US 12,004,084 B2
Methods and apparatuses for channel access and recovery wake-up radios
Xiaofei Wang, Cedar Grove, NJ (US); Li-Hsiang Sun, San Diego, CA (US); Hanqing Lou, Syosset, NY (US); Oghenekome Oteri, San Diego, CA (US); Joseph S. Levy, Merrick, NY (US); Rui Yang, Greenlawn, NY (US); and Alphan Sahin, Westbury, NY (US)
Assigned to INTERDIGITAL PATENT HOLDINGS, INC., Wilmington, DE (US)
Filed by INTERDIGITAL PATENT HOLDINGS, INC., Wilmington, DE (US)
Filed on Jul. 19, 2022, as Appl. No. 17/868,047.
Application 17/868,047 is a continuation of application No. 16/977,606, granted, now 11,395,231, previously published as PCT/US2019/020548, filed on Mar. 4, 2019.
Claims priority of provisional application 62/637,747, filed on Mar. 2, 2018.
Claims priority of provisional application 62/722,515, filed on Aug. 24, 2018.
Prior Publication US 2022/0353821 A1, Nov. 3, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 52/02 (2009.01)
CPC H04W 52/0235 (2013.01) 18 Claims
OG exemplary drawing
 
1. A method for use in a station (STA), the method comprising:
receiving, from an access point (AP), a frame that includes a wake-up radio (WUR) discovery element indicating a plurality of WUR discovery channels, wherein the plurality of WUR discovery channels includes a WUR discovery channel of the AP that the STA is associated with and another WUR discovery channel of another AP that the STA is not associated with; and
receiving, using at least one of the plurality of WUR discovery channels, at least one WUR frame of a plurality of WUR frames, wherein the at least one WUR frame is in a WUR physical layer protocol data unit (WUR PPDU) format.