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WO1996034503A1 - Systeme de telecommunications mobile a deux modes - Google Patents

Systeme de telecommunications mobile a deux modes Download PDF

Info

Publication number
WO1996034503A1
WO1996034503A1 PCT/GB1996/000986 GB9600986W WO9634503A1 WO 1996034503 A1 WO1996034503 A1 WO 1996034503A1 GB 9600986 W GB9600986 W GB 9600986W WO 9634503 A1 WO9634503 A1 WO 9634503A1
Authority
WO
WIPO (PCT)
Prior art keywords
network
gsm
telecommunication system
subscriber
satellite network
Prior art date
Application number
PCT/GB1996/000986
Other languages
English (en)
Inventor
Richard James Skaife
Original Assignee
Aethos Communication Systems
Pt Pasifik Satelit Nusantara
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Aethos Communication Systems, Pt Pasifik Satelit Nusantara filed Critical Aethos Communication Systems
Priority to AU54048/96A priority Critical patent/AU5404896A/en
Publication of WO1996034503A1 publication Critical patent/WO1996034503A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/08—Mobility data transfer
    • H04W8/12—Mobility data transfer between location registers or mobility servers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/1853—Satellite systems for providing telephony service to a mobile station, i.e. mobile satellite service
    • H04B7/18563—Arrangements for interconnecting multiple systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Definitions

