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Method and apparatus for beam training

A beam training and beam direction technology, applied in the field of beam training, can solve problems such as inability to receive and align beams

Active Publication Date: 2021-10-01
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

That is to say, when both the transmitting and receiving parties use directional antennas to transmit and receive, the two devices may be able to communicate, because the beam training frames cannot be received, and the beams cannot be aligned.

Method used

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  • Method and apparatus for beam training
  • Method and apparatus for beam training
  • Method and apparatus for beam training

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Embodiment Construction

[0095] The technical solutions in the present application will be described below in conjunction with the drawings.

[0096] It should be understood, the application of the present embodiment can be applied WLAN (wireless local area network, WLAN), and embodiments of the application may be applied to the current WLAN International Institute of Electrical and Electronic Engineering (instituteof electrical and electronics engineers, IEEE) 802.11 family of protocols using any one of a protocol. A WLAN may comprise one or more basic service sets (basic service set, BSS), a basic service set network node comprises an access point (access point, AP) and station (station, STA). IEEE 802.11ad the original BSS based on the introduction of personal basic service set (personal basic service set, PBSS) and a control node personal basic service set (PBSS control point, PCP). Each personal basic service set and may comprise a plurality of associated AP PCP / STA to the AP / PCP's.

[0097] fig...

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PUM

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Abstract

The present application provides a beam training method and device, which can use a directional antenna to send and receive beam training frames in an outdoor backhaul scenario, and then align beams. The beam training method includes: the first device sends at least one first sector scanning SSW frame to at least one second device by using a first beam direction and a first modulation and coding strategy MCS, wherein the data rate of the first MCS is Greater than or equal to 27.5Mbps; the first device receives the first sector scanning feedback SSW Feedback frame sent by the second device after the feedback offset indicated in the first SSW frame; the first device receives After the first SSW Feedback frame, send a first sector scan confirmation SSW ACK frame to the second device after the acknowledgment offset indicated in the first SSW frame.

Description

Technical field [0001] The present application relates to the field of communications, and more particularly, to methods and apparatus for beam training in the field of communications. Background technique [0002] The Internet of Thing, IoT is very dispersed and flexible. If each access point (Access Point, AP) uses traditional fiber biochemical, the network deployment cost will be high. At this time, when a wireless communication connection is used between some access points, it can not only meet the distribution and flexible requirements of the IOT service, but also reduce the deployment cost of the network. The millimeter wave band has a large amount of spectrum, and can inherit more antenna element (Element), and directional transmission can be achieved, so that the wireless return system can be used. At the same time, in the 60 GHz mm wave band, there is a wireless access device defined by the International Electronic Electronic Engineering Society (IEEE) 802.11ads Engineer...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/06
CPCH04B7/0617H04B7/0623H04B7/0684
Inventor 刘劲楠李德建
Owner HUAWEI TECH CO LTD
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