DETERMINING THE LOCATION OF A SUBSCRIBER UNIT IN A MOBILE COMMUNICATION SYSTEM

    公开(公告)号:CA2286161A1

    公开(公告)日:1998-10-15

    申请号:CA2286161

    申请日:1998-04-07

    Applicant: QUALCOMM INC

    Abstract: A mobile telephone system employs a fleet of satellites (14) and a set of gateway ground stations (10) arranged around the globe for handling communications to and from mobile communication subscriber units (12) such as mobile telephones. Signals are transmitted between a subscriber unit (10) and the nearest gateway (10) via one or more of the satellites. The gateway system is configured to process telephone call connection requests from a mobile subscriber unit (12) based upon the location of the subscriber unit. The location of the subscriber unit is employed, for example, to determine how telephone numbers are to be parsed and how to properly route emergency telephone calls to the nearest appropriate emergency service centers. Multiple location mapping schemes are employed to facilitate a determination of the location of a subscriber unit and to assist in routing emergency calls. In one implementation, each location with the service area of the system is mapped into a set of uniformly sized and shaped information cells (802). Each information cell includes pointers to data structures (806, 808) defining, among other things, the service providers that are permitted to process calls to or from that location and the nearest emergency services center. Each location is also mapped into at least one virtual service provider cell (812, 814, 816, 818, 820) which includes service provider preferences and requirements for handling a call to from that location and including a unique location identifier. A specific implementation for use with the Global System for Mobile Communication (GSM) is described.

    Wireless telecommunications system utilizing cdma radio frequency signal modulation in conjunction with the gsm a-interface telecommunications networkprotocol

    公开(公告)号:HK1002307A1

    公开(公告)日:1998-08-14

    申请号:HK98101118

    申请日:1998-02-12

    Applicant: QUALCOMM INC

    Abstract: A method and apparatus for operating a wireless telecommunication system utilizing code division multiple access (CDMA) over-the-air with a Global System for Mobile communications (GSM) A-interface based network is described. A CDMA radio frequency (RF) signal interface provides a bi-directional interface to a subscriber unit, and a Global System for Mobile (GSM) communications A-interface SS7 transport provides a bi-directional interface with GSM mobile services switching center (MSC). Additionally, a transparent message transport is provided over which signaling messages defined in the GSM A-interface protocol are exchanged between the GSM MSC and a subscriber unit. Other signaling message generating by the GSM MSC and subscriber unit are processed and various actions are taken in response, including the configuration and control of signal processing resources. This configuration and control includes the allocation of vocoding and devocoding resources in accordance with the requested type of service, and the invocation of CDMA based encryption capabilities. Other actions include the allocation of CDMA traffic channel processing resources and selection resources at the start of a signaling exchange between the subscriber unit and the BSS or MSC. These resources process both voice and data calls, and signaling messages, such as registrations, from the subscriber unit. The CDMA traffic channel resources are used to perform the IS-95 style CDMA signal processing functions including modulation and demodulation.

