Method and equipment for determining multi-cell channel information

A channel information and determination method technology, applied in the field of communication, can solve the problems that the base station cannot accurately predict UE interference, UE cannot select MCS frequency domain scheduling, etc., and achieve the effect of improving throughput and processing efficiency

Active Publication Date: 2011-04-27
DATANG MOBILE COMM EQUIP CO LTD
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Problems solved by technology

[0015] In actual operation, the interference received by the uplink and downlink is generally different, and the base station cannot accurately predict the interference received by the UE. Not only that, the adoption of joint scheduling and other schemes makes the interference level of the cooperating cell change, and the UE in the Changes in interference levels cannot be predicted when channel information feedback is performed
[0016] Based on the above reasons, only based on the channel information fed back by the UE or the channel information obtained by SRS, the base station cannot accurately select the MCS and perform frequency domain scheduling for the UE.

Method used

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  • Method and equipment for determining multi-cell channel information

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Embodiment Construction

[0040] As described in the background, the existing technical solution only bases on the channel information fed back by the UE or the channel information obtained by the SRS, and the base station cannot accurately select an MCS for the UE and perform frequency domain scheduling.

[0041] To solve the above problems, the base station can use the multi-cell channel quality information fed back by the terminal and the resource information allocated by each cell to the terminal to determine the signal-to-interference and noise ratio, and perform user scheduling, resource allocation and MCS selection based on this.

[0042] Based on the above technical idea, the embodiment of the present invention proposes a multi-cell channel information determination method, which is applied to a mobile communication system including multiple cells. One of the multiple cells is the serving cell of the terminal, and the other cells are The cooperative cell of the terminal, the base station corresp...

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Abstract

The embodiment of the invention discloses a method and equipment for determining multi-cell channel information. Multi-cell channel quality information fed back by a terminal, channel state information between each cell and the terminal and interference information of each cell to the resource information distributed by the terminal are utilized in a base station, and then user scheduling, interference coordination and modulation and coding mode selection are performed so as to improve the throughput and processing efficiency of multi-cell combined processing.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method and equipment for determining channel information of multiple cells. Background technique [0002] In the 3GPP LTE-Advanced (Long Term Evolution Advanced, advanced long-term evolution) system, CoMP (Co-ordinated Multi-Point Transmission, multi-point coordinated transmission) technology will be used to improve the service quality of cell edge users. [0003] Coordinated multi-point transmission technology improves the quality of user received signals and reduces inter-cell interference through joint scheduling or coordinated transmission of multiple geographically separated cells, thereby effectively improving system capacity and spectral efficiency of edge users. [0004] Coordinated multi-point transmission technical solutions are mainly divided into two categories: joint scheduling and joint transmission. [0005] Joint scheduling is to allocate mutuall...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/08H04W72/12H04L1/00
Inventor 喻晓冬高秋彬缪德山孙韶辉肖国军
Owner DATANG MOBILE COMM EQUIP CO LTD
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