Patent Publication Number: US-8116812-B2

Title: Systems and methods for providing wireless communications for data and voice communications

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This application is a continuation of U.S. application Ser. No. 12/647,647, filed Dec. 28, 2009 now U.S. Pat. No. 7,890,137 which is a continuation of U.S. application Ser. No. 11/075,433, filed Mar. 7, 2005 (now U.S. Pat. No. 7,657,284), the entireties of which are herein incorporated by reference. 
    
    
     BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention relates in general to data and voice communications in a wireless environment, and in particular, to providing a wireless replacement terminal for data and voice applications provided by a service provider for home and small business wired communications. 
     2. Description of the Related Art 
     The use of fast Internet connections has grown rapidly over the recent few years. As more people buy home and office computers and create home or office networks, the demand for versatile broadband high-speed connections steadily increases. 
     When a user requires voice and data applications, such as by connecting to the Internet, they might connect through a dial-up modem, a local-area-network (LAN) connection in their office, through a cable modem, or through a digital subscriber line (DSL) connection, as shown in  FIG. 4 . A DSL connection (and several variations on DSL technology, e.g., ADSL, HDSL, ISDL, MSDSL, RADSL, SDSL, VDSL, VoDSL and the like) has numerous advantages over the above-mentioned methods. 
     For example, using a DSL connection, an Internet connection may be left open while a phone line is simultaneously used for voice calls. DSL is a very high-speed connection that uses the same wires as a regular telephone line, so little additional hardware is required. However, the main disadvantage to DSL is that the service is not available everywhere and it is limited by a wire-line connection, as shown in  FIG. 6 . 
     There have been attempts to solve this problem. However, no complete solution is available that offers static and dynamic host configuration protocol (DHCP) over wireless facilities to a customer&#39;s location that could directly (or indirectly via 802.11, Bluetooth, or the like) connect to service providers using wireless facilities. Other attempts to solve this problem have been attempted but require point-to-point connectivity and do not permit connectivity to the public switch telephone network (PSTN). These conventional solutions are limited by range, topography and do not facilitate the use of dial tones. 
     Consequently, there is a need to provide broadband service to remote areas where a regular telephone line may not be available. A new housing development and/or a home not wired for broadband facilities may benefit from a wireless terminal which includes both data and voice applications capabilities. 
     SUMMARY OF THE INVENTION 
     An object of the invention is to provide systems and methods that provide a wireless communications system including a wireless terminal for data and voice broadband applications for home and small business wired communications. 
     The wireless communications system provides communication for a plurality of communication devices. The wireless communications system includes an interface including a local exchange carrier (LEC) connection port, a subscriber connection port and a wireless connection port. The wireless communications system includes a wireless terminal connected to the interface that provides wireless data and voice connectivity over a wireless network. 
     The wireless communications system may be implemented as a stand alone device or a backup for conventional land-line systems. The wireless communications system includes a processor, a data transmission portion and a voice transmission portion. The data transmission portion includes a data connectivity device, a maintenance device and a router. The voice transmission portion includes a wireless device, a voice interface adapter and a ringing generator to simulate an incoming call ringing tone. 
     The wireless terminal may be provided as a direct replacement for, or to augment, conventional wire-line broadband facilities that are currently implemented into businesses or homes. 
     In accordance with systems and methods of this invention, subscriber&#39;s now have a wireless alternative to existing wire-line services. Remote customers now have the option to subscribe to broadband services in locations where an Internet service provider may not offer broadband services. 
     In accordance with another aspect of this invention, a method is provided that provides wireless data and voice connectivity over a wireless network for a plurality of communication devices. The method includes providing an interface including a local exchange carrier (LEC) connection port, a subscriber connection port and a wireless connection port. The subscriber connection port is connected to the wireless connection port, and a wireless terminal is connected to the wireless connection port in the interface. 
