Source: http://www.google.com/patents/US6332080?dq=5359317
Timestamp: 2014-03-17 15:26:46
Document Index: 520490657

Matched Legal Cases: ['art 1', 'art 2', 'art 3', 'art 4', 'art 5', 'art 6', 'art 7', 'art 8', 'art 9', 'art 10']

Patent US6332080 - Process for controlling the establishment and operation of paths of ... - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsIn wire-free telecommunications systems, in particular in a DECT-specific RLL/WLL system which is included as a local message transmission loop in an ISDM system, in order to optimize the setting up and use of transmission paths with respect to the number of transmission paths for wire-free message transmission,...http://www.google.com/patents/US6332080?utm_source=gb-gplus-sharePatent US6332080 - Process for controlling the establishment and operation of paths of transmission (bearers) in a wireless telecommunication system, in particular in a dect-specific RLL/WLL system bound into an ISDN-system as a local information transmission loopAdvanced Patent SearchPublication numberUS6332080 B1Publication typeGrantApplication numberUS 09/202,165PCT numberPCT/DE1997/001144Publication dateDec 18, 2001Filing dateJun 6, 1997Priority dateJun 24, 1996Fee statusLapsedAlso published asCA2259035A1, CA2259035C, CN1098013C, CN1220073A, DE19625161A1, DE19625161C2, DE59711996D1, EP0908071A1, EP0908071B1, WO1997050273A1Publication number09202165, 202165, PCT/1997/1144, PCT/DE/1997/001144, PCT/DE/1997/01144, PCT/DE/97/001144, PCT/DE/97/01144, PCT/DE1997/001144, PCT/DE1997/01144, PCT/DE1997001144, PCT/DE199701144, PCT/DE97/001144, PCT/DE97/01144, PCT/DE97001144, PCT/DE9701144, US 6332080 B1, US 6332080B1, US-B1-6332080, US6332080 B1, US6332080B1InventorsMartin KordsmeyerOriginal AssigneeSiemens AktiengesellschaftExport CitationBiBTeX, EndNote, RefManPatent Citations (9), Non-Patent Citations (15), Referenced by (2), Classifications (12), Legal Events (6) External Links: USPTO, USPTO Assignment, EspacenetProcess for controlling the establishment and operation of paths of transmission (bearers) in a wireless telecommunication system, in particular in a dect-specific RLL/WLL system bound into an ISDN-system as a local information transmission loopUS 6332080 B1Abstract In wire-free telecommunications systems, in particular in a DECT-specific RLL/WLL system which is included as a local message transmission loop in an ISDM system, in order to optimize the setting up and use of transmission paths with respect to the number of transmission paths for wire-free message transmission, transmission path numbers are assigned to the transmission paths such that collisions are avoided during the setting up and use of the transmission paths (links). In this way, the resources of the radio interface are used efficiently. In addition, the complexity of the telecommunications systems and the susceptibility to faults when setting up links (setting up the transmission paths) are minimized.
What is claimed is: 1. A method for controlling setting up and use of transmissions paths between radio transmitting/radio receiving devices in wire-free telecommunications systems, comprising the steps of:
a) setting up transmission paths between a first radio transmitting/radio receiving device and a second radio transmitting/radio receiving device in a telecommunications system; b) assigning the transmission paths transmission path numbers; c) transmitting system-specific messages on the transmission paths in transmission channels with channel-specific transmission capacities; d) setting up via the radio transmitting/radio receiving devices a first transmission path for transmitting the system messages in a first transmission channel with a first channel-specific transmission capacity, such that the first transmission path is reserved, in a predetermined order, a first transmission path number, as to initiate and realize a change of channel on the first transmission path. 2. The method according to claim 1, wherein a reservation of the first transmission path number for the first transmission path for transmitting the system messages in the first transmission channel with the first channel-specific transmission capacity is canceled, and a second transmission path number is assigned to and reserved for a second transmission path for transmitting the system messages in the first transmission channel with the first channel-specific transmission capacity if the first transmission path has been set up for transmitting the system messages in a second transmission channel with a second channel-specific transmission capacity.