  • This invention relates to radio telecommunications systems, especially mobile telecommunications systems.
  • GSM refers to the Global System for Mobile Communications, which has been developed as a standard for land-based telecommunications systems so that a subscriber in one system can make and receive calls using his mobile telephone when he leaves the fixed radio network of the home system and moves into the fixed radio network of a visited system.
  • Each system has an associated mobile switching centre MSC which operates to route calls to and from subscribers' telephones in the home system, and via the MSCs of visited systems to and from subscribers' telephones in visited systems.
  • MSC mobile switching centre
  • a Home Location Register HLR, a Visiting Location Register NLR and an Authentication Centre AuC are also associated with
  • Each subscriber is issued with a unique International Mobile Subscriber Identity IMSI which is incorporated in a Subscriber Identification Mobile SIM of the subscriber's telephone, and is used in an authentication procedure every time a subscriber requests telephone access to the system.
  • the subscriber's LMSI is registered in the HLR of his home system together with other details about the services the subscriber is allowed.
  • His IMSI is used in the registration process to interrogate his HLR to obtain his service details, and to supply location information to the HLR for forwarding incoming calls to the subscriber in the visited system.
  • An authentication procedure is also initiated using authentication information from the AuC of the home system.
  • the radio network itself consists of a base station sub-system BSS comprising a base station controller BSC and several base transceiver stations BTS, each of which provides a radio cell of one or more channels.
  • BSS base station sub-system BSS
  • BTS base transceiver stations
  • a subscriber initiates a call, his telephone searches for a local base station so as to synchronise with a BTS and set up a route via the BSC to the MSC.
  • the interface between the BSS and the MSC, and the links between MSCs comply with the GSM standard, and have the general features identified above.
  • the present invention consists in providing a radio telecommunication system in which subscribers can receive services via alternative types of radio networks, such as a direct access mobile satellite network and a terrestrial/land-based network.
  • the mobile telephone for a direct access mobile satellite network is adapted so that it can alternatively access a land-based GSM network using the same SIM/IMSI as when accessing the satellite network, the satellite network being designed in accordance with the same GSM standard.
  • a subscriber to the satellite network can therefore roam on to the land-based GSM network and still be contactable on the same telephone number.
  • the network architecture of the switching, security management and mobility management/location management of the satellite network is provided by a GSM system comprising MSC,HLR and AuC, as shown in the accompanying drawing.
  • the satellite system uses standard GSM HLR management procedures and protocols, and standard GSM authentication procedures.
  • the satellite network also uses standard GSM authentication procedures.
  • the SIM is preferably a standard GSM SIM with standard GSM numbering structures.
  • the satellite network uses GSM standard numbering systems with IMSJXi (IMSI personal key) and MSISDN (subscriber number) complying with GSM.
  • IMSJXi IMSI personal key
  • MSISDN subscriber number
  • the necessary network identities are compliant and registered with GSM MoU (Memorandum of Understanding) methods, so all GSM networks know the satellite network identity codes.
  • the satellite network operator has a roaming agreement with the GSM network.
  • Links are provided between the MSCs of the satellite network and the GSM network. Since the satellite network MSC/HLR AuC is a fully compliant GSM architecture, this appears to the GSM network as if it is another GSM network with the MSC acting as the gateway MSC. The GSM network cannot "see" the different architecture beyond the interface with the radio sub-system providing the satellite radio link (i.e. the A-interface).
  • a subscriber to the satellite network service has a subscription registered in the satellite HLR as his home network, and the appropriate Ki is held in the satellite network AuC.
  • the SIM in the subscribers' mobile telephone is programmed to select the satellite network as its preferred network.
  • the telephone When the telephone is under satellite coverage only, it registers in the satellite HLR and obtains service.
  • the telephone When the telephone is under satellite and GSM coverage, it "sees" both networks, but selects the satellite network as its preferred network and registers on that network.
  • the subscriber may, however, elect to join the GSM service instead, and manually selects this using a network selection function on his telephone. Since he does not subscribe to this GSM network as his home network, the GSM network enters the GSM roaming authentication and location procedure.
  • the subscriber's telephone When the subscriber's telephone is under GSM coverage only, it uses the GSM network, and joins the network as a roaming subscriber. Should the subscriber re-enter the satellite coverage, his telephone will then automatically rejoin the satellite network, as this network
  • the HLR interrogation points to the satellite network NLR, and the call is handled via the satellite network MSC. If the subscriber is registered in the GSM network, and an inbound call enters the satellite network MSC, the location procedures will set the satellite HLR entry to point to the GSM network NLR since the subscriber is registered in the NLR of the GSM network. The call is therefore routed via the inter MSC link to the GSM network.
  • the mobile telephone for a land-based GSM network is adapted so that it can alternatively access a direct access mobile satellite network using the same SIM/IMSI as when accessing the land-based GSM network, the satellite network being designed in accordance with the same GSM standard.
  • the subscriber to the GSM network is equipped with a dual mode telephone. His home network is the GSM network, and the GSM network is the preferred network. However, the subscriber is able to "roam" onto the satellite network in a GSM style roaming method.
  • the subscriber is automatically contactable on one telephone number (his MSISD ⁇ ), irrespective of whether he is on the satellite network or the GSM network.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Databases & Information Systems (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention porte sur un système de télécommunications à deux modes dual selon lequel le téléphone mobile d'un abonné peut émettre et recevoir des appels soit à l'aide d'un réseau GSM terrestre, soit à l'aide d'un réseau de satellites.
PCT/GB1996/000986 1995-04-25 1996-04-25 Systeme de telecommunications mobile a deux modes WO1996034503A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU54048/96A AU5404896A (en) 1995-04-25 1996-04-25 Dual mode mobile telecommunications system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9508367.1A GB9508367D0 (en) 1995-04-25 1995-04-25 Telecommunication systems
GB9508367.1 1995-04-25

Publications (1)

Publication Number Publication Date
WO1996034503A1 true WO1996034503A1 (fr) 1996-10-31

Family

ID=10773479

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1996/000986 WO1996034503A1 (fr) 1995-04-25 1996-04-25 Systeme de telecommunications mobile a deux modes

Country Status (3)

Country Link
AU (1) AU5404896A (fr)
GB (1) GB9508367D0 (fr)
WO (1) WO1996034503A1 (fr)

