US 11,751,008 B2
Angle of arrival capability in electronic devices
Neha Dawar, Plano, TX (US); Hoang Viet Nguyen, Plano, TX (US); Yuming Zhu, Plano, TX (US); Boon Loong Ng, Plano, TX (US); Yi Yang, Suwon-si (KR); Moonseok Kang, Suwon-si (KR); Aditya Vinod Padaki, Richardson, TX (US); Songwei Li, McKinney, TX (US); Moongee Cho, Seoul (KR); and Hyunchul Kim, Suwon-si (KR)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Jul. 23, 2021, as Appl. No. 17/443,321.
Claims priority of provisional application 63/059,043, filed on Jul. 30, 2020.
Prior Publication US 2022/0038846 A1, Feb. 3, 2022
Int. Cl. H04W 4/021 (2018.01); H04B 17/318 (2015.01); G01S 5/02 (2010.01)
CPC H04W 4/021 (2013.01) [G01S 5/0284 (2013.01); H04B 17/318 (2015.01)] 27 Claims
OG exemplary drawing
 
1. A method comprising:
obtaining channel information, range information, and angle of arrival (AoA) information based on wireless signals communicated between an electronic device and an external electronic device;
generating an initial prediction of a presence of the external electronic device relative to a field of view (FoV) of the electronic device based on the channel information and at least one of the range information or the AoA information, wherein the initial prediction includes an indication of whether the external electronic device is within the FoV or outside the FoV of the electronic device;
applying a moving average filter within a sliding window to the initial prediction of the presence of the external electronic device relative to the FoV of the electronic device;
comparing an average probability of being within the FoV within the sliding window to a threshold;
revising the initial prediction of the presence of the external electronic device relative to the FoV of the electronic device based on the comparison;
performing, using a tracking filter, a smoothing operation on the range information and the AoA information to generate smoothed AoA information and smoothed range information; and
determining that the external electronic device is within the FoV or outside the FoV of the electronic device based on the AoA information, the smoothed AoA information, and the initial prediction of the presence of the external electronic device relative to the FoV of the electronic device.