9. The method according to claim 1, wherein the telecommunications system is an �IS-54� system or a PDC system.
BACKGROUND OF THE INVENTION In telecommunications systems having a message transmission route between a message source and a message sink, transmitting and receiving devices are used for message processing and transmission, in which
3) the message transmission is wire-based over the trunk transmission, or is carried out wire-free on the basis of various message transmission methods FDMA (Frequency Division Multiple Access), (Time Division Multiple Access) and/or CDMA (Code Division Multiple Access)�for example in accordance with radio standards such as DECT, GSM, WACS or PACS, IS-54, PHS, PDC etc. (cf. IEEE Communications Magazine, January 1995, pages 50 to 57; D. D. Falconer et al: �Time Division Multiple Access Methods for Wireless Personal Communications�).
�Message� is a generic term which covers both the useful content (information) and the physical representation (signal). Despite a message having the same useful content�that is to say the same information�different signal forms may occur. Thus, for example, a message relating to a circuit may be transmitted
Using as references the documents �Nachrichtentechnik Elektronik (Telecommunications electronics), Berlin 45 (1995) Issue 1, pages 21 to 23 and Issue 3 pages 29 and 30� as well as IEE Colloguium 1993, 173; (1993), pages 29/1-29/7; W. Hing, F. Halsall: �Cordless access to the ISDN basic rate service�, and on the basis of a DECT/ISDN Intermediate System DIIS according to ETSI Publication prETS 300xxx, Version 1.10, September 1996, FIG. 1 shows an �ISDN⇄DECT-specific RLL/WLL� Telecommunications system IDRW-TS with an ISDN telecommunications subsystem I-TTS (cf. document �Nachrichtentechnik Elektronik (Telecommunications electronics ), Berlin 41-43, Parts: 1 to 10, Part 1: (1991) Issue 3, pages 99 to 102; Part 2: (1991) Issue 4, pages 138 to 143; Part 3: (1991) Issue 5, pages 179 to 182 and Issue 6, pages 219 to 220; Part 4 (1991) Issue 6, pages 220 to 222 and (1992) Issue 1, pages 19 to 20; Part 5: (1992) Issue 2, pages 59 to 62 and (1992) Issue 3, pages 99 to 102; Part 6: (1992) Issue 4, pages 150 to 153; Part 7: (1992) Issue 6, pages 238 to 241; Part 8: (1993) Issue 1, pages 29 to 33; Part 9: (1993) Issue 2, pages 95 to 97 and (1993) Issue 3, pages 129 to 135; Part 10: (1993) Issue 4, pages 187 to 190;�) and a DECT-specific RLL/WLL telecommunications subsystem RW-TTS.
The DECT/ISDN Intermediate System DIIS and the RLL/WLL telecommunications subsystem RW-TTS are in this case preferably based on a DECT/GAP-System DGS (Digital Enhanced (previously: European) Cordless Telecommunication; cf. (1): Nachrichtentechnik Elektronik 42 (1992) January/February No. 1, Berlin, DE; U. Pilger �Struktur des DECT-Standards� (Structure of the DECT standard), pages 23 to 29 in conjunction with the ETSI publication ETS 300175-1 . . . 9, October 1992; (2): Telecom Report 16 (1993), No. 1, J. H. Koch: �Digitaler Komfort f�r schnurlose Telekommunikation�DECT-Standard er�ffnet neue Nutzungsgebiete� (Digital convenience for wire-free telecommunication�DECT standard opens up new fields of application), pages 26 and 27; (3): tec 2/93�Das technische Magazin von Ascom �Wege zur universellen mobilen Telekommunikation� (The technical magazine from Ascom �Means for universal mobile telecommunication�), pages 35 to 42; (4) Philips Telecommunication Review Vol. 49, No. 3, September 1991, R. J. Mulder: �DECT, a universal cordless access system�; (5): WO 93/21719 (FIGS. 1 to 3 with associated description)). The GAP standard (Generic Access Profile) is a subset of the DECT standard which has the task of ensuring interoperability of the DECT radio interface for telephone applications (cf. ETSI publication prETS 300444, April 1995).
