Method for dynamically adjusting multimedia broadcasting single frequency network area

A single frequency network area and multimedia broadcasting technology, applied in the field of communication, can solve the problems of not considering whether the receiving user has gain, resource waste, etc., and achieve the effect of improving the utilization rate of wireless spectrum and avoiding the effect of community resources

Active Publication Date: 2013-10-09
CHONGQING UNIV OF POSTS & TELECOMM
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Problems solved by technology

It does not consider whether the MBSFN transmission mode in this cell will benefit the receiving users in the entire M...

Method used

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  • Method for dynamically adjusting multimedia broadcasting single frequency network area
  • Method for dynamically adjusting multimedia broadcasting single frequency network area
  • Method for dynamically adjusting multimedia broadcasting single frequency network area

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[0049] Such as figure 1 As shown, through the counting process, the number of users receiving MBMS services in each cell is counted; because users have the characteristics of mobility and random selection of receiving services, it is possible that there are users activated or users outside the MBSFN area in the previous MBSFN reconfiguration period Moving out of the current MBSFN area needs to receive the multicast service, so the counting process is aimed at all cells under the area control device.

[0050] According to the statistical results, all the cells are divided into α-type, β-type, and γ-type cell sets. The α-type cell set represents the central cell with MBMS users. To avoid interference with the surrounding SFN, SFN transmission must be enabled; Large macro-diversity gain; γ-type cells are adjacent cells of β-type cells without MBMS users. For the sake of macro-diversity gain, the MBSFN transmission mode can be selectively turned on or off.

[0051] The method of...

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Abstract

A method for dynamically adjusting a multimedia broadcasting single frequency network area relates to the technical field of communication. The method can divide a cell into a single frequency network center cell alpha with MBMS users, a single frequency network edge area beta with the MBMS users and a single frequency network edge cell gamma without the MBMS users according to whether MBMS user distribution exists. The method comprises the steps of sequentially comparing the MBMS user number of the single frequency network edge area with the MBMS users in the cell and sequentially checking the contribution degree of a cell without the MBMS users at the edge on the whole single frequency network. If the MBMS user number is larger than the threshold value, a single frequency network transmission mode of the cell is opened, or the target cell is classified as a cell set without the MBMS users. The MBMS users in the cell can be selectively borne through PTP or MBSFN to provide MBMS service. By means of user distribution and contribution degree, the method can reasonably and dynamically adjust an MBSFN area, prevents unnecessary cell resources from being kept and meanwhile improves wireless spectrum efficiency.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a method for adjusting and optimizing the area of ​​a multimedia broadcasting single frequency network. Background technique [0002] With the rapid development of the mobile Internet, a large number of mobile data multimedia services and high-bandwidth multimedia services have emerged, such as video conferencing, TV broadcasting, and video-on-demand. In order to meet the growing multimedia service requirements of similar users, 3GPP (Third Generation Partnership Project) introduced Multimedia Broadcast / Multicast Service (MBMS) in R6. Send to multiple receiving users. In subsequent versions of 3GPP, MBMS will continue to be enhanced and evolved, and evolved multimedia broadcast / multicast (e-MBMS) will be introduced, and multimedia broadcast single frequency network (MBSFN) technology will be adopted in the wireless access network. In the MBSFN mode, the MBMS service data ...

Claims

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Application Information

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IPC IPC(8): H04W4/06H04W16/18
Inventor 唐宏张浩杨浩澜蒋毅田燕谢飞何普胜何丹霞师彦静郑茂生陈惠
Owner CHONGQING UNIV OF POSTS & TELECOMM
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