual communications data (e.g. protocol, voice, or any other data over conventional forward channel, reverse channel, voice data channel, data transmission channel, or any other prior art use channel) which has been altered to contain CK 1304. Data 1302 contains a CK 1304 which can be detected, parsed, and processed when received by another MS or other data processing system in the vicinity of the MS (e.g. DLM 200a) as determined by the maximum range of transmission 1306. CK 1304 permits “piggy-backing” on current transmissions to accomplish new functionality as disclosed herein. Transmission from the MS radiate out from it in all directions in a manner consistent with the wave spectrum used. The radius 1308 represents a first range of signal reception from the MS 200a, perhaps by another MS (not shown). The radius 1310 represents a second range of signal reception from the MS 200a, perhaps by another MS (not shown). The radius 1311 represents a third range of signal reception from the MS 200a, perhaps by another MS (not shown). The radius 1306 represents a last and maximum range of signal reception from the MS 200a, perhaps by another MS (not shown). MS design for maximum radius 1306 may take into account the desired maximum range versus acceptable wave spectrum exposure health risks for the user of the MS. The time of transmission from MS 200a to radius 1308 is less than times of transmission from MS 200a to radiuses 1310, 1311, or 1306. The time of transmission from MS 200a to radius 1310 is less than times of transmission from MS 200a to radiuses 1311 or 1306. The time of transmission from MS 200a to radius 1311 is less than time of transmission from MS 200a to radius 1306.
In another embodiment, data 1302 contains a Communications Key (CK) 1304 because data 1302 is new transmitted data in accordance with the present disclosure. Data 1302 purpose is for carrying CK 1304 information for being detected, parsed, and processed when received by another MS or other data processing system in the vicinity of the MS (e.g. DLM 200a) as determined by the maximum range of transmission 1306.
With reference now to FIG. 13B, a MS, for example an ILM 1000k, sends/broadcasts data such as a data 1302 in a manner well known to those skilled in the art. Data 1302 and CK 1304 are as described above for FIG. 13A. Data 1302 or CK 1304 can be detected, parsed, and processed when received by another MS or other data processing system in the vicinity of the MS (e.g. ILM 1000k) as determined by the maximum range of transmission 1306. Transmission from the MS radiate out from it in all directions in a manner consistent with the wave spectrum used, and as described above for FIG. 13A.
With reference now to FIG. 13C, a service or set of services sends/broadcasts data such as a data packet 1312 in a manner well known to those skilled in the art, for example to service other character 32 processing. When a Communications Key (CK) 1314 is embedded within data 1312, data 1312 is considered usual communications data (e.g. protocol, voice, or any other data over conventional forward channel, reverse channel, voice data channel, data transmission channel, or any other prior art use channel) which has been altered to contain CK 1314. Data 1312 contains a CK 1314 which can be detected, parsed, and processed when received by an MS or other data processing system in the vicinity of the service(s) as determined by the maximum range of transmission 1316. CK 1314 permits “piggy-backing” on current transmissions to accomplish new functionality as disclosed herein. Transmissions radiate out in all directions in a manner consistent with the wave spectrum used, and data carried thereon may or may not be encrypted (e.g. encrypted WDR information). The radius 1318 represents a first range of signal reception from the service (e.g. antenna thereof), perhaps by a MS (not shown). The radius 1320 represents a second range of signal reception from the service (e.g. antenna thereof), perhaps by a MS (not shown). The radius 1322 represents a third range of signal reception from the service (e.g. antenna thereof), perhaps by a MS (not shown). The radius 1316 represents a last and maximum range of signal reception from the service (e.g. antenna thereof), perhaps by a MS (not shown). The time of transmission from service to radius 1318 is less than times of transmission from service to radiuses 1320, 1322, or 1316. The time of transmission from service to radius 1320 is less than times of transmission from service to radiuses 1322 or 1316. The time of transmission from service to radius 1322 is less than time of transmission from service to radius 1316. In another embodiment, data 1312 contains a Communications Key (CK) 1314 because data 1312 is new transmitted data in accordance with the present disclosure. Data 1312 purpose is for carrying CK 1314 information for being detected, parsed, and processed when received by another MS or data processing system in the vicinity of the service(s) as determined by the maximum range of transmission.
In some embodiments, data 1302 and 1312 are prior art wireless data transmission packets with the exception of embedding a detectable CK 1304 and/or CK 1314, respectively. Usual data communications of MSs are altered to additionally contain the CK so data processing systems in the vicinity can detect, parse, and process the CK. Appropriate send and/or broadcast channel processing is used. In other embodiments, data 1302 and 1312 are new broadcast wireless data transmission packets for containing CK 1304 and CK 1314, respectively. A MS may use send queue 24 for sending/broadcasting packets to data processing systems in the vicinity, and may use the receive queue 26 for receiving packets from other data processing systems in the vicinity. Contents of CKs (Communications Keys) depend on which LBX features are in use and the functionality intended.
In the case of “piggybacking” on usual communications, receive queue 26 insertion processing simply listens for the usual data and when detecting CK presence, inserts CK information appropriately to queue 26 for subsequent processing. Also in the case of “piggybacking” on usual communications, send queue 24 retrieval processing simply retrieves CK information from the queue and embeds it in an outgoing data 1302 at first opportunity. In the case of new data communications, receive queue 26 insertion processing simply listens for the new data containing CK information, and inserts CK information appropriately to queue 26 for subsequent processing. Also in the case of new data communications, send queue 24 retrieval processing simply retrieves CK information from the queue and transmits CK information as new data.
LBX: LN-EXPANSE Configuration
FIG. 14A depicts a flowchart for describing a preferred embodiment of MS LBX configuration processing. FIG. 14 is of Self Management Processing code 18. MS LBX configuration begins at block 1402 upon user action to start the user interface and continues to block 1404 where user interface objects are initialized for configurations described below with current settings that are reasonable for display to available user interface real estate. Thereafter, applicable settings are presented to the user at block 1406 with options. Block 1406 preferably presents to the user at least whether or not DLM capability is enabled (i.e. MS to behave as a DLM=at least one role of DLMV enabled), whether or not ILM capability is enabled (i.e. MS to behave as an ILM=at least one role of ILMV enabled), and/or whether or not this MS should participate in the LN-expanse as a source location for other MSs (e.g. process 1902 and/or 1942 enabled). Alternative embodiments will further present more or less information for each of the settings, or present information associated with other FIG. 14 blocks of processing. Other embodiments will not configure DLM settings for an MS lacking DLM capability (or when all DLMV roles disabled). Other embodiments will not configure ILM settings when DLM capability is present. Block 1406 continues to block 1408 where processing waits for user action in response to options. Block 1408 continues to block 1410 when a user action is detected. If block 1410 determines the user selected to configure DLM capability (i.e. DLMV role(s)), then the user configures DLM role(s) at block 1412 and processing continues back to block 1406. Block 1412 processing is described by FIG. 15A. If block 1410 determines the user did not select to configure DLM capability (i.e. DLMV role(s)), then processing continues to block 1414. If block 1414 determines the user selected to configure ILM capability (i.e. ILMV role(s)), then the user configures ILM role(s) at block 1416 and processing continues back to block 1406. Block 1416 processing is described by FIG. 15B. If block 1414 determines the user did not select to configure ILM capability (i.e. ILMV role(s)), then processing continues to block 1418. If block 1418 determines the user selected to configure NTP use, then the user configures NTP use at block 1420 and processing continues back to block 1406. Block 1420 processing is described by FIG. 16. If block 1418 determines the user did not select to configure NTP use, then processing continues to block 1422.
If block 1422 determines the user selected to maintain the WDR queue, then the user maintains WDRs at block 1424 and processing continues back to block 1406. Block 1424 processing is described by FIG. 17. Blocks 1412, 1416, 1420 and 1424 are understood to be delimited by appropriate semaphore control to avoid multi-threaded access problems. If block 1422 determines the user did not select to maintain the WDR queue, then processing continues to block 1426. If block 1426 determines the user selected to configure the confidence floor value, then block 1428 prepares parameters for invoking a Configure Value procedure (parameters for reference (address) of value to configure; and validity criteria of value to configure), and the Configure Value procedure of FIG. 18 is invoked at block 1430 with the two (2) parameters. Thereafter, processing continues back to block 1406. Blocks 1428 and 1430 are understood to be delimited by appropriate semaphore control when modifying the confidence floor value since other threads can access the floor value.
The confidence floor value is the minimum acceptable confidence value of any field 1100d (for example as checked by block 276). No WDR with a field 1100d less than the confidence floor value should be used to describe MS whereabouts. In an alternative embodiment, the confidence floor value is enforced as the same value across an LN-expanse with no user control to modify it. One embodiment of FIG. 14 does not permit user control over a minimum acceptable confidence floor value. Various embodiments will default the floor value. Block 1812 enforces an appropriate value in accordance with the confidence value range implemented (e.g. value from 1 to 100). Since the confidence of whereabouts is likely dependent on applications in use at the MS, the preferred embodiment is to permit user configuration of the acceptable whereabouts confidence for the MS. A new confidence floor value can be put to use at next thread(s) startup, or can be used instantly with the modification made, depending on the embodiment. The confidence floor value can be used to filter out WDRs prior to inserting to queue 22, filter out WDRs when retrieving from queue 22, filter out WDR information when listening on channel(s) prior to inserting to queue 26, and/or used in accessing queue 22 for any reason (depending on embodiments). While confidence is validated on both inserts and queries (retrievals/peeks), one or the other validation is fine (preferably on inserts). It is preferred that executable code incorporate checks where applicable since the confidence floor value can be changed after queue 22 is in use. Also, various present disclosure embodiments may maintain all confidences to queue 22, or a particular set of acceptable confidences.
If block 1426 determines the user did not select to configure the confidence floor value, then processing continues to block 1432. If block 1432 determines the user selected to configure the Whereabouts Timeliness Variable (WTV), then block 1434 prepares parameters for invoking the Configure Value procedure (parameters for reference (address) of value to configure; and validity criteria of value to configure), and the Configure Value procedure of FIG. 18 is invoked at block 1430 with the two (2) parameters. Thereafter, processing continues back to block 1406. Blocks 1434 and 1430 are understood to be delimited by appropriate semaphore control when modifying the WTV since other threads can access the WTV.
A critical configuration for MS whereabouts processing is whereabouts timeliness. Whereabouts timeliness is how often (how timely) an MS should have accurate whereabouts. Whereabouts timeliness is dependent on how often the MS is updated with whereabouts information, what technologies are available or are in the vicinity, how capable the MS is of maintaining whereabouts, processing speed(s), transmission speed(s), known MS or LN-expanse design constraints, and perhaps other factors. In some embodiments, whereabouts timeliness is as soon as possible. That is, MS whereabouts is updated whenever possible as often as possible. In fact, the present disclosure provides an excellent system and methodology to accomplish that by leveraging location technologies whenever and wherever possible. However, there should be balance when considering less capable processing of a MS to prevent hogging CPU cycles from other applications at the MS. In other embodiments, a hard-coded or preconfigured time interval is used for keeping an MS informed of its whereabouts in a timely manner. For example, the MS should know its own whereabouts at least every second, or at least every 5 seconds, or at least every minute, etc. Whereabouts timeliness is critical depending on the applications in use at the MS. For example, if MS whereabouts is updated once at the MS every 5 minutes during high speeds of travel when using navigation, the user has a high risk of missing a turn during travel in downtown cities where timely decisions for turns are required. On the other hand, if MS whereabouts is updated every 5 seconds, and an application only requires an update accuracy to once per minute, then the MS may be excessively processing.
In some embodiments, there is a Whereabouts Timeliness Variable (WTV) configured at the MS (blocks 1432, 1434, 1430). Whether it is user configured, system configured, or preset in a system, the WTV is used to:

    
    
        Define the maximum period of time for MS whereabouts to become stale at any particular time;
        Cause the MS to seek its whereabouts if whereabouts information is not up to date in accordance with the WTV; and
        Prevent keeping the MS too busy with keeping abreast of its own whereabouts.

In another embodiment, the WTV is automatically adjusted based on successes or failures of automatically locating the MS. As the MS successfully maintains timely whereabouts, the WTV is maintained consistent with the user configured, system configured, or preset value, or in accordance with active applications in use at the time. However, as the MS fails in maintaining timely whereabouts, the WTV is automatically adjusted (e.g. to longer periods of time to prevent unnecessary wasting of power and/or CPU resources). Later, as whereabouts become readily available, the WTV can be automatically adjusted back to the optimal value. In an emergency situation, the user always has the ability to force the MS to determine its own whereabouts anyway. (Blocks 856 and 862 through 878, in light of a WDR request and WDR response described for architecture 1900). In embodiments where the WTV is adjusted in accordance with applications in use at the time, the most demanding requirement of any application started is maintained to the WTV. Preferably, each application of the MS initializes to an API of the MS with a parameter of its WTV requirements. If the requirement is more timely than the current value, then the more timely value is used. The WTV can be put to use at next thread(s) startup, or can be used instantly with the modification made, depending on the embodiment.

    
    