The DECT/ISDN Intermediate System DIIS and the RLL/WLL telecommunications subsystem RW-TTS can alternatively be based on a GSM system (Groupe Sp�ciale Mobile or Global System for Mobile Communication; cf. Informatik Spektrum 14 (1991) June, No. 3, Berlin, DE; A. Mann: �Der GSM-Standard�Grundlage f�r digitale europ�ische Mobilfunknetze (The GSM standard�Basis for digital European mobile radio networks)�, pages 137 to 152). Instead of this, it is also possible in the context of a hybrid telecommunications system for the ISDN telecommunications subsystem I-TTS to be designed as a GSM system.
In the �ISDN⇄DECT specific RLL/WLL� telecommunications system IDRW-TS according to FIG. 1, a telecommunications subscriber (user) TCU (Tele-Communication User) with TE (Terminal Endpoint; Terminal Equipment), is included in the ISDN world, with the services available in it, for example via a standardized S interface (S-BUS), the DECT/ISDN Intermediate System DIIS, which is designed as a local message transmission loop�is preferably DECT-specific and is contained in the RLL/WLL telecommunications subsystem RW-TTS�(first telecommunications subsystem), a further standardized S interface (S-BUS), a Network Termination NT and a standardized U interface of the ISDN telecommunications subsystem I-TTS (second telecommunications subsystem).
Based on the document �Nachrichtentechnik Elektronik� (Telecommunications electronics) 42 (1992) January/February, No. 1, Berlin, DE; U. Pilger; �Struktur des DECT-Standards (Structure of the DECT standard)�, pages 23 to 29, in conjunction with ETS 300 175-1 . . . 9, October 1992�, FIG. 2 shows the TDMA structure of the DECT/GAP system DGS. The DECT/GAP system is a hybrid system with respect to the multiple access methods, in which radio messages can be transmitted, using the FDMA principle, on ten frequencies in the frequency band between 1.88 and 1.90 GHz and, using the TDMA principle according to FIG. 2, can be transmitted in a predetermined time sequence from the base station RFP to the portable part RPP and from the portable part RPP to the base station RFP (duplex operation). The time sequence is in this case governed by a multiple time frame MZR, which occurs every 160 ms and has 16 time frames ZR, each having a time duration of 10 ms. Information items are transmitted separately in these time frames ZR to the base station RFP and the portable part RPP, these information items relating to a C-, M-, N-, P-, Q-channel defined in the DECT standard. If information items for a number of these channels are transmitted in one time frame ZR, then the transmission is carried out on the basis of a priority list where M>C>N and P>N. Each of the 16 time frames ZR in the multiple time frame MZR is in turn split into 24 time slots ZS each having a time duration of 417 μs, of which 12 time slots ZS (time slots 0 . . . 11) are intended for the transmission direction �base station RFP→portable part RPP�, and a further 12 time slots ZS (time slots 12 . . . 23) for the transmission direction �portable part RPP→base station RFP�. In accordance with the DECT standard, information items with a bit length of 480 bits are transmitted in each of these time slots. Of these 480 bits, 32 bits are transmitted as synchronization information in a sync field, and 388 bits as useful information in a D field. The remaining 60 bits are transmitted as additional information in a Z field and as protection information in a �guard time� field. The 388 bits in the D field which are transmitted as useful information are in turn split into a 64-bit long A field, a 320-bit long B field and a 4-bit long �X-CRC� word. The 64-bit A field is composed of an 8-bit long data header, a 40-bit long data set with data for the C-, Q-, M-, N-, P-channels and a 16-bit long �A-CRC� word.
On the basis of the OSI/ISO layer model (cf. (1): Information sheets�Deutsche Telekom Year 48, February 1995, pages 102 to 111; (2): ETSI publication ETS 300175-1 . . . 9, October 1992; (3): ETSI publication ETS 300102, February 1992; (4): ETSI publication ETS 300125, September 1991; (5): ETSI publication ETS 300012, April 1992), FIG. 3 shows a model of the C plane in the �ISDN⇄DECT specific RLL/WLL� telecommunications system IDRW-TS according to FIG. 1.
