Cooperative beamforming method and base station

A beamforming method and beamforming technology, applied in baseband system components, diversity/multi-antenna systems, space transmit diversity, etc., can solve the problem of reducing the performance of edge users, so as to improve system throughput and reduce interference , the effect of expanding coverage

Inactive Publication Date: 2019-08-23
POTEVIO INFORMATION TECH CO LTD
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  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

For example, users at the edge of a cell will receive simultaneous alignment of beams from the eNB of the main serving cell and neighboring cells, which will greatly reduce the performance of edge users

Method used

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  • Cooperative beamforming method and base station
  • Cooperative beamforming method and base station
  • Cooperative beamforming method and base station

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Embodiment Construction

[0052] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0053] Those skilled in the art will understand that unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the word "comprising" used in the description of the present invention refers to the presence of said features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, Integers, steps, operations, elements, components, and / or groups thereof.

[0054] Those sk...

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Abstract

The invention provides a cooperative beam forming method and a base station. The method comprises the steps of: according to received monitoring reference information SRS, respectively acquiring uplink channel coefficients of a cooperative user of a main cell and each edge user of a cooperative cell; according to the uplink channel coefficient of the cooperative user of the main cell and the uplink channel coefficient of each edge user of the cooperative cell, calculating channel correlation between the cooperative user of the main cell and any one edge user of the cooperative cell; according to the channel correlation, determining edge users in the cooperative cell, which share a cooperative frequency band of the cooperative user of the main cell; and when carrying out downlink beam forming, carrying out beam forming on downlink scheduling data of the edge users sharing the cooperative frequency band. According to the cooperative beam forming method and the base station which are provided by the invention, interference of the edge users of the cooperative cell to the cooperative user of the main cell can be effectively inhibited, throughputs of a cell edge and an entire system are improved, and meanwhile, a cell coverage range is enlarged.

Description

technical field [0001] The present invention relates to the technical field of communications, in particular to a cooperative beamforming method and a base station. Background technique [0002] In order to meet the requirements of LTE-A (Long Term Evolution-Advanced, the subsequent evolution of LTE technology), especially the throughput requirements of edge cells, two CoMP (Coordinated Multiple Points, Coordinated Multiple Points) methods are mainly used for the downlink: one is CB / CS (Coordinated Beamforming / Scheduling, beamforming / coordinated scheduling), by changing the beam direction of the coordinated cell to the interfering user, to reduce the interference to the target user of the main serving cell; the other is JT (Joint Transmission, joint transmission ), that is, multi-point joint coordinated transmission. This method requires multiple coordinated nodes to transmit in parallel, and jointly provide services to target users in the main serving cell. The nodes need t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/06H04L25/02
Inventor 金奕丹
Owner POTEVIO INFORMATION TECH CO LTD
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