If block 1432 determines the user did not select to configure the WTV, then processing continues to block 1436. If block 1436 determines the user selected to configure the maximum number of threads in a 19xx process (see 19xx-Max variable in FIG. 19 discussions), then block 1438 interfaces with the user until a valid 19xx-max variable is selected, and processing continues to block 1440. If block 1440 determines the 19xx process is already running (i.e. 19xx-PID>0 implies it is enabled), then an error is provided to the user at block 1442, and processing continues back to block 1406. Preferably, block 1442 does not continue back to block 1406 until the user acknowledges the error (e.g. with a user action). If block 1440 determines the user selected 19xx process (process 1902, process 1912, process 1922, process 1932, process 1942, or process 1952) is not already running (i.e. 19xx-PID=0 implies it is disabled), then block 1444 prepares parameters for invoking the Configure Value procedure (parameters for reference (address) of 19xx-Max value to configure; and validity criteria of value to configure), and the Configure Value procedure of FIG. 18 is invoked at block 1430 with the two (2) parameters. Thereafter, processing continues back to block 1406. Blocks 1438, 1440, 1444 and 1430 are understood to be delimited by appropriate semaphore control when modifying the 19xx-Max value since other threads can access it. The 19xx-Max value should not be modified while the 19xx process is running because the number of threads to terminate may be changed prior to terminating. An alternate embodiment of modifying a process number of threads will dynamically modify the number of threads in anticipation of required processing.
If block 1436 determines the user did not select to configure a process thread maximum (19xx-Max), then block 1446 checks to see if the user selected to (toggle) disable or enable a particular process (i.e. a 19xx process of FIG. 19). If block 1446 determines the user did select to toggle enabling/disabling a particular FIG. 19 process, then block 1448 interfaces with the user until a valid 19xx process name is selected, and processing continues to block 1450. If block 1450 determines the 19xx process is already running (i.e. 19xx-PID>0 implies it is enabled), then block 1454 prepares parameters (just as does block 2812). Thereafter, block 1456 invokes FIG. 29B processing (just as does block 2814). Processing then continues back to block 1406. If block 1450 determines the 19xx process is not running (i.e. 19xx-PID=0 implies it is disabled), then block 1452 invokes FIG. 29A processing (just as does block 1232). Processing then continues back to block 1406. Block 1456 does not continue back to block 1406 until the process is completely terminated. Blocks 1448, 1450, 1452, 1454 and 1456 are understood to be delimited by appropriate semaphore control.
Preferred embodiments of blocks 1446 and 1448 use convenient names of processes being started or terminated, rather than convenient brief process names such as 1902, 1912, 1922, 1932, 1942, or 1952 used in flowcharts. In some embodiments, the long readable name is used, such as whereabouts broadcast process (1902), whereabouts collection process (1912), whereabouts supervisor process (1922), timing determination process (1932), WDR request process (1942), and whereabouts determination process (1952). For example, the user may know that the whereabouts supervisor process enabled/disabled indicates whether or not to have whereabouts timeliness monitored in real time. Enabling the whereabouts supervisor process enables monitoring for the WTV in real time, and disabling the whereabouts supervisor process disables monitoring the WTV in real time.
In another embodiment of blocks 1446 and 1448, a completely new name or description may be provided to any of the processes to facilitate user interface usability. For example, a new name Peer Location Source Variable (PLSV) can be associated to the whereabouts broadcast process 1902 and/or 1942. PLSV may be easier to remember. If the PLSV was toggled to disabled, the whereabouts broadcast process 1902 and/or 1942 terminates. If the PLSV was toggled to enabled, the whereabouts broadcast process 1902 and/or 1942 is started. It may be easier to remember that the PLSV enables/disables whether or not to allow this MS to be a location source for other MSs in an LN-expanse.
In other embodiments, a useful name (e.g. PLSV) represents starting and terminating any subset of 19xx processes (a plurality (e.g. 1902 and 1942)) for simplicity. In yet other embodiments, FIG. 14A/14B can be used to start or terminate worker thread(s) in any process, for example to throttle up more worker threads in a process, or to throttle down for less worker threads in a process, perhaps modifying thread instances to accommodate the number of channels for communications, or for the desired performance. There are many embodiments for fine tuning the architecture 1900 for optimal peer to peer interaction. In yet other embodiments, toggling may not be used. There may be individual options available at block 1408 for setting any data of this disclosure. Similarly, the 19xx-Max variables may be modified via individual user friendly names and/or as a group of 19xx-Max variables.
Referring back to block 1446, if it is determined the user did not select to toggle for enabling/disabling process(es), then processing continues to block 1458. If block 1458 determines the user selected to exit FIG. 14A/14B configuration processing, then block 1460 terminates the user interface appropriately and processing terminates at block 1462. If block 1458 determines the user did not select to exit the user interface, then processing continues to block 1466 of FIG. 14B by way of off page connector 1464.
With reference now to FIG. 14B, depicted is a continued portion flowchart of FIG. 14A for describing a preferred embodiment of MS LBX configuration processing. If block 1466 determines the user selected to configure the Source Periodicity Time Period (SPTP) value, then block 1468 prepares parameters for invoking the Configure Value procedure (parameters for reference (address) of value to configure; and validity criteria of value to configure), and the Configure Value procedure of FIG. 18 is invoked at block 1470 with the two (2) parameters. Thereafter, processing continues back to block 1406 by way of off page connector 1498. Blocks 1468 and 1470 are understood to be delimited by appropriate semaphore control when modifying the SPTP value since other threads can access it. The SPTP configures the time period between broadcasts by thread(s) 1902, for example 5 seconds. Some embodiments do not permit configuration of the SPTP.
If block 1466 determines the user did not select to configure the SPTP value, then processing continues to block 1472. If block 1472 determines the user selected to configure service propagation, then the user configures service propagation at block 1474 and processing continues back to block 1406 by way of off page connector 1498. If block 1472 determines the user did not select to configure service propagation, then processing continues to block 1476.
If block 1476 determines the user selected to configure permissions 10, then the user configures permissions at block 1478 and processing continues back to block 1406 by way of off page connector 1498. If block 1476 determines the user did not select to configure permissions 10, then processing continues to block 1480. If block 1480 determines the user selected to configure charters 12, then the user configures charters 12 at block 1482 and processing continues back to block 1406 by way of off page connector 1498. If block 1480 determines the user did not select to configure charters 12, then processing continues to block 1484. If block 1484 determines the user selected to configure statistics 14, then the user configures statistics 14 at block 1486 and processing continues back to block 1406 by way of off page connector 1498. If block 1484 determines the user did not select to configure statistics 14, then processing continues to block 1488. If block 1488 determines the user selected to configure service informant code 28, then the user configures code 28 at block 1490 and processing continues back to block 1406 by way of off page connector 1498. If block 1488 determines the user did not select to configure code 28, then processing continues to block 1492. If block 1492 determines the user selected to maintain LBX history 30, then the user maintains LBX history at block 1494 and processing continues back to block 1406 by way of off page connector 1498. If block 1492 determines the user did not select to maintain LBX history 30, then processing continues to block 1496.
Block 1496 handles other user interface actions leaving block 1408, and processing continues back to block 1406 by way of off page connector 1498.
Details of blocks 1474, 1478, 1482, 1486, 1490, 1494, and perhaps more detail to block 1496, are described with other flowcharts. Appropriate semaphores are requested at the beginning of block processing, and released at the end of block processing, for thread safe access to applicable data at risk of being accessed by another thread of processing at the same time of configuration. In some embodiments, a user/administrator with secure privileges to the MS has ability to perform any subset of configurations of FIGS. 14A and 14B processing, while a general user may not. Any subset of FIG. 14 configuration may appear in alternative embodiments, with or without authenticated administrator access to perform configuration.
FIG. 15A depicts a flowchart for describing a preferred embodiment of DLM role configuration processing of block 1412. Processing begins at block 1502 and continues to block 1504 which accesses current DLMV settings before continuing to block 1506. If there were no DLMV entries (list empty) as determined by block 1506, then block 1508 provides an error to the user and processing terminates at block 1518. The DLMV may be empty when the MS has no local DLM capability and there hasn't yet been any detected DLM capability, for example as evidenced by WDRs inserted to queue 22. Preferably, the error presented at block 1508 requires the user to acknowledge the error (e.g. with a user action) before block 1508 continues to block 1518. If block 1506 determines at least one entry (role) is present in the DLMV, then the current DLMV setting(s) are saved at block 1510, the manage list processing procedure of FIG. 15C is invoked at block 1512 with the DLMV as a reference (address) parameter, and processing continues to block 1514.
Block 1514 determines if there were any changes to the DLMV from FIG. 15C processing by comparing the DLMV after block 1512 with the DLMV saved at block 1510. If there were changes via FIG. 15C processing, such as a role which was enabled prior to block 1512 which is now disabled, or such as a role which was disabled prior to block 1512 which is now enabled, then block 1514 continues to block 1516 which handles the DLMV changes appropriately. Block 1516 continues to block 1518 which terminates FIG. 15A processing. If block 1514 determines there were no changes via block 1512, then processing terminates at block 1518.
Block 1516 enables newly enabled role(s) as does block 1238 described for FIG. 12. Block 1516 disables newly disabled role(s) as does block 2804 described for FIG. 28.
FIG. 15B depicts a flowchart for describing a preferred embodiment of ILM role configuration processing of block 1416. Processing begins at block 1522 and continues to block 1524 which accesses current ILMV settings before continuing to block 1526. If there were no ILMV entries (list empty) as determined by block 1526, then block 1528 provides an error to the user and processing terminates at block 1538. The ILMV may be empty when the MS is not meant to have ILM capability. Preferably, the error presented at block 1528 requires the user to acknowledge the error before block 1528 continues to block 1538. If block 1526 determines at least one entry (role) is present in the ILMV, then the current ILMV setting(s) are saved at block 1530, the manage list processing procedure of FIG. 15C is invoked with a reference (address) parameter of the ILMV at block 1532, and processing continues to block 1534.
Block 1534 determines if there were any changes to the ILMV from FIG. 15C processing by comparing the ILMV after block 1532 with the ILMV saved at block 1530. If there were changes via FIG. 15C processing, such as a role which was enabled prior to block 1532 which is now disabled, or such as a role which was disabled prior to block 1532 which is now enabled, then block 1534 continues to block 1536 which handles the ILMV changes appropriately. Block 1536 continues to block 1538 which terminates FIG. 15B processing. If block 1534 determines there were no changes via block 1532, then processing terminates at block 1538.
Block 1536 enables newly enabled role(s) as does blocks 1224 through 1234 described for FIG. 12. Block 1536 disables newly disabled role(s) as does blocks 2806 through 2816 described for FIG. 28.
FIG. 15C depicts a flowchart for describing a preferred embodiment of a procedure for Manage List processing. Processing starts at block 1552 and continues to block 1554. Block 1554 presents the list (DLM capability if arrived to by way of FIG. 15A; ILM capability if arrived to by way of FIG. 15B) to the user, as passed to FIG. 15C processing with the reference parameter by the invoker, with which list items are marked (enabled) and which are unmarked (disabled) along with options, before continuing to block 1556 for awaiting user action. Block 1554 highlights currently enabled roles, and ensures disabled roles are not highlighted in the presented list. When a user action is detected at block 1556, thereafter, block 1558 checks if a list entry was enabled (marked) by the user, in which case block 1560 marks the list item as enabled, saves it to the list (e.g. DLMV or ILMV), and processing continues back to block 1554 to refresh the list interface. If block 1558 determines the user did not respond with an enable action, then block 1562 checks for a disable action. If block 1562 determines the user wanted to disable a list entry, then block 1564 marks (actually unmarks it) the list item as disabled, saves it to the list (e.g. DLMV or ILMV), and processing continues back to block 1554. If block 1562 determines the user did not want to disable a list item, then block 1566 checks if the user wanted to exit FIG. 15C processing. If block 1566 determines the user did not select to exit list processing, then processing continues to block 1568 where other user interface actions are appropriately handled and then processing continues back to block 1554. If block 1566 determines the user did select to exit manage list processing, then FIG. 15C processing appropriately returns to the caller at block 1570.
FIG. 15C interfaces with the user for desired DLMV (via FIG. 15A) or ILMV (via FIG. 15B) configurations. In some embodiments, it makes sense to have user control over enabling or disabling DLM and/or ILM capability (roles) to the MS, for example for software or hardware testing.
FIG. 16 depicts a flowchart for describing a preferred embodiment of NTP use configuration processing of block 1420. Processing starts at block 1602 and continues to block 1604 where the current NTP use setting is accessed. Thereafter, block 1606 presents the current NTP use setting to its value of enabled or disabled along with options, before continuing to block 1608 for awaiting user action. When a user action is detected at block 1608, block 1610 checks if the NTP use setting was disabled at block 1608, in which case block 1612 terminates NTP use appropriately, block 1614 sets (and saves) the NTP use setting to disabled, and processing continues back to block 1606 to refresh the interface. Block 1612 disables NTP as does block 2828.
If block 1610 determines the user did not respond for disabling NTP, then block 1616 checks for a toggle to being enabled. If block 1616 determines the user wanted to enable NTP use, then block 1618 accesses known NTP server address(es) (e.g. ip addresses preconfigured to the MS, or set with another user interface at the MS), and pings each one, if necessary, at block 1620 with a timeout. As soon as one NTP server is determined to be reachable, block 1620 continues to block 1622. If no NTP server was reachable, then the timeout will have expired for each one tried at block 1620 for continuing to block 1622. Block 1622 determines if at least one NTP server was reachable at block 1620. If block 1622 determines no NTP server was reachable, then an error is presented to the user at block 1624 and processing continues back to block 1606. Preferably, the error presented at block 1624 requires the user to acknowledge the error before block 1624 continues to block 1606. If block 1622 determines that at least one NTP server was reachable, then block 1626 initializes NTP use appropriately, block 1628 sets the NTP use setting to enabled (and saves), and processing continues back to block 1606. Block 1626 enables NTP as does block 1210.
Referring back to block 1616, if it is determined the user did not want to enable NTP use, then processing continues to block 1630 where it is checked if the user wanted to exit FIG. 16 processing. If block 1630 determines the user did not select to exit FIG. 16 processing, then processing continues to block 1632 where other user interface actions leaving block 1608 are appropriately handled, and then processing continues back to block 1606. If block 1630 determines the user did select to exit processing, then FIG. 16 processing terminates at block 1634.
FIG. 17 depicts a flowchart for describing a preferred embodiment of WDR maintenance processing of block 1424. Processing starts at block 1702 and continues to block 1704 where it is determined if there are any WDRs of queue 22. If block 1704 determines there are no WDRs for processing, then block 1706 presents an error to the user and processing continues to block 1732 where FIG. 17 processing terminates. Preferably, the error presented at block 1706 requires the user to acknowledge the error before block 1706 continues to block 1732. If block 1704 determines there is at least one WDR, then processing continues to block 1708 where the current contents of WDR queue 22 is appropriately presented to the user (in a scrollable list if necessary). Thereafter, block 1710 awaits user action. When a user action is detected at block 1710, block 1712 checks if the user selected to delete a WDR from queue 22, in which case block 1714 discards the selected WDR, and processing continues back to block 1708 for a refreshed presentation of queue 22. If block 1712 determines the user did not select to delete a WDR, then block 1716 checks if the user selected to modify a WDR. If block 1716 determines the user wanted to modify a WDR of queue 22, then block 1718 interfaces with the user for validated WDR changes before continuing back to block 1708. If block 1716 determines the user did not select to modify a WDR, then block 1720 checks if the user selected to add a WDR to queue 22. If block 1720 determines the user selected to add a WDR (for example, to manually configure MS whereabouts), then block 1722 interfaces with the user for a validated WDR to add to queue 22 before continuing back to block 1708. If block 1720 determines the user did not select to add a WDR, then block 1724 checks if the user selected to view detailed contents of a WDR, perhaps because WDRs are presented in an abbreviated form at block 1708. If it is determined at block 1724 the user did select to view details of a WDR, then block 1726 formats the WDR in detail form, presents it to the user, and waits for the user to exit the view of the WDR before continuing back to block 1708. If block 1724 determines the user did not select to view a WDR in detail, then block 1728 checks if the user wanted to exit FIG. 17 processing. If block 1728 determines the user did not select to exit FIG. 17 processing, then processing continues to block 1730 where other user interface actions leaving block 1710 are appropriately handled, and then processing continues back to block 1708. If block 1728 determines the user did select to exit processing, then FIG. 17 processing terminates at block 1732.
There are many embodiments for maintaining WDRs of queue 22. In some embodiments, FIG. 17 (i.e. block 1424) processing is only provided for debug of an MS. In a single instance WDR embodiment, block 1708 presents the one and only WDR which is used to keep current MS whereabouts whenever possible. Other embodiments incorporate any subset of FIG. 17 processing.
FIG. 18 depicts a flowchart for describing a preferred embodiment of a procedure for variable configuration processing, namely the Configure Value procedure, for example for processing of block 1430. Processing starts at block 1802 and continues to block 1804 where parameters passed by the invoker of FIG. 18 are determined, namely the reference (address) of the value for configuration to be modified, and the validity criteria for what makes the value valid. Passing the value by reference simply means that FIG. 18 has the ability to directly change the value, regardless of where it is located. In some embodiments, the parameter is an address to a memory location for the value. In another embodiment, the value is maintained in a database or some persistent storage, and FIG. 18 is passed enough information to know how to permanently affect/change the value.
Block 1804 continues to block 1806 where the current value passed is presented to the user (e.g. confidence floor value), and then to block 1808 for awaiting user action. When a user action is detected at block 1808, block 1810 checks if the user selected to modify the value, in which case block 1812 interfaces with the user for a validated value using the validity criteria parameter before continuing back to block 1806. Validity criteria may take the form of a value range, value type, set of allowable values, or any other criteria for what makes the value a valid one.
If block 1810 determines the user did not select to modify the value, then block 1814 checks if the user wanted to exit FIG. 18 processing. If block 1814 determines the user did not select to exit FIG. 18 processing, then processing continues to block 1816 where other user interface actions leaving block 1808 are appropriately handled, and then processing continues back to block 1806. If block 1814 determines the user did select to exit processing, then FIG. 18 processing appropriately returns to the caller at block 1818.
LBX: LN-EXPANSE Interoperability
FIG. 19 depicts an illustration for describing a preferred embodiment multithreaded architecture of peer interaction processing of a MS in accordance with the present disclosure. MS architecture 1900 preferably includes a set of Operating System (O/S) processes (i.e. O/S terminology “process” with O/S terminology “thread” or “threads (i.e. thread(s))), including a whereabouts broadcast process 1902, a whereabouts collection process 1912, a whereabouts supervisor process 1922, a timing determination process 1932, a WDR request process 1942, and a whereabouts determination process 1952. Further included are queues for interaction of processing, and process associated variables to facilitate processing. All of the FIG. 19 processes are of PIP code 6. There is preferably a plurality (pool) of worker threads within each of said 19xx processes (i.e. 1902, 1912, 1922, 1932, 1942 and 1952) for high performance asynchronous processing. Each 19xx process (i.e. 1902, 1912, 1922, 1932, 1942 and 1952) preferably has at least two (2) threads:
1) “parent thread”; and
2) “worker thread”.
A parent thread (FIG. 29A) is the main process thread for:


    
    
        starting the particular process;
        starting the correct number of worker thread(s) of that particular process;
        staying alive while all worker threads are busy processing; and
        properly terminating the process when worker threads are terminated.

The parent thread is indeed the parent for governing behavior of threads at the process whole level. Every process has a name for convenient reference, such as the names 1902, 1912, 1922, 1932, 1942 and 1952. Of course, these names may take on the associated human readable forms of whereabouts broadcast process, whereabouts collection process, whereabouts supervisor process, timing determination process, WDR request process, and whereabouts determination process, respectively. For brevity, the names used herein are by the process label of FIG. 19 in a form 19xx. There must be at least one worker thread in a process. Worker thread(s) are described with a flowchart as follows:

        1902—FIG. 20;
        1912—FIG. 21;
        1922—FIG. 22;
        1932—FIG. 23;
        1942—FIG. 25; and
        1952—FIG. 26A.

Threads of architecture MS are presented from a software perspective, but there are applicable hardware/firmware process thread embodiments accomplished for the same functionality. In fact, hardware/firmware embodiments are preferred when it is known that processing is mature (i.e. stable) to provide the fastest possible performance. Architecture 1900 processing is best achieved at the highest possible performance speeds for optimal wireless communications processing. There are two (2) types of processes for describing the types of worker threads:

    
    


1) “Slave to Queue”; and
2) “Slave to Timer”.
A 19xx process is a slave to queue process when its worker thread(s) are driven by feeding from a queue of architecture 1900. A slave to queue process stays “blocked” (O/S terminology “blocked”=preempted) on a queue entry retrieval interface until the sought queue item is inserted to the queue. The queue entry retrieval interface becomes “cleared” (O/S terminology “cleared”=clear to run) when the sought queue entry is retrieved from the queue by a thread. These terms (blocked and cleared) are analogous to a semaphore causing a thread to be blocked, and a thread to be cleared, as is well known in the art. Queues have semaphore control to ensure no more than one thread becomes clear at a time for a single queue entry retrieved (as done in an O/S). One thread sees a particular queue entry, but many threads can feed off the same queue to do the same work concurrently. Slave to queue type of processes are 1912, 1932, 1942 and 1952. A slave to queue process is properly terminated by inserting a special termination queue entry for each worker thread to terminate itself after queue entry retrieval.
A 19xx process is a slave to timer process when its worker thread(s) are driven by a timer for peeking a queue of architecture 1900. A timer provides the period of time for a worker thread to sleep during a looped iteration of checking a queue for a sought entry (without removing the entry from the queue). Slave to timer threads periodically peek a queue, and based on what is found, will process appropriately. A queue peek does not alter the peeked queue. The queue peek interface is semaphore protected for preventing peeking at an un-opportune time (e.g. while thread inserting or retrieving from queue). Queue interfaces ensure one thread is acting on a queue with a queue interface at any particular time. Slave to timer type of processes are 1902 and 1922. A slave to timer process is properly terminated by inserting a special termination queue entry for each worker thread to terminate itself by queue entry peek.
Block 2812 knows the type of 19xx process for preparing the process type parameter for invocation of FIG. 29B at block 2814. The type of process has slightly different termination requirements because of the worker thread(s) processing type. Alternate embodiments of slave to timer processes will make them slave to queue processes by simply feeding off Thread Request (TR) queue 1980 for driving a worker thread when to execute (and when to terminate). New timer(s) would insert timely queue entries to queue 1980, and processes 1902 and 1922 would retrieve from the queue (FIG. 24A record 2400). The queue entries would become available to queue 1980 when it is time for a particular worker thread to execute. Worker threads of processes 1902 and 1922 could retrieve, and stay blocked on, queue 1980 until an entry was inserted by a timer for enabling a worker thread (field 2400a set to 1902 or 1912). TR queue 1980 is useful for starting any threads of architecture 1900 in a slave to queue manner. This may be a cleaner architecture for all thread pools to operate the same way (slave to queue). Nevertheless, the two thread pool methods are implemented.
Each 19xx process has at least four (4) variables for describing present disclosure processing:

    
    
        19xx-PID=The O/S terminology “Process Identifier (PID)” for the O/S PID of the 19xx process. This variable is also used to determine if the process is enabled (PID>0), or is disabled (PID=0 (i.e. <=0));
        19xx-Max=The configured number of worker thread(s) for the 19xx process;
        19xx-Sem=A process local semaphore for synchronizing 19xx worker threads, for example in properly starting up worker threads in process 19xx, and for properly terminating worker threads in process 19xx; and
        19xx-Ct=A process local count of the number of worker thread(s) currently running in the 19xx process.

19xx-PID and 19xx-Max are variables of PIP data 8. 19xx-Sem and 19xx-Ct are preferably process 19xx stack variables within the context of PIP code 6. 19xx-PID is a semaphore protected global variable in architecture 1900 so that it can be used to determine whether or not a particular 19xx process is enabled (i.e. running) or disabled (not running). 19xx-Max is a semaphore protected global variable in architecture 1900 so that user configuration processing outside of architecture 1900 can be used to administrate a desired number of worker threads for a 19xx process. Alternate embodiments will not provide user configuration of 19xx-Max variables (e.g. hard coded maximum number of threads), in which case no 19xx-Max global variable is necessary. “Thread(s) 19xx” is a brief form of stating “worker thread(s) of the 19xx process”.