On the basis of the OSI/ISO layer model (cf. (1): Information sheets�Deutsche Telekom Year 48, February 1995, pages 102 to 111; (2): ETSI publication ETS 300175-1 . . . 9, October 1992; (3): ETSI publication ETS 300102, February 1992; (4): ETSI publication ETS 300125, September 1991; (5): ETSI publication ETS 300012, April 1992), FIG. 4 shows a model of the U plane for voice data transmission in the �ISDN⇄DECT specific RLL/WLL� telecommunications system IDRW-TS according to FIG. 1.
The Cs channel structure offers optimum bandwidth economy for a standard voice link, since only one transmission path (bearer)�for example MBC to the LCNy, LCN1 according to FIG. 5�one link or one time slot is required according to FIG. 5 and on the basis of FIGS. 3 and 4, and taking account of the ETSI publications (ETS 300175-1, October 1992, Chapter 7; ETS 300175-3, October 1992, Chapter 4.1; ETS 300175-4, October 1992, Chapter 4).
According to FIG. 5 and on the basis of FIGS. 3 and 4 and taking account of the ETSI publications (ETS 300175-1, October 1992, Chapter 7; ETS 300175-3, October 1992, Chapter 4.1; ETS 300175-4, October 1992 Chapter 4), the use of the Cf channel leads to reduced bandwidth economy, since the U plane itself requires a further transmission path (bearer), a further link or a further time slot; that is to say two transmission paths (bearers) are required�for example MBC to the LCN2, LCNz and MBC to the LCNy, LCN1 according to FIG. 5�two links or two time slots are required for a single voice link.
Furthermore, three transmission paths (bearers)�for example MBC to the LCNx, LCN0, MBC to the LCNy, LCN1 AND MBC to the LCNz, LCN2 according to FIG. 5�three links or three time slots are required for the case when there are two ISDN-B channel links (voice links).
SUMMARY OF THE INVENTION The task on which the invention is based is to optimize the setting up and use of transmission paths, in terms of the number of transmission paths for wire-free message transmission, in wire-free telecommunications systems, in particular in a DECT-specific RLL/WLL system which is included as a local message transmission loop in an ISDN system.
The telecommunications system is an �IS-54� system or a PDC system.
DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 6 shows a stimulus state diagram, showing how it is possible by controlling the transmission path numbers to achieve a channel change from the Cf channel to the Cs channel with minimum complexity in terms of transmission paths (saving resources in the radio interface).
The first telecommunications interface DIFS (radio transmitting/radio receiving device) is connected to the second telecommunications interface DIPS (radio transmitting/radio receiving device) on a first transmission path having a first transmission path number LCNx (Logical Connection Number; identifier) by means of the first transmission channel Cf. A first NWK message �CC-SETUP� (cf. ETSI publication ETS 300175-5, October 1992, Chapter 6.3.2.1) and the first transmission path number LCNx are now used by the first telecommunications interface DIFS to request the U plane for the second telecommunications interface DIPS.
A first MAC message �ATTRIBUTES_T._REQUEST� and a second MAC message �ATTRIBUTES_T._CONFIRM� (cf. ETSI publication ETS 300175-3, October 1992, Chapter 7.2.5.3.8) are now used for signalling from the DECT B field to the DECT A field. This has the same meaning as changing from the Cf channel to the Cs channel. Subsequently, the telecommunications interfaces DIFS, DIPS use a second NWK message �CC-CONNECT�(cf. ETSI publication ETS 300175-5, October 1992, Chapter 6.3.2.6) and a third NWK message �CC-CONNECT_ACKNOWLEDGE� (cf. ETSI publication ETS 300175-5, October 1992, Chapter 6.3.2.7) interactively to confirm that the U plane and the Cs channel have been set up with the first transmission path number LCNx. Until now, it has been necessary to set up two transmission paths for such a channel change.
The choice of the identifier LCN�in the present case LCN0�as the identifier for the transmission path to be set up is not carried out arbitrarily but, once again deliberately, on the basis of a predetermined selection criterion. Formulated in entirely general form, this criterion consists of using as the identifier LCN the identity of the possible identifiers LCN0, LCN1, LCN2 which have not yet been used for another transmission path, that is to say which is free.
