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    MOBILE RADIO SYSTEM
    1.
    发明专利
    MOBILE RADIO SYSTEM 失效

    公开(公告)号：JP2002044740A

    公开(公告)日：2002-02-08

    申请号：JP2001137267

    申请日：2001-05-08

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： KRIARAS IOANNIS ,  PALAT SUDEEP KUMAR ,  YAMINI HATEF ,  YANG YIN

    IPC: H04L12/66 ,  H04L29/06 ,  H04M3/00 ,  H04M7/00 ,  H04M11/00 ,  H04W88/16 ,  H04Q7/38

    Abstract: PROBLEM TO BE SOLVED: To provide a mobile telephone system with a new architecture capable of processing voice Internet protocol traffic. SOLUTION: In the system, real time traffic from a mobile station (22) is processed in routing by Internet protocol core (20) of public terrestrial mobile telephone connected to either of media gateways (28, 32). The gateways (28, 32) provide services of public switching telephone network/integrated service digital network (26) and Internet protocol backbone (30), the services are provided without through GPRS gateway.

    RADIO ACCESS NETWORK FOR PACKET
    3.
    发明专利
    RADIO ACCESS NETWORK FOR PACKET 失效

    公开(公告)号：JP2001095035A

    公开(公告)日：2001-04-06

    申请号：JP2000243622

    申请日：2000-08-11

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： PALAT SUDEEP KUMAR ,  YAMINI HATEF

    IPC: H04B7/26 ,  H04W36/14 ,  H04W60/04 ,  H04W68/00 ,  H04W92/02 ,  H04W92/12 ,  H04W92/14 ,  H04W92/24 ,  H04Q7/22 ,  H04L12/28

    Abstract: PROBLEM TO BE SOLVED: To provide an improved technique for assuring the that a place of a mobile terminal be known while reducing unnecessary routing area update, when data communication is started after the mobile terminal is at a standby state. SOLUTION: This technique is for optimizing routing area update during handover between systems between GSM/GPRS and UMTS at a connected state of URA in UMTS. An operation mode, in which a radio link is held between the mobile terminal and a first radio access system after completion of data transmission at least in a first radio access system, is provide, and when the next data transmission is started, the routing area update is performed only when mobile object exists in a second radio access system routing area. At the start of the next data transmission and when the packet transmission is started by a network, a paging request is received by the first radio access system. A core net work shared routing area with core network is paged according to reception of the paging request by the first radio access system.

    METHOD FOR CONTROLLING ROUTING AREA UPDATE IN PACKET RADIO ACCESS NETWORK ARCHITECTURE
    4.
    发明专利
    METHOD FOR CONTROLLING ROUTING AREA UPDATE IN PACKET RADIO ACCESS NETWORK ARCHITECTURE 失效

    公开(公告)号：JP2001094580A

    公开(公告)日：2001-04-06

    申请号：JP2000243621

    申请日：2000-08-11

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： PALAT SUDEEP KUMAR ,  ROBERTS MICHAEL ,  YAMINI HATEF

    IPC: H04B7/26 ,  H04W36/14 ,  H04W60/04 ,  H04W68/00 ,  H04W92/02 ,  H04W92/12 ,  H04W92/14 ,  H04W92/24 ,  H04L12/28 ,  H04Q7/38

    Abstract: PROBLEM TO BE SOLVED: To provide an improved technique for reducing unnecessary routing area update while guaranteeing that the location of a moving body terminal is known when the moving body terminal begins to communicate data after standby. SOLUTION: This technique optimizes routing area update in an inter-system hand-over between GSM/GPRS and UMTS in an URA connection state of UMTS. At least in a 1st radio access system, an operation mode wherein a radio link is maintained between the moving body terminal and the 1st radio access system after data transmission is completed is provided and when next data transmission is started, routing update is performed only when the moving body is in a 2nd radio access system routing area; when packet transmission is started by a network, the 1st radio access system receives a paging request and pages a core network common routing area in response to the reception of the paging request.

    5.
    发明专利
    未知

    公开(公告)号：DE60030404D1

    公开(公告)日：2006-10-12

    申请号：DE60030404

    申请日：2000-02-22

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： PALAT SUDEEP KUMAR ,  YANG JIN ,  YAMINI HATEF

    IPC: H04W36/10 ,  H04W36/12 ,  H04W76/04 ,  H04W88/14

    Abstract: A mobile telephone system providing general packet radio service (GPRS) includes a radio network controller (RNC) (2A) and/or a base station controller (BSC) and an associated serving GPRS support node (10A) for each domain. The RNCs (2A) and the SGSNs (10A) are interconnected by an Internet protocol (IP) network. When a mobile telephone (6A) moves from one domain to another, the RNC, in the new domain, takes over handling the mobile telephone. The current SGSN (10A) has a detector (20) which detects whether the existing transmission is a real-time transmission and, if it is, a diverter (22) comes into operation to couple the RNC in the new domain to the current SGSN (10A) rather than its associated SGSN (10A). When the call ends, the current SGSN (10A) handsover the call to the SGSN (10A) in the new domain. This procedure ensures minimal interruption to real-time services by keeping the call anchored to the current SGSN (10A).

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