    
    


Receive (Rx) queue 26 is for receiving CK 1304 or CK 1314 data (e.g. WDR or WDR requests), for example from wireless transmissions. Queue 26 will receive at least WDR information (destined for threads 1912) and WDR requests (FIG. 24C records 2490 destined for threads 1942). At least one thread (not shown) is responsible for listening on appropriate channel(s) and immediately depositing appropriate records to queue 26 so that they can be processed by architecture 1900. Preferably, there is a plurality (pool) of threads for feeding queue 26 based on channel(s) being listened on, and data 1302 or 1312 anticipated for being received. Alternative embodiments of thread(s) 1912 may themselves directly be listening on appropriate channels and immediately processing packets identified, in lieu of a queue 26. Alternative embodiments of thread(s) 1942 may themselves directly be listening on appropriate channels and immediately processing packets identified, in lieu of a queue 26. Queue 26 is preferred to isolate channel(s) (e.g. frequency(s)) and transmission reception processing in well known modular (e.g. Radio Frequency (RF)) componentry, while providing a high performance queue interface to other asynchronous threads of architecture 1900 (e.g. thread(s) of process 1912). Wave spectrums (via particular communications interface 70) are appropriately processed for feeding queue 26. As soon as a record is received by an MS, it is assumed ready for processing at queue 26. All queue 26 accesses are assumed to have appropriate semaphore control to ensure synchronous access by any thread at any particular time to prevent data corruption and misuse. Queue entries inserted to queue 26 may have arrived on different channel(s), and in such embodiments a channel qualifier may further direct queue entries from queue 26 to a particular thread 1912 or 1942 (e.g. thread(s) dedicated to channel(s)). In other embodiments, receive processing feeds queue 26 independent of any particular channel(s) monitored, or received on (the preferred embodiment described). Regardless of how data is received and then immediately placed on queue 26, a received date/time stamp (e.g. fields 1100p or 2490c) is added to the applicable record for communicating the received date/time stamp to a thread (e.g. thread(s) 1912 or 1942) of when the data was received. Therefore, the queue 26 insert interface tells the waiting thread(s) when the data was actually received. This ensures a most accurate received date/time stamp as close to receive processing as possible (e.g. enabling most accurate TDOA measurements). An alternate embodiment could determine applicable received date/time stamps in thread(s) 1912 or thread(s) 1942. Other data placed into received WDRs are: wave spectrum and/or particular communications interface 70 of the channel received on, and heading/yaw/pitch/roll (or accelerometer readings) with AOA measurements, signal strength, and other field 1100f eligible data of the receiving MS. Depending on alternative embodiments, queue 26 may be viewed metaphorically for providing convenient grounds of explanation.
Send (Tx) queue 24 is for sending/communicating CK 1304 data, for example for wireless transmissions. At least one thread (not shown) is responsible for immediately transmitting (e.g. wirelessly) anything deposited to queue 24. Preferably, there is a plurality (pool) of threads for feeding off of queue 24 based on channel(s) being transmitted on, and data 1302 anticipated for being sent. Alternative embodiments of thread(s) of processes 1902, 1922, 1932 and 1942 may themselves directly transmit (send/broadcast) on appropriate channels anything deposited to queue 24, in lieu of a queue 24. Queue 24 is preferred to isolate channel(s) (e.g. frequency(s)) and transmission processing in well known modular (e.g. RF) componentry, while providing a high performance queue interface to other asynchronous threads of architecture 1900 (e.g. thread(s) 1942). Wave spectrums and/or particular communications interface 70 are appropriately processed for sending from queue 24. All queue 24 accesses are assumed to have appropriate semaphore control to ensure synchronous access by any thread at any particular time to prevent data corruption and misuse. As soon as a record is inserted to queue 24, it is assumed sent immediately. Preferably, fields sent depend on fields set. Queue entries inserted to queue 24 may contain specification for which channel(s) to send on in some embodiments. In other embodiments, send processing feeding from queue 24 has intelligence for which channel(s) to send on (the preferred embodiment described). Depending on alternative embodiments, queue 24 may be viewed metaphorically for providing convenient grounds of explanation.
When interfacing to queue 24, the term “broadcast” refers to sending outgoing data in a manner for reaching as many MSs as possible (e.g. use all participating communications interfaces 70), whereas the term “send” refers to targeting a particular MS or group of MSs.
WDR queue 22 preferably contains at least one WDR 1100 at any point in time, for at least describing whereabouts of the MS of architecture 1900. Queue 22 accesses are assumed to have appropriate semaphore control to ensure synchronous access by any thread at any particular time to prevent data corruption and misuse. A single instance of data embodiment of queue 22 may require an explicit semaphore control for access. In a WDR plurality maintained to queue 22, appropriate queue interfaces are again provided to ensure synchronous thread access (e.g. implicit semaphore control). Regardless, there is still a need for a queue 22 to maintain a plurality of WDRs from remote MSs. The preferred embodiment of all queue interfaces uses queue interface maintained semaphore(s) invisible to code making use of queue (e.g. API) interfaces. Depending on alternative embodiments, queue 22 may be viewed metaphorically for providing convenient grounds of explanation.
Thread Request (TR) queue 1980 is for requesting processing by either a timing determination (worker) thread of process 1932 (i.e. thread 1932) or whereabouts determination (worker) thread of process 1952 (i.e. thread 1952). When requesting processing by a thread 1932, TR queue 1980 has requests (retrieved via processing 1934 after insertion processing 1918) from a thread 1912 to initiate TDOA measurement. When requesting processing by a thread 1952, TR queue 1980 has requests (retrieved via processing 1958 after insertion processing 1918 or 1930) from a thread 1912 or 1922 so that thread 1952 performs whereabouts determination of the MS of architecture 1900. Requests of queue 1980 comprise records 2400. Preferably, there is a plurality (pool) of threads 1912 for feeding queue 1980 (i.e. feeding from queue 26), and for feeding a plurality each of threads 1932 and 1952 from queue 1980. All queue 1980 accesses are assumed to have appropriate semaphore control to ensure synchronous access by any thread at any particular time to prevent data corruption and misuse. Depending on alternative embodiments, queue 1980 may be viewed metaphorically for providing convenient grounds of explanation.
With reference now to FIG. 24A, depicted is an illustration for describing a preferred embodiment of a thread request queue record, as maintained to Thread Request (TR) queue 1980. TR queue 1980 is not required when a LN-expanse globally uses NTP, as found in thread 19xx processing described for architecture 1900, however it may be required at a MS which does not have NTP, or a MS which interacts with another data processing system (e.g. MS) that does not have NTP. Therefore, TR queue record 2400 (i.e. queue entry 2400) may, or may not, be required. This is the reason FIG. 1A does not depict queue 1980. When NTP is in use globally (in LN-expanse), TDOA measurements can be made using a single unidirectional data (1302 or 1312) packet containing a sent date/time stamp (of when the data was sent). Upon receipt, that sent date/time stamp received is compared with the date/time of receipt to determine the difference. The difference is a TDOA measurement. Knowing transmission speeds with a TDOA measurement allows calculating a distance. In this NTP scenario, no thread(s) 1932 are required.
Threads 1912 and/or DLM processing may always insert the MS whereabouts without requirement for thread(s) 1952 by incorporating thread 1952 logic into thread 1912, or by directly starting (without queue 1980) a thread 1952 from a thread 1912. Therefore, threads 1952 may not be required. If threads 1952 are not required, queue 1980 may not be required by incorporating thread 1932 logic into thread 1912, or by directly starting (without queue 1980) a thread 1932 from a thread 1912. Therefore, queue 1980 may not be required, and threads 1932 may not be required.
Records 2400 (i.e. queue entries 2400) contain a request type field 2400a and data field 2400b. Request type field 2400a simply routes the queue entry to destined thread(s) (e.g. thread(s) 1932 or thread(s) 1952). A thread 1932 remains blocked on queue 1980 until a record 2400 is inserted which has a field 2400a containing the value 1932. A thread 1952 remains blocked on queue 1980 until a record 2400 is inserted which has a field 2400a containing the value 1952. Data field 2400b is set to zero (0) when type field 2400a contains 1952 (i.e. not relevant). Data field 2400b contains an MS ID (field 1100a) value, and possibly a targeted communications interface 70 (or wave spectrum if one to one), when type field contains 1932. Field 2400b will contain information for appropriately targeting the MS ID with data (e.g. communications interface to use if MS has multiple of them). An MS with only one communications interface can store only a MS ID in field 2400b. 
Records 2400 are used to cause appropriate processing by 19xx threads (e.g. 1932 or 1952) as invoked when needed (e.g. by thread(s) 1912). Process 1932 is a slave to queue type of process, and there are no queue 1980 entries 2400 which will not get timely processed by a thread 1932. No interim pruning is necessary to queue 1980.
With reference now back to FIG. 19, Correlation Response (CR) queue 1990 is for receiving correlation data for correlating requests transmitted in data 1302 with responses received in data 1302 or 1312. Records 2450 are inserted to queue 1990 (via processing 1928) from thread(s) 1922 so that thread(s) 1912 (after processing 1920) correlate data 1302 or 1312 with requests sent by thread(s) 1922 (e.g. over interface 1926), for the purpose of calculating a TDOA measurement. Additionally, records 2450 are inserted to queue 1990 (via processing 1936) from thread(s) 1932 so that thread(s) 1912 (after processing 1920) correlate data 1302 or 1312 with requests sent by thread(s) 1932 (e.g. over interface 1938), for the purpose of calculating a TDOA measurement. Preferably, there is a plurality (pool) of threads for feeding queue 1990 and for feeding from queue 1990 (feeding from queue 1990 with thread(s) 1912). All queue 1990 accesses are assumed to have appropriate semaphore control to ensure synchronous access by any thread at any particular time to prevent data corruption and misuse. Depending on alternative embodiments, queue 1990 may be viewed metaphorically for providing convenient grounds of explanation.
With reference now to FIG. 24B, depicted is an illustration for describing a preferred embodiment of a correlation response queue record, as maintained to Correlation Response (CR) queue 1990. CR queue 1990 is not required when a LN-expanse globally uses NTP, as found in thread 19xx processing described for architecture 1900, however it may be required at a MS which does not have NTP, or a MS which interacts with another data processing system (e.g. MS) that does not have NTP. Therefore, CR record 2450 (i.e. queue entry 2450) may, or may not, be required. This is the reason FIG. 1A does not depict queue 1990. The purpose of CR queue 1990 is to enable calculation of TDOA measurements using correlation data to match a request with a response. When NTP is used globally in the LN-expanse, no such correlations between a request and response is required, as described above. In the NTP scenario, thread(s) 1912 can deduce TDOA measurements directly from responses (see FIG. 21), and there is no requirement for threads 1932.
TDOA measurements are best taken using date/time stamps as close to the processing points of sending and receiving as possible, otherwise critical regions of code may be required for enabling process time adjustments to the measurements when processing is “further out” from said points. This is the reason MS receive processing provides received date/time stamps with data inserted to queue 26 (field 1100p or 2490c). In a preferred embodiment, send queue 24 processing inserts to queue 1990 so the date/time stamp field 2450a for when sent is as close to just prior to having been sent as possible. However, there is still the requirement for processing time spent inserting to queue 1990 prior to sending anyway. Anticipated processing speeds of architecture 1900 allow reasonably moving sent date/time stamp setting just a little “further out” from actually sending to keep modular send processing isolated. A preferred embodiment (as presented) assumes the send queue 24 interface minimizes processing instructions from when data is placed onto queue 24 and when it is actually sent, so that the sending thread(s) 19xx (1902, 1922, 1932 and 1942) insert to queue 1990 with a reasonably accurate sent/date stamp field 2450a. This ensures a most accurate sent date/time stamp (e.g. enabling most accurate TDOA measurements). An alternate embodiment makes appropriate adjustments for more accurate time to consider processing instructions up to the point of sending after queue 1990 insertion.
Records 2450 (i.e. queue entries 2450) contain a date/time stamp field 2450a and a correlation data field 2450b. Date/time stamp field 2450a contains a date/time stamp of when a request (data 1302) was sent as set by the thread inserting the queue entry 2450. Correlation data field 2450b contains unique correlation data (e.g. MS id with suffix of unique number) used to provide correlation for matching sent requests (data 1302) with received responses (data 1302 or 1312), regardless of the particular communications interface(s) used (e.g. different wave spectrums supported by MS). Upon a correlation match, a TDOA measurement is calculated using the time difference between field 2450a and a date/time stamp of when the response was received (e.g. field 1100p). A thread 1912 accesses queue 1990 for a record 2450 using correlation field 2450b to match, when data 1302 or 1312 contains correlation data for matching. A thread 1912 then uses the field 2450a to calculate a TDOA measurement. Process 1912 is not a slave to queue 1990 (but is to queue 26). A thread 1912 peeks queue 1990 for a matching entry when appropriate. Queue 1990 may contain obsolete queue entries 2450 until pruning is performed. Some WDR requests may be broadcasts, therefore records 2450 may be used for correlating a plurality of responses. In another record 2450 embodiment, an additional field 2450c is provided for specification of which communication interface(s) and/or channel(s) to listen on for a response.
With reference now back to FIG. 19, any reasonable subset of architecture 1900 processing may be incorporated in a MS. For example in one minimal subset embodiment, a DLM which has excellent direct locating means only needs a single instance WDR (queue 22) and a single thread 1902 for broadcasting whereabouts data to facilitate whereabouts determination by other MSs. In a near superset embodiment, process 1942 processing may be incorporated completely into process 1912, thereby eliminating processing 1942 by having threads 1912 feed from queue 26 for WDR requests as well as WDR information. In another subset embodiment, process 1922 may only send requests to queue 24 for responses, or may only start a thread 1952 for determining whereabouts of the MS. There are many viable subset embodiments depending on the MS being a DLM or ILM, capabilities of the MS, LN-expanse deployment design choices, etc. A reference to FIG. 19 accompanies thread 19xx flowcharts (FIGS. 20, 21, 22, 23, 25 and 26A). The user, preferably an administrator type (e.g. for IbxPhoneTM debug) selectively configures whether or not to start or terminate a process (thread pool), and perhaps the number of threads to start in the pool (see FIG. 14A). Starting a process (and threads) and terminating processes (and threads) is shown in flowcharts 29A and 29B. There are other embodiments for properly starting and terminating threads without departing from the spirit and scope of this disclosure.
FIG. 20 depicts a flowchart for describing a preferred embodiment of MS whereabouts broadcast processing, for example to facilitate other MSs in locating themselves in an LN-expanse. FIG. 20 processing describes a process 1902 worker thread, and is of PIP code 6. Thread(s) 1902 purpose is for the MS of FIG. 20 processing (e.g. a first, or sending, MS) to periodically transmit whereabouts information to other MSs (e.g. at least a second, or receiving, MS) to use in locating themselves. It is recommended that validity criteria set at block 1444 for 1902-Max be fixed at one (1) in the preferred embodiment. Multiple channels for broadcast at block 2016 should be isolated to modular send processing (feeding from a queue 24).
In an alternative embodiment having multiple transmission channels visible to process 1902, there can be a worker thread 1902 per channel to handle broadcasting on multiple channels. If thread(s) 1902 (block 2016) do not transmit directly over the channel themselves, this embodiment would provide means for communicating the channel for broadcast to send processing when interfacing to queue 24 (e.g. incorporate a channel qualifier field with WDR inserted to queue 24). This embodiment could allow specification of at least one (1) worker thread per channel, however multiple worker threads configurable for process 1902 as appropriated for the number of channels configurable for broadcast.
Processing begins at block 2002, continues to block 2004 where the process worker thread count 1902-Ct is accessed and incremented by 1 (using appropriate semaphore access (e.g. 1902-Sem)), and continues to block 2006 for peeking WDR queue 22 for a special termination request entry. Block 2004 may also check the 1902-Ct value, and signal the process 1902 parent thread that all worker threads are running when 1902-Ct reaches 1902-Max. Thereafter, if block 2008 determines that a worker thread termination request was not found in queue 22, processing continues to block 2010. Block 2010 peeks the WDR queue 22 (using interface 1904) for the most recent highest confidence entry for this MS whereabouts by searching queue 22 for: the MS ID field 1100a matching the MS ID of FIG. 20 processing, and a confidence field 1100d greater than or equal to the confidence floor value, and a most recent NTP enabled date/time stamp field 1100b within a prescribed trailing period of time (e.g. preferably less than or equal to 2 seconds). For example, block 2010 peeks the queue (i.e. makes a copy for use if an entry found for subsequent processing, but does not remove the entry from queue) for a WDR of this MS (i.e. MS of FIG. 20 processing) which has the greatest confidence over 75 and has been most recently inserted to queue 22 with an NTP date/time stamp in the last 2 seconds. Date/time stamps for MS whereabouts which are not NTP derived have little use in the overall palette of process 19xx choices of architecture 1900 because receiving data processing systems (e.g. MSs) will have no means of determining an accurate TDOA measurement in the unidirectional transmission from an NTP disabled MS. A receiving data processing system will still require a bidirectional correlated exchange with the MS of FIG. 20 processing to determine an accurate TDOA measurement in its own time scale (which is accomplished with thread(s) 1922 pulling WDR information anyway). An alternate embodiment to block 2010 will not use the NTP indicator as a search criteria so that receiving data processing systems can receive to a thread 1912, and then continue for appropriate correlation processing, or can at least maintain whereabouts to queue 22 to know who is nearby.
Thread 1902 is of less value to the LN-expanse when it broadcasts outdated/invalid whereabouts of the MS to facilitate locating other MSs. In an alternate embodiment, a movement tolerance (e.g. user configured or system set (e.g. 3 meters)) is incorporated at the MS, or at service(s) used to locate the MS, for knowing when the MS has significantly moved (e.g. more than 3 meters) and how long it has been (e.g. 45 seconds) since last significantly moving. In this embodiment, the MS is aware of the period of time since last significantly moving and the search time criteria is set using the amount of time since the MS significantly moved (whichever is greater). This way a large number of (perhaps more confident candidates) WDRs are searched in the time period when the MS has not significantly moved. Optional blocks 278 through 284 may have been incorporated to FIG. 2F for movement tolerance processing just described, in which case the LWT is compared to the current date/time of block 2010 processing to adjust block 2010 search time criteria for the correct trailing period. In any case, a WDR is sought at block 2010 which will help other MSs in the LN-expanse locate themselves, and to let other MSs know who is nearby.
Thereafter, if block 2012 determines a useful WDR was found, then block 2014 prepares the WDR for send processing, block 2016 broadcasts the WDR information (using send interface 1906) by inserting to queue 24 so that send processing broadcasts data 1302 (e.g. on all available communications interface(s) 70), for example as far as radius 1306, and processing continues to block 2018. The broadcast is for reception by data processing systems (e.g. MSs) in the vicinity. At least fields 1100b, 1100c, 1100d, and 1100n are broadcast. See FIG. 11A descriptions. Fields are set to the following upon exit from block 2014:
MS ID field 1100a is preferably set with: Field 1100a from queue 22, or transformed (if not already) into a pseudo MS ID (possibly for future correlation) if desired. This field may also be set to null (not set) because it is not required when the NTP indicator of field 1100b is enabled and the broadcast is sent with an NTP enabled field 1100n. 

DATE/TIME STAMP field 1100b is preferably set with: Field 1100b from queue 22.

LOCATION field 1100c is preferably set with: Field 1100c from queue 22.

CONFIDENCE field 1100d is preferably set with: Field 1100d from queue 22.

LOCATION TECHNOLOGY field 1100e is preferably set with: Field 1100e from queue 22.

LOCATION REFERENCE INFO field 1100f is preferably set with: null (not set). Null indicates to send processing feeding from queue 24 to use all available comm. interfaces 70 (i.e. Broadcast). Specifying a comm. interface targets the specified interface (i.e. send).

COMMUNICATIONS REFERENCE INFO field 1100g is preferably set with: null (not set). If MS ID (or pseudo MS ID) is sent, this is all that is required to target this MS.

SPEED field 1100h is preferably set with: Field 1100h from queue 22.

HEADING field 1100i is preferably set with: Field 1100i from queue 22.

ELEVATION field 1100j is preferably set with: Field 1100j from queue 22.

APPLICATION FIELDS field 1100k is preferably set with: Field 1100k from queue 22. An alternate embodiment will add, alter, or discard data (with or without date/time stamps) here at the time of block 2014 processing.

