LTE-A non-codebook beam forming method based on user satisfaction

A beamforming method and user satisfaction technology, applied in space transmit diversity, diversity/multi-antenna systems, etc., can solve the problem of low fairness satisfaction, achieve satisfaction and fairness, improve user fairness, The effect of improving system performance
CN103595455AActive Publication Date: 2014-02-19HARBIN INST OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
HARBIN INST OF TECH
Publication Date
2014-02-19

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Abstract

The invention provides an LTE-A non-codebook beam forming method based on user satisfaction, and belongs to the technical field of beam forming in a mobile communication system. The problems that even though an existing beam forming method improves performance of the system, justification among different users and corresponding satisfaction of the users are low are solved. The method comprises the steps that step one, a corresponding beam forming matrix is obtained through an existing SLNR beam forming method; step two, based on the beam forming matrix obtained in the step one, SINR values and satisfaction values of all users are obtained; step three, through the obtained SINR values and the satisfaction values, amended fusion is carried out on the beam forming matrix obtained in the step one, and a beam forming matrix after amended fusion is obtained; step four, specific to the GBR service and the non-GBR service, the beam forming matrix after amended fusion in the step three is further amended through different weights to obtain the optimal beam forming matrix. The method is used for multi-user beam forming.
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Description

technical field

[0001] The invention belongs to the technical field of beamforming in a mobile communication system, in particular to an LTE-A non-codebook beamforming method based on user satisfaction. Background technique

[0002] In the LTE-A standard, MIMO technology has been further enhanced, and it can support up to 8 layers of downlink and 4 layers of uplink transmission mode. In addition, technologies such as multi-user MIMO and beamforming have also been further developed and applied. In the uplink of LTE-A, the joint detection at the eNodeB side can be used to reduce the interference between users; and considering the equipment capabilities of the downlink UE, the interference between users can be suppressed mainly through precoding or beamforming technology, where The non-codebook beamforming method has received more attention in recent years because it can take advantage of the reciprocity of the channel in TDD mode to reduce the signaling overhead of channel est...

Claims

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