MBSFN (multicast broadcast single frequency network) transmission method, device and system

A technology of a multicast single frequency network and a transmission method, which is applied in the directions of synchronization devices, communication between multiple stations, broadcast service distribution, etc., can solve interference, the surrounding area cannot receive MBMS services normally, and cannot ensure synchronization of multiple cells. and other problems to achieve the effect of reducing interference

Active Publication Date: 2014-04-30
HUAWEI TECH CO LTD
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Problems solved by technology

[0004] In the process of realizing the present invention, the inventor found that there are at least the following problems in the prior art: in the prior art, the synchronization of multiple cells cannot be ensured during MBSFN transmission, which will not only bring no gain, but also cause interference, resulting in these Cell coverage and surrounding areas cannot normally receive MBMS services

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  • MBSFN (multicast broadcast single frequency network) transmission method, device and system
  • MBSFN (multicast broadcast single frequency network) transmission method, device and system
  • MBSFN (multicast broadcast single frequency network) transmission method, device and system

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[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0021] The characteristic of the MBSFN transmission mode is the synchronous transmission of multiple cells, and what needs to be solved is the synchronization problem. In the embodiment of the present invention, the network node that needs to be synchronized may be an eNB, or a network node that needs to perform time synchronization for MBSFN transmission, such as a macro base station or a micro cell base station. In the embodiment of the present invention, eNB...

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Abstract

The embodiment of the invention provides a method, device and system for MBSFN (multicast broadcast single frequency network) way transmission, and the method comprises the following steps: acquiring clock synchronization state information of a network node; determining the network node in the synchronization state according to the clock synchronization state information; and utilizing the network node in the synchronization state for MBSFN transmission. The embodiment of the invention specifically stipulates that the synchronization of the network node for MBSFN transmission can be ensured by acquiring the clock synchronization state information of the network node before the MBSFN way transmission, thereby reducing the interference of a system and increasing the transmission gain.

Description

technical field [0001] The present invention relates to the field of mobile communication, in particular to a method, device and system for MBSFN transmission. Background technique [0002] Multimedia Broadcast / Multicast Service (MBMS, Multimedia Broadcast Multicast Service) is an important feature introduced by the 3rd Generation Partnership Project (3GPP, 3rd Generation Partnership Project) organization in the R6 version. A point-to-multipoint service in which multiple users transmit data at the same time, so that network (including core network and access network) resources are shared, and services are provided to a large number of users with the same needs at the same time with fewer resources. Evolved Multimedia Broadcast / Multicast Service (eMBMS, Evolved Multimedia Broadcast Multicast Service) is based on MBMS for the Long Term Evolution (LTE, Long Term Evolution) system in terms of logical architecture, business mode, transmission mode and channel structure. Signific...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/26H04W4/06H04W56/00
Inventor 谢雷邢平平
Owner HUAWEI TECH CO LTD
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