US 12,445,944 B2
Mirrored split passive scanning
Sandip Homchaudhuri, San Jose, CA (US); Alireza Raissinia, Monte Sereno, CA (US); Javier Del Prado Pavon, Los Gatos, CA (US); Shuibing Dai, Cupertino, CA (US); Zhao Li, Shanghai (CN); Vikram Phogat, Fremont, CA (US); and Prasanna Basaralu Subramanya, Santa Clara, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Appl. No. 18/043,006
Filed by QUALCOMM Incorporated, San Diego, CA (US)
PCT Filed Feb. 23, 2021, PCT No. PCT/CN2021/077381
§ 371(c)(1), (2) Date Feb. 24, 2023,
PCT Pub. No. WO2022/077826, PCT Pub. Date Apr. 21, 2022.
Claims priority of provisional application 63/091,917, filed on Oct. 14, 2020.
Prior Publication US 2023/0319691 A1, Oct. 5, 2023
Int. Cl. H04W 48/16 (2009.01); H04W 48/12 (2009.01)
CPC H04W 48/16 (2013.01) [H04W 48/12 (2013.01)] 30 Claims
OG exemplary drawing
 
1. A method of wireless communication performed by an apparatus of a wireless communication device, comprising:
configuring an off-channel scan time for one or more passive scanning operations to be less than or equal to a maximum off-channel scan duration permitted by a first wireless access point (AP) operating on a first wireless channel;
selecting a home channel dwell time for the one or more passive scanning operations;
configuring a scanning period of the one or more passive scanning operations to be less than or equal to a maximum scanning period permitted by the first wireless AP; and
performing the one or more passive scanning operations on one or more corresponding second wireless channels, each of the one or more passive scanning operations comprising:
alternating between:
listening for beacon frames on a respective second wireless channel for the configured off-channel scan time;
dwelling on the first wireless channel for the selected home channel dwell time during a first portion of the configured scanning period; and
listening for beacon frames on the respective second wireless channel during a second portion of the configured scanning period, the second portion spanning a period of time defined by the selected home channel dwell time.