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Method and device for channel information feedback

A channel information feedback and channel information technology, applied in diversity/multi-antenna systems, space transmit diversity, electrical components, etc., can solve problems such as no support channel feedback mechanism

Active Publication Date: 2019-07-19
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is currently no channel feedback mechanism that supports multiple beamformer scenarios

Method used

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  • Method and device for channel information feedback
  • Method and device for channel information feedback
  • Method and device for channel information feedback

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Embodiment Construction

[0074] The method for channel information feedback in the embodiment of the present invention is applicable to the situation with multiple sending ends, for example, the sending end is a beamformer, the receiving end is a beam receiver, and the number of beamformers is at least two, at this time the At least two beamformers may both need to obtain channel information between themselves and the beam receiver, and at this time, channel feedback may be performed according to the channel information feedback method in the embodiment of the present invention.

[0075] Wherein, when there are multiple beamformers, there may be multiple basic service sets (Basic Service Set, BSS for short). For example, assuming there are two beamformers (BFer 1 and BFer 2) and two beam receivers (BFee 1 and BFee 2), you can associate BFee 1 with BFer 1 to form a BSS, and BFee 2 Associated with BFer 2 to form another BSS; for BFer 1, BFee 1 can be called the BSS beam receiver of BFer 1, and BFee 2 ca...

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Abstract

The present invention provides a method and device for channel information feedback, wherein the method includes: a beamformer acquires channel feedback information, and the channel feedback information includes: channel information related to the beamformer and information related to other beamformers Channel information; the channel information includes: channel information fed back by beam receivers of the basic service group, and channel information fed back by beam receivers across basic service groups. The invention realizes the channel feedback of multiple sending ends.

Description

technical field [0001] The present invention relates to communication technology, in particular to a method and device for channel information feedback. Background technique [0002] Multiple Input Multiple Output system (Multiple Input Multiple Output, referred to as: MIMO) in the wireless communication system refers to the use of multiple antennas to build multi-dimensional space resources, these multi-dimensional space resources form multiple parallel channels to transmit multiple signals to improve data throughput. Transmission rate. If the sending end of the signal can know the channel information from the sending end to the receiving end, the sending end can enhance the signal-to-noise ratio of the channel through Beamforming (abbreviation: BF) technology, thereby improving the signal reception performance of the receiving end. Currently, there are multiple methods for enabling the sending end to obtain channel information, for example, the receiving end may feed back...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/06H04B7/08
CPCH04B7/0617H04B7/0619H04B7/0621H04B7/0626
Inventor 杨讯罗毅李靖
Owner HUAWEI TECH CO LTD