EP-4740617-A1 - TARGET WAKE TIME (TWT) COORDINATION TECHNIQUES

Abstract

This disclosure provides methods, components, devices and systems for target wake time (TWT) coordination. Some aspects relate to resolving an overlap between a first time period associated with a first TWT agreement and a second time period associated with a second TWT agreement. A first wireless device may receive first scheduling information associated with a first set of one or more time periods during which the first wireless device is capable of communicating with a second wireless device in accordance with the first TWT agreement. The first wireless device may receive second scheduling information associated with a second set of one or more time periods during which the first wireless device is capable of communicating with a third wireless device in accordance with the second TWT agreement. The first wireless device may transmit availability information to resolve the overlap between the first time period and the second time period.

Inventors

• AJAMI, Abdel Karim
• PATIL, Abhishek Pramod
• CHERIAN, GEORGE
• ASTERJADHI, Alfred
• SUN, YANJUN
• HO, SAI YIU DUNCAN
• NAIK, Gaurang

Assignees

• QUALCOMM INCORPORATED

Dates

Publication Date

20260513

Application Date

20240513

Claims (20)

1. 1. A first wireless device, comprising: a processing system that includes processor circuitry and memory circuitry that stores code, the processing system configured to cause the first wireless device to: receive first scheduling information associated with a first plurality of recurring time periods during which the first wireless device is capable of communicating with a second wireless device in accordance with a first communication mode; receive second scheduling information associated with a second plurality of recurring time periods during which the first wireless device is capable of communicating with a third wireless device in accordance with a second communication mode; and transmit an indication of an availability' schedule associated with the first wireless device in accordance with resolving an overlap between at least a first time period of the first plurality of recurring time periods and a second time period of the second plurality of recurring time periods.
2. 2. The first wireless device of claim 1, wherein the processing system is further configured to cause the first wireless device to: update or terminate a target w ake time (TWT) agreement associated with the first plurality of recurring time periods or the second plurality of recurring time periods to resolve the overlap between the first time period and the second time period.
3. 3. The first w ireless device of claim 2, wherein the TWT agreement comprises one or more of a peer to peer (P2P) TWT agreement, an individual TWT agreement, a broadcast TWT agreement, or a restricted TWT agreement associated with the first plurality of recurring time periods or the second plurality of recurring time periods.
4. 4. The first wireless device of claim 1, wherein the availability schedule indicates that the first wireless device is unavailable during the second time period that overlaps with the first time period.
5. 5. The first wireless device of claim 1, wherein the availability 7 schedule indicates that the first wireless device is unavailable during the first time period that overlaps with the second time period.
6. 6. The first wireless device of claim 1, wherein the processing system is further configured to cause the first wireless device to: transmit, during the first time period that overlaps with the second time period, a frame indicating that the first wireless device is available to communicate with the third wireless device using the second communication mode.
7. 7. The first wireless device of claim 1, wherein the processing system is further configured to cause the first wireless device to: transmit, during the second time period that overlaps with the first time period, a frame indicating that the first wireless device is available to communicate with the second wireless device using the first communication mode.
8. 8. The first wireless device of claim 1, wherein the indication of the availability schedule is provided via static signaling associated with a setup phase in which one or both of a first periodic communication schedule associated with the first plurality of recurring time periods or a second periodic communication schedule associated with the second plurality of recurring time periods is configured for the first wireless device.
9. 9. The first wireless device of claim 1, wherein the indication of the availability schedule is provided via dynamic signaling that includes one or more of a management frame, a target wake time (TWT) information frame, or a TWT setup frame.
10. 10. The first wireless device of claim 1, wherein, to transmit the indication of the availability schedule, the processing system is configured to cause the first wireless device to: transmit one or more of a channel usage request frame or a target wake time (TWT) setup frame that indicates the availability schedule, wherein one or more reserved fields or field values of the channel usage request frame or the TWT setup frame indicate whether the first wireless device intends to be available during the first time period, the second time period, or both.
11. 11. The first wireless device of claim 1, wherein the availability schedule indicates an availability of the first wireless device during the first time period, an availability of the first wireless device during the second time period, or both.
