Method and device for cooperative beamforming
A beamforming and cooperative request technology, applied in the field of LTE data processing, can solve the problems of cooperative UE performance degradation, no effective solution is proposed, and the energy and direction of the beamforming beam are not optimal, so as to reduce the probability of performance degradation, The effect of avoiding conflicts and improving accuracy
Active Publication Date: 2018-12-18
DATANG MOBILE COMM EQUIP CO LTD
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Problems solved by technology
This solution is a product implementation solution adopted by some mainstream equipment manufacturers, but its main problem is that the energy and direction of the formed beam are not optimal after the cooperative UE is adjusted by the beamforming vector, so the performance of the cooperative UE will decrease
[0008] In addition, for the scenario where multiple CoMP UEs request coordination from the same coordinated cell, there is a conflict problem where multiple CoMP UEs request coordination at the same time, and no effective solution is proposed in the prior art
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[0063] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0064] One of the core ideas of the embodiments of the present invention is that, when multiple CoMP UEs request cooperation from the same coordinated cell, select a target CoMP UE from the multiple CoMP UEs, and reject the cooperation of other CoMP UEs except the target CoMP UE Request; after the target CoMP UE is selected, the target cooperating UE is determined according to the channel correlation value between the target CoMP UE and each candidate cooperating UE, and when the channel correlation value between the target CoMP UE and the target cooperating UE is less than the preset channel correlation When the threshold is set, the beamforming orthogonalization adjustment processing is not performed on the target cooperative UE;...
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A coordinated beamforming method and device. The method includes: upon receipt of coordination request from multiple coordinated multi-point user equipments (CoMP UE), determining a target CoMP UE from multiple CoMP UEs; calculating a channel correlation value between the target CoMP UE and each candidate coordinated UE in a coordinated cell; determining, on basis of channel correlation value between the target CoMP UE and each candidate coordinated UE, a target coordinated UE; if the channel correlation value between target coordinated UE and the target CoMP UE is lower than a preset lower channel correlation threshold, then not performing beamforming orthogonalization adjustment on the target coordinated UE; and if the channel correlation value between target coordinated UE and target CoMP UE is greater than or equal to the preset lower channel correlation threshold, then performing beamforming orthogonalization adjustment on target coordinated UE. The present application can greatly reduce the probability of a performance decline of the target coordinated UE.
Description
technical field [0001] The present invention relates to the technical field of LTE data processing, in particular to a cooperative beamforming method and a cooperative beamforming device. Background technique [0002] In the LTE (Long Term Evolution, Long Term Evolution) system, due to the use of OFDM (Orthogonal Frequency Division Multiplexing, Orthogonal Frequency Division Multiplexing), high-speed data is modulated onto each orthogonal sub-channel, which can effectively reduce the interference between channels. interfere with each other. However, this kind of orthogonality is only limited to the users in the current cell. Due to the frequency reuse between cells, there will be interference between users in different cells, resulting in poor cell edge performance. Therefore, the interference between cells becomes the main interference in the LTE system. . [0003] In order to solve the problem of poor cell edge performance, 3GPP (3rd Generation Partnership Project) intro...
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IPC IPC(8): H04B7/06H04B7/08
Inventor 陈先国蒋一鸣
Owner DATANG MOBILE COMM EQUIP CO LTD