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Methods and devices for enhancing continuity of multimedia broadcast multicast service (MBMS) through improvement of X2 interface

A technology of interface and multicast service, which is applied in broadcast service distribution, electrical components, wireless communication, etc., can solve the problem of occupying wireless resources and achieve the effect of improving the resource utilization rate of the community

Active Publication Date: 2013-01-02
ALCATEL LUCENT SHANGHAI BELL CO LTD +1
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  • Abstract
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Problems solved by technology

Therefore, it will take up a lot of wireless resources

Method used

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  • Methods and devices for enhancing continuity of multimedia broadcast multicast service (MBMS) through improvement of X2 interface
  • Methods and devices for enhancing continuity of multimedia broadcast multicast service (MBMS) through improvement of X2 interface
  • Methods and devices for enhancing continuity of multimedia broadcast multicast service (MBMS) through improvement of X2 interface

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Embodiment Construction

[0017] Hereinafter, some terms appearing in the present invention are briefly explained first.

[0018] MBSFN (Multimedia Broadcast Single Frequency Network, Multimedia Broadcast Single Frequency Network): Multi-cell broadcast mode. In this mode, MBMS service data is simultaneously transmitted through the air interfaces of multiple strictly time-synchronized cells. A user terminal receives and combines synchronization signals from multiple cells. In fact, if each transmission from multiple cells arrives at the user terminal within the cyclic prefix (CP) at the beginning of the symbol is sufficiently strictly synchronized, then the MBSFN transmission is equivalent to the transmission from a single large cell for the user terminal , the user terminal receiver can treat multi-cell transmissions in the same way as it handles the multipath component of single-cell transmissions.

[0019] MBSFN area: that is, an MBSFN area, indicating that multiple cells in these areas transmit the...

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Abstract

The invention provides methods and devices for enhancing the continuity of an MBMS through improvement of an X2 interface. Among the methods, a method for providing MBMS information to at least one second base station in a first base station includes the steps of obtaining dispatching information for the MBMS of the first base station, and obtaining an MBMS identification transmitted by the first base station and a multimedia broadcast single frequency network area identification which transmits the MBMS, wherein the at least one base station is adjacent to the first base station, the dispatching information of the MBMS indicates the first base station to dispatch MBMS transmission on at least one multimedia broadcast single frequency network sub-frame; and providing the MBMS information of the first base station for the at least one second base station according to obtained dispatching information of the MBMS. The MBMS information of the first base station includes information related to the dispatching information of the MBMS, and the multimedia broadcast single frequency network area identification and the MBMS identification.

Description

technical field [0001] The invention relates to the interface between base stations, in particular to a method and device for improving the X2 interface to enhance MBMS service continuity and optimize resource allocation. Background technique [0002] According to the Rel 11 evolved multimedia multicast and / or broadcast service (evolved Multimedia Broadcast Multicast Service, eMBMS) work item (Work Item, WI) and the conclusion of the RAN 2#74 meeting, the user terminal in idle mode (IDLE) can autonomously Raising the cell reselection priority of the cell having the MBMS service that the user is receiving or wants to receive enables the cell to be used as the target of the cell reselection of the user terminal. For an RRC_Connected user terminal, it is suggested that for the mobility of the connected user terminal, the MBMS service reception status is considered, and the user terminal is preferably handed over to a target cell that can provide MBMS service continuity. In ord...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/06H04W92/20
Inventor 王河P・戈丁钱德瑞卡・沃拉尔
Owner ALCATEL LUCENT SHANGHAI BELL CO LTD
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