CORRELATION FIELD 1100m is preferably set with: null (not set).

SENT DATE/TIME STAMP field 1100n is preferably set with: Sent date/time stamp as close in processing the broadcast of block 2016 as possible.

RECEIVED DATE/TIME STAMP field 1100p is preferably set with: Not Applicable (i.e. N/A for sending).

Block 2018 causes thread 1902 to sleep according to the SPTP setting (e.g. a few seconds). When the sleep time has elapsed, processing continues back to block 2006 for another loop iteration of blocks 2006 through 2016. Referring back to block 2012, if a useful WDR was not found (e.g. candidates too old), then processing continues to block 2018. Referring back to block 2008, if a worker thread termination request entry was found at queue 22, then block 2020 decrements the worker thread count by 1 (using appropriate semaphore access (e.g. 1902-Sem)), and thread 1902 processing terminates at block 2022. Block 2020 may also check the 1902-Ct value, and signal the process 1902 parent thread that all worker threads are terminated when 1902-Ct equals zero (0).
Block 2016 causes broadcasting data 1302 containing CK 1304 wherein CK 1304 contains WDR information prepared as described above for block 2014. Alternative embodiments of block 2010 may not search a specified confidence value, and broadcast the best entry available anyway so that listeners in the vicinity will decide what to do with it. A semaphore protected data access (instead of a queue peek) may be used in embodiments where there is always one WDR current entry maintained for the MS.
In the embodiment wherein usual MS communications data 1302 of the MS is altered to contain CK 1304 for listening MSs in the vicinity, send processing feeding from queue 24, caused by block 2016 processing, will place WDR information as CK 1304 embedded in usual data 1302 at the next opportune time of sending usual data 1302. If an opportune time is not timely, send processing should discard the send request of block 2016 to avoid broadcasting outdated whereabouts information (unless using a movement tolerance and time since last significant movement). As the MS conducts its normal communications, transmitted data 1302 contains new data CK 1304 to be ignored by receiving MS other character 32 processing, but to be found by listening MSs within the vicinity which anticipate presence of CK 1304. Otherwise, when LN-Expanse deployments have not introduced CK 1304 to usual data 1302 communicated on a receivable signal by MSs in the vicinity, FIG. 20 sends repeated timely pulsed broadcasts of new data 1302 (per SPTP) for MSs in the vicinity of the first MS to receive. In any case, appropriate implementation should ensure field 1100n is as accurate as possible for when data 1302 is actually sent.
An alternate embodiment to architecture 1900 for elimination of process 1902 incorporates a trigger implementation for broadcasting MS whereabouts at the best possible time—i.e. when the MS whereabouts is inserted to queue 22. As soon as a new (preferably NTP enabled) WDR candidate becomes available, it can be broadcast at a new block 279 of FIG. 2F. (e.g. new block 279 continued to from block 278 and then continuing to block 280). Fields are set as described above for FIG. 20. Preferably, the new block 279 starts an asynchronous thread consisting of blocks 2014 and 2016 so that FIG. 2F processing performance is not impacted. In a further embodiment, block 279 can be further enhanced using the SPTP value to make sure that too many broadcasts are not made. The SPTP (Source Periodicity Time Period) could be observed for getting as close as possible to broadcasting whereabouts in accordance with SPTP (e.g. worst case there are not enough broadcasts).
FIG. 21 depicts a flowchart for describing a preferred embodiment of MS whereabouts collection processing. FIG. 21 processing describes a process 1912 worker thread, and is of PIP code 6. Thread(s) 1912 purpose is for the MS of FIG. 21 processing (e.g. a second, or receiving, MS) to collect potentially useful WDR information from other MSs (e.g. at least a first, or sending, MS) in the vicinity for determining whereabouts of the receiving (second) MS. It is recommended that validity criteria set at block 1444 for 1912-Max be set as high as possible (e.g. 10) relative performance considerations of architecture 1900, with at least one thread per channel that WDR information may be received on by the receiving MS. Multiple channels for receiving data fed to queue 26 should be isolated to modular receive processing (feeding a queue 26).
In an alternative embodiment having multiple receiving transmission channels visible to process 1912 (e.g. thread(s) 1912 receiving directly), there can be a worker thread 1912 per channel to handle receiving on multiple channels simultaneously. If thread(s) 1912 do not receive directly from the channel, the preferred embodiment of FIG. 21 would not need to convey channel information to thread(s) 1912 waiting on queue 26 anyway. Embodiments could allow specification/configuration of many thread(s) 1912 per channel.
Processing begins at block 2102, continues to block 2104 where the process worker thread count 1912-Ct is accessed and incremented by 1 (using appropriate semaphore access (e.g. 1912-Sem)), and continues to block 2106 for interim housekeeping of pruning the WDR queue by invoking a Prune Queues procedure of FIG. 27. Block 2104 may also check the 1912-Ct value, and signal the process 1912 parent thread that all worker threads are running when 1912-Ct reaches 1912-Max. Block 2106 may not be required since block 2130 can cause queue 22 pruning (block 292).
Thereafter, block 2108 retrieves from queue 26 a WDR (using interface 1914), perhaps a special termination request entry, or a WDR received in data 1302 (CK 1304) or data 1312 (CK 1314), and only continues to block 2110 when a WDR has been retrieved. Block 2108 stays blocked on retrieving from queue 26 until any WDR is retrieved. If block 2110 determines that a special WDR indicating to terminate was not found in queue 26, processing continues to block 2112. Block 2112 adjusts date/time stamp field 1100b if necessary depending on NTP use in the LN-expanse and adjusts the confidence field 1100d accordingly. In a preferred embodiment, fields 1100b and 1100d for the WDR in process is set as follows for certain conditions:

    
    
        Fields 1100b, 1100n and 1100p all NTP indicated: keep fields 1100b and 1100d as is; or
        Fields 1100b and 1100n are NTP indicated, 1100p is not: Is correlation (field 1100m) present?: No, then set confidence (field 1100d) to 0 (for filtering out at block 2114)/Yes, then set field 1100b to 1100p (in time terms of this MS) and adjust confidence lower based on differences between fields 1100b, 1100n and 1100p; or
        Fields 1100b and 1100p are NTP indicated, 1100n is not: Is correlation present?: No, then set confidence to 0 (for filtering out at block 2114)/Yes, then set field 1100b to 1100p (in time terms of this MS) and adjust confidence lower based on differences between fields 1100b, 1100n and 1100p; or
        Fields 1100b NTP indicated, 1100n and 1100p not: Is correlation present?: No, then set confidence to 0 (for filtering out at block 2114)/Yes, then set field 1100b to 1100p (in time terms of this MS) and adjust confidence lower based on differences between fields 1100b, 1100n and 1100p; or
        Field 1100b not NTP indicated, 1100n and 1100p are: Is correlation present?: No, then set confidence to 0 (for filtering out at block 2114)/Yes, then set field 1100b to 1100p (in time terms of this MS) and adjust confidence lower based on differences between fields 1100b, 1100n and 1100p; or
        Fields 1100b and 1100p are not NTP indicated, 1100n is: Is correlation present?: No, then set confidence to 0 (for filtering out at block 2114)/Yes, then set field 1100b to 1100p (in time terms of this MS) and adjust confidence lower based on differences between fields 1100b, 1100n and 1100p; or
        Fields 1100b and 1100n are not NTP indicated, 1100p is: Is correlation present?: No, then set confidence to 0 (for filtering out at block 2114)/Yes, then set field 1100b to 1100p (in time terms of this MS) and adjust confidence lower based on differences between fields 1100b, 1100n and 1100p; or
        Fields 1100b, 1100n and 1100p not NTP indicated: Is correlation present?: No, then set confidence to 0 (for filtering out at block 2114)/Yes, then set field 1100b to 1100p (in time terms of this MS) and adjust confidence lower based on differences between fields 1100b, 1100n and 1100p. 

NTP ensures maintaining a high confidence in the LN-expanse, but absence of NTP is still useful. Confidence values should be adjusted with the knowledge of the trailing time periods used for searches when sharing whereabouts (e.g. thread(s) 1942 searches). Block 2112 continues to block 2114.

    
    


If at block 2114, the WDR confidence field 1100d is not greater than the confidence floor value, then processing continues back to block 2106. If block 2114 determines that the WDR field 1100d is satisfactory, then block 2116 initializes a TDOA_FINAL variable to False, and block 2118 checks if the WDR from block 2108 contains correlation (field 1100m).
If block 2118 determines the WDR does not contain correlation, then block 2120 accesses the ILMV, block 2122 determines the source (ILM or DLM) of the WDR using the originator indicator of field 1100e, and block 2124 checks suitability for collection of the WDR. While processes 19xx running are generally reflective of the ILMV roles configured, it is possible that the more descriptive nature of ILMV role(s) not be one to one in relationship to 19xx processes, in particular depending on the subset of architecture 1900 in use. Block 2124 is redundant anyway because of block 274. If block 2124 determines the ILMV role is disabled for collecting this WDR, then processing continues back to block 2106. If block 2124 determines the ILMV role is enabled for collecting this WDR, then processing continues to block 2126.
If block 2126 determines both the first (sending) and second (receiving) MS are NTP enabled (i.e. Fields 1100b, 1100n and 1100p are NTP indicated) OR if TDOA_FINAL is set to True (as arrived to via block 2150), then block 2128 completes the WDR for queue 22 insertion, block 2130 prepares parameters for FIG. 2F processing and block 2132 invokes FIG. 2F processing (interface 1916). Parameters set at block 2130 are: WDRREF=a reference or pointer to the WDR completed at block 2128; DELETEQ=FIG. 21 location queue discard processing; and SUPER=FIG. 21 supervisory notification processing. Block 2128 calculates a TDOA measurement whenever possible and inserts to field 1100f. See FIG. 11A descriptions. Fields are set to the following upon exit from block 2128:
MS ID field 1100a is preferably set with: Field 1100a from queue 26.
DATE/TIME STAMP field 1100b is preferably set with: Preferred embodiment discussed for block 2112.
LOCATION field 1100c is preferably set with: Field 1100c from queue 26.
CONFIDENCE field 1100d is preferably set with: Confidence at equal to or less than field 1100d received from queue 26 (see preferred embodiment for block 2112).
LOCATION TECHNOLOGY field 1100e is preferably set with: Field 1100e from queue 26.
LOCATION REFERENCE INFO field 1100f is preferably set with: All available measurements from receive processing (e.g. AOA, heading, yaw, pitch, roll, signal strength, wave spectrum, particular communications interface 70, etc), and TDOA measurement(s) as determined in FIG. 21 (blocks 2128 and 2148).

COMMUNICATIONS REFERENCE INFO field 1100g is preferably set with: Field 1100g from queue 26.

SPEED field 1100h is preferably set with: Field 1100h from queue 26.

HEADING field 1100i is preferably set with: Field 1100i from queue 26.

ELEVATION field 1100j is preferably set with: Field 1100j from queue 26.

APPLICATION FIELDS field 1100k is preferably set with: Field 1100k from queue 26. An alternate embodiment will add, alter, or discard data (with or without date/time stamps) here at the time of block 2128 processing.

CORRELATION FIELD 1100m is preferably set with: Not Applicable (i.e. not maintained to queue 22). Was used by FIG. 21 processing.

SENT DATE/TIME STAMP field 1100n is preferably set with: Not Applicable (i.e. not maintained to queue 22). Was used by FIG. 21 processing.

RECEIVED DATE/TIME STAMP field 1100p is preferably set with: Not Applicable (i.e. not maintained to queue 22). Was used by FIG. 21 processing.

