US 12,345,793 B2
Using doppler for multipath detection and mitigation in RF-based positioning
Yuxiang Peng, Sunnyvale, CA (US); Ning Luo, Cupertino, CA (US); Bo Zheng, Sunnyvale, CA (US); Jingchao Bao, San Diego, CA (US); Min Wang, Tustin, CA (US); Gengsheng Zhang, Cupertino, CA (US); and Yinghua Yang, San Jose, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Jun. 28, 2022, as Appl. No. 17/809,533.
Prior Publication US 2023/0417855 A1, Dec. 28, 2023
Int. Cl. G01S 1/38 (2006.01); G01S 19/22 (2010.01); G01S 19/37 (2010.01); H04W 64/00 (2009.01)
CPC G01S 1/38 (2013.01) [G01S 19/22 (2013.01); G01S 19/37 (2013.01); H04W 64/00 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An apparatus of positioning at a user equipment (UE), comprising:
at least one memory;
a receiver; and
at least one processor coupled to the at least one memory and the receiver, the at least one processor is configured to:
receive, via the receiver, signals from one or more entities;
determine whether each received signal is a multipath signal based on a Doppler shift measurement; and
de-weight by W a measurement of each signal in one or more signals of the received signals in estimating a position of the UE when the respective received signal is determined to be the multipath signal, where 0≤W<1.