US 12,464,396 B2
Channel sounding method and communication apparatus
Dongcheng Pan, Nanjing (CN); Peng Chen, Nanjing (CN); Bo Yang, Nanjing (CN); Yinliang Hu, Nanjing (CN); and Junhui Wang, Shenzhen (CN)
Assigned to Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Guangdong (CN)
Filed on Nov. 23, 2022, as Appl. No. 17/993,331.
Application 17/993,331 is a continuation of application No. PCT/CN2021/090598, filed on Apr. 28, 2021.
Claims priority of application No. 202010457081.3 (CN), filed on May 26, 2020.
Prior Publication US 2023/0090009 A1, Mar. 23, 2023
Int. Cl. H04L 12/26 (2006.01); H04W 24/08 (2009.01); H04W 24/10 (2009.01)
CPC H04W 24/10 (2013.01) [H04W 24/08 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A channel sounding method, comprising:
receiving, by a first access point, a channel transfer command frame from a controller or a central access point, wherein the channel transfer command frame indicates the first access point to send a channel sounding result of at least one station to a second access point, the channel transfer command frame comprises identifier information of the second access point, identifier information of the at least one station, and a first sounding dialog token number, the at least one station is associated with the first access point, and the first sounding dialog token number is used by the first access point to identify whether the channel sounding result of the at least one station belongs to the first access point; and
sending, by the first access point, a channel transfer frame to the second access point based on the channel transfer command frame, wherein the channel transfer frame carries a channel sounding result corresponding to the first sounding dialog token number, identifier information of the first access point, and the identifier information of the at least one station.