US 11,733,341 B2
Multi-path mitigation in tracking objects using compressed RF data
Felix Markhovsky, Dallas, TX (US); Truman Prevatt, Dallas, TX (US); Russ Markhovsky, Dallas, TX (US); and Michael John Buynak, Dallas, TX (US)
Assigned to QUALCOMM Technologies, Inc., San Diego, CA (US)
Filed by Qualcomm Technologies, Inc., San Diego, CA (US)
Filed on Feb. 3, 2022, as Appl. No. 17/592,377.
Application 17/592,377 is a continuation of application No. 16/791,898, filed on Feb. 14, 2020, granted, now 11,255,945.
Application 16/791,898 is a continuation of application No. 16/367,014, filed on Mar. 27, 2019, granted, now 10,845,453, issued on Nov. 24, 2020.
Claims priority of provisional application 62/653,450, filed on Apr. 5, 2018.
Claims priority of provisional application 62/648,883, filed on Mar. 27, 2018.
Prior Publication US 2022/0155405 A1, May 19, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. G01S 5/02 (2010.01); H04W 64/00 (2009.01); G01S 7/4861 (2020.01); G01S 19/05 (2010.01); G01S 7/4865 (2020.01)
CPC G01S 5/0236 (2013.01) [G01S 5/0231 (2013.01); G01S 7/4861 (2013.01); G01S 7/4865 (2013.01); G01S 19/05 (2013.01); H04W 64/003 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method at a detector for preparing RF data for use in determining a location of a wireless mobile device in a wireless communications environment, comprising:
receiving signals from one or more receive channels that include parameters for a localization signal of the wireless mobile device, the parameters being associated with known in advance signals within the signals;
receiving metadata related to the signals;
detecting the known in advance signals from each receive channel among the one or more receive channels based on the parameters of the localization signal;
buffering a plurality of samples in a digital format extracted from the known in advance signals;
extracting data necessary for determining the location from the plurality of samples; and
sending the extracted data, the parameters of the localization signal, and the metadata to a locate server physically remote from the detector for determination of the location.