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Method for transmitting broadcasting multicasting service and system thereof

A technology of broadcast multicast service and transmission method, which is applied in the directions of broadcast broadcast, broadcast service distribution, broadcast device, etc., and can solve the problem of low power of broadcast multicast service.

Active Publication Date: 2007-10-31
HUAWEI TECH CO LTD
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0014] The present invention proposes a broadcast and multicast service transmission method and its system to solve the problem in the prior art that users in the transition zone between unicast cells and broadcast multicast cells receive broadcast and multicast services with low power

Method used

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  • Method for transmitting broadcasting multicasting service and system thereof
  • Method for transmitting broadcasting multicasting service and system thereof
  • Method for transmitting broadcasting multicasting service and system thereof

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Embodiment Construction

[0083] The technical scheme of the present invention is aimed at the receiving power of the MBMS service received by the user in the transition zone between the broadcast-multicast cell and the adjacent unicast cell using the multi-cell transmission mode to transmit the MBMS service based on frequency reuse between different cells. At the same time, considering that when the unicast traffic in the unicast cell is relatively small, there may be a probability that the frequency resources occupied by the broadcast-multicast cell for transmitting MBMS services will not be used. The frequency resources occupied by broadcast cells to transmit MBMS services and may not be used by unicast services are used to transmit MBMS service data synchronously with broadcast multicast cells. The receiving power of the users in the transition zone between adjacent unicast cells for receiving the MBMS service is improved, thereby improving the reception performance of the users in the transition zo...

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Abstract

The invention discloses a transmission method for broadcast multicast service that includes it determines the occupied frequency source of broadcast multicast section transmitting the service data of broadcast multicast service based on several sections transmission mode in the honeycomb section with frequency reusing; chooses the corresponding frequency source which has the same frequency of determined frequency source in the broadcast section adjacent with multicast sections; said single-cast section based on the chosen frequency source and the broadcast multi-cast section based on the determined frequency source transmit the broadcast multicast service synchronously. The invention also discloses transmission system of broadcast multicast service. The invention can improves the receiving property in the transition zone between the single-cast sections and the broadcast multi-cast sections.

Description

technical field [0001] The invention relates to the frequency multiplexing technology and the broadcast multicast technology in the mobile communication network, in particular to a broadcast multicast service transmission method and its system. Background technique [0002] In order to effectively utilize limited spectrum resources, the current mobile communication technology proposes to reuse frequency resources in different geographical locations of the cellular network. As shown in Figure 1, it is a schematic diagram of the multiplexing state of frequency multiplexing between different cells in a mobile communication network based on a multiplexing factor of 1. For a cellular mobile communication network with a multiplexing factor of 1, each cell uses The same frequency resources, but the users at the edge of the cell will be interfered by users in other adjacent cells, so the signal-to-interference ratio obtained by the users at the edge of the cell will be worse. [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q7/36H04H1/00H04H20/00H04W4/06
CPCH04W72/005H04W72/30
Inventor 王俊伟周晓
Owner HUAWEI TECH CO LTD
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