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998037709A3 (fr) * 1997-02-20 1998-10-01 Vodafone Ltd Arrangements et procedes de telecommunications
WO1998020695A3 (fr) * 1996-11-01 1998-10-01 Ericsson Inc Systeme et procede ameliorant la mise a jour de la recherche et de la localisation des abonnes mobiles
WO1998057444A1 (fr) * 1997-06-13 1998-12-17 Ericsson Inc. Architecture de telephone satellitaire/cellulaire a modes physiquement separables
EP0831599A3 (fr) * 1996-09-04 1999-01-20 Globalstar L.P. Système mobile automatique satellite terrestrial avec terminal mobile
WO1999019998A1 (fr) * 1997-10-15 1999-04-22 Ericsson Inc. Systeme par satellite utilisant plusieurs normes d'interface aeriennes et procede d'utilisation de ce systeme
EP0854591A3 (fr) * 1997-01-21 1999-06-23 ICO Services Ltd. Système et méthode pour téléphone multi-services terrestre et satellite
GB2337411A (en) * 1998-05-13 1999-11-17 Nec Technologies Interconnect controller
FR2779898A1 (fr) * 1998-06-16 1999-12-17 Sagem Procede de communication d'un terminal de communication radio cellulaire et satellitaire, et terminal pour la mise en oeuvre du procede
US6038439A (en) * 1996-09-10 2000-03-14 Telefonaktiebolaget Lm Ericsson Method and device in a telecommunications system
EP0993131A1 (fr) * 1998-10-06 2000-04-12 ICO Services Ltd. Appareil et méthode de communication pour terminal multimode ayant une mémoire amovible de données
EP0998059A1 (fr) * 1998-10-30 2000-05-03 ICO Services Ltd. Terminal de communication mobile avec un module de données amovible pour accéder à un premier ou un deuxième réseau de communication
WO2000038440A1 (fr) * 1998-12-21 2000-06-29 Kent Ridge Digital Labs Reseau de communications mobiles
WO2000051266A1 (fr) * 1999-02-25 2000-08-31 Motorola Inc. Communications cellulaires par satellite utilisant des services de reseau domestique
US6377804B1 (en) * 1997-06-24 2002-04-23 Nokia Mobile Phones Ltd. Mobile communication systems
EP1075162A4 (fr) * 1999-02-24 2002-08-21 Mitsubishi Electric Corp Systeme de communication multiple, echangeur et terminal
WO2002063892A3 (fr) * 2001-02-08 2003-02-20 Ericsson Telefon Ab L M Procedes, systemes et terminaux a double mode pour des enregistrements reduits de terminal mobile
US6580921B1 (en) * 1997-03-04 2003-06-17 Mitsubishi Denki Kabushiki Kaisha Dual-mode mobile telephone terminal
GB2404818A (en) * 2003-08-01 2005-02-09 Agilent Technologies Inc Satellite UMTS based distress transmitters for personal use.
US6859652B2 (en) 2000-08-02 2005-02-22 Mobile Satellite Ventures, Lp Integrated or autonomous system and method of satellite-terrestrial frequency reuse using signal attenuation and/or blockage, dynamic assignment of frequencies and/or hysteresis
US6892068B2 (en) 2000-08-02 2005-05-10 Mobile Satellite Ventures, Lp Coordinated satellite-terrestrial frequency reuse
EP1278310B1 (fr) * 2001-07-17 2009-02-25 NTT DoCoMo, Inc. Réseau, system et méthode de communications mobiles par satellite, programme et mémoire lisible par calculateur à cet effet
US9730146B2 (en) 2002-02-26 2017-08-08 Lincoln J. Unruh System and method for reliable communications over multiple packet RF networks
US10187904B2 (en) 2008-02-29 2019-01-22 Koninklijke Kpn N.V. Telecommunications network and method for time-based network access
WO2025119321A1 (fr) * 2023-12-08 2025-06-12 大唐移动通信设备有限公司 Procédé et appareil de transmission d'informations, et terminal et dispositif de réseau

Non-Patent Citations (6)

