US 11,894,909 B2
Sensor assisted beam tracking
Yakun Sun, San Jose, CA (US); Rohit U. Nabar, Sunnyvale, CA (US); Mithat C. Dogan, San Jose, CA (US); Parvathanathan Subrahmanya, Sunnyvale, CA (US); Han Yan, Cupertino, CA (US); and Louay Jalloul, San Jose, CA (US)
Assigned to APPLE INC., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on Aug. 1, 2022, as Appl. No. 17/878,863.
Claims priority of provisional application 63/240,852, filed on Sep. 3, 2021.
Prior Publication US 2023/0080785 A1, Mar. 16, 2023
Int. Cl. H04L 5/12 (2006.01); H04B 7/08 (2006.01); H04B 7/06 (2006.01); H04B 7/0426 (2017.01)
CPC H04B 7/086 (2013.01) [H04B 7/043 (2013.01); H04B 7/0639 (2013.01); H04B 7/0695 (2013.01)] 17 Claims
OG exemplary drawing
 
1. One or more non-transitory computer-readable media having instructions that, when executed by one or more processors, cause a user equipment (UE) to:
perform a plurality of beam measurements corresponding to a beam received by the UE;
determine a plurality of local angle of arrival (AoA) estimates corresponding to the beam based on the plurality of beam measurements;
convert the plurality of local AoA estimates to a plurality of global AoA estimates;
determine a global AoA based on the plurality of global AoA estimates;
utilize the global AoA for identification of a beam received from a base station;
determine whether a reliability threshold has been achieved for the global AoA based on a probability of the global AoA being an actual global AoA; and
determine which of a sensor based AoA estimation state or a sensor assisted beam tracking state is to be implemented based on whether the reliability threshold has been achieved.