US 10,652,777 B2Granted

Directional link maintenance method and station STA

AssigneeHuawei Technologies Co., Ltd.

InventorsKun Zeng, Guangjian Wang, Yingpei Lin, Yan Xin

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Abstract

A directional link maintenance method and a station STA to improve accuracy and timeliness of directional link availability determined by the STA are described. In at least one embodiment, the method includes monitoring, by a first station STA, an information packet, where the information packet carries first identification information, and the first identification information is used to identify a first directional transmit beam that is used a second STA when the second STA sends the information packet; determining, by the first STA, whether the information packet is an information packet that is sent by the second STA to a third STA, and obtaining the first identification information if the information packet is an information packet that is sent by the second STA to the third STA; and determining, by the first STA, whether the first identification information matches preset second identification information.

Claims20

Dependent claims

A directional link maintenance method, comprising:

monitoring, by a first station (STA), an information packet, wherein the information packet carries first identification information, and the first identification information is used to identify a first directional transmit beam that is used by a second STA when the second STA sends the information packet;
determining, by the first STA, whether the information packet is sent by the second STA to a third STA, and obtaining the first identification information if the information packet is sent by the second STA to the third STA;
and
determining, by the first STA, whether the first identification information matches preset second identification information, and if the first identification information matches the preset second identification information, determining, by the first STA, that the first directional transmit beam matches a second directional transmit beam, and changing a value of a counter that corresponds to a directional link between the first STA and the second STA, wherein the second directional transmit beam is determined by the second STA on the directional link through beam training, and the second identification information is used to identify the second directional transmit beam.

1 more element

A station (STA), serving as a first STA and comprising:

a processor, configured to monitor an information packet, wherein the information packet carries first identification information, and the first identification information is used to identify a first directional transmit beam that is used by a second STA when the second STA sends the information packet;
determine whether the information packet is sent by the second STA to a third STA;
obtain the first identification information if the information packet is sent by the second STA to the third STA;
determine whether the first identification information matches preset second identification information;
and
if the first identification information matches the preset second identification information, determine that the first directional transmit beam matches a second directional transmit beam, and change a value of a counter that corresponds to a directional link between the first STA and the second STA, wherein the second directional transmit beam is determined by the second STA on the directional link through beam training, and the second identification information is used to identify the second directional transmit beam.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/119,324Filed 31 Aug 2018 · continuation
Priority: CN 2016 1 01195502 Mar 2016
Published: US 2018/0368020 A120 Dec 2018
Granted: 12 May 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

H04W 28/0205
Traffic management, e.g. flow control or congestion control: at the air interface
H04B 7/0408
Using two or more spaced independent antennas: using two or more beams, i.e. beam diversity
H04B 7/0617
Of weighted versions of same signal: for beam forming
H04B 7/06952
Using beam selection: selecting one or more beams from a plurality of beams, e.g. beam training, management or sweeping