     The present invention addresses the shortcomings identified above by providing a wireless terminal in a wireless communications system for wire-line facilities that provide broadband transmission of data and voice in accordance with systems and methods of this invention. 
     These and other objects, features, and/or advantages may accrue from various aspects of embodiments of the present invention, as described in more detail below. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       Various exemplary embodiments of this invention will be described in detail, wherein like reference numerals refer to identical or similar components or steps, with reference to the following figures, wherein: 
         FIG. 1  is an exemplary functional diagram of a wireless communication system in accordance with systems and methods of this invention. 
         FIG. 2  is an exemplary functional diagram of a wireless terminal in the wireless communication system in accordance with systems and methods of this invention. 
         FIG. 3  is an exemplary diagram of a network interface. 
         FIG. 4  is an exemplary diagram of a network interface in accordance with this invention. 
         FIG. 5  is an exemplary diagram of a network interface in accordance with this invention. 
         FIG. 6  is an exemplary illustration of a DSL configuration. 
     
    
    
     DETAILED DESCRIPTION OF EXEMPLARY EMBODIMENTS 
     This invention overcomes the conventional problems described above by providing wireless broadband data and voice connectivity. Particular embodiments of the present invention will now be described in greater detail with reference to the figures. 
       FIG. 1  shows an exemplary diagram of a wireless communications system  10  for home and business wired communications that provides wireless broadband data and voice connectivity. Implementations of the wireless communications system  10  may be ideal for remote and temporary locations, such as a trailer at a building site, a kiosk in a shopping mall, at a flee market, and/or any other location that would require instant connectivity where wire-line connectivity may not be immediately available. 
     The wireless communications system  10  includes a wireless terminal  12  that provides the broadband connectivity for voice and data. The wireless terminal  12  may include all of the same types of services that a commercially available DSL service or a cable modem service could provide. However, instead of using conventional wire-line facilities (such as shown by reference  34  of the wire line path in  FIG. 4 ), no wires are necessary to connect from the wireless terminal  12  to a cellular station  14  over a wire line network  19 . 
     As shown in  FIG. 1 , it is no longer necessary (B) to provide a wire-line connection  14  (such as a DSL line) from a network interface  13  to a Local Exchange carrier&#39;s (LEC) communications facilities  15  (or central office (CO)). Instead, the wireless terminal  12  may be connected to the network interface  13  at the home or office. As such, one or more telephones  16  may be connected to the wireless communications system  10  via the network interface  13 . 
       FIG. 1  also shows that various workstations  17  may be connected with a hub  18  directly to the wireless terminal  12 . The workstations  17  may be wired  37  and/or wirelessly connected  38  through the hub  18  to the wireless terminal  12 . Although not shown, it is also possible to incorporate a private branch exchange (PBX) with the wireless communications system  10  so that an end to end connection may be made to facilitate a number of phone connections to the wireless communications system  10 . 
     As with conventional wireless mobile devices, the wireless communications system  10  includes a cellular station  14  that operates over the wireless network  19 , such as a cellular wireless network. The wireless network  19  may operate in accordance with a variety of commercially available technology network system protocols, including for example, TDMA, GSM, CDMA, UMTS, GPRS, PBX or any other technology network system now known or later developed. Those skilled in the art will appreciate that the present invention may be implemented in various other wireless and radio frequency data transmission systems, including networks utilizing EDGE, FDMA, WCDMA, OFDM, and similar communications protocols. 
     According to systems and methods of this invention, it is evident that many alternatives, modifications and variations of the components parts described in this invention can be rearranged and will be apparent to those skilled in the art. Various changes may be made without departing from the spirit and scope of the invention, such as incorporating more than one network interface  13 , adapting the wireless terminal  12  to receive various types of now known or later developed wireless devices, such as a PDA, a facsimile, data communication devices, telephones and the like. 
       FIG. 2  illustrates an exemplary configuration for the wireless terminal  12 . The wireless terminal  12  serves as a modem having wireless capabilities to transmit both voice and data transmissions. 
