US 12,231,994 B2
Sensing method and communication apparatus
Rui Du, Shenzhen (CN); Jian Yu, Shenzhen (CN); Xiao Han, Shenzhen (CN); and Chenchen Liu, Shenzhen (CN)
Assigned to Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed by Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed on Feb. 7, 2022, as Appl. No. 17/665,809.
Application 17/665,809 is a continuation of application No. PCT/CN2020/105860, filed on Jul. 30, 2020.
Claims priority of application No. 201910722714.6 (CN), filed on Aug. 6, 2019.
Prior Publication US 2022/0159426 A1, May 19, 2022
Int. Cl. H04W 4/38 (2018.01); H04L 1/1607 (2023.01)
CPC H04W 4/38 (2018.02) [H04L 1/1607 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A sensing method comprising:
sending, by a first device, an announcement frame to at least one second device,
wherein the announcement frame indicates to the at least one second device to perform a sensing task by using a midamble, and indicates a sensing parameter required by the at least one second device to perform the sensing task,
wherein the announcement frame comprises a sensing task type field that indicates a type of the sensing task comprising a target detection and action and behavior recognition,
wherein the target detection is used to determine at least one of a speed, a position, an angle, and a range of a target, and
wherein the action and behavior recognition is used to recognize an action or a behavior of the target; and
sending, by the first device, a physical layer protocol data unit to the at least one second device, wherein the physical layer protocol data unit comprises the midamble.