As an alternative to the selection criterion quoted above, it is also possible to use specific features of the selection criterion for identifier allocation. Thus, for example�as in the present case�the lowest free identifier of the identifiers LCN0, LCN1, LCN2 can always be used, or the highest free identifier of the identifiers LCN0, LCN1, LCN2.
In order to set up the transmission path, the second telecommunications interface DIPS, which, in accordance with ETSI publication ETS 300175-3, October 1992, Chapter 10.5.1.2 and 10.5.1.3, is preferably responsible for setting up a transmission path, transmits to the first telecommunications interface DIFS a DECT-specific first B field message �BEARER_REQUEST� (cf. ETSI publication ETS 300175-3, October 1992, Chapter 7.3.3.2) as a COMMAND.
After receiving the first B field message, the first telecommunications interface DIFS then sends a DECT-specific second B field message �BEARER_CONFIRM� (cf. ETSI publication ETS 300175-3, October 1992, Chapter 7.3.3.3) as a RESPONSE to the second telecommunications interface DIPS. The further transmission path is produced in this state, that is to say after the second telecommunications interface DIPS has received the second B field message (cf. ETSI publication ETS 300175-3, October 1992, Chapters 10.5.1.1. to 10.5.1.3).
This is identified by the first telecommunications interface DIFS, so that said interface DIPS transmits the first MAC message �ATTRIBUTES_T._REQUEST� (cf. ETSI publication ETS 300175-3, October 1992, Chapter 7.2.5.3.8) to the second telecommunications interface DIPS.
The second telecommunications interface DIPS confirms the first MAC message �ATTRIBUTES_T._REQUEST� by transmitting the second MAC message �ATTRIBUTES_T._CONFIRM� to the first telecommunications interface DIFS. After this, the first transmission channel Cf is used for message transmission on the C plane.
Patent CitationsCited PatentFiling datePublication dateApplicantTitleUS5181199Aug 31, 1990Jan 19, 1993Hitachi, Ltd.Packet switching systemUS5212684 *Aug 30, 1990May 18, 1993U.S. Philips CorporationProtocol and transceiver for cordless/cellular telephone serviceUS5530917 *May 17, 1994Jun 25, 1996Telefonaktiebolaget Lm EricssonMethod and a device for the utilization of channels in a radio communications systemDE19625141A1Jun 24, 1996Oct 9, 1997Siemens AgVerfahren zur Steuerung des Wechsels von Telekommunikationskan�len eines in einem Telekommunikationssystem als lokale Nachrichten�bertragungsschleife eingebundenen Telekommunikationsteilsystems, insbesondere eines in einem ISDN-System eingebundenen DECT-spezifischen RLL/WLL-TeilsystemsEP0415502A2Aug 28, 1990Mar 6, 1991Philips Electronics Uk LimitedCommunications systemFI9619065A * Title not availableSE9419877A * Title not availableSE9615642A * Title not availableWO1993021719A1Mar 25, 1993Oct 28, 1993Horst FlakeMethod of structuring a b-field format in a dect-standard system* Cited by examinerNon-Patent CitationsReference1Communications Research Group, University of Wales, Wab Hing IP et al, "Cordless Access to the ISDN basic rate service", pp. 29/1-29/7.2DECT/GAP standard (Digital European Cordless Telecommunication; cf. (1): Nachrichtentechnik Elektronik 42 (1992) Jan./Feb. No. 1, Berlin, DE; U. Pilger "Struktur des DECT-Standards," pp. 23-29.3IEEE Communications Magazine, Jan. 1995, David D. Falconer et al, Time Division Multiple Access Methods for Wireless Personal