Granted Patent B2

US 12,563,585 · App. 18/416,491 · Granted Feb 24, 2026

Inventors: Xiaofei Wang (North Caldwell, NJ); Guodong Zhang (Woodbury, NY)

Assignee: InteDigital Patent Holdings, Inc.

H04W72/542H04W74/0816H04W84/12

Abstract

Claims (30)

1 . A station (STA) comprising:

processor;

a receiver; and

a transmitter,

the processor and the transmitter configured to send, to an access point (AP), feedback regarding a desired channel of the STA, wherein the desired channel of the STA is a secondary channel of the AP available to monitor during a subchannel selective transmission (SST) period; and

the processor and the receiver configured to receive, from the AP, a message comprising a bitmap indicating an assigned channel of the STA, wherein the assigned channel of the STA is one secondary channel of the AP allowed for use during a target wake time (TWT) period.

2 . The STA of claim 1 , wherein the assigned channel of the STA that is allowed for use during the TWT period is the same as the desired channel of the STA.

3 . The STA of claim 1 , wherein the processor and the transmitter are further configured to access a wireless medium based on the assigned channel of the STA that is allowed for use during the TWT period.

4 . The STA of claim 1 , wherein the message comprises a beacon frame.

5 . An access point (AP) comprising:

a processor;

a receiver; and

a transmitter,

the processor and the receiver configured to receive, from a station (STA), feedback regarding a desired channel of the STA, wherein the desired channel of the STA is a secondary channel of the AP available to monitor during a subchannel selective transmission (SST) period; and

the processor and the transmitter configured to send, to the STA, a message comprising a bitmap indicating an assigned channel of the STA, wherein the assigned channel of the STA is one secondary channel of the AP allowed for use during a target wake time (TWT) period.

6 . The AP of claim 5 , wherein the assigned channel of the STA that is allowed for use during the TWT period is the same as the desired channel of the STA.

7 . The STA of claim 1 , wherein the feedback is sent on a 20 MHz primary channel of the AP.

8 . The STA of claim 1 , wherein the message is received on a primary channel of the AP.

9 . A method of use in a station (STA), the method comprising:

sending, to an access point (AP), feedback regarding a desired channel of the STA, wherein the desired channel of the STA is a secondary channel of the AP available to monitor during a subchannel selective transmission (SST) period; and

receiving, from the AP, a message comprising a bitmap indicating an assigned channel of the STA, wherein the assigned channel of the STA is one secondary channel of the AP allowed for use during a target wake time (TWT) period.

10 . The method of claim 9 , wherein the assigned channel of the STA that is allowed for use during the TWT period is the same as the desired channel of the STA.

11 . The AP of claim 5 , wherein the processor and the receiver are further configured to receive a transmission from the STA to access a wireless medium based on the assigned channel of the STA that is allowed for use during the TWT period.

12 . The AP of claim 5 , wherein the message comprises a beacon frame.

13 . The method of claim 9 , further comprising accessing a wireless medium based on the assigned channel of the STA that is allowed for use during the TWT period.

14 . The method of claim 9 , wherein the message comprises a beacon frame.

15 . The method of claim 9 , wherein the feedback is sent using a 20 MHz primary channel of the AP.

16 . The method of claim 9 , wherein the message is received on a primary channel of the AP.

17 . The AP of claim 5 , wherein the feedback is received on a 20 MHz primary channel of the AP.

18 . The AP of claim 5 , wherein the message is sent on a primary channel of the AP.

Continuity (5)

References Cited (51)