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Method and apparatus for distributing time frequency resource

A technology of time-frequency resources and allocation methods, applied in the field of communication, can solve the problems of re-allocation of time-frequency resources and no standard to follow, and achieve the effect of avoiding the surplus of time-frequency resources and increasing the combined gain

Active Publication Date: 2009-06-24
HUAWEI TECH CO LTD
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Problems solved by technology

[0008] Embodiments of the present invention provide a method and device for allocating time-frequency resources to solve the problem of how to re-allocate when MCE has no standard to follow when selecting resource allocation and fails to allocate time-frequency resources in multi-cell transmission mode

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  • Method and apparatus for distributing time frequency resource
  • Method and apparatus for distributing time frequency resource

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Embodiment Construction

[0027] The embodiment of the present invention discloses a method for allocating time-frequency resources: when MCE allocates time-frequency resources, it needs to allocate the same time-frequency resources to each cell guaranteed by an MBSFN area. The method includes: The cell set is divided into different adjacent cell sets, and the MBSFN area is matched with each adjacent cell set, and resources are allocated according to the matching situation, so that as many cells as possible can use the same time-frequency resources, so that the multi-cell combination gain can be maximized. In addition, when multi-cell transmission supports cell transmission combination, it may happen that adjacent cells belong to different MBSFN service areas and are allocated the same frequency at the same time. At this time, adjacent cells will generate co-frequency interference, so adjacent cells in different MBSFN areas interfere Coordination is also a problem to be solved, and the embodiment of the...

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Abstract

The embodiment of the invention discloses a time-frequency resource allocating method used for a multicast service of media broadcasting. The method comprises the following steps: an MBSFN (multicast broadcasting single frequency network) area is matched with each adjacent area in a gathering way; the adjacent areas which satisfy the preset matching requirements are selected to allocate the time-frequency resources of the MBSFN area in a gathering way. The embodiment of the invention further discloses a time-frequency resource allocating equipment. By utilizing the embodiment of the invention, the MBSFN area is matched with the adjacent areas in a gathering way and the resources are allocated according to the matching condition, thus leading more small areas to use the same time-frequency resources, increasing the gains of the combination of the small areas, and avoiding the contradiction that remains of the time-frequency resources are incurred in the random allocation, but no resources can be allocated at present.

Description

technical field [0001] The present invention relates to the field of communication technologies, and in particular to a method and device for allocating time-frequency resources. Background technique [0002] MBMS (Multimedia Broadcast and Multicast Service, Multimedia Broadcast Multicast Service) refers to a point-to-multipoint service in which a data source sends data to multiple users, and can realize network resource sharing, including mobile core network and access network resource sharing, especially It is air interface resource sharing. MBMS defined by 3GPP (the 3rdGeneration Partner Project) can not only realize plain text low-rate message multicast and broadcast, but also realize high-rate multimedia multicast and broadcast, which complies with future mobile data development trend. [0003] According to the distribution of users receiving services, MBMS has two transmission modes, one is multi-cell transmission and the other is single-cell transmission. [0004] ...

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Application Information

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IPC IPC(8): H04W4/06
Inventor 张冬梅胡军伏玉笋
Owner HUAWEI TECH CO LTD
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