Communications, pp. 50-57.4Informatik Spektrum Jun. 14, 1991, No. 3, Berlin A. Mann, "Der GSM-Standard-Grundlage f�r dugutake europ�ische Mobilfunknetze", pp. 137-152.5Informatik Spektrum Jun. 14, 1991, No. 3, Berlin A. Mann, "Der GSM-Standard�Grundlage f�r dugutake europ�ische Mobilfunknetze", pp. 137-152.6Nachrichtentech, Elektron, Berlin, vol. 41, (1991) Werner Baerwald, "Schnittstellen in der Telekommunikation Teil 1: Standardisierung in der Telekommunikation-ein �berlick", pp. 99-102; Teil 2: pp. 138-143; Teil 3: pp. 179-182; Teil 3 (Schluss): pp. 219-222: Teil 4: pp. 19-20; Teil 5: pp. 59-61: Teil 5 (Schluss): pp. 99-102; Teil 6: pp. 150-153; Teil 7: pp. 238-241; Teil 8: pp. 29-33; Teil 9: pp. 95-97; Teil 9: pp. 129-135; & Teil 10: pp. 187-190.7Nachrichtentech, Elektron, Berlin, vol. 41, (1991) Werner Baerwald, "Schnittstellen in der Telekommunikation Teil 1: Standardisierung in der Telekommunikation�ein �berlick", pp. 99-102; Teil 2: pp. 138-143; Teil 3: pp. 179-182; Teil 3 (Schluss): pp. 219-222: Teil 4: pp. 19-20; Teil 5: pp. 59-61: Teil 5 (Schluss): pp. 99-102; Teil 6: pp. 150-153; Teil 7: pp. 238-241; Teil 8: pp. 29-33; Teil 9: pp. 95-97; Teil 9: pp. 129-135; & Teil 10: pp. 187-190.8Nachrichtentech, Elektron, Berlin, vol. 45 (1995), Roland Geissler, Drahtlose ISDN-Kommunikation, pp. 21-23.9Nachrichtentech, Elektron, Berlin, vol. 45, (1995), Radio in the Local Loop, pp. 29-30.10Philips Telecommunication Review, R. J. Mulder, "DECT, a universal cordless access system", pp. 68-73.11tec 2/93-Das technische Magazin von Ascom "Wege zur universellen mobilen Telekommunikation", pp. 35-42.12tec 2/93�Das technische Magazin von Ascom "Wege zur universellen mobilen Telekommunikation", pp. 35-42.13Telcom Report 16 (1993), No. 1, J. H. Koch: "Digitaler Komfort f�r schnurlose Telekommunikation-DECT-Standard er�ffmet neue Nutzungsgebiete", pp. 26-27.14Telcom Report 16 (1993), No. 1, J. H. Koch: "Digitaler Komfort f�r schnurlose Telekommunikation�DECT-Standard er�ffmet neue Nutzungsgebiete", pp. 26-27.15Unterrichtsblatter Jg. 48, Feb. 1995, Rolf Kohlmeier, Protokolle am Beispiel des OSI-Referenzmodells, pp. 102-111.Referenced byCiting PatentFiling datePublication dateApplicantTitleUS6539033 *Sep 9, 1997Mar 25, 2003Siemens AgMethod for the transmission of data in a hybrid telecommunication system, in particular an �ISDN ⇄ dect-specific RLL/WLL� systemUS6625128 *Jun 28, 1999Sep 23, 2003Legerity, Inc.Method and apparatus for prioritizing packet data transmission and reception* Cited by examinerClassifications U.S. Classification455/450, 455/453, 370/319, 455/446, 370/320, 370/321, 455/426.2International ClassificationH04W84/14, H04W28/26Cooperative ClassificationH04W28/26, H04W84/14European ClassificationH04W28/26Legal EventsDateCodeEventDescriptionDec 18, 2013LAPSLapse for failure to pay maintenance feesJul 26, 2013REMIMaintenance fee reminder mailedAug 17, 2009ASAssignmentOwner name: GIGASET COMMUNICATIONS GMBH, GERMANYFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SIEMENS AKTIENGESELLSCHAFT;REEL/FRAME:023107/0010Effective date: 20090721Jun 11, 2009FPAYFee paymentYear of fee payment: 8May 12, 2005FPAYFee paymentYear of fee payment: 4Dec 9, 1998ASAssignmentOwner name: SIEMENS AKTIENGESELLSCHAFT, GERMANYFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:KORDSMEYER, MARTIN;REEL/FRAME:010186/0941Effective date: 19970425RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services©2012 Google