* Cited by examiner, † Cited by third party
Title
BARANOWSKY P W: "MSAT AND CELLULAR HYBRID NETWORKING", PROCEEDINGS OF THE THIRD INTERNATIONAL MOBILE SATELLITE CONFERENC E, JUNE 16-18, 1993, PASEDENA, CA, US, 1 January 1993 (1993-01-01), pages 149 - 154, XP000524011 *
CHARBONNIER A ET AL: "PERSPECTIVES FOR MOBILE COMMUNICATIONS", COMMUTATION ET TRANSMISSION, vol. 15, 1 January 1993 (1993-01-01), pages 109 - 121, XP000396196 *
DUPUIS P: "A EUROPEAN VIEW ON THE TRANSITION PATH TOWARD ADVANCED MOBILE SYSTEMS A SMOOTH EVOLUTIONARY TRANSITION FROM GSM TO FPLMTS", IEEE PERSONAL COMMUNICATIONS, vol. 2, no. 1, 1 February 1995 (1995-02-01), pages 60 - 63, XP000489281 *
MCFARLANE D A: "INTEGRATION OF SATELLITE SYSTEMS AND SERVICES WITHIN THIRD GENERATION MOBILE SYSTEMS SUCH AS UMTS AND FPLMTS", PROCEEDINGS OF THE VEHICULAR TECHNOLOGY CONFERENCE, STOCKHOLM, JUNE 8 - 10, 1994, vol. 1, 8 June 1994 (1994-06-08), INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS, pages 321 - 324, XP000496687 *
PRISCOLI DELLI F: "ARCHITECTURE OF ON INTEGRATED GSM-SATELLITE SYSTEM", ALTA FREQUENZA, vol. 5, no. 5, 1 September 1994 (1994-09-01), pages 91 - 99, XP000470682 *
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Cited By (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6233463B1 (en) 1996-09-04 2001-05-15 Globalstar L.P. Automatic satellite terrestrial mobile terminal roaming system and method
US6072768A (en) * 1996-09-04 2000-06-06 Globalstar L.P. Automatic satellite/terrestrial mobile terminal roaming system and method
EP0831599A3 (fr) * 1996-09-04 1999-01-20 Globalstar L.P. Système mobile automatique satellite terrestrial avec terminal mobile
US6038439A (en) * 1996-09-10 2000-03-14 Telefonaktiebolaget Lm Ericsson Method and device in a telecommunications system
US5946619A (en) * 1996-11-01 1999-08-31 Ericsson Inc System and method for improved paging and location updating of mobile subscribers
AU743571B2 (en) * 1996-11-01 2002-01-31 Ericsson Inc. System and method for improved paging and location updating of mobile subscribers
WO1998020695A3 (fr) * 1996-11-01 1998-10-01 Ericsson Inc Systeme et procede ameliorant la mise a jour de la recherche et de la localisation des abonnes mobiles
EP0854591A3 (fr) * 1997-01-21 1999-06-23 ICO Services Ltd. Système et méthode pour téléphone multi-services terrestre et satellite
WO1998037709A3 (fr) * 1997-02-20 1998-10-01 Vodafone Ltd Arrangements et procedes de telecommunications
US6580921B1 (en) * 1997-03-04 2003-06-17 Mitsubishi Denki Kabushiki Kaisha Dual-mode mobile telephone terminal
US6134437A (en) * 1997-06-13 2000-10-17 Ericsson Inc. Dual-mode satellite/cellular phone architecture with physically separable mode
WO1998057444A1 (fr) * 1997-06-13 1998-12-17 Ericsson Inc. Architecture de telephone satellitaire/cellulaire a modes physiquement separables
US6377804B1 (en) * 1997-06-24 2002-04-23 Nokia Mobile Phones Ltd. Mobile communication systems
WO1999019998A1 (fr) * 1997-10-15 1999-04-22 Ericsson Inc. Systeme par satellite utilisant plusieurs normes d'interface aeriennes et procede d'utilisation de ce systeme
US6052560A (en) * 1997-10-15 2000-04-18 Ericsson Inc Satellite system utilizing a plurality of air interface standards and method employing same
GB2337411B (en) * 1998-05-13 2002-09-18 Nec Technologies Interconnect controller
GB2337411A (en) * 1998-05-13 1999-11-17 Nec Technologies Interconnect controller