Block 2132 continues to block 2134 where a record 2400 is built (i.e. field 2400a=1952 and field 2400b is set to null (e.g. −1)) and then block 2136 inserts the record 2400 to TR queue 1980 (using interface 1918) so that a thread 1952 will perform processing. Blocks 2134 and 2136 may be replaced with an alternative embodiment for starting a thread 1952. Block 2136 continues back to block 2106.
Referring now back to block 2126, if it is determined that a TDOA measurement cannot be made (i.e. (field 1100n or 1100p not NTP indicated) OR if TDOA_FINAL is set to False), then block 2138 checks if the WDR contains a MS ID (or pseudo MS ID). If block 2138 determines there is none, then processing continues back to block 2106 because there is no way to distinguish one MS from another with respect to the WDR retrieved at block 2108 for directing bidirectional correlation. An alternate embodiment will use a provided correlation field 1100m received at block 2108, instead of a field 1100a, for knowing how to target the originating MS for TDOA measurement processing initiated by a thread 1932. If block 2138 determines there is a usable MS ID (or correlation field), then block 2140 builds a record 2400 (field 2400a=1932, field 2400b=the MS ID (or pseudo MS ID, or correlation) and particular communications interface from field 1100f (if available) of the WDR of block 2108, and block 2142 inserts the record 2400 to queue 1980 (interface 1918) for starting a thread 1932. Block 2142 continues back to block 2106. An alternate embodiment causes block 2126 to continue directly to block 2140 (no block 2138) for a No condition from block 2126. Regardless of whether the originating MS ID can be targeted, a correlation (in lieu of an MS ID) may be used when the MS responds with a broadcast. The WDR request made by thread 1932 can be a broadcast rather than a targeted request. Thread(s) 1932 can handle sending targeted WDR requests (to a known MS ID) and broadcast WDR requests.
Referring back to block 2118, if it is determined the WDR does contain correlation (field 1100m), block 2144 peeks the CR queue 1990 (using interface 1920) for a record 2450 containing a match (i.e. field 1100m matched to field 2450b). Thereafter, if block 2146 determines no correlation was found on queue 1990 (e.g. response took too long and entry was pruned), then processing continues to block 2120 already described. If block 2146 determines the correlation entry was found (i.e. thread 1912 received a response from an earlier request (e.g. from a thread 1922 or 1932), then block 2148 uses date/time stamp field 2450a (from block 2144) with field 1100p (e.g. from block 2108) to calculate a TDOA measurement in time scale of the MS of FIG. 21 processing, and sets field 1100f appropriately in the WDR. Note that correlation field 2450b is valid across all available MS communications interfaces (e.g. all supported active wave spectrums). The TDOA measurement considers duration of time between the earlier sent date/time of record 2450 and the later time of received date/time field 1100p. The TDOA measurement may further be altered at block 2148 processing time to a distance knowing the velocity of the wave spectrum used as received to queue 26. Block 2148 continues to block 2150 where the TDOA_FINAL variable is set to True, then to block 2120 for processing already described.
Referring back to block 2110, if a WDR for a worker thread termination request was found at queue 26, then block 2152 decrements the worker thread count by 1 (using appropriate semaphore access (e.g. 1912-Sem)), and thread 1912 processing terminates at block 2154. Block 2152 may also check the 1912-Ct value, and signal the process 1912 parent thread that all worker threads are terminated when 1912-Ct equals zero (0).
In the embodiment wherein usual MS communications data 1302 of the MS is altered to contain CK 1304 or 1314 for listening MSs in the vicinity, receive processing feeding queue 26 will place WDR information to queue 26 as CK 1304 or 1314 is detected for being present in usual communication data 1302 or 1304. As normal communications are conducted, transmitted data 1302 or 1312 contains new data CK 1304 or 1314 to be ignored by receiving MS other character 32 processing, but to be found by listening MSs within the vicinity which anticipate presence of CK 1304 or 1314. Otherwise, when LN-Expanse deployments have not introduced CK 1304 (or 1314) to usual data 1302 (or 1312) communicated on a receivable signal by MSs in the vicinity, FIG. 21 receives new data 1302 (or 1312) sent. In any case, field 1100p should be as accurate as possible for when data 1302 (or 1312) was actually received. Critical regions of code and/or anticipated execution timing may be used to affect a best setting of field 1100p. 
So, FIG. 21 is responsible for maintaining whereabouts of others to queue 22 with data useful for triangulating itself.
FIG. 22 depicts a flowchart for describing a preferred embodiment of MS whereabouts supervisor processing, for example to ensure the MS of FIG. 22 processing (e.g. first MS) is maintaining timely whereabouts information for itself. FIG. 22 processing describes a process 1922 worker thread, and is of PIP code 6. Thread(s) 1922 purpose is for the MS of FIG. 22 processing (e.g. a first, or sending, MS), after determining its whereabouts are stale, to periodically transmit requests for whereabouts information from MSs in the vicinity (e.g. from at least a second, or receiving, MS), and/or to start a thread 1952 for immediately determining whereabouts. Alternative embodiments to FIG. 22 will implement processing of blocks 2218 through 2224, or processing of blocks 2226 through 2228, or both as depicted in FIG. 22. It is recommended that validity criteria set at block 1444 for 1922-Max be fixed at one (1) in the preferred embodiment. Multiple channels for broadcast at block 2224 should be isolated to modular send processing feeding from a queue 24.
In an alternative embodiment having multiple transmission channels visible to process 1922, there can be a worker thread 1922 per channel to handle broadcasting on multiple channels. If thread(s) 1922 (block 2224) do not transmit directly over the channel, this embodiment would provide means for communicating the channel for broadcast to send processing when interfacing to queue 24 (e.g. incorporate a channel qualifier field with WDR request inserted to queue 24). This embodiment could allow specification of one (1) thread per channel, however multiple worker threads configurable for process 1922 as determined by the number of channels configurable for broadcast.
Processing begins at block 2202, continues to block 2204 where the process worker thread count 1922-Ct is accessed and incremented by 1 (using appropriate semaphore access (e.g. 1922-Sem)), and continues to block 2206 for interim housekeeping of pruning the CR queue by invoking a Prune Queues procedure of FIG. 27. Block 2204 may also check the 1922-Ct value, and signal the process 1922 parent thread that all worker threads are running when 1922-Ct reaches 1922-Max. Block 2206 continues to block 2208 for peeking WDR queue 22 (using interface 1924) for a special termination request entry. Thereafter, if block 2210 determines that a worker thread termination request was not found in queue 22, processing continues to block 2212. Block 2212 peeks the WDR queue 22 (using interface 1924) for the most recent highest confidence entry for this MS whereabouts by searching queue 22 for: the MS ID field 1100a matching the MS ID of FIG. 22 processing, and a confidence field 1100d greater than or equal to the confidence floor value, and a most recent date/time stamp field 1100b within a prescribed trailing period of time of block 2212 search processing using a function of the WTV (i.e. f(WTV)=short-hand for “function of WTV”) for the period. For example, block 2212 peeks the queue (i.e. makes a copy for use if an entry found for subsequent processing, but does not remove the entry from queue) for a WDR of the first MS which has the greatest confidence over 75 and has been most recently inserted to queue 22 in the last 3 seconds. Since the MS whereabouts accuracy may be dependent on timeliness of the WTV, it is recommended that the f(WTV) be some value less than or equal to WTV, but preferably not greater than the WTV. Thread 1922 is of less value to the MS when not making sure in a timely manner the MS is maintaining timely whereabouts for itself. In an alternate embodiment, a movement tolerance (e.g. user configured or system set (e.g. 3 meters)) is incorporated at the MS, or at service(s) used to locate the MS, for knowing when the MS has significantly moved (e.g. more than 3 meters) and how long it has been (e.g. 45 seconds) since last significantly moving. In this embodiment, the MS is aware of the period of time since last significantly moving and the f(WTV) is set using the amount of time since the MS significantly moved (i.e. f(WTV)=as described above, or the amount of time since significantly moving, whichever is greater). This way a large number of (perhaps more confident candidates) WDRs are searched in the time period when the MS has not significantly moved. Optional blocks 278 through 284 may have been incorporated to FIG. 2F for movement tolerance processing just described, in which case the LWT is compared to the current date/time to adjust the WTV for the correct trailing period. In any case, a WDR is sought at block 2212 which will verify whether or not MS whereabouts are current.
Thereafter, if block 2214 determines a satisfactory WDR was found, then processing continues to block 2216. Block 2216 causes thread 1922 to sleep according to a f(WTV) (preferably a value less than or equal to the WTV (e.g. 95% of WTV)). When the sleep time has elapsed, processing continues back to block 2206 for another loop iteration of blocks 2206 through 2214.
If block 2214 determines a current WDR was not found, then block 2218 builds a WDR request (e.g. containing record 2490 with field 2490a for the MS of FIG. 22 processing (MS ID or pseudo MS ID) so receiving MSs in the LN-expanse know who to respond to, and field 2490b with appropriate correlation for response), block 2220 builds a record 2450 (using correlation generated for the request at block 2218), block 2222 inserts the record 2450 to queue 1990 (using interface 1928), and block 2224 broadcasts the WDR request (record 2490) for responses. Absence of field 2490d indicates to send processing feeding from queue 24 to broadcast on all available comm. interfaces 70.
With reference now to FIG. 24C, depicted is an illustration for describing a preferred embodiment of a WDR request record, as communicated to queue 24 or 26. When a LN-expanse globally uses NTP, as found in thread 19xx processing described for architecture 1900, a WDR request record 2490 may, or may not, be required. TDOA calculations can be made using a single unidirectional data (1302 or 1312) packet containing a sent date/time stamp (of when the data was sent) as described above.
Records 2490 contain a MS ID field 2490a and correlation field 2490b. MS ID field 2490a contains an MS ID (e.g. a value of field 1100a). An alternate embodiment will contain a pseudo MS ID (for correlation), perhaps made by a derivative of the MS ID with a unique (suffix) portion, so that receiving MSs can directly address the MS sending the request without actually knowing the MS ID (i.e. they know the pseudo MS ID which enables the MS to recognize originated transmissions). Correlation data field 2490b contains unique correlation data (e.g. MS id with suffix of unique number) used to provide correlation for matching sent requests (data 1302) with received WDR responses (data 1302 or 1312). Upon a correlation match, a TDOA measurement is calculated using the time difference between field 2450a and a date/time stamp of when the response was received (e.g. field 1100p). Received date/time stamp field 2490c is added by receive processing feeding queue 26 when an MS received the request from another MS. Comm interface field 2490d is added by receive processing inserting to queue 26 for how to respond and target the originator. Many MSs do not have choices of communications interfaces, so field 2490d may not be required. If available it is used, otherwise a response can be a broadcast. Field 2490d may contain a wave spectrum identifier for uniquely identifying how to respond (e.g. one to one with communications interface), or any other value for indicating how to send given how the request was received.
With reference back to FIG. 22, block 2218 builds a request that receiving MSs will know is for soliciting a response with WDR information. Block 2218 generates correlation for field 2450b to be returned in responses to the WDR request broadcast at block 2224. Block 2220 also sets field 2450a to when the request was sent. Preferably, field 2450a is set as close to the broadcast as possible. In an alternative embodiment, broadcast processing feeding from queue 24 makes the record 2450 and inserts it to queue 1990 with a most accurate time of when the request was actually sent. Fields 2450a are to be as accurate as possible. Block 2224 broadcasts the WDR request data 1302 (using send interface 1926) by inserting to queue 24 so that send processing broadcasts data 1302, for example as far as radius 1306. Broadcasting preferably uses all available communications interface(s) 70 (e.g. all available wave spectrums). Therefore, the comm interface field 2490d is not set (which implies to send processing to do a broadcast).
Block 2224 continues to block 2226 where a record 2400 is built (i.e. field 2400a=1952 and field 2400b is set to null (e.g. −1)) and then block 2228 inserts the record 2400 to TR queue 1980 (using interface 1930) so that a thread 1952 will perform processing. Blocks 2226 and 2228 may be replaced with an alternative embodiment for starting a thread 1952. Block 2228 continues back to block 2216.
Referring back to block 2210, if a worker thread termination request entry was found at queue 22, then block 2230 decrements the worker thread count by 1 (using appropriate semaphore access (e.g. 1922-Sem)), and thread 1922 processing terminates at block 2232. Block 2230 may also check the 1922-Ct value, and signal the process 1922 parent thread that all worker threads are terminated when 1922-Ct equals zero (0).
In the embodiment wherein usual MS communications data 1302 of the MS is altered to contain CK 1304 for listening MSs in the vicinity, send processing feeding from queue 24, caused by block 2224 processing, will place the request as CK 1304 embedded in usual data 1302 at the next opportune time of sending usual data 1302. This may require the alternative embodiment of adding the entry to queue 1990 being part of send processing. As the MS conducts its normal communications, transmitted data 1302 contains new data CK 1304 to be ignored by receiving MS other character 32 processing, but to be found by listening MSs within the vicinity which anticipate presence of CK 1304. Otherwise, when LN-Expanse deployments have not introduced CK 1304 to usual data 1302 communicated on a receivable signal by MSs in the vicinity, FIG. 22 sends new WDR request data 1302.
FIG. 23 depicts a flowchart for describing a preferred embodiment of MS timing determination processing. FIG. 23 processing describes a process 1932 worker thread, and is of PIP code 6. Thread(s) 1932 purpose is for the MS of FIG. 23 processing to determine TDOA measurements when needed for WDR information received. It is recommended that validity criteria set at block 1444 for 1932-Max be set as high as possible (e.g. 12) relative performance considerations of architecture 1900, to service multiple threads 1912.
Processing begins at block 2302, continues to block 2304 where the process worker thread count 1932-Ct is accessed and incremented by 1 (using appropriate semaphore access (e.g. 1932-Sem)), and continues to block 2306 for interim housekeeping of pruning the CR queue by invoking a Prune Queues procedure of FIG. 27. Block 2304 may also check the 1932-Ct value, and signal the process 1932 parent thread that all worker threads are running when 1932-Ct reaches 1932-Max.
Thereafter, block 2308 retrieves from queue 1980 a record 2400 (using interface 1934), perhaps a special termination request entry, or a record 2400 received from thread(s) 1912, and only continues to block 2310 when a record 2400 containing field 2400a set to 1932 has been retrieved. Block 2308 stays blocked on retrieving from queue 1980 until a record 2400 with field 2400a=1932 is retrieved. If block 2310 determines a special entry indicating to terminate was not found in queue 1980, processing continues to block 2312.
If at block 2312, the record 2400 does not contain a MS ID (or pseudo MS ID) in field 2400b, processing continues to block 2314 for building a WDR request (record 2490) to be broadcast, and then to block 2318. Broadcasting preferably uses all available communications interface(s) 70 (e.g. all available wave spectrums). If block 2312 determines the field 2400b is a valid MS ID (not null), block 2316 builds a WDR request targeted for the MS ID, and processing continues to block 2318. A targeted request is built for targeting the MS ID (and communications interface, if available) from field 2400b. Send processing is told which communications interface to use, if available (e.g. MS has multiple), otherwise send processing will target each available interface. In the unlikely case a MS ID is present in field 2400b without the communications interface applicable, then all communications interfaces 70 are used with the targeted MS ID. In MS embodiments with multiple communications interfaces 70, then 2400b is to contain the applicable communication interface for sending. Block 2318 generates appropriate correlation for a field 2450b (e.g. to be compared with a response WDR at block 2144), block 2320 sets field 2450a to the current MS date/time stamp, block 2322 inserts the record 2450 to queue 1990 (using interface 1936), and block 2324 sends/broadcasts (using interface 1938) a WDR request (record 2490). Thereafter, processing continues back to block 2306 for another loop iteration. An alternative embodiment will only target a WDR request to a known MS ID. For example, block 2312 would continue back to block 2306 if no MS ID is found (=null), otherwise it will continue to block 2316 (i.e. no use for block 2314).
Block 2318 sets field 2450b to correlation to be returned in responses to the WDR request sent/broadcast at block 2324. Block 2320 sets field 2450a to when the request is sent. Preferably, field 2450a is set as close as possible to when a send occurred. In an alternative embodiment, send processing feeding from queue 24 makes the record 2450 and inserts it to queue 1990 with a most accurate time of when the request was actually sent. Fields 2450a are to be as accurate as possible. Block 2324 sends/broadcasts the WDR request data 1302 (using send interface 1938) by inserting to queue 24 a record 2490 (2490a=the targeted MS ID (or pseudo MS ID) OR null if arrived to from block 2314, field 2490b=correlation generated at block 2318) so that send processing sends data 1302, for example as far as radius 1306. A null MS ID may be responded to by all MSs in the vicinity. A non-null MS ID is to be responded to by a particular MS. Presence of field 2490d indicates to send processing feeding from queue 24 to target the MS ID over the specified comm. interface (e.g. when MS has a plurality of comm. interfaces 70 (e.g. cellular, Wifi, Bluetooth, etc; i.e. MS supports multiple classes of wave spectrum)).
Referring back to block 2310, if a worker thread termination request was found at queue 1980, then block 2326 decrements the worker thread count by 1 (using appropriate semaphore access (e.g. 1932-Sem)), and thread 1932 processing terminates at block 2328. Block 2326 may also check the 1932-Ct value, and signal the process 1932 parent thread that all worker threads are terminated when 1932-Ct equals zero (0).
In the embodiment wherein usual MS communications data 1302 of the MS is altered to contain CK 1304 for listening MSs in the vicinity, send processing feeding from queue 24, caused by block 2324 processing, will place the WDR request as CK 1304 embedded in usual data 1302 at the next opportune time of sending usual data 1302. As the MS conducts its normal communications, transmitted data 1302 contains new data CK 1304 to be ignored by receiving MS other character 32 processing, but to be found by listening MSs within the vicinity which anticipate presence of CK 1304. This may require the alternative embodiment of adding the entry to queue 1990 being part of send processing. Otherwise, when LN-Expanse deployments have not introduced CK 1304 to usual data 1302 communicated on a receivable signal by MSs in the vicinity, FIG. 22 sends/broadcasts new WDR request data 1302.
An alternate embodiment to block 2324 can wait for a response with a reasonable timeout, thereby eliminating the need for blocks 2318 through 2322 which is used to correlate the subsequent response (to thread 1912) with the request sent at block 2324. However, this will cause a potentially unpredictable number of simultaneously executing thread(s) 1932 when many MSs are in the vicinity.
Thread(s) 1932 are useful when one or both parties to WDR transmission (sending and receiving MS) do not have NTP enabled. TDOA measurements are taken to triangulate the MS relative other MSs in real time.
FIG. 25 depicts a flowchart for describing a preferred embodiment of MS WDR request processing, for example when a remote MS requests (e.g. from FIG. 22 or 23) a WDR. Receive processing identifies targeted requests destined (e.g. FIG. 23) for the MS of FIG. 25 processing, and identifies general broadcasts (e.g. FIG. 22) for processing as well. FIG. 25 processing describes a process 1942 worker thread, and is of PIP code 6. Thread(s) 1942 purpose is for the MS of FIG. 25 processing to respond to incoming WDR requests. It is recommended that validity criteria set at block 1444 for 1942-Max be set as high as possible (e.g. 10) relative performance considerations of architecture 1900, to service multiple WDR requests simultaneously. Multiple channels for receiving data fed to queue 26 should be isolated to modular receive processing.
In an alternative embodiment having multiple receiving transmission channels visible to process 1942, there can be a worker thread 1942 per channel to handle receiving on multiple channels simultaneously. If thread(s) 1942 do not receive directly from the channel, the preferred embodiment of FIG. 25 would not need to convey channel information to thread(s) 1942 waiting on queue 24 anyway. Embodiments could allow specification/configuration of many thread(s) 1942 per channel.
Processing begins at block 2502, continues to block 2504 where the process worker thread count 1942-Ct is accessed and incremented by 1 (using appropriate semaphore access (e.g. 1942-Sem)), and continues to block 2506 for retrieving from queue 26 a record 2490 (using interface 1948), perhaps a special termination request entry, and only continues to block 2508 when a record 2490 is retrieved. Block 2506 stays blocked on retrieving from queue 26 until any record 2490 is retrieved. If block 2508 determines a special entry indicating to terminate was not found in queue 26, processing continues to block 2510. There are various embodiments for thread(s) 1912 and thread(s) 1942 to feed off a queue 26 for different record types, for example, separate queues 26A and 26B, or a thread target field with either record found at queue 26 (e.g. like field 2400a). In another embodiment, thread(s) 1912 are modified with logic of thread(s) 1942 to handle all records described for a queue 26, since thread(s) 1912 are listening for queue 26 data anyway.
Block 2510 peeks the WDR queue 22 (using interface 1944) for the most recent highest confidence entry for this MS whereabouts by searching queue 22 for: the MS ID field 1100a matching the MS ID of FIG. 25 processing, and a confidence field 1100d greater than or equal to the confidence floor value, and a most recent date/time stamp field 1100b within a prescribed trailing period of time of block 2510 search processing (e.g. 2 seconds). For example, block 2510 peeks the queue (i.e. makes a copy for use if an entry found for subsequent processing, but does not remove the entry from queue) for a WDR of the MS (of FIG. 25 processing) which has the greatest confidence over 75 and has been most recently inserted to queue 22 in the last 2 seconds. It is recommended that the trailing period of time used by block 2510 be never greater than a few seconds. Thread 1942 is of less value to the LN-expanse when it responds with outdated/invalid whereabouts of the MS to facilitate locating other MSs. In an alternate embodiment, a movement tolerance (e.g. user configured or system set (e.g. 3 meters)) is incorporated at the MS, or at service(s) used to locate the MS, for knowing when the MS has significantly moved (e.g. more than 3 meters) and how long it has been (e.g. 45 seconds) since last significantly moving. In this embodiment, the MS is aware of the period of time since last significantly moving and the trailing period of time used by block 2510 is set using the amount of time since the MS significantly moved, or the amount of time since significantly moving, whichever is greater. This way a large number of (perhaps more confident candidate) WDRs are searched in the time period when the MS has not significantly moved. Optional blocks 278 through 284 may have been incorporated to FIG. 2F for movement tolerance processing just described, in which case the LWT is compared to the current date/time to adjust the trailing period of time used by block 2510 for the correct trailing period. In any case, a WDR is sought at block 2510 to satisfy a request helping another MS in the LN-expanse locate itself.
Thereafter, if block 2512 determines a useful WDR was not found, then processing continues back to block 2506 for another loop iteration of processing an inbound WDR request. If block 2512 determines a useful WDR was found, then block 2514 prepares the WDR for send processing with correlation field 1100m set from correlation field 2490b retrieved at block 2506, and block 2516 sends/broadcasts (per field 2490a) the WDR information (using send interface 1946) by inserting to queue 24 so that send processing transmits data 1302, for example as far as radius 1306, and processing continues back to block 2506. At least fields 1100b, 1100c, 1100d, 1100m and 1100n are sent/broadcast. See FIG. 11A descriptions. Fields are set to the following upon exit from block 2514:
MS ID field 1100a is preferably set with: Field 2490a from queue 26.
DATE/TIME STAMP field 1100b is preferably set with: Field 1100b from queue 22.
LOCATION field 1100c is preferably set with: Field 1100c from queue 22.
CONFIDENCE field 1100d is preferably set with: Field 1100d from queue 22.
LOCATION TECHNOLOGY field 1100e is preferably set with: Field 1100e from queue 22.
LOCATION REFERENCE INFO field 1100f is preferably set with: null (not set) for Broadcast by send processing, otherwise set to field 2490d for Send by send processing.
COMMUNICATIONS REFERENCE INFO field 1100g is preferably set with: null (not set).
SPEED field 1100h is preferably set with: Field 1100h from queue 22.
HEADING field 1100i is preferably set with: Field 1100i from queue 22.
ELEVATION field 1100j is preferably set with: Field 1100j from queue 22.
