METHOD AND DEVICE FOR PROVIDING MULTICAST SERVICE IN A COMMUNICATION SYSTEM

METHOD AND DEVICE FOR PROVIDING MULTICAST SERVICE IN A COMMUNICATION SYSTEM

  • CN 102,415,070 A
  • Filed: 09/23/2009
  • Published: 04/11/2012
  • Est. Priority Date: 09/23/2009
  • Status: Active Application
First Claim
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1. ClaimA kind of methods for providing multicast services in a communications system of 1, the communication system includes at least one user equipment and the server of service is provided at least one described user equipment, and methods described includes step:

  • Server determines to provide the multimedia broadcast multicast services MBMS multicast groups of multicast services;

    Broadcast multicast service center BM-SC of the server into the multimedia broadcast multicast services e-MBMS networks of evolution is sent as the MBMS control information needed for the user equipment in MBMS multicast groups provides MBMS;

    BM-SC determines MBMS region according to the MBMS control information received, and in MBMS loading establishing process of the MBMS region internal trigger for the user equipment in MBMS multicast groups;

    Server will provide the data forwarding of service to BM-SC;

    AndBM-SC passes through set up MBMS and carried data distribution to each user equipment in MBMS multicast groups.2. according to the method described in claim 1, wherein, in BM-SC after server receives MBMS service control informations, user equipment or e-MBMS networks in MBMS multicast groups initiate the MBMS discovery procedures for all user equipmenies in multicast group, and trigger the MBMS key distribution procedures between all user equipmenies and BM-SC in multicast group.3. according to the method described in claim 1, also include step before the step of server determines to provide it the multimedia broadcast multicast services MBMS multicast groups of multicast services:

    The carrying for the service is set up between at least one described user equipment and server.4. method according to claim 3, being established between at least one described user equipment and server also includes step after the carrying for the service:

    At least one described user equipment is carried to the server feedback information relevant with the MBMS abilities of itself by described;

    Wherein, the server determines that MBMS multicast groups include all user equipmenies with MBMS abilities.5. method according to claim 4, wherein, for the user equipment without MBMS abilities, server is sent to the data for be provided service by the carrying.6. according to the method described in claim 1, wherein, the MBMS control information bag receivedInclude the positional information of each user equipment in MBMS multicast groups, the positional information that BM-SC conversions are received, to determine MBMS region.7. method according to claim 6, wherein, the positional information is that each user equipment feeds back to server in MBMS multicast groups, or obtained by the server of the positional information for accessing each user equipment that is stored with.8. method according to claim 7, wherein, also include step after positional information change:

    Server forwards the MBMS control information updated to BM-SC;

    BM-SC redefines MBMS region and triggers MBMS loading establishing process according to the MBMS control information of renewal.9. the method according to one of claim 1-8, in addition to step:

    Server sends service end indicator to BM-SC;

    AndBM-SC stops service, and discharges set up MBMS carryings.10. the method according to one of claim 2-8, wherein, the data that provide service are that the server is received by the carrying from the user equipment at least one described user equipment.11. the method according to one of claim 1-8, wherein, the communication system is one of IP multimedia subsystem IMS systems and private network.12.-kind of broadcast multicast service center BM-SC, including:

    Control information receiving module, the user equipment for being received as from server in multimedia broadcast multicast services MBMS multicast groups provides the MBMS control information needed for MBMS;

    Module is set up in MBMS carryings, for according to the MBMS control information received, determining MBMS coverages, and in MBMS loading establishing process of the MBMS coverages internal trigger for the user equipment in MBMS multicast groups;

    MBMS data reception module, for being received from the server for provide the data of service;

    AndMBMS provides module, and the MBMS set up for passing through is carried data distribution to the user equipment in MBMS multicast groups.13. BM-SC according to claim 12, wherein, the MBMS control information that control information receiving module is received from server includes the positional information of the user equipment in MBMS multicast groups, and module is set up in the MBMS carryings to be included:

    Control information modular converter, for being changed to the positional information, to determine MBMS region.14. BM-SC according to claim 12, wherein, when control information receiving module receives the MBMS control information of renewal, MBMS control information of the module according to renewal is set up in MBMS carryings, is redefined MBMS region and is triggered MBMS loading establishing process.15. the BM-SC according to one of claim 12-14, wherein,When control information receiving module receives service end indicator, MBMS service providing modules stop service, and MBMS carryings set up module and discharge set up MBMS carryings.16. a kind of server, including:

    MBMS multicast group determining modules, for determining MBMS multicast groups;

    Control information sending module, sends as the MBMS control information needed for the user equipment in multimedia broadcast multicast services MBMS multicast groups provides MBMS for the broadcast multicast service center BM-SC in the multimedia broadcast multicast services e-MBMS networks to evolution;

    AndService data sending module, for being sent to BM-SC for provide the data of service.17. server according to claim 16, in addition to:

    MBMS ability information receiving modules, for receiving the information relevant with the MBMS abilities of user equipment from the user equipment in the MBMS multicast groups;

    AndThe MBMS multicast groups determining module determines that MBMS multicast groups include all user equipmenies with MBMS abilities.18. server according to claim 16, wherein, MBMS control information includes the positional information of the user equipment in MBMS multicast groups;

    The positional information is that user equipment in MBMS multicast groups feeds back to the equipment, or obtained by the server of the positional information for accessing the user equipment that is stored with.19. server according to claim 18, wherein, when positional information changes, control information sending module sends the MBMS control information updated to BM-SC.

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