US 12,225,584 B2
Restricted target wait time (R-TWT) operations and parameters
Liangxiao Xin, San Jose, CA (US); Mohamed Abouelseoud, Burlingame, CA (US); Li-Hsiang Sun, San Jose, CA (US); and Qing Xia, San Jose, CA (US)
Assigned to SONY GROUP CORPORATION, Tokyo (JP); and SONY CORPORATION OF AMERICA, New York, NY (US)
Filed by SONY GROUP CORPORATION, Tokyo (JP); and SONY CORPORATION OF AMERICA, New York, NY (US)
Filed on Feb. 24, 2022, as Appl. No. 17/679,798.
Claims priority of provisional application 63/211,683, filed on Jun. 17, 2021.
Claims priority of provisional application 63/192,656, filed on May 25, 2021.
Prior Publication US 2022/0386372 A1, Dec. 1, 2022
Int. Cl. H04W 74/08 (2024.01); H04L 5/00 (2006.01); H04W 48/16 (2009.01); H04W 72/04 (2023.01); H04W 72/53 (2023.01); H04W 74/0816 (2024.01)
CPC H04W 74/0816 (2013.01) [H04L 5/0073 (2013.01); H04L 5/0098 (2013.01); H04W 48/16 (2013.01); H04W 72/53 (2023.01)] 20 Claims
OG exemplary drawing
 
1. An apparatus for wireless communication in a network, the apparatus comprising:
(a) a wireless communication circuit, as a wireless station (STA) operating as either a regular STA or an Access Point (AP) STA, for wirelessly communicating with other wireless stations (STAs) using a carrier sense multiple access/collision avoidance (CSMA/CA) mechanism on a wireless local area network (WLAN);
(b) a processor coupled to said wireless communication circuit for operating on the WLAN;
(c) a non-transitory memory storing instructions executable by the processor for communicating with other STAs; and
(d) wherein said instructions, when executed by the processor, perform steps of a wireless communications protocol for said wireless communication circuit, comprising:
(i) reusing broadcast target wake time (B-TWT) signaling as defined in IEEE 802.11ax for establishing a restricted TWT (R-TWT);
(ii) indicating within said B-TWT, using a bit of a broadcast TWT parameter set field which is reserved in IEEE 802.11ax, for indicating use of R-TWT; and
(iii) indicating additional settings to specify traffic flow for R-TWT in response to utilizing other bits in a broadcast TWT recommendation field which are reserved in IEEE 802.11ax.