12. 12. The first wireless device of claim 1, wherein the processing system is further configured to cause the first wireless device to: transmit a request for resources usable for communications between the first wireless device and the third wireless device during the first time period associated with the first communication mode.
13. 13. The first wireless device of claim 1, wherein the processing system is further configured to cause the first wireless device to: transition from a doze state of a power saving mode to an awake state of the power saving mode to communicate with the second wireless device during the first time period associated with the first communication mode; transmit one or more of a power save poll frame or an unscheduled automatic power save delivery frame to notify the third wireless device that the first wireless device is in the awake state; and remain in the awake state after the first time period to receive downlink buffered units from the third wireless device.
14. 14. The first wireless device of claim 1, wherein the processing system is further configured to cause the first wireless device to: transition from a doze state of a power saving mode to an awake state of the power saving mode to communicate with the second wireless device during the first time period associated with the first communication mode; transmit one or more of a power save poll frame or an unscheduled automatic power save delivery frame after the first time period to notify the third wireless device that the first wireless device is in the awake state; and receive one or more downlink buffered units from the third wireless device in accordance with the second communication mode.
15. 15. A third wireless device, comprising: a processing system that includes processor circuitry and memory 7 circuitry that stores code, the processing system configured to cause the third wireless device to: receive first scheduling information associated with a first plurality of recurring time periods during which a first wireless device is capable of communicating with a second w ireless device in accordance with a first communication mode; transmit second scheduling information associated with a second plurality of recurring time periods during which the first wireless device is capable of communicating with the third wireless device in accordance with a second communication mode; and receive an indication of an availability schedule associated with the first wireless device in accordance with resolving an overlap between at least a first time period of the first plurality of recurring time periods and a second time period of the second plurality of recurring time periods.
16. 16. The third wireless device of claim 15, wherein the first time period of the first plurality of recurring time periods associated with the second communication mode is prioritized over the second time period of the second plurality of recurring time periods associated w ith the first communication mode in resolving the overlap.
17. 17. The third wireless device of claim 15, wherein the second time period of the second plurality of recurring time periods associated with the first communication mode is prioritized over the first time period of the first plurality of recurring time periods associated with the second communication mode in resolving the overlap.
18. 18. A method for wireless communication by a first wireless device, comprising: receiving first scheduling information associated with a first plurality of recurring time periods during which the first wireless device is capable of communicating with a second wireless device in accordance with a first communication mode; receiving second scheduling information associated with a second plurality of recurnng time periods during which the first wireless device is capable of communicating with a third wireless device in accordance with a second communication mode; and transmitting an indication of an availability schedule associated with the first wireless device in accordance with resolving an overlap between at least a first time period of the first plurality of recurring time periods and a second time period of the second plurality of recurring time periods.
19. 19. The method of claim 18, wherein the first time period of the first plurality of recurring time periods associated with the second communication mode is prioritized over the second time period of the second plurality of recurring time periods associated with the first communication mode in resolving the overlap.
20. 20. The method of claim 18, wherein the second time period of the second plurality of recurring time periods associated with the first communication mode is prioritized over the first time period of the first plurality of recurring time periods associated with the second communication mode in resolving the overlap.

Description

TARGET WAKE TIME (TWT) COORDINATION TECHNIQUES CROSS REFERENCES [0001] The present Application for Patent claims priority to U.S. Patent Application No. 18/346,708 by Ajami et al., entitled “TARGET WAKE TIME (TWT) COORDINATION TECHNIQUES,” filed July 3, 2023, which is assigned to the assignee hereof and which is expressly incorporated by reference herein. TECHNICAL FIELD [0002] This disclosure relates to wireless communication and, more specifically, to target wake time (TWT) coordination techniques. DESCRIPTION OF THE RELATED TECHNOLOGY [0003] A wireless local area network (WLAN) may be formed by one or more wireless access points (APs) that provide a shared wireless communication medium for use by multiple client devices also referred to as wireless stations (STAs). The basic building block of a WLAN conforming to the Institute of Electrical and Electronics