US 12,219,543 B2
Beam training method and apparatus
Yanchun Li, Boulogne Billancourt (FR); and Mingjie Dong, Shenzhen (CN)
Assigned to Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Guangdong (CN)
Filed on Mar. 17, 2021, as Appl. No. 17/204,071.
Application 17/204,071 is a continuation of application No. PCT/CN2019/104951, filed on Sep. 9, 2019.
Claims priority of application No. 201811083957.1 (CN), filed on Sep. 17, 2018.
Prior Publication US 2021/0204270 A1, Jul. 1, 2021
Int. Cl. H04W 72/044 (2023.01); H04W 16/28 (2009.01); H04W 72/23 (2023.01)
CPC H04W 72/046 (2013.01) [H04W 16/28 (2013.01); H04W 72/23 (2023.01)] 28 Claims
OG exemplary drawing
 
1. A method comprising:
sending, by an access point (AP), training configuration information to a plurality of stations (STAs), wherein the training configuration information comprises a first antenna configuration indicating a plurality of first uplink beams corresponding to the plurality of STAs, wherein the plurality of first uplink beams are antenna weight vectors (AWVs) to be respectively used by the plurality of STAs for uplink transmissions to the AP;
receiving, by the AP, a plurality of training frames each sent by a corresponding STA in the plurality of STAs by using a corresponding second uplink beam, wherein the corresponding second uplink beam is comprised in the plurality of first uplink beams and is determined by the corresponding STA based on one of the plurality of first uplink beams; and
determining, by the AP based on the plurality of training frames sent by the plurality of STAs, a plurality of third uplink beams for the plurality of STAs to send uplink data.