US 11,722,840 B2
Angle of arrival (AOA) positioning method and system for positional finding and tracking objects using reduced attenuation RF technology
Truman Prevatt, Brooksville, FL (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 Jun. 8, 2021, as Appl. No. 17/342,398.
Application 17/342,398 is a continuation of application No. 16/592,183, filed on Oct. 3, 2019, granted, now 11,070,942.
Application 16/592,183 is a continuation of application No. 16/137,417, filed on Sep. 20, 2018, granted, now 10,440,512, issued on Oct. 8, 2019.
Application 16/137,417 is a continuation of application No. 15/728,424, filed on Oct. 9, 2017, granted, now 10,091,616, issued on Oct. 2, 2018.
Application 15/728,424 is a continuation of application No. 15/289,033, filed on Oct. 7, 2016, granted, now 9,813,867, issued on Nov. 7, 2017.
Application 15/289,033 is a continuation in part of application No. 13/566,993, filed on Aug. 3, 2012, granted, now 9,507,007, issued on Nov. 29, 2016.
Claims priority of provisional application 62/290,087, filed on Feb. 2, 2016.
Claims priority of provisional application 62/239,195, filed on Oct. 8, 2015.
Prior Publication US 2021/0306800 A1, Sep. 30, 2021
Int. Cl. H04W 24/00 (2009.01); H01Q 1/24 (2006.01); H04L 5/00 (2006.01); G01S 13/87 (2006.01); G01S 13/76 (2006.01); G01S 13/24 (2006.01); H01Q 21/28 (2006.01); G01S 13/46 (2006.01); H04W 4/02 (2018.01); G01S 5/02 (2010.01); G01S 13/22 (2006.01); G01S 5/14 (2006.01); G01S 3/74 (2006.01); G01S 5/10 (2006.01)
CPC H04W 4/023 (2013.01) [G01S 3/74 (2013.01); G01S 5/0215 (2013.01); G01S 5/0218 (2020.05); G01S 5/0252 (2013.01); G01S 5/0258 (2020.05); G01S 5/0263 (2013.01); G01S 5/0273 (2013.01); G01S 5/10 (2013.01); G01S 5/14 (2013.01); G01S 13/222 (2013.01); G01S 13/24 (2013.01); G01S 13/767 (2013.01); G01S 13/878 (2013.01); H01Q 1/241 (2013.01); H01Q 1/246 (2013.01); H01Q 21/28 (2013.01); H04L 5/005 (2013.01); H04L 5/0048 (2013.01); G01S 2013/466 (2013.01); G01S 2013/468 (2013.01)] 34 Claims
OG exemplary drawing
 
1. A method for determining an elevation of a user equipment (UE) in communication with a wireless system, the method comprising:
identifying a plurality of signals from receive channels associated with at least two antennas or four or more omnidirectional antennas as previously known signals based on buffered I/Q samples associated with each of the signals;
based on the previously known signals from each receive channel determining an angle of arrival from the UE to the at least two antennas or the four or more omnidirectional antennas, wherein determining the angle of arrival includes determining a sub-sample estimation of at least one of a direct line of sight (DLOS) flight time and a direct path flight time from the UE to each antenna among the at least two antennas or the four or more omnidirectional antennas, wherein the sub-sample estimation mitigates a mirror image of a true line of bearing (LOB) between the UI and the at least two antennas or the four or more omnidirectional antennas; and
utilizing the angle of arrival to calculate the elevation of the UE.