US 12,477,579 B2
Wireless local area network sensing method, network device, and chip
Rui Du, Shenzhen (CN); Xiao Han, Shenzhen (CN); Chenchen Liu, Shenzhen (CN); Meihong Zhang, Shenzhen (CN); Yingxiang Sun, Shenzhen (CN); and Danny Kai Pin Tan, Shenzhen (CN)
Assigned to Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed on Sep. 21, 2022, as Appl. No. 17/949,453.
Application 17/949,453 is a continuation of application No. PCT/CN2021/083469, filed on Mar. 27, 2021.
Claims priority of application No. 202010231642.8 (CN), filed on Mar. 27, 2020.
Prior Publication US 2023/0018459 A1, Jan. 19, 2023
Int. Cl. H04W 74/00 (2009.01); H04B 7/0452 (2017.01); H04W 74/08 (2009.01); H04W 74/0816 (2024.01)
CPC H04W 74/0816 (2013.01) [H04B 7/0452 (2013.01); H04W 74/0866 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An uplink multi-user wireless local area network sensing method, comprising:
sending, by a first network device, indication information to a plurality of second network devices in a process in which the plurality of second network devices performs high frequency multiple-input multiple-output (MIMO) channel access, wherein the indication information indicates the plurality of second network devices to send uplink sensing signals;
receiving, by the first network device, the uplink sensing signals from the second network devices; and
performing, by the first network device, uplink sensing;
wherein the indication information is a predefined bit in a control trailer field; and
the predefined bit comprises a sensing indication field, a waveform or sequence set identifier field, and a direction identifier field.