     The wireless terminal  12  includes all of the circuitry that would mimic the LEC communications facilities (or CO), such as subscriber loop circuitry (SLC) to connect a telephone company&#39;s CO to a demarcation point, or the network interface  13  at a customer&#39;s premise. The wireless terminal  12  meets all standard two-wire and four-wire PBX and CO interface requirements. The subscriber loop carrier equipment may include cable, digital subscriber line modem circuits, interfaces, dial tone and ringing generator supplies and the like. 
     The wireless terminal  12  may be incorporated with various known components, such as a firewall, various routers, dynamic host controller protocol (DHCP), and connectivity via a processor to provide all of the services that are needed. Various services may also be provided by the wireless terminal  12 , such as routing services, masquerading for address translation, DHCP for addressing, and other services now known or later developed. 
     The wireless terminal  12  serves as the connectivity to and from the cellular station  14  and the network interface  13 . The wireless terminal  12  may include additional network components that would be similar to a DSL wire-line system, such as shown is  FIGS. 1 and 6 , including a firewall, a router, power and control and all other components that are encompassed in a wire-line broadband service coming up to a network interface  13  on a two-wire and/or a four-wire network. 
     The wireless communications system  10  may operate in a home or an office a variety of different ways. That is, the wireless terminal  12  may serve as a stand alone wireless communications system. Alternatively, the wireless terminal  12  may be combined with and provided to augment another service, such as a wire-line service (e.g., DSL or cable), and/or even as a backup system to the wire-line system. 
     For example, the wireless communications system  10  may be incorporated to augment a wire-line service facility such that if the connectivity from the wire-line service facility fails, the wireless communications system  10  can alternatively provide backup wireless connectivity. According to this embodiment, it is possible to provide broadband facilities without going through a subscriber loop interface. 
     According to systems and methods of this invention, the wireless terminal  12  can functionally replace all wire-line facilities (such as the wire-line DSL system shown in  FIG. 6 ) up to a network interface  13  located at a home or a business. As shown in  FIG. 2 , the wireless terminal  12  includes a data transmission portion  300  and a voice transmission portion  400 . 
     Data Connectivity Portion 
     The data transmission portion  300  of the wireless terminal  12  includes an antenna  5  for sending and receiving signals to and from the cellular station  14  under the control of a processor  30  provided within the wireless terminal  12 . The processor  30  may be equipped with a wireless data connectivity device  20  that communicates data across the wireless terminal  12  connected to a local access network (LAN). The wireless data connectivity device  20  may be implemented as a smart card attached to the processor  30  of the wireless terminal  12 . The wireless data connectivity device  20  may operate over a wireless network in accordance with at least one of various data and voice connect services, such as for example, as an EDGE card, a 3G capable card, 2G-1/2, GPRS, UMTS and/or any other similar connect service now known or later developed that is capable of transmitting data. In the alternative to a smart card, the wireless data connectivity may be implemented as part of circuitry in the processor  30 . Furthermore, a maintenance device  40  may be implemented with the processor  30  to provide various types of functionality, such as providing a software package that provides router/firewall/DHCP/Masquerading and router functionality. 
     The processor  30  may be implemented on a programmed general purpose computer. The processor  30  may also be implemented on a special purpose computer, a programmed microprocessor or micro-controller and peripheral integrated circuit elements, an ASIC or other integrated circuit, a digital signal processor, a hardwired electronic or logic circuit such as a discrete element circuit, a programmable logic device such as a PLD, PLA, FPGA or PAL, or the like. 
     The processor  30  may be implemented using any appropriate combination of alterable, volatile or non-volatile memory or non-alterable, or fixed, memory. The alterable memory, whether volatile or non-volatile, may be implemented using any one or more of static or dynamic RAM, a floppy disk and disk drive, a write-able or rewrite-able optical disk and disk drive, a hard drive, flash memory or the like. Similarly, the non-alterable or fixed memory may be implemented using any one or more of ROM, PROM, EPROM, EEPROM, an optical ROM disk, such as a CD-ROM or DVD-ROM disk, and disk drive or the like. 