APPLICATION FIELDS field 1100k is preferably set with: Field 1100k from queue 22. An alternate embodiment will add, alter, or discard data (with or without date/time stamps) here at the time of block 2514 processing.
CORRELATION FIELD 1100m is preferably set with: Field 2490b from queue 26.
SENT DATE/TIME STAMP field 1100n is preferably set with: Sent date/time stamp as close in processing the send/broadcast of block 2516 as possible.
RECEIVED DATE/TIME STAMP field 1100p is preferably set with: Not Applicable (i.e. N/A for sending).
Embodiments may rely completely on the correlation field 2490b with no need for field 2490a. Referring back to block 2508, if a worker thread termination request was found at queue 26, then block 2518 decrements the worker thread count by 1 (using appropriate semaphore access (e.g. 1942-Sem)), and thread 1942 processing terminates at block 2520. Block 2518 may also check the 1942-Ct value, and signal the process 1942 parent thread that all worker threads are terminated when 1942-Ct equals zero (0).
Block 2516 causes sending/broadcasting data 1302 containing CK 1304, depending on the type of MS, wherein CK 1304 contains WDR information prepared as described above for block 2514. Alternative embodiments of block 2510 may not search a specified confidence value, and broadcast the best entry available anyway so that listeners in the vicinity will decide what to do with it. A semaphore protected data access (instead of a queue peek) may be used in embodiments where there is always one WDR current entry maintained for the MS.
In the embodiment wherein usual MS communications data 1302 of the MS is altered to contain CK 1304 for listening MSs in the vicinity, send processing feeding from queue 24, caused by block 2516 processing, will place WDR information as CK 1304 embedded in usual data 1302 at the next opportune time of sending usual data 1302. If an opportune time is not timely, send processing should discard the send request of block 2516 to avoid broadcasting outdated whereabouts information (unless using a movement tolerance and time since last significant movement). As the MS conducts its normal communications, transmitted data 1302 contains new data CK 1304 to be ignored by receiving MS other character 32 processing, but to be found by listening MSs within the vicinity which anticipate presence of CK 1304. Otherwise, when LN-Expanse deployments have not introduced CK 1304 to usual data 1302 communicated on a receivable signal by MSs in the vicinity, FIG. 25 sends/broadcasts new WDR response data 1302. In any case, field 1100n should be as accurate as possible for when data 1302 is actually sent. Critical regions of code (i.e. prevent thread preemption) and/or anticipated execution timing may be used to affect a best setting of field 1100n. 
In an alternate embodiment, records 2490 contain a sent date/time stamp field 2490e of when the request was sent by a remote MS, and the received date/time stamp field 2490c is processed at the MS in FIG. 25 processing. This would enable block 2514 to calculate a TDOA measurement for returning in field 1100f of the WDR sent/broadcast at block 2516.
FIG. 26A depicts a flowchart for describing a preferred embodiment of MS whereabouts determination processing. FIG. 26A processing describes a process 1952 worker thread, and is of PIP code 6. Thread(s) 1952 purpose is for the MS of FIG. 26A processing to determine its own whereabouts with useful WDRs from other MSs. It is recommended that validity criteria set at block 1444 for 1952-Max be set as high as possible (e.g. 10) relative performance considerations of architecture 1900, to service multiple threads 1912. 1952-Max may also be set depending on what DLM capability exists for the MS of FIG. 26A processing. In an alternate embodiment, thread(s) 19xx are automatically throttled up or down (e.g. 1952-Max) per unique requirements of the MS as it travels.
Processing begins at block 2602, continues to block 2604 where the process worker thread count 1952-Ct is accessed and incremented by 1 (using appropriate semaphore access (e.g. 1952-Sem)), and continues to block 2606 for interim housekeeping of pruning the WDR queue by invoking a Prune Queues procedure of FIG. 27. Block 2604 may also check the 1952-Ct value, and signal the process 1952 parent thread that all worker threads are running when 1952-Ct reaches 1952-Max. Block 2606 may not be necessary since pruning may be accomplished at block 2620 when invoking FIG. 2F (block 292).
Thereafter, block 2608 retrieves from queue 1980 a record 2400 (using interface 1958), perhaps a special termination request entry, or a record 2400 received from thread(s) 1912, and only continues to block 2610 when a record 2400 containing field 2400a set to 1952 has been retrieved. Block 2608 stays blocked on retrieving from queue 1980 until a record 2400 with field 2400a=1952 is retrieved. If block 2610 determines a special entry indicating to terminate was not found in queue 1980, processing continues to block 2612.
Block 2612 peeks the WDR queue 22 (using interface 1954) for the most recent highest confidence entry for this MS whereabouts by searching queue 22 for: the MS ID field 1100a matching the MS ID of FIG. 26A processing, and a confidence field 1100d greater than or equal to the confidence floor value, and a most recent date/time stamp field 1100b within a prescribed trailing period of time of block 2612 search processing using a f(WTV) for the period. For example, block 2612 peeks the queue (i.e. makes a copy for use if an entry found for subsequent processing, but does not remove the entry from queue) for a WDR of the MS (of FIG. 26A processing) which has the greatest confidence over 75 and has been most recently inserted to queue 22 in the last 2 seconds. Since MS whereabouts accuracy may be dependent on timeliness of the WTV, it is recommended that the f(WTV) be some value less than or equal to WTV. In an alternate embodiment, a movement tolerance (e.g. user configured or system set (e.g. 3 meters)) is incorporated at the MS, or at service(s) used to locate the MS, for knowing when the MS has significantly moved (e.g. more than 3 meters) and how long it has been (e.g. 45 seconds) since last significantly moving. In this embodiment, the MS is aware of the period of time since last significantly moving and the f(WTV) is set using the amount of time since the MS significantly moved (i.e. f(WTV)=as described above, or the amount of time since significantly moving, whichever is greater). This way a large number of (perhaps more confident candidate) WDRs are searched in the time period when the MS has not significantly moved. Optional blocks 278 through 284 may have been incorporated to FIG. 2F for movement tolerance processing just described, in which case the LWT is compared to the current date/time to adjust the WTV for the correct trailing period.
Thereafter, if block 2614 determines a timely whereabouts for this MS already exists to queue 22 (current WDR found), then processing continues back to block 2606 for another loop iteration of processing. If 2614 determines a satisfactory WDR does not already exist in queue 22, then block 2600 determines a new highest confidence WDR for this MS (FIG. 26B processing) using queue 22.
Thereafter, if block 2616 determines a WDR was not created (BESTWDR variable=null) for the MS of FIG. 26A processing (by block 2600), then processing continues back to block 2606. If block 2616 determines a WDR was created (BESTWDR=WDR created by FIG. 26B) for the MS of FIG. 26A processing by block 2600, then processing continues to block 2618 for preparing FIG. 2F parameters and FIG. 2F processing is invoked with the new WDR at block 2620 (for interface 1956) before continuing back to block 2606. Parameters set at block 2618 are: WDRREF=a reference or pointer to the WDR completed at block 2600; DELETEQ=FIG. 26A location queue discard processing; and SUPER=FIG. 26A supervisory notification processing.
Referring back to block 2610, if a worker thread termination request was found at queue 1980, then block 2622 decrements the worker thread count by 1 (using appropriate semaphore access (e.g. 1952-Sem)), and thread 1952 processing terminates at block 2624. Block 2622 may also check the 1952-Ct value, and signal the process 1952 parent thread that all worker threads are terminated when 1952-Ct equals zero (0).
Alternate embodiments to FIG. 26A will have a pool of thread(s) 1952 per location technology (WDR field 1100e) for specific WDR field(s) selective processing. FIG. 26A processing is shown to be generic with handling all WDRs at block 2600.
FIG. 26B depicts a flowchart for describing a preferred embodiment of processing for determining a highest possible confidence whereabouts, for example in ILM processing, such as processing of FIG. 26A block 2600. Processing starts at block 2630, and continues to block 2632 where variables are initialized (BESTWDR=null, THIS_MS=null, REMOTE_MS=null). BESTWDR will reference the highest confidence WDR for whereabouts of the MS of FIG. 26B processing (i.e. this MS) upon return to FIG. 26A when whereabouts determination is successful, otherwise BESTWDR is set to null (none found). THIS_MS points to an appropriately sorted list of WDRs which were originated by this MS and are DLM originated (i.e. inserted by the DLM of FIG. 26B processing). REMOTE_MS points to an appropriately sorted list of WDRs which were originated by other MSs (i.e. from DLMs and/or ILMs and collected by the ILM of FIG. 26B processing).
Thereafter, block 2634 peeks the WDR queue 22 (using interface 1954) for most recent WDRs by searching queue 22 for: confidence field 1100d greater than or equal to the confidence floor value, and a most recent date/time stamp field 1100b within a prescribed trailing period of time of block 2634 search processing using a f(WTV) for the period. For example, block 2634 peeks the queue (i.e. makes a copy of all WDRs to a result list for use if any found for subsequent processing, but does not remove the entry(s) from queue) for all WDRs which have confidence over 75 and has been most recently inserted to queue 22 in the last 2 seconds. It is recommended that the f(WTV) used here be some value less than or equal to the WTV (want to be ahead of curve, so may use a percentage (e.g. 90%)), but preferably not greater than a couple/few seconds (depends on MS, MS applications, MS environment, whereabouts determination related variables, etc).
In an alternative embodiment, thread(s) 1952 coordinate with each other to know successes, failures or progress of their sister threads for automatically adjusting the trailing f(WTV) period of time appropriately. See “Alternative IPC Embodiments” below.
Thread 1952 is of less value to the MS when whereabouts are calculated using stale WDRs, or when not enough useful WDRs are considered. In an alternate embodiment, a movement tolerance (e.g. user configured or system set (e.g. 3 meters)) is incorporated at the MS, or at service(s) used to locate the MS, for knowing when the MS has significantly moved (e.g. more than 3 meters) and how long it has been (e.g. 45 seconds) since last significantly moving. In this embodiment, the MS is aware of the period of time since last significantly moving and the f(WTV) is set using the amount of time since the MS significantly moved (i.e. f(WTV)=as described above, or the amount of time since significantly moving, whichever is greater). This way a large number of (perhaps more confident candidates) WDRs are searched in the time period when the MS has not significantly moved. Optional blocks 278 through 284 may have been incorporated to FIG. 2F for movement tolerance processing just described, in which case the LWT is compared to the current date/time to adjust the WTV for the correct trailing period. In any case, all useful WDRs are sought at block 2634 and placed into a list upon exit from block 2634.
Thereafter, block 2636 sets THIS_MS list and REMOTE_MS list sort keys to be used at blocks 2644 and 2654. Blocks 2638 through 2654 will prioritize WDRs found at block 2634 depending on the sort keys made at block 2636. A number of variables may be used to determine the best sort keys, such as the time period used to peek at block 2634 and/or the number of entries in the WDR list returned by block 2634, and/or other variables. When the time period of search is small (e.g. less than a couple seconds), lists (THIS_MS and REMOTE_MS) should be prioritized primarily by confidence (fields 1100d) since any WDRs are valuable for determining whereabouts. This is the preferred embodiment.
When the time period is great, careful measure must be taken to ensure stale WDRs are not used (e.g. >few seconds, and not considering movement tolerance). Depending on decision embodiments, there will be preferred priority order sort keys created at exit from block 2636, for example “key1/key2/key3” implies that “key1” is a primary key, “key2” is a second order key, and “key3” is a third order key. A key such as “field-1100b/field-1100d/field-1100f:signal-strength” would sort WDRs first by using date/time stamp fields 1100b, then by confidence value fields 1100d (sorted within matching date/time stamp WDRs), then by signal-strength field 1100f sub-field values (sorted within matching WDR confidences; no signal strength present=lowest priority). Another sort key may be “field-1100d/field-1100b” for sorting WDRs first by using confidence values, then by date/time stamps (sorted within matching WDR confidences). The same or different sort keys can be used for lists THIS_MS and REMOTE_MS. Any WDR data (fields or subfields) can be sorted with a key, and sort keys can be of N order dimension such that “key1/key2/ . . . /keyN”. Whatever sort keys are used, block 2686 will have to consider confidence versus being stale, relative to the WTV. In the preferred embodiment, the REMOTE_MS and THIS_MS lists are set with the same sort keys of “field-1100d/field-1100b” (i.e. peek time period used at block 2634 is less than 2 seconds) so that confidence is primary.
Thereafter, block 2638 gets the first (if any) WDR in the list returned at block 2634 (also processes next WDR in list when encountered again in loop of blocks 2638 through 2654), and block 2640 checks to see if all WDRs have already been processed. If block 2640 finds that all WDRs have not been processed, then block 2642 checks the WDR origination. If block 2642 determines the WDR is one that originated from a remote MS (i.e. MS ID does not match the MS of FIG. 26B processing), then block 2644 inserts the WDR into the REMOTE_MS list using the desired sort key (confidence primary, time secondary) from block 2636, and processing continues to block 2638 for another loop iteration. If block 2642 determines the WDR is one that originated from this MS (MS ID field 1100a matches the MS of FIG. 26B processing (e.g. this MS being a DLM at the time of WDR creation (this MS ID=field 1100a) or this MS being an ILM at the time of WDR creation (previous processing of FIG. 26A)), then processing continues to block 2646 to determine how to process the WDR which was inserted by “this MS” for its own whereabouts.
Block 2646 accesses field 1100f for data found there (e.g. FIGS. 2D and 2E may have inserted useful TDOA measurements, even though DLM processing occurred; or FIG. 3C may have inserted useful TDOA and/or AOA measurements with reference station(s) whereabouts; or receive processing may have inserted AOA and related measurements). Thereafter, if block 2648 determines presence of TDOA and/or AOA data, block 2650 checks if reference whereabouts (e.g. FIG. 3C selected stationary reference location(s)) is also stored in field 1100f. If block 2650 determines whereabouts information is also stored to field 1100f, then block 2652 makes new WDR(s) from the whereabouts information containing at least the WDR Core and field 1100f containing the AOA and/or TDOA information as though it were from a remote DLM or ILM. Block 2652 also performs the expected result of inserting the WDR of loop processing into the THIS_MS list using the desired sort key from block 2636. Processing then continues to block 2644 where the newly made WDR(s) is inserted into the REMOTE_MS list using the desired sort key (confidence primary, time secondary) from block 2636. Block 2644 continues back to block 2638.
Referring back to block 2650, if it is determined that whereabouts information was not present with the AOA and/or TDOA information of field 1100f, then processing continues to block 2644 for inserting into the REMOTE_MS list (appropriately with sort key from block 2636) the currently looped WDR from block 2634. In-range location technology associates the MS with the antenna (or cell tower) location, so that field 1100c already contains the antenna (or cell tower) whereabouts, and the TDOA information was stored to determine how close the MS was to the antenna (or cell tower) at the time. The WDR will be more useful in the REMOTE_MS list, then if added to the THIS_MS list (see loop of blocks 2660 through 2680). Referring back to block 2648, if it is determined that no AOA and/or TDOA information was in field 1100f, then processing continues to block 2654 for inserting the WDR into the THIS_MS list (appropriately with sort key (confidence primary, time secondary) from block 2636).
Block 2654 handles WDRs that originated from the MS of FIG. 26B (this MS), such as described in FIGS. 2A through 9B, or results from previous FIG. 26A processing. Block 2644 maintains remote DLMs and/or ILMs (their whereabouts) to the REMOTE_MS list in hope WDRs contain useful field 1100f information for determining the whereabouts of the MS of FIG. 26B processing. Block 2652 handles WDRs that originated from the MS of FIG. 26B processing (this MS), but also processes fields from stationary references used (e.g. FIG. 3C) by this MS which can be helpful as though the WDR was originated by a remote ILM or DLM. Thus, block 2652 causes inserting to both lists (THIS_MS and REMOTE_MS) when the WDR contains useful information for both. Blocks 2652, 2654 and 2644 cause the iterative loop of blocks 2660 through 2680 to perform ADLT using DLMs and/or ILMs. Alternate embodiments of blocks 2638 through 2654 may use peek methodologies to sort from queue 22 for the REMOTE_MS and THIS_MS lists.
Referring back to block 2640, if it is determined that all WDRs in the list from block 2634 have been processed, then block 2656 initializes a DISTANCE list and ANGLE list each to null, block 2658 sets a loop iteration pointer to the first entry of the prioritized REMOTE_MS list (e.g. first entry higher priority than last entry in accordance with sort key used), and block 2660 starts the loop for working with ordered WDRs of the REMOTE_MS list. Exit from block 2640 to block 2656 occurs when the REMOTE_MS and THIS_MS lists are in the desired priority order for subsequent processing. Block 2660 gets the next (or first) REMOTE_MS list entry for processing before continuing to block 2662. If block 2662 determines all WDRs have not yet been processed from the REMOTE_MS list, then processing continues to block 2664.
Blocks 2664 and 2670 direct collection of all useful ILM triangulation measurements for TDOA, AOA, and/or MPT triangulation of this MS relative known whereabouts (e.g. other MSs). It is interesting to note that TDOA and AOA measurements (field 1100f) may have been made from different communications interfaces 70 (e.g. different wave spectrums), depending on interfaces the MS has available (i.e. all can participate). For example, a MS with blue-tooth, WiFi and cellular phone connectivity (different class wave spectrums supported) can be triangulated using the best available information (i.e. heterogeneous location technique). Examination of fields 1100f in FIG. 17 can show wave spectrums (and/or particular communications interfaces 70) inserted by receive processing for what the MS supports. If block 2664 determines an AOA measurement is present (field 1100f sub-field), then block 2666 appends the WDR to the ANGLE list, and processing continues to block 2668. If block 2664 determines an AOA measurement is not present, then processing continues to block 2670. If block 2670 determines a TDOA measurement is present (field 1100f sub-field), then block 2672 appends the WDR to the DISTANCE list, and processing continues to block 2674. Block 2674 uses WDRs for providing at least an in-range whereabouts of this MS by inserting to the THIS_MS list in sorted confidence priority order (e.g. highest confidence first in list, lowest confidence at end of list). Block 2674 continues to block 2668. Block 2674 may cause duplicate WDR(s) inserted to the THIS_MS list, but this will have no negative effect on selected outcome.
Block 2668 compares the ANGLE and DISTANCE lists constructed thus far from loop processing (blocks 2660 through 2682) with minimum triangulation requirements (e.g. see “Missing Part Triangulation (MPT)” above). Three (3) sides, three (3) angles and a side, and other known triangular solution guides will also be compared. Thereafter, if block 2676 determines there is still not enough data to triangulate whereabouts of this MS, then processing continues back to block 2660 for the next REMOTE_MS list entry, otherwise block 2678 maximizes diversity of WDRs to use for triangulating. Thereafter, block 2680 uses the diversified DISTANCE and ANGLE lists to perform triangulation of this MS, block 2682 inserts the newly determined WDR into the THIS_MS list in sort key order, and continues back to block 2660. Block 2680 will use heterogeneous (MPT), TDOA and/or AOA triangulation on ANGLE and DISTANCE lists for determining whereabouts.
Block 2682 preferably keeps track of (or checks THIS_MS for) what it has thus far determined whereabouts for in this FIG. 26B thread processing to prevent inserting the same WDR to THIS_MS using the same REMOTE_MS data. Repeated iterations of blocks 2676 through 2682 will see the same data from previous iterations and will use the best of breed data in conjunction with each other at each iteration (in current thread context). While inserting duplicates to THIS_MS at block 2682 does not cause failure, it may be avoided for performance reasons. Duplicate insertions are preferably avoided at block 2674 for performance reasons as well, but they are again not harmful. Block 2678 preferably keeps track of previous diversity order in this FIG. 26B thread processing to promote using new ANGLE and DISTANCE data in whereabouts determination at block 2680 (since each iteration is a superset of a previous iteration (in current thread context)). Block 2678 promotes using WDRs from different MSs (different MS IDs), and from MSs located at significantly different whereabouts (e.g. to maximize surrounded-ness), preferably around the MS of FIG. 26B processing. Block 2678 preferably uses sorted diversity pointer lists so as to not affect actual ANGLE and DISTANCE list order. The sorted pointer lists provide pointers to entries in the ANGLE and DISTANCE lists for a unique sorted order governing optimal processing at block 2680 to maximize unique MSs and surrounded-ness, without affecting the lists themselves (like a SQL database index). Different embodiments of blocks 2678 through 2682 should minimize inserting duplicate WDRs (for performance reasons) to THIS_MS which were determined using identical REMOTE_MS list data. Block 2682 causes using ADLT at blocks 2684 through 2688 which uses the best of breed whereabouts, either as originated by this MS maintained in THIS_MS list up to the thread processing point of block 2686, or as originated by remote MSs (DLMs and/or ILMs) processed by blocks 2656 through the start of block 2684.
Referring back to block 2662, if it is determined that all WDRs in the REMOTE_MS list have been processed, then block 2684 sets the BESTWDR reference to the head of THIS_MS (i.e. BESTWDR references first WDR in THIS_MS list which is so far the best candidate WDR (highest confidence) for this MS whereabouts, or null if the list is empty). It is possible that there are other WDRs with matching confidence adjacent to the highest confidence entry in the THIS_MS list. Block 2684 continues to block 2686 for comparing matching confidence WDRs, and if there are matches, then breaking a tie between WDRs with matching confidence by consulting any other WDR field(s) (e.g. field 1100f signal strength, or location technology field 1100e, etc). If there is still a tie between a plurality of WDRs, then block 2686 may average whereabouts to the BESTWDR WDR using the matching WDRs. Thereafter processing continues to block 2688 where the BESTWDR is completed, and processing terminates at block 2690. Block 2688 also frees resources (if any) allocated by FIG. 26B processing (e.g. lists). Blocks 2686 through 2688 result in setting BESTWDR to the highest priority WDR (i.e. the best possible whereabouts determined). It is possible that FIG. 26B processing causes a duplicate WDR inserted to queue 22 (at block 2620) for this MS whereabouts determination, but that is no issue except for impacting performance to queue 22. An alternate embodiment to queue 22 may define a unique index for erring out when inserting a duplicate to prevent frivolous duplicate entries, or block 2688 will incorporate processing to eliminate the chance of inserting a WDR of less use than what is already contained at queue 22. Therefore, block 2688 may include processing for ensuring a duplicate will not be inserted (e.g. null the BESTWDR reference) prior to returning to FIG. 26A at block 2690.
Averaging whereabouts at block 2686 occurs only when there are WDRs at the head of the list with a matching highest confidence value and still tie in other WDR fields consulted, yet whereabouts information is different. In this case, all matching highest confidence whereabouts are averaged to the BESTWDR to come up with whereabouts in light of all matching WDRs. Block 2686 performs ADLT when finalizing a single whereabouts (WDR) using any of the whereabouts found in THIS_MS (which may contain at this point DLM whereabouts originated by this MS and/or whereabouts originated by remote DLMs and/or ILMs). Block 2686 must be cognizant of sort keys used at blocks 2652 and 2654 in case confidence is not the primary key (time may be primary).
If no WDRs were found at block 2634, or no THIS_MS list WDRs were found at blocks 2652 and 2654, and no REMOTE_MS list entries were found at block 2644; or no THIS_MS list WDRs were found at blocks 2652 and 2654, and no REMOTE_MS list entries were found useful at blocks 2664 and/or 2670; then block 2684 may be setting BESTWDR to a null reference (i.e. none in list) in which case block 2686 does nothing. Hopefully, at least one good WDR is determined for MS whereabouts and a new WDR is inserted for this MS to queue 22, otherwise a null BESTWDR reference will be returned (checked at block 2616). See FIG. 11A descriptions. If BESTWDR is not null, then fields are set to the following upon exit from block 2688:
MS ID field 1100a is preferably set with: MS ID of MS of FIG. 26B processing.
DATE/TIME STAMP field 1100b is preferably set with: Date/time stamp of block 2688 processing.
LOCATION field 1100c is preferably set with: Resulting whereabouts after block 2688 completion.
CONFIDENCE field 1100d is preferably set with: WDR Confidence at THIS_MS list head.
LOCATION TECHNOLOGY field 1100e is preferably set with: “ILM TDOA Triangulation”, “ILM AOA Triangulation”, “ILM MPT Triangulation” or “ILM in-range”, as determined by the WDRs inserted to MS_LIST at blocks 2674 and 2682. The originator indicator is set to ILM.

