US 12,474,470 B2
Method for sensing sneezing based on wireless signal, and related apparatus
Rui Du, Shenzhen (CN); Wen Tong, Ottawa (CA); Xiao Han, Shenzhen (CN); Mingjie Dong, Shenzhen (CN); Danny Kai Pin Tan, Shenzhen (CN); Yingxiang Sun, Shenzhen (CN); Xiaohui Peng, Shenzhen (CN); and Xun Yang, Shenzhen (CN)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed by Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed on Jan. 27, 2023, as Appl. No. 18/160,466.
Application 18/160,466 is a continuation of application No. PCT/CN2021/107962, filed on Jul. 22, 2021.
Claims priority of application No. 202010746355.0 (CN), filed on Jul. 29, 2020.
Prior Publication US 2023/0168372 A1, Jun. 1, 2023
Int. Cl. G01S 15/89 (2006.01); G01S 7/41 (2006.01)
CPC G01S 15/8979 (2013.01) [G01S 7/414 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
obtaining a first wireless signal that propagates in a space comprising a first object and a second object;
performing a first Doppler estimation on the first wireless signal to obtain Doppler information of the first wireless signal, wherein the Doppler information indicates a first impact of the first object on a frequency of the first wireless signal;
performing an angle of arrival estimation on the first wireless signal and a range estimation on the first wireless signal to obtain first spatial location information of the first object and second spatial location information of the second object; and
determining, based on the Doppler information, the first spatial location information, and the second spatial location information, whether the first object comprises sneeze droplets and whether the second object comprises a sneezing action.