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    METHOD FOR RADIO BEARER OPTIMIZATION THROUGH AN ADAPTIVE ACCESS PROBABILITY FACTOR
    41.
    发明专利
    METHOD FOR RADIO BEARER OPTIMIZATION THROUGH AN ADAPTIVE ACCESS PROBABILITY FACTOR 未知

    公开(公告)号：CA2547937C

    公开(公告)日：2010-06-22

    申请号：CA2547937

    申请日：2005-04-04

    Applicant: MOTOROLA INC

    Inventor： CAI ZHIJUN ,  AL-BAKRI BAN ,  BURBIDGE RICHARD C

    IPC: G06F15/16 ,  H04J3/02 ,  H04J3/16 ,  H04L12/16 ,  H04L12/56 ,  H04L12/66 ,  H04Q11/00 ,  H04W28/18 ,  H04W48/10 ,  H04W74/00 ,  H04W76/02

    Abstract: A communication system (100) determines whether to establish a point-to-point or point-to-multipoint communication for conveyance of Multimedia Broadcast Multicast Services (MBMS) data based on a number of user equipments (102-104) being serviced by the communication system for MBMS service. The system broadcasts an access probability factor (154) in a control message to the user equipments. For a large number of MBMS users being counted (158), the method will select a point-to-multipoint broadcast (160). If the number of user equipments being counted is relatively small, the access probability factor is modified by a ratio of the number of point-to-point connections over the point-to-multipoint connections over the number of users being counted (174). The UE may need to join multiple base stations' in the counting procedure to obtain the system diversity gain.

    METHOD AND APPARATUS FOR PROVIDING SESSION DATA TO A SUBSCRIBER TO A MULTIMEDIA BROADCAST MULTICAST SERVICE
    42.
    发明专利
    METHOD AND APPARATUS FOR PROVIDING SESSION DATA TO A SUBSCRIBER TO A MULTIMEDIA BROADCAST MULTICAST SERVICE 未知

    公开(公告)号：CA2501191A1

    公开(公告)日：2005-02-17

    申请号：CA2501191

    申请日：2004-08-06

    Applicant: MOTOROLA INC

    Inventor： CAI ZHIJUN ,  CHEN BONNIE

    IPC: H04L12/18 ,  H04L29/06 ,  H04W4/06 ,  H04W76/02 ,  H04W88/18 ,  H04H1/00 ,  H04N7/16 ,  H04Q7/32

    Abstract: A communication system (100) that includes a Multimedia Broadcast Multicast Service (MBMS) service provides re-broadcasts of an event to subscribers (10 2- 104) to the MBMS service. An infrastructure (124) included in the communication system and comprising a server (118) coupled to a RAN controll er (114) via a support node (116) receives a first set of MBMS data from an MBM S content provider (127) and conveys the first set of MBMS data along with an associated first Session Description to a subscribed mobile station (102-104 ). The infrastructure then receives a second set of MBMS data from the MBMS content provider, wherein the second set of MBMS data comprises a re- conveyance of the first set of MBMS data, and conveys an MBMS notification along with an associated second Session Description to the mobile station. T he mobile station may then determine whether to receive the re-conveyance based on the first and second Session Descriptions.

    43.
    发明专利
    未知

    公开(公告)号：DE60319206T2

    公开(公告)日：2009-04-16

    申请号：DE60319206

    申请日：2003-05-09

    Applicant: MOTOROLA INC

    Inventor： CAI ZHIJUN ,  AL-BAKRI BAN ,  BURBIDGE RICHARD

    IPC: H04W4/06 ,  H04W28/08 ,  H04W28/12

    Abstract: A communication system (100) determines whether to establish a point-to-multipoint communication or a point-to-point communication for conveyance of Multimedia Broadcast Multicast Service (MBMS) data based on a number of mobile stations (MSs) (102-104), both idle mode and maintaining an active connection, serviced by the system and subscribed to an MBMS service. The system broadcasts (306) a control message that includes an access probability factor. In order to avoid overloading the system with responses to the control message, MSs maintaining an active connection ignore (506, 508) the control message while idle mode MSs determine (506, 512) whether to respond based on the access probability factor. The system compares (310) a number of received responses to a threshold and determines whether to establish a point-to-multipoint communication (312) or a point-to-point communication (322) based on the comparison. The system also adjusts (314, 330) the access probability factor based on the number of responses.