LOCATION REFERENCE INFO field 1100f is preferably set with: null (not set), but may be set with contributing data for analysis of queue 22 provided it is marked for being overlooked by future processing of blocks 2646 and 2648 (e.g. for debug purpose).

COMMUNICATIONS REFERENCE INFO field 1100g is preferably set with: null (not set).

SPEED field 1100h is preferably set with: Block 2688 may compare prioritized entries and their order of time (field 1100b) in THIS_MS list for properly setting this field, if possible.

HEADING field 1100i is preferably set with: null (not set). Block 2688 may compare prioritized entries and their order of time (field 1100b) in THIS_MS list for properly setting this field, if possible.

ELEVATION field 1100j is preferably set with: Field 1100j of BESTWDR (may be averaged if WDR tie(s)), if available.

APPLICATION FIELDS field 1100k is preferably set with: Field(s) 1100k from BESTWDR or tie(s) thereof from THIS_MS. An alternate embodiment will add, alter, or discard data (with or without date/time stamps) here at the time of block 2688 processing.

CORRELATION FIELD 1100m is preferably set with: Not Applicable (i.e. not maintained to queue 22).

SENT DATE/TIME STAMP field 1100n is preferably set with: Not Applicable (i.e. not maintained to queue 22).

RECEIVED DATE/TIME STAMP field 1100p is preferably set with: Not Applicable (i.e. not maintained to queue 22).

Block 2680 determines whereabouts using preferred guidelines, such as whereabouts determined never results in a confidence value exceeding any confidence value used to determine whereabouts. Some embodiments will use the mean (average) of confidence values used, some will use the highest, and some the lowest of the WDRs used. Preferred embodiments tend to properly skew confidence values to lower values as the LN-Expanse grows away from region 1022. Blocks 2668 through 2680 may consult any of the WDR fields (e.g. field 1100f sub-fields yaw, pitch, roll; speed, heading, etc) to deduce the most useful WDR inputs for determining an optimal WDR for this MS whereabouts.
Alternative IPC Embodiments
Thread(s) 1952 are started for every WDR collected from remote MSs. Therefore, it is possible that identical new WDRs are inserted to queue 22 using the same WDR information at blocks 2634 of simultaneously executing threads 1952, but this will not cause a problem since at least one will be found when needed, and duplicates will be pruned together when appropriate. Alternative embodiments provide IPC (Interprocess Communications Processing) coordination between 1952 threads for higher performance processing, for example:

    
    
        As mentioned above, thread(s) 1952 can coordinate with each other to know successes, failures or progress of their sister 1952 thread(s) for automatically adjusting the trailing f(WTV) period of time appropriately. The f(WTV) period of time used at block 2634 would be semaphore accessed and modified (e.g. increased) for another 1952 thread when a previous 1952 thread was unsuccessful in determining whereabouts (via semaphore accessed thread outcome indicator). After a successful determination, the f(WTV) period of time could be reset back to the smaller window. One embodiment of increasing may start with 10% of the WTV, then 20% at the next thread, 30% at the next thread, up to 90%, until a successful whereabouts is determined. After successful whereabouts determination, a reset to its original starting value is made.
        A semaphore accessed thread 1952 busy flag is used for indicating a certain thread is busy to prevent another 1952 thread from doing the same or similar work. Furthermore, other semaphore protected data for what work is actually being performed by a thread can be informative to ensure that no thread 1952 starts for doing duplicated effort.
        Useful data of statistics 14 may be appropriately accessed by thread(s) 1952 for dynamically controlling key variables of FIG. 26B processing, such as the search f(WTV) time period, sort keys used, when to quit loop processing (e.g. on first successful whereabouts determination at block 2680), surrounded-ness preferences, etc. This can dynamically change the FIG. 26B logic from one thread to another for desired results.
    
    


FIG. 26B continues processing through every WDR retrieved at block 2634. An alternative embodiment will terminate processing after finding the first (which is highest priority data supported) successful triangulation at block 2682.
FIG. 27 depicts a flowchart for describing a preferred embodiment of queue prune processing. Queue pruning is best done on an interim basis by threads which may insert to the queue being pruned. In an alternate embodiment, a background asynchronous thread will invoke FIG. 27 for periodic queue pruning to ensure no queue which can grow becomes too large. The Prune Queues procedure starts at block 2702 and continues to block 2704 where parameters passed by a caller for which queue(s) (WDR and/or CR) to prune are determined. Thereafter, if block 2706 determines that the caller wanted to prune the WDR queue 22, block 2708 appropriately prunes the queue, for example discarding old entries using field 1100b, and processing continues to block 2710. If block 2706 determines that the caller did not want to prune the WDR queue 22, then processing continues to block 2710. If block 2710 determines that the caller wanted to prune the CR queue 1990, block 2712 appropriately prunes the queue, for example discarding old entries using field 2450a, and processing continues to block 2714. If block 2710 determines that the caller did not want to prune the CR queue 1990, then processing continues to block 2714. Block 2714 appropriately returns to the caller.
The current design for queue 1980 does not require FIG. 27 to prune it. Alternative embodiments may add additional queues for similar processing. Alternate embodiments may use FIG. 27 like processing to prune queues 24, 26, or any other queue under certain system circumstances. Parameters received at block 2704 may also include how to prune the queue, for example when using different constraints for what indicates entry(s) for discard.
FIG. 28 depicts a flowchart for describing a preferred embodiment of MS termination processing. Depending on the MS, there are many embodiments of processing when the MS is powered off, restarted, rebooted, reactivated, disabled, or the like. FIG. 28 describes the blocks of processing relevant to the present disclosure as part of that termination processing. Termination processing starts at block 2802 and continues to block 2804 for checking any DLM roles enabled and appropriately terminating if any are found (for example as determined from persistent storage variable DLMV). Block 2804 may cause the termination of thread(s) associated with enabled DLM role(s) for DLM processing above (e.g. FIGS. 2A through 9B). Block 2804 may invoke API(s), disable flag(s), or terminate as is appropriate for DLM processing described above. Such terminations are well known in the art of prior art DLM capabilities described above. Block 2804 continues to block 2806.
Blocks 2806 through 2816 handle termination of all processes/threads associated with the ILMV roles so there is no explicit ILMV check required. Block 2806 initializes an enumerated process name array for convenient processing reference of associated process specific variables described in FIG. 19, and continues to block 2808 where the first member of the set is accessed for subsequent processing. The enumerated set of process names has a prescribed termination order for MS architecture 1900. Thereafter, if block 2810 determines the process identifier (i.e. 19xx-PID such that 19xx is 1902, 1912, 1922, 1932, 1942, 1952 in a loop iteration of blocks 2808 through 2816) is greater than 0 (e.g. this first iteration of 1912-PID>0 implies it is to be terminated here; also implies process 1912 is enabled as used in FIGS. 14A, 28, 29A and 29B), then block 2812 prepares parameters for FIG. 29B invocation, and block 2814 invokes (calls) the procedure of FIG. 29B to terminate the process (of this current loop iteration (19xx)). Block 2812 prepares the second parameter in accordance with the type of 19xx process. If the process (19xx) is one that is slave to a queue for dictating its processing (i.e. blocked on queue until queue entry present), then the second parameter (process type) is set to 0 (directing FIG. 29A processing to insert a special termination queue entry to be seen by worker thread(s) for terminating). If the process (19xx) is one that is slave to a timer for dictating its processing (i.e. sleeps until it is time to process), then the second parameter (process type) is set to the associated 19xx-PID value (directing FIG. 29B to use in killing/terminating the PID in case the worker thread(s) are currently sleeping). Block 2814 passes the process name and process type as parameters to FIG. 29B processing. Upon return from FIG. 29B, block 2814 continues to block 2816. If block 2810 determines that the 19xx process is not enabled, then processing continues to block 2816. Upon return from FIG. 29B processing, the process is terminated and the associated 19xx-PID variable is already set to 0 (see blocks 2966, 2970, 2976 and 2922).
Block 2816 checks to see if all process names of the enumerated set (19xx) have been processed (iterated) by blocks 2808 through 2816. If block 2816 determines that not all process names in the set have been processed (iterated), then processing continues back to block 2808 for handling the next process name in the set. If block 2816 determines that all process names of the enumerated set were processed, then block 2816 continues to block 2818.
Block 2818 destroys semaphore(s) created at block 1220. Thereafter, block 2820 destroys queue(s) created at block 1218 (may have to remove all entries first in some embodiments), block 2822 saves persistent variables to persistent storage (for example to persistent storage 60), block 2824 destroys shared memory created at block 1212, and block 2826 checks the NTP use variable (saved prior to destroying shared memory at block 2824).
If block 2826 determines NTP is enabled, then block 2828 terminates NTP appropriately (also see block 1612) and processing continues to block 2830. If block 2826 determines NTP was not enabled, then processing continues to block 2830. Block 2828 embodiments are well known in the art of NTP implementations. Block 2828 may cause terminating of thread(s) associated with NTP use.
Block 2830 completes LBX character termination, then block 2832 completes other character 32 termination processing, and FIG. 28 processing terminates thereafter at block 2834. Depending on what threads were started at block 1240, block 2830 may terminate the listen/receive threads for feeding queue 26 and the send threads for sending data inserted to queue 24. Depending on what threads were started at block 1206, block 2832 may terminate the listen/receive threads for feeding queue 26 and the send threads for sending data inserted to queue 24 (i.e. other character 32 threads altered to cause embedded CK processing). Upon encounter of block 2834, the MS is appropriately terminated for reasons at set forth above for invoking FIG. 28.
With reference now to FIG. 29B, depicted is a flowchart for describing a preferred embodiment of a procedure for terminating a process started by FIG. 29A. When invoked by a caller, the procedure starts at block 2952 and continues to block 2954 where parameters passed are determined. There are two parameters: the process name to terminate, and the type of process to terminate. The type of process is set to 0 for a process which has worker threads which are a slave to a queue. The type of process is set to a valid O/S PID when the process worker threads are slave to a timer.
Thereafter, if block 2956 determines the process type is 0, then block 2958 initializes a loop variable J to 0, and block 2960 inserts a special termination request queue entry to the appropriate queue for the process worker thread to terminate. See FIG. 19 discussions for the queue inserted for which 19xx process name.
Thereafter, block 2962 increments the loop variable by 1 and block 2964 checks if all process prescribed worker threads have been terminated. Block 2964 accesses the 19xx-Max (e.g. 1952-Max) variable from shared memory using a semaphore for determining the maximum number of threads to terminate in the process worker thread pool. If block 2964 determines all worker threads have been terminated, processing continues to block 2966 for waiting until the 19xx-PID variable is set to disabled (e.g. set to 0 by block 2922), and then to block 2978 which causes return to the caller. Block 2966 uses a preferred choice of waiting described for blocks 2918 and 2920. The 19xx process (e.g. 1952) will have its 19xx-PID (e.g. 1952-PID) variable set at 0 (block 2922) when the process terminates. In some embodiments, the waiting methodology used at block 2966 may use the 19xx-PID variable, or may be signaled by the last terminating worker thread, or by block 2922.
If block 2964 determines that not all worker threads have been terminated yet, then processing continues back to block 2960 to insert another special termination request queue entry to the appropriate queue for the next process worker thread to terminate. Blocks 2960 through 2964 insert the proper number of termination queue entries to the same queue so that all of the 19xx process worker threads terminate.
Referring back to block 2956, if it is determined the process type is not 0 (i.e. is a valid O/S PID), then block 2968 inserts a special WDR queue 22 entry enabling a queue peek for worker thread termination. The reader will notice that the process termination order of block 2806 ensures processes which were slaves to the WDR queue 22 have already been terminated. This allows processes which are slaves to a timer to see the special termination queue entry inserted at block 2968 since no threads (which are slaves to queue) will remove it from queue 22. Thereafter, block 2970 waits until the 19xx process name (parameter) worker threads have been terminated using a preferred choice of waiting described for blocks 2918 and 2920. The 19xx process (e.g. 1902) will have its 19xx-PID (e.g. 1902-PID) variable set at 0 (block 2922) when the process terminates. In some embodiments, the waiting methodology used at block 2970 may use the 19xx-PID variable, or may be signaled by the last terminating worker thread, or by block 2922. Block 2970 also preferably waits for a reasonable timeout period in anticipation of known sleep time of the 19xx process being terminated, for cases where anticipated sleep times are excessive and the user should not have to wait for lengthy FIG. 28 termination processing. If the timeout occurs before the process is indicated to be terminated, then block 2970 will continue to block 2972. Block 2970 also continues to block 2972 when the process has successfully terminated.
If block 2972 determines the 19xx process did terminate, the caller is returned to at block 2978 (i.e. 19xx-PID already set to disabled (0)). If block 2972 determines the 19xx process termination timed out, then block 2974 forces an appropriate O/S kill to the PID thereby forcing process termination, and block 2976 sets the 19xx-PID variable for disabled (i.e. process 19xx was terminated). Thereafter, block 2978 causes return to the caller.
There are many embodiments for setting certain queue entry field(s) identifying a special queue termination entry inserted at blocks 2960 and 2968. Some suggestions: In the case of terminating thread(s) 1912, queue 26 insertion of a WDR preferably sets the MS ID field with a value that will never appear in any other case except a termination request (e.g. −100). In the case of terminating thread(s) 1902, 1922 and 1952, queue 22 insertion of a WDR preferably sets the MS ID field with a value that will never appear in any other case except a termination request (e.g. −100). In the case of terminating thread(s) 1942, queue 26 insertion of a WDR request preferably sets the MS ID field with a value that will never appear in any other case except a termination request (e.g. −100). In the case of terminating thread(s) 1932, queue 1980 insertion of a thread request queue record 2400 preferably sets field 2400a with a value that will never appear in any other case except a termination request (e.g. −100). Of course, any available field(s) can be used to indicate termination to particular thread(s)).
Terminating threads of processing in FIG. 29B has been presented from a software perspective, but there are hardware/firmware thread embodiments which may be terminated appropriately to accomplish the same functionality. If the MS operating system does not have an interface for killing the PID at block 2974, then blocks 2972 through 2976 can be eliminated for relying on a FIG. 28 invocation timeout (incorporated for block 2814) to appropriately rob power from remaining thread(s) of processing.
An ILM has many methods and systems for knowing its own location. LBX depends on MSs maintaining their own whereabouts. No service is required to maintain the whereabouts of MSs in order to accomplish novel functionality.
Other Embodiments
As mentioned above, architecture 1900 provides a set of processes which can be started or terminated for desired functionality. Thus, architecture 1900 provides a palette from which to choose desired deployment methods for an LN expanse.
In some embodiments, all whereabouts information can be pushed to expand the LN-expanse. In such embodiments, the palette of processes to choose from includes at least process 1902, process 1912 and process 1952. Additionally, process 1932 would be required in anticipation of LN-expanse participating data processing systems having NTP disabled or unavailable. Additionally, process 1922 could be used for ensuring whereabouts are timely (e.g. specifically using all blocks except 2218 through 2224). Depending on DLM capability of MSs in the LN-expanse, a further subset of processes 1902, 1912, 1952 and 1932 may apply. Thread(s) 1902 beacon whereabouts information, regardless of the MS being an affirmifier or pacifier.
In some embodiments, all whereabouts information can be pulled to expand the LN-expanse. In such embodiments, the palette of processes to choose from includes at least process 1922 (e.g. specifically using all blocks except 2226 and 2228), process 1912, process 1952 and process 1942. Additionally, process 1932 would be required in anticipation of LN-expanse participating data processing systems having NTP disabled or unavailable. Depending on DLM capability of MSs in the LN-expanse, a further subset of processes 1922, 1912, 1952, 1942 and 1932 may apply.
There are many embodiments derived from architecture 1900. Essential components are disclosed for deployment varieties. In communications protocols which acknowledge a transmission, processes 1932 may not be required even in absence of NTP use. A sending MS appends a sent date/time stamp (e.g. field 1100n) on its time scale to outbound data 1302 and an acknowledging MS (or service) responds with the sent date/time stamp so that when the sending MS receives it (receives data 1302 or 1312), the sending MS (now a receiving MS) calculates a TDOA measurement by comparing when the acknowledgement was received and when it was originally sent. Appropriate correlation outside of process 1932 deployment enables the sending MS to know which response went with which data 1302 was originally sent. A MS can make use of 19xx processes as is appropriate for functionality desired.
In push embodiments disclosed above, useful summary observations are made. Service(s) associated with antennas periodically broadcast (beacon) their reference whereabouts (e.g. WDR information) for being received by MSs in the vicinity. When such services are NTP enabled, the broadcasts include a sent date/time stamp (e.g. field 1100n). Upon receipt by a NTP enabled MS in the vicinity, the MS uses the date/time stamp of MS receipt (e.g. 1100p) with the date/time stamp of when sent (e.g. field 1100n) to calculate a TDOA measurement. Known wave spectrum velocity can translate to a distance. Upon receipt of a plurality of these types of broadcasts from different reference antennas, the MS can triangulate itself for determining its whereabouts relative known whereabouts of the reference antennas. Similarly, reference antennas are replaced by other NTP enabled MSs which similarly broadcast their whereabouts. A MS can be triangulated relative a mixture of reference antennas and other NTP enabled MSs, or all NTP enabled MSs. Stationary antenna triangulation is accomplished the same way as triangulating from other MSs. NTP use allows determining MS whereabouts using triangulation achievable in a single unidirectional broadcast of data (1302 or 1312). Furthermore, reference antennas (service(s)) need not communicate new data 1312, and MSs need not communicate new data 1302. Usual communications data 1312 are altered with a CK 1314 as described above. Usual communications data 1302 are altered with a CK 1304 as described above. This enables a MS with not only knowing there are nearby hotspots, but also where all parties are located (including the MS). Beaconing hotspots, or other broadcasters, do not need to know who you are (the MS ID), and you do not need to know who they are in order to be located. Various bidirectional correlation embodiments can always be used for TDOA measurements.
In pull embodiments disclosed above, data processing systems wanting to determine their own whereabouts (requestors) broadcast their requests (e.g. record 2490). Service(s) or MSs (responders) in the vicinity respond. When responders are NTP enabled, the responses include a sent date/time stamp (e.g. field 1100n) that by itself can be used to calculate a TDOA measurement if the requestor is NTP enabled. Upon receipt by a requestor with no NTP, the requestor uses the date/time stamp of a correlated receipt (e.g. 1100p) with the date/time stamp of when sent (e.g. fields 1100n or 2450a) to calculate a time duration (TDOA) for whereabouts determination, as described above. New data or usual communications data applies as described above.
If NTP is available to a data processing system, it should be used whenever communicating date/time information (e.g. NTP bit of field 1100b, 1100n or 1100p) so that by chance a receiving data processing is also NTP enabled, a TDOA measurement can immediately be taken. In cases, where either the sending (first) data processing system or receiving (second) data processing system is not NTP enabled, then the calculating data processing system wanting a TDOA measurement will need to calculate a sent and received time in consistent time scale terms. This includes a correlated bidirectional communications data flow to properly determine duration in time terms of the calculating data processing system. In a send initiated embodiment, a first (sending) data processing system incorporates a sent date/time stamp (e.g. fields 1100n or 2450a) and determines when a correlated response is received to calculate the TDOA measurement (both times in terms of the first (sending) data processing system). In another embodiment, a second (receiving) data processing system receives a sent date/time stamp (e.g. field 1100n) and then becomes a first (sending) data processing as described in the send initiated embodiment. Whatever embodiment is used, it is beneficial in the LN-expanse to minimize communications traffic.
The NTP bit in date/time stamps enables optimal elegance in the LN-expanse for taking advantage of NTP when available, and using correlated transmissions when it is not. A NTP enabled MS is somewhat of a chameleon in using unidirectional data (1302 or 1312 received) to determine whereabouts relative NTP enabled MS(s) and/or service(s), and then using bidirectional data (1302/1302 or 1302/1312) relative MS(s) and/or service(s) without NTP. A MS is also a chameleon when considering it may go in and out of a DLM or ILM identity/role, depending on what whereabouts technology is available at the time.
The MS ID (or pseudo MS ID) in transmissions is useful for a receiving data processing system to target a response by addressing the response back to the MS ID. Targeted transmissions target a specific MS ID (or group of MS IDs), while broadcasting is suited for reaching as many MS IDs as possible. Alternatively, just a correlation is enough to target a data source.
In some embodiments where a MS is located relative another MS, this is applicable to something as simple as locating one data processing system using the location of another data processing system. For example, the whereabouts of a cell phone (first data processing system) is used to locate an in-range automotive installed (second) data processing system for providing new locational applications to the second data processing system (or visa-versa). In fact, the second data processing may be designed for using the nearby first data processing system for determining its whereabouts. Thus, as an MS roams, in the know of its own whereabouts, the MS whereabouts is shared with nearby data processing systems for new functionality made available to those nearby data processing systems when they know their own whereabouts (by associating to the MS whereabouts). Data processing systems incapable of being located are now capable of being located, for example locating a data processing equipped shopping cart with the location of an MS, or plurality of MSs.
Architecture 1900 presents a preferred embodiment for IPC (Interprocess Communications Processing), but there are other embodiments for starting/terminating threads, signaling between processes, semaphore controls, and carrying out present disclosure processing without departing from the spirit and scope of the disclosure. In some embodiments, threads are automatically throttled up or down (e.g. 1952-Max) per unique requirements of the MS as determined by how often threads loop back to find an entry already waiting in a queue. If thread(s) spend less time blocked on queue, they can be automatically throttled up. If thread(s) spend more time blocked on queue, they can be automatically throttled down. Timers can be associated with queue retrieval to keep track of time a thread is blocked.
LBX history 30 preferably maintains history information of key points in processing where history information may prove useful at a future time. Some of the useful points of interest may include:

    
    
        Interim snapshots of permissions 10 (for documenting who had what permissions at what time) at block 1478;
        Interim snapshots of charters 12 (for documenting charters in effect at what times) at block 1482;
        Interim snapshots of statistics 14 (for documenting useful statistics worthy of later browse) at block 1486;
        Interim snapshots of service propagation data of block 1474;
        Interim snapshots of service informant settings of block 1490;
        Interim snapshots of LBX history maintenance/configurations of block 1494;
        Interim snapshots of a subset of WDR queue 22 using a configured search criteria;
        Interim snapshots of a subset of Send queue 24 using a configured search criteria;
        Interim snapshots of a subset of Receive queue 26 using a configured search criteria;
        Interim snapshots of a subset of PIP data 8;
        Interim snapshots of a subset of data 20;
        Interim snapshots of a subset of data 36;
        Interim snapshots of other resources 38;
        Trace, debug, and/or dump of any execution path subset of processing flowcharts described; and/or
        Copies of data at any block of processing in any flowchart heretofore described.

Entries in LBX history 30 preferably have entry qualifying information including at least a date/time stamp of when added to history, and preferably an O/S PID and O/S TID (Thread Identifier) associated with the logged entry, and perhaps applicable applications involved (e.g. see fields 1100k). History 30 may also be captured in such a way there are conditions set up in advance (at block 1494), and when those conditions are met, applicable data is captured to history 30. Conditions can include terms that are MS system wide, and when the conditions are met, the data for capture is copied to history. In these cases, history 30 entries preferably include the conditions which were met to copy the entry to history. Depending on what is being kept to history 30, this can become a large amount of information. Therefore, FIG. 27 can include new blocks for pruning history 30 appropriately. In another embodiment, a separate thread of processing has a sleeper loop which when awake will prune the history 30 appropriately, either in its own processing or by invoking new FIG. 27 blocks for history 30. A parameter passed to processing by block 2704 may include how to prune the history, including what data to prune, how old of data to prune, and any other criteria appropriate for maintaining history 30. In fact, any pruning by FIG. 27 may include any reasonable parameters for how to prune particular data of the present disclosure.

    
    


Location applications can use the WDR queue for retrieving the most recent highest confidence entry, or can access the single instance WDR maintained (or most recent WDR of block 289 discussed above). Optimally, applications are provided with an API that hides what actually occurs in ongoing product builds, and for ensuring appropriate semaphore access to multi-threaded accessed data.
Correlation processing does not have to cause a WDR returned. There are embodiments for minimal exchanges of correlated sent date/time stamps and/or received date/time stamps so that exchanges are very efficient using small data exchanges. Correlation of this disclosure was provided to show at least one solution, with keeping in mind that there are many embodiments to accomplish relating time scales between data processing systems.
Architecture 1900 provides not only the foundation for keeping an MS abreast of its whereabouts, but also the foundation upon which to build LBX nearby functionality. Whereabouts of MSs in the vicinity are maintained to queue 22. Permissions 10 and charters 12 can be used for governing which MSs to maintain to queue 22, how to maintain them, and what processing should be performed. For example, MS user Joe wants to alert MS user Sandy when he is in her vicinity, or user Sandy wants to be alerted when Joe is in her vicinity. Joe configures permissions enabling Sandy to be alerted with him being nearby, or Sandy configured permissions for being alerted. Sandy accepts the configuration Joe made, or Joe accepts the configuration Sandy made. Sandy's queue 22 processing will ensure Joe's WDRs are processed uniquely for desired functionality.
FIG. 8C was presented in the context of a DLM, however architecture 1900 should be applied for enabling a user to manually request to be located with ILM processing if necessary. Blocks 862 through 870 are easily modified to accomplish a WDR request (like blocks 2218 through 2224). In keeping with current block descriptions, block 872 would become a new series of blocks for handling the case when DLM functionality was unsuccessful. New block 872-A would broadcast a WDR request soliciting response (see blocks 2218 through 2224). Thereafter, a block 872-B would wait for a brief time, and subsequently a block 872-C would check to see if whereabouts have been determined (e.g. check queue 22). Thereafter, if a block 872-D determines whereabouts were not determined, an error could be provided to the user, otherwise the MS whereabouts were successfully determined and processing continues to block 874. Applications that may need whereabouts can now be used. There are certainly emergency situations where a user may need to rely on other MSs in the vicinity for being located.
To maintain modularity in interfaces to queues 24 and 26, parameters may be passed rather than having the modular send/receive processing access fields of application records. When WDRs are “sent”, the WDR will be targeted (e.g. field 1100a), perhaps also with field 1100f indicating which communications interface to send on (e.g. MS has plurality of comm. interfaces 70). When WDRs are “broadcast” (e.g. null MS ID), the WDR is preferably outbound on all available comm. interfaces 70), unless field 1100f indicates to target a comm. interface. Analogously, when WDR requests are “sent”, the request will be targeted (e.g. field 2490a), perhaps also with field 2490d indicating which communications interface to send on (e.g. MS has plurality of comm. interfaces 70). When WDR requests are “broadcast” (e.g. null MS ID), the WDR is preferably outbound on all available comm. interfaces 70), unless field 1100f indicates to target a comm. interface.
Fields 1100m, 1100n, 1100p, 2490b and 2490c are also of interest to the transport layer. Any subset, or all, of transport related fields may be passed as parameters to send processing, or received as parameters from receiving processing to ensure send and receive processing is adaptable using pluggable transmission/reception technologies.
An alternate embodiment to the BESTWDR WDR returned by FIG. 26B processing may be set with useful data for reuse toward a future FIG. 26B processing thread whereabouts determination. Field 1100f (see pg. 168) can be set with useful data for that WDR to be in turn used at a subsequent whereabouts determination of FIG. 26B. This is referred to as Recursive Whereabouts Determination (RWD) wherein ILMs determine WDRs for their whereabouts and use them again for calculating future whereabouts (by populating useful TDOA, AOA, MPT and/or whereabouts information to field 1100f).
An alternate embodiment may store remote MS movement tolerances (if they use one) to WDR field 1100f so the receiving MS can determine how stale are other WDRs in queue 22 from the same MS, for example when gathering all useful WDRs to start with in determining whereabouts of FIG. 26B processing (e.g. block 2634). Having movement tolerances in effect may prove useful for maximizing useful WDRs used in determining a whereabouts (FIG. 26B processing).
While various embodiments of the present disclosure have been described above, it should be understood that they have been presented by way of example only, and not limitation. Thus, the breadth and scope of the present disclosure should not be limited by any of the above-described exemplary embodiments, but should be defined only in accordance with the following claims and their equivalents.

## Claims

1. A method, comprising:
determining, by a mobile data processing system, a plurality of locations of the mobile data processing system, each location of the plurality of locations determined by at least one of a plurality of distinctly different whereabouts determination methods implemented by the mobile data processing system;
storing, by the mobile data processing system, to a historical collection a plurality of whereabouts data records for the mobile data processing system wherein each record of the plurality of whereabouts data records for the mobile data processing system includes a particular location of the plurality of locations determined by the at least one of the plurality of distinctly different whereabouts determination methods implemented by the mobile data processing system;
storing, by the mobile data processing system, to the historical collection a plurality of whereabouts data records for a plurality of remote data processing systems wherein each record of the plurality of whereabouts data records for the plurality of remote data processing systems includes a particular location of a particular remote data processing system of the plurality of remote data processing systems;
periodically searching, by the mobile data processing system, the historical collection for at least one whereabouts data record the mobile data processing system determines includes a current location of the mobile data processing system;
determining, by the mobile data processing system, the historical collection does not contain the at least one whereabouts data record the mobile data processing system determines includes the current location of the mobile data processing system, upon the searching;
initiating, by the mobile data processing system, whereabouts determination by at least one of the plurality of distinctly different whereabouts determination methods implemented by the mobile data processing system, upon the determining, by the mobile data processing system, the historical collection does not contain the at least one whereabouts data record the mobile data processing system determines includes the current location of the mobile data processing system;
determining, by the mobile data processing system, the current location of the mobile data processing system using the at least one of the plurality of distinctly different whereabouts determination methods implemented by the mobile data processing system, upon the initiating; and
storing, by the mobile data processing system, to the historical collection a current whereabouts data record for the mobile data processing system wherein the current whereabouts data record includes the current location of the mobile data processing system.

2. The method of claim 1 wherein the determining, by the mobile data processing system, the current location of the mobile data processing system includes determining the current location of the mobile data processing system using Missing Part Triangulation processing with access to the historical collection.

3. The method of claim 1 including the mobile data processing system transmitting outbound the current location of the mobile data processing system for receipt by at least one receiving data processing system in the wireless vicinity of the mobile data processing system.

4. The method of claim 1 including presenting information of the historical collection to a user interface for a user to manage the information of the historical collection by at least one of: view the information of the historical collection, delete the information of the historical collection, modify the information of the historical collection, or add to the information of the historical collection.

5. The method of claim 1 including providing an alert for who is nearby.

6. The method of claim 1 including maintaining the plurality of whereabouts data records for the plurality of remote data processing systems according to a permission configured by a particular user.

7. A method, comprising:
maintaining whereabouts timeliness information for controlling whereabouts determination timeliness of at least one whereabouts determination method implemented by a mobile data processing system;
storing first data to the whereabouts timeliness information for controlling whereabouts determination timeliness of the at least one whereabouts determination method implemented by the mobile data processing system;
determining whereabouts of the mobile data processing system according to the first data of the whereabouts timeliness information for controlling whereabouts determination timeliness of the at least one whereabouts determination method implemented by the mobile data processing system;
determining with Application Programming Interface processing at the mobile data processing system a most demanding requirement of whereabouts determination for a plurality of applications executing at the mobile data processing system, wherein each application of the plurality of applications invokes the Application Programming Interface with a particular requirement for the whereabouts determination timeliness, the most demanding requirement of whereabouts determination corresponding to the particular requirement which is most timely for the plurality of applications;
adjusting the whereabouts timeliness information, upon the determining with Application Programming Interface processing at the mobile data processing system the most demanding requirement of whereabouts determination for the plurality of applications executing at the mobile data processing system, by storing the most demanding requirement of whereabouts determination as second data to the whereabouts timeliness information for controlling whereabouts determination timeliness of the at least one whereabouts determination method implemented by the mobile data processing system; and
determining whereabouts of the mobile data processing system according to the second data of the whereabouts timeliness information for controlling whereabouts determination timeliness of the at least one whereabouts determination method implemented by the mobile data processing system.

8. The method of claim 7 wherein the determining whereabouts of the mobile data processing system according to the second data includes determining the whereabouts of the mobile data processing system using Missing Part Triangulation processing.

9. The method of claim 7 including the mobile data processing system transmitting outbound the whereabouts of the mobile data processing system for receipt by at least one receiving data processing system in the wireless vicinity of the mobile data processing system.

10. A method, comprising:
maintaining whereabouts timeliness information for controlling whereabouts determination timeliness of at least one whereabouts determination method implemented by a mobile data processing system;
storing first data to the whereabouts timeliness information for controlling whereabouts determination timeliness of the at least one whereabouts determination method implemented by the mobile data processing system;
determining whereabouts of the mobile data processing system according to the first data of the whereabouts timeliness information for controlling whereabouts determination timeliness of the at least one whereabouts determination method implemented by the mobile data processing system;
determining with background processing of the mobile data processing system when to perform an adjustment to the whereabouts timeliness information for controlling whereabouts determination timeliness of the at least one whereabouts determination method implemented by the mobile data processing system;
adjusting the whereabouts timeliness information, upon the determining with background processing of the mobile data processing system when to perform the adjustment, by storing second data to the whereabouts timeliness information for controlling whereabouts determination timeliness of the at least one whereabouts determination method implemented by the mobile data processing system; and
determining whereabouts of the mobile data processing system according to the second data of the whereabouts timeliness information for controlling whereabouts determination timeliness of the at least one whereabouts determination method implemented by the mobile data processing system.

11. The method of claim 10 including:
storing, by the mobile data processing system, the whereabouts of the mobile data processing system to a historical collection containing a plurality of whereabouts data records wherein each record of the plurality of whereabouts data records includes a location of the mobile data processing system determined by at least one of a plurality of distinctly different whereabouts determination methods implemented by the mobile data processing system; and
determining whereabouts of the mobile data processing system using Missing Part Triangulation processing on at least one data field from each of the plurality of whereabouts data records that include the location of the mobile data processing system.

12. The method of claim 10 including:
storing, by the mobile data processing system, a plurality of whereabouts data records for a plurality of remote data processing systems to a historical collection wherein each record of the plurality of whereabouts data records for the plurality of remote data processing systems includes a particular location of a particular remote data processing system of the plurality of remote data processing systems; and
determining whereabouts of the mobile data processing system using Missing Part Triangulation processing on at least one data field from each of the plurality of whereabouts data records for the plurality of remote data processing systems.

13. The method of claim 10 including:
storing, by the mobile data processing system, the whereabouts of the mobile data processing system to a historical collection containing a plurality of whereabouts data records wherein each record of the plurality of whereabouts data records includes a location of the mobile data processing system determined by at least one of a plurality of distinctly different whereabouts determination methods implemented by the mobile data processing system;
storing, by the mobile data processing system, a plurality of whereabouts data records for a plurality of remote data processing systems to the historical collection wherein each record of the plurality of whereabouts data records for the plurality of remote data processing systems includes a particular location of a particular remote data processing system of the plurality of remote data processing systems; and
determining whereabouts of the mobile data processing system using Missing Part Triangulation processing on at least one data field from each of:
at least one data record of the plurality of whereabouts data records that include the location of the mobile data processing system, and
at least one data record of the plurality of whereabouts data records for the plurality of remote data processing systems.

14. The method of claim 10 including the mobile data processing system transmitting outbound the whereabouts of the mobile data processing system for receipt by at least one receiving data processing system in the wireless vicinity of the mobile data processing system.

15. The method of claim 10 wherein the determining with background processing of the mobile data processing system when to perform the adjustment includes determining with background processing of the mobile data processing system that the most recently determined whereabouts of the mobile data processing system is stale or may become stale.

16. The method of claim 10 wherein the determining with background processing of the mobile data processing system when to perform the adjustment includes determining with background processing of the mobile data processing system when a statistic maintained for the mobile data processing system substantiates performing the adjustment.

17. The method of claim 10 wherein the determining with background processing of the mobile data processing system when to perform the adjustment includes determining with background processing of the mobile data processing system for one or more mobile data processing system threads of execution at least one of: success, failure, or progress.

18. The method of claim 10 wherein the determining with background processing of the mobile data processing system when to perform the adjustment includes determining with background processing of the mobile data processing system that there is excessive processing being performed for the at least one whereabouts determination method implemented by the mobile data processing system.

19. The method of claim 10 wherein the determining with background processing of the mobile data processing system when to perform the adjustment includes determining with background processing of the mobile data processing system a time describing when the mobile data processing system most recently significantly moved.