WO1999066659A1 (fr) * 1998-06-16 1999-12-23 Sagem S.A. Procede de communication d'un terminal de communication radio cellulaire et satellitaire, et terminal pour la mise en oeuvre du procede
FR2779898A1 (fr) * 1998-06-16 1999-12-17 Sagem Procede de communication d'un terminal de communication radio cellulaire et satellitaire, et terminal pour la mise en oeuvre du procede
US6567673B1 (en) 1998-06-16 2003-05-20 Sagem Sa Method for communicating a cellular radio and satellite communication terminal, and terminal for implementing said method
EP0993131A1 (fr) * 1998-10-06 2000-04-12 ICO Services Ltd. Appareil et méthode de communication pour terminal multimode ayant une mémoire amovible de données
EP0998059A1 (fr) * 1998-10-30 2000-05-03 ICO Services Ltd. Terminal de communication mobile avec un module de données amovible pour accéder à un premier ou un deuxième réseau de communication
WO2000038440A1 (fr) * 1998-12-21 2000-06-29 Kent Ridge Digital Labs Reseau de communications mobiles
EP1075162A4 (fr) * 1999-02-24 2002-08-21 Mitsubishi Electric Corp Systeme de communication multiple, echangeur et terminal
WO2000051266A1 (fr) * 1999-02-25 2000-08-31 Motorola Inc. Communications cellulaires par satellite utilisant des services de reseau domestique
US7636567B2 (en) 2000-08-02 2009-12-22 Atc Technologies, Llc Coordinated satellite-terrestrial frequency reuse
US6859652B2 (en) 2000-08-02 2005-02-22 Mobile Satellite Ventures, Lp Integrated or autonomous system and method of satellite-terrestrial frequency reuse using signal attenuation and/or blockage, dynamic assignment of frequencies and/or hysteresis
US6892068B2 (en) 2000-08-02 2005-05-10 Mobile Satellite Ventures, Lp Coordinated satellite-terrestrial frequency reuse
US7577400B2 (en) 2000-08-02 2009-08-18 Atc Technologies, Llc Integrated or autonomous system and method of satellite-terrestrial frequency reuse using signal attenuation and/or blockage, dynamic assignment of frequencies and/or hysteresis
US7593726B2 (en) 2000-08-02 2009-09-22 Atc Technologies, Llc Coordinated satellite-terrestrial frequency reuse
WO2002063892A3 (fr) * 2001-02-08 2003-02-20 Ericsson Telefon Ab L M Procedes, systemes et terminaux a double mode pour des enregistrements reduits de terminal mobile
EP1278310B1 (fr) * 2001-07-17 2009-02-25 NTT DoCoMo, Inc. Réseau, system et méthode de communications mobiles par satellite, programme et mémoire lisible par calculateur à cet effet
US9730146B2 (en) 2002-02-26 2017-08-08 Lincoln J. Unruh System and method for reliable communications over multiple packet RF networks
US9743340B2 (en) 2002-02-26 2017-08-22 Lincoln J Unruh System and method for reliable communications over multiple packet RF networks
GB2404818A (en) * 2003-08-01 2005-02-09 Agilent Technologies Inc Satellite UMTS based distress transmitters for personal use.
GB2404818B (en) * 2003-08-01 2007-10-03 Agilent Technologies Inc Low-cost s-umts based distress transmitters for personal use
US10187904B2 (en) 2008-02-29 2019-01-22 Koninklijke Kpn N.V. Telecommunications network and method for time-based network access
WO2025119321A1 (fr) * 2023-12-08 2025-06-12 大唐移动通信设备有限公司 Procédé et appareil de transmission d'informations, et terminal et dispositif de réseau

Also Published As

Publication number Publication date
AU5404896A (en) 1996-11-18
GB9508367D0 (en) 1995-06-14

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