    DETERMINING THE LOCATION OF A SUBSCRIBER UNIT IN A MOBILE COMMUNICATION SYSTEM

    公开(公告)号:MY138323A

    公开(公告)日:2009-05-29

    申请号:MYPI9801564

    申请日:1998-04-09

    Applicant: QUALCOMM INC

    Abstract: A MOBILE TELEPHONE SYSTEM EMPLOYS A FLEET OF SATELLITES (14) AND A SET OF GATEWAY GROUND STATIONS (10) ARRANGED AROUND THE GLOBE FOR HANDLING COMMUNICATIONS TO AND FROM MOBILE COMMUNICATION SUBSCRIBER UNITS (12) SUCH AS MOBILE TELEPHONES. SIGNALS ARE TRANSMITTED BETWEEN A SUBSCRIBER UNIT (10) AND THE NEAREST GATEWAY (10) VIA ONE OR MORE OF THE SATELLITES. THE GATEWAY SYSTEM IS CONFIGURED TO PROCESS TELEPHONE CALL CONNECTION REQUESTS FROM A MOBILE SUBSCRIBER UNIT (12) BASED UPON THE LOCATION OF THE SUBSCRIBER UNIT. THE LOCATION OF THE SUBSCRIBER UNIT IS EMPLOYED, FOR EXAMPLE, TO DETERMINE HOW TELEPHONE NUMBERS ARE TO BE PARSED AND HOW TO PROPERLY ROUTE EMERGENCY TELEPHONE CALLS TO THE NEAREST APPROPRIATE EMERGENCCY SERVICE CENTERS. MULTIPLE LOCATION MAPPING SCHEMES ARE EMPLOYED TO FACILITATE A DETERMINED OF THE LOCATION OF A SUBSCRIBER UNIT AND TO ASSIST IN ROUTING EMERGENCY CALLS. IN ONE IMPLEMENTATION, EACH LOCATION WITH THE SERVICE AREA OF THE SYSTEM IS MAPPED INTO A SET OF UNIFORMLY SIZED AND SHAPED INFORMATION CELLS (802). EACH INFORMATION CELL INCLUDES POINTERS TO DATA STRUCTURES (806, 808) DEFINING, AMONG OTHER THINGS, THE SERVICE PROVIDERS THAT ARE PERMITTED TO PROCESS CALLS TO OR FROM THAT LOCATION AND THE NEAREST EMERGENCY SERVICES CENTER. EACH LOCATION IS ALSO MAPPED INTO AT LEAST ONE VIRTUAL SERVICE PROVIDER CELL (812, 814, 816, 818, 820) WHICH INCLUDES SERVICE PROVIDER PREFERENCES AND REQUIREMENTS FOR HANDLING A CALL TO FROM THAT LOCATION AND INCLUDING A UNIQUE LOCATION IDENTIFIER. A SPECIFIC IMPLEMENTATION FOR USE WITH THE GLOBAL SYSTEM FOR MOBILE COMMUNICATION (GSM) IS DESCRIBED.

    DETERMINING THE LOCATION OF A SUBSCRIBER UNIT IN A MOBILE COMMUNICATION SYSTEM

    公开(公告)号:CA2286161C

    公开(公告)日:2008-12-09

    申请号:CA2286161

    申请日:1998-04-07

    Applicant: QUALCOMM INC

    Abstract: A mobile telephone system employs a fleet of satellites (14) and a set of gateway ground stations (10) arranged around the globe for handling communications to and from mobile communication subscriber units (12) such as mobile telephones. Signals are transmitted between a subscriber unit (10) and the nearest gateway (10) via one or more of the satellites. The gateway system is configured to process telephone call connection requests from a mobile subscriber unit (12) based upon the location of the subscriber unit. The location of the subscriber unit is employed, for example, to determine how telephone numbers are to be parsed and how to properly route emergency telephone calls to the nearest appropriate emergency service centers. Multiple location mapping schemes are employed to facilitate a determination of the location of a subscriber unit and to assist in routing emergency calls. In one implementation, each location with the service area of the system is mapped into a set of uniformly sized and shaped information cells (802). Each information cell includes pointers to data structures (806, 808) defining, among other things, the service providers that are permitted to process calls to or from that location and the nearest emergency services center. Each location is also mapped intoat least one virtual service provider cell (812, 814, 816, 818, 820) which includes service provider preferences and requirements for handling a call to from that location and including a unique location identifier. A specific implementation for use with the Global System for Mobile Communication (GSM) is described.

    10.
    发明专利
    未知

    公开(公告)号:FI117957B

    公开(公告)日:2007-04-30

    申请号:FI972991

    申请日:1997-07-14

    Applicant: QUALCOMM INC

    Abstract: A method and apparatus for operating a wireless telecommunication system utilizing code division multiple access (CDMA) over-the-air with a Global System for Mobile communications (GSM) A-interface based network is described. A CDMA radio frequency (RF) signal interface provides a bi-directional interface to a subscriber unit, and a Global System for Mobile (GSM) communications A-interface SS7 transport provides a bi-directional interface with GSM mobile services switching center (MSC). Additionally, a transparent message transport is provided over which signaling messages defined in the GSM A-interface protocol are exchanged between the GSM MSC and a subscriber unit. Other signaling message generating by the GSM MSC and subscriber unit are processed and various actions are taken in response, including the configuration and control of signal processing resources. This configuration and control includes the allocation of vocoding and devocoding resources in accordance with the requested type of service, and the invocation of CDMA based encryption capabilities. Other actions include the allocation of CDMA traffic channel processing resources and selection resources at the start of a signaling exchange between the subscriber unit and the BSS or MSC. These resources process both voice and data calls, and signaling messages, such as registrations, from the subscriber unit. The CDMA traffic channel resources are used to perform the IS-95 style CDMA signal processing functions including modulation and demodulation.

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