    Method and apparatus to facilitate macrodiversity reception
    44.
    发明专利
    Method and apparatus to facilitate macrodiversity reception 未知

    公开(公告)号：GB2436973A

    公开(公告)日：2007-10-10

    申请号：GB0707754

    申请日：2007-04-23

    Applicant: MOTOROLA INC

    Inventor： CAI ZHIJUN ,  AHMED MANSOOR ,  HARRISON ROBERT M

    IPC: H04J3/06 ,  H04B7/02 ,  H04W4/06 ,  H04W40/24

    Abstract: Separate Radio Network Controllers (11 and 13) exchange neighboring cell information between one another. This information is used, in turn, to facilitate macrodiversity reception of multicast content. By one approach, a receiver node (16) receives this neighboring cell information which facilitates compatible reception of corresponding multicast content. The receiver node (16) uses differing synchronization techniques, depending upon whether or not the multicast content is sourced by base stations that share a common Radio Network Controller.

    47.
    发明专利
    未知

    公开(公告)号：AT475934T

    公开(公告)日：2010-08-15

    申请号：AT05731259

    申请日：2005-04-04

    Applicant: MOTOROLA INC

    Inventor： CAI ZHIJUN ,  AL-BAKRI BAN ,  BURBIDGE RICHARD C

    IPC: G06F15/16 ,  H04J3/02 ,  H04J3/16 ,  H04L12/16 ,  H04L12/56 ,  H04L12/66 ,  H04Q11/00 ,  H04W28/18 ,  H04W48/10 ,  H04W74/00 ,  H04W76/02

    Abstract: A communication system determines whether to establish a point-to-point or point-to-multipoint communication for conveyance of Multimedia Broadcast Multicast Services (MBMS) data based on a number of user equipments being serviced by the communication system for MBMS service. The system broadcasts an access probability factor in a control message to the user equipments. For a large number of MBMS users being counted, the method will select a point-to-multipoint broadcast. If the number of user equipments being counted is relatively small, the access probability factor is modified by a ratio of the number of point-to-point connections over the point-to-multipoint connections over the number of users being counted. The UE may need to join multiple base stations' in the counting procedure to obtain the system diversity gain.

    METHOD AND APPARATUS FOR CONTROLLING ACCESS TO A MULTIMEDIA BROADCAST MULTICAST SERVICE IN A PACKET DATA COMMUNICATION SYSTEM
    49.
    发明专利
    METHOD AND APPARATUS FOR CONTROLLING ACCESS TO A MULTIMEDIA BROADCAST MULTICAST SERVICE IN A PACKET DATA COMMUNICATION SYSTEM 未知

    公开(公告)号：CA2524652C

    公开(公告)日：2011-06-07

    申请号：CA2524652

    申请日：2004-04-23

    Applicant: MOTOROLA INC

    Inventor： CAI ZHIJUN ,  AL-BAKRI BAN ,  BURBRIDGE RICHARD

    IPC: H04W4/06 ,  H04L12/18 ,  H04L12/56 ,  H04W28/08 ,  H04W28/12

    Abstract: A communication system (100) determines whether to establish a point-to-multipoint communication or a point-to-point communication for conveyance of Multimedia Broadcast Multicast Service (MBMS) data based on a number of mobile stations (MSs) (102-104), both idle mode and maintaining an active connection, serviced by the system and subscribed to an MBMS service. The system. broadcasts (306) a control message that includes an access probability factor. In order to avoid overloading the systern with responses to the control message, MSs maintaining an active connection ignore (506, 508) the control message while idle mode MSs determine (506, 512) whether to respond based on the access probability factor. The system compares (310) a number of received responses to a threshold and determines whether to establish a point-to-multipoint communication (312) or a point-to-point communication (322) based on the comparison. The system also adjusts (314, 330) the access probability factor based on the number of responses.

    50.
    发明专利
    未知

    公开(公告)号：AT387069T

    公开(公告)日：2008-03-15

    申请号：AT03291106

    申请日：2003-05-09

    Applicant: MOTOROLA INC

    Inventor： CAI ZHIJUN ,  AL-BAKRI BAN ,  BURBIDGE RICHARD

    IPC: H04L12/18 ,  H04L12/56 ,  H04W4/06 ,  H04W28/08 ,  H04W28/12

    Abstract: A communication system (100) determines whether to establish a point-to-multipoint communication or a point-to-point communication for conveyance of Multimedia Broadcast Multicast Service (MBMS) data based on a number of mobile stations (MSs) (102-104), both idle mode and maintaining an active connection, serviced by the system and subscribed to an MBMS service. The system broadcasts (306) a control message that includes an access probability factor. In order to avoid overloading the system with responses to the control message, MSs maintaining an active connection ignore (506, 508) the control message while idle mode MSs determine (506, 512) whether to respond based on the access probability factor. The system compares (310) a number of received responses to a threshold and determines whether to establish a point-to-multipoint communication (312) or a point-to-point communication (322) based on the comparison. The system also adjusts (314, 330) the access probability factor based on the number of responses.

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