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A beam training method, an initiator device, and a responder device

A technology of beam training and responder, which is applied in the direction of transmission path sub-channel allocation, digital transmission system, electrical components, etc., and can solve the problem of low efficiency of beam training

Active Publication Date: 2021-06-22
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the uplink beam training of the MIMO system is initiated by the STA itself, and the beam training efficiency is not high

Method used

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  • A beam training method, an initiator device, and a responder device
  • A beam training method, an initiator device, and a responder device
  • A beam training method, an initiator device, and a responder device

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Embodiment Construction

[0056] Embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0057] A beam training method disclosed in the embodiment of the present application is applied in a wireless communication system supporting MIMO technology. The method is applied in the beam training process between the initiator and the responder, so that the responder transmits beams, and the initiator Beam training is performed on the receiving beam, or beam training is performed on both the transmitting and receiving sides at the same time. The beam training refers to training the sending beam of the responder, or the receiving beam of the initiator, or the simultaneous sending and receiving. The purpose of the training is to select one or more optimal beams from one or more candidate beams, or to generate one or more optimal beams based on the one or more candidate beams. The optimal beam may be a beam with maximum signal strength, or a beam with minimum...

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PUM

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Abstract

The present application provides a beam training method, an initiator device, and a responder device. The method includes: the initiator sends beam training indication information, and the beam training indication information includes information of one or more responders participating in beam training. Identification information, and one or both of resource information allocated to the one or more responders and training sequence information allocated to the one or more responders. An uplink training signal sent by the responding party according to the beam training indication information. The initiator sends training feedback information, where the training feedback information includes information about beams selected for the one or more responders. It can be seen that the initiator can allocate resources and / or training sequences for uplink beam training to one or more responders. Therefore, the initiator can schedule uplink beam training of one or more responders, thereby improving the efficiency of uplink beam training. efficiency.

Description

technical field [0001] The present application relates to the communication field, and in particular to a beam training method, an initiator device, and a responder device. Background technique [0002] Multiple-input multiple-output (MIMO) technology is a technology that uses directional beams for communication, that is, the transmitting end concentrates the transmission energy in a certain direction, while the energy in other directions is very small. to increase antenna gain. [0003] figure 1 As a MIMO system, the network equipment includes multiple antenna elements and one or more antenna signal weighting modules. The antenna signal weighting module can adjust the antenna signal weight vector (antenna weight vector) based on a digital or analog method; or adopt a cascade method and simultaneously adopt a digital or analog method to adjust the antenna signal weight vector. The antenna signal weighting vector will determine the beam direction of the sending and receivi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L5/00
CPCH04B7/0413H04B7/0617H04B7/0619H04B7/086H04L5/0048H04W72/046H04W72/20H04L5/00H04W72/04H04B7/0695H04B7/063H04B7/0404
Inventor 李彦淳
Owner HUAWEI TECH CO LTD