IP Library Granted Patent US 12,581,407
Granted Patent B2
US 12,581,407 · App. 17/950,031 · Granted Mar 17, 2026

Systems and methods of restricted TWT for wireless communication

Inventors: Chunyu Hu (Saratoga, CA); Chittabrata Ghosh (Fremont, CA); Binita Gupta (San Diego, CA); Muhammad Kumail Haider (Sunnyvale, CA)
Assignee: Meta Platforms Technologies, LLC
H04W52/0216H04W74/0816H04W84/12
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Quick Facts
Patent No.
US 12,581,407
App. No.
17/950,031
Granted
Mar 17, 2026
Kind
B2
Abstract

A device may include one or more processors. The one or more processors may be configured to determine a capabilities code indicating at least one of a plurality of defined capabilities of the device relating to restricted target wake time (rTWT) operations in a wireless local area network (WLAN). The one or more processors may be configured to wirelessly transmit, via a transmitter, a first frame including the capabilities code.

Claims (10)

1 . A device comprising:

one or more processors configured to:

determine a capabilities code among a plurality of capabilities codes each indicating a respective one of a plurality of defined capabilities of the device relating to restricted target wake time (rTWT) operations in a wireless local area network (WLAN), wherein the plurality of defined capabilities include (1) a capability that does not relate to the rTWT operations, (2) a capability to complete or terminate a transmission by a start time of a rTWT service period (SP) assigned to another device, and (3) a capability to perform the rTWT operations; and

wirelessly transmit, via a transmitter, a first frame including the capabilities code.

2 . The device of claim 1 , wherein:

the first frame is a management frame including an information element (IE), and the capabilities code is included in the IE of the management frame.

3 . The device of claim 1 , wherein

the rTWT operations include at least one of setting up a rTWT schedule or establishing a membership of a rTWT schedule.

4 . The device of claim 1 , wherein the one or more processors are configured to:

obtain a transmit opportunity (TXOP) before the start time such that a duration of the TXOP ends before the start time.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 8, 2022
From: HU, CHUNYU; GHOSH, CHITTABRATA; GUPTA, BINITA; HAIDER, MUHAMMAD KUMAIL
To: META PLATFORMS TECHNOLOGIES, LLC
Reel/Frame 062025/0027 →
Continuity (3)
Provisional Application 63298805 · Jan 12, 2022
Provisional Application 63270316 · Oct 21, 2021
Related Publication 20230130117A1 · Apr 27, 2023
References Cited (8)
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Hu C., et al., “CC36-CR-35.6 Restricted TWT Announcement,” IEEE Draft, Aug. 12, 2021, vol. 802.11 EHT; 802.11be, No. 1, pp. 1-7, Retrieved from the Internet: URL: https://mentor.ieee.org/802.11/dcn/21/11-21-1147-01-00be… [cited by applicant]
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Hu C., et al., “PDT-MAC-Restricted-TWT-TBDs-CRs-Part1,” IEEE Draft; IEEE 802.11-21/0462r9, Facebook Inc, Mar. 2021, 7 Pages, Retrieved from the Internet URL: https://mentor.IEEE.org/802.11/dcn/21/11-21-0462-09-00be-pdt-… [cited by applicant]
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