     Although numerous variations are possible, according to systems and methods of this invention, the data transmission portion  300  may be connected by a router  50  (and/or DHCP) through a local access network (LAN)  110  connection into a demarcation point and/or interconnection between telephone company communications facilities and the subscriber&#39;s premises. 
     As shown in  FIG. 2 , the network interface  13  is provided at the subscriber&#39;s premises and defines the demarcation point for the carrier and the subscriber.  FIG. 3  shows an exemplary illustration of the network interface  13  which may be provided to bring in the POTS/DSL line and/or a broadband service provider (or the like) from a carrier. 
     As shown in  FIG. 3 , a cable  21  is generally connected from the subscriber portion (SP) of the network interface  13  to a central office portion (COP) of the network interface  13  through which the POTS line is connected. However, in accordance with this invention,  FIG. 4  illustrates a cable  22  may be connected from the subscriber portion (SP) of the network interface  13  to a wireless portion (WP). The wireless portion (WP) on the network interface  13  is the location where the wireless terminal  12  may be attached so that the subscriber may receive data and voice connectivity from the wireless terminal  12  of the wireless communications system  10 . The central office portion (COP) of the network interface  13  is unaffected. It is understood that the wireless terminal  12  may serve as a stand alone broadband system (as shown in  FIG. 4 ) to the subscriber and/or the wireless terminal  12  may be provided to augment, or as a backup, for another wire-line broadband service wireless portion (WP) as shown in  FIG. 5 . As such, the subscriber portion (SP) of the network interface  13  may be connected to the central office portion (COP) by a first cable  21  and to the wireless portion (WP) by a second cable  22 . 
     Referring back to  FIG. 2 , a digital subscriber line access multiplexer  60  (DSLAM), or asynchronous transfer mode (ATM), or similar, may be provided as part of the wireless terminal  12  to provide connectivity to the wireless portion (WP) of the network interface  13 . In an integrated voice/data application, the digital subscriber line multiplexer (DSLAM)  60  or ATM multiplexes the data and voice packets from the customer and transmits the packets over one or more high-speed circuits. The voice packets are forwarded to the public switched telephone network (PSTN), or perhaps an IP voice network, and the data packets are forwarded to the Internet, often over an ATM-based data network. 
     According to another aspect of the invention, provisioning and maintenance may be accessible over the wireless network  19 , for example through either Short Messaging Service (SMS) or Unstructured Supplementary Services Data (USSD). 
     The data transmission portion  300  of  FIG. 2  between router  50  and the network interface  13  may be optional. In particular, this invention may be simplified by reducing the number of components on the data transmission portion  300  to a basic set of core components which combine certain distinct elements, for example, the filters, modems, etc. 
     Voice Connectivity Portion 
       FIG. 2  also shows an exemplary illustration of the voice transmission portion  400  of the wireless terminal  12 . 
     The voice transmission portion  400  of the wireless terminal  12  may be connected to the processor  30  and also includes an antenna  5  that allows a wireless device  70  (such as a device that includes the mobile circuitry/technology of a mobile phone) to communicate voice signals to and from the wireless terminal  12  and the cellular station  14  over the wireless network  19 . In  FIG. 2 , the wireless device  70  is connected with a voice interface adapter  80  and a ringing generator  90 . 
     Voice connectivity is provided by the voice interface adapter  80  and the ringing generator  90 . The voice interface adapter  80  is combined with the ringing generator  90  for simulating a ringing tone for the wireless device  70  when incoming calls are received by the wireless communications system. The ringing generator  90  may, for example, provide audio at a superimposed ringing current voltage of .+−0.105V @ 20 Hz. over 48V talk battery. 
     The voice interface adapter  80  provides the dialing digit capabilities (e.g., DTMF) for dialing an outgoing call from wireless device  70  of the wireless terminal  12 . The voice interface adapter  80  also provides simplexing the ring generator onto a two-wire (or four-wire) circuit that would resemble a plain old telephone (POTS) line into a house so that a phone coupled to the voice transmission portion  400  circuit rings just like a phone that was plugged into a wire-line facility from a CO. 
     Similar to conventional DSL lines, at the interface, the wireless terminal  12  may include a pair of wires that originate within the wireless terminal  12  and extend to the customer&#39;s network interface  13  as with a POTS line. The voice and data may be simplexed on the wires for the wireless broadband wireless terminal  12 . In order to separate the data from the voice information being transmitted across the pairs of wires, a filter may be provided that separates the voice and the data apart so that the data transmission portion  300  may be coupled to a modem. The voice transmission portion  400  may be provided with filters so that the broadband carrier may be filtered from the voice. As such, the data transmission portion  300  would resemble a voice line from a POTS line. 
     The network components in the voice transmission portion  400  of  FIG. 2  between the voice interface adapter  80  and the network interface  13  are optional. Their functionality, including circuitry, software and hardware may be incorporated into other components in the wireless terminal  12 . 
     A number of various wireless communication devices may be used in accordance with systems and methods of this invention, such as for example, a cellular phone, a PDA, an SMS device, an MMS device, and/or any other communications device now known or later developed. 
     Operation 
     In operation, when there is little or no activity, the wireless communications system  10  may operate in an idle mode. That is, an idle mode would be a state in which little activity is occurring because the subscriber is not presently making any data or voice requests, such as where the subscriber makes a phone call, requests a web page or email. 
     When a subscriber desires to make a phone call from the home or office, the subscriber will receive a dial tone when she lifts the receiver. In response, the subscriber may enter the number to be called for a particular destination. When the last number is received, a request may be transmitted over the wireless network  19  back to a CO  15  to initiate a call. The call would be set up and established over the wireless network  19  from the subscriber to the party called in a manner that is similar to other cellular calls made with a mobile phone that is presently known or later developed in accordance with systems and methods of this invention. 
     Similarly, a request for a data session application (such as a request for recalling a web page) may be initiated when a particular button (like clicking on a “Go” button on a search engine) is selected to request information from the Internet. At that time, the router  50  may be activated and may activate other supporting services (such as with GPRS) necessary for establishing the data session connection. The data session connection may be set up and established over the wireless network  19  from the subscriber to the destination address in a manner that is similar to other data session connections procedures that are presently known or later developed in accordance with systems and methods of this invention. 
     The wireless communications system  10  may incorporate a time-out feature (perhaps by integrating timers) for use when a request for services is not performed within a predetermined period of time. When the predetermined period of time is reached and the particular request for either data or voice has not been completed, the wireless communications system  10  may time out and proceed into an idle state. Appropriate messages may be sent back to the subscriber informing the subscriber of the status of the attempted request for service. 
     When an incoming call is transmitted to the subscriber, the wireless device  70  may send a request to the voice interface adapter  80  to audibly ring the subscriber via the ringing generator  90 . At least one phone connected to the wireless terminal  12  would ring to notify the subscriber of the incoming call. The wireless terminal  12  may be provided with as much intelligence as a CO in that certain available applications could also be integrated, such as caller ID, call forwarding and the like. The wireless route that the incoming call would take may be completely transparent to the subscriber and she may not be able to distinguish the difference between the call coming in from the wireless communications system  10  and an incoming call connection made by a POTS line. 
     Billing may be implemented and tracked in a variety of different ways which are now know or later developed in accordance with systems and methods of this invention. 
     While this invention has been described in conjunction with the exemplary embodiments outlined above, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art. Accordingly, the exemplary embodiments of the invention, as set forth above, are intended to be illustrative, not limiting. Various changes may be made without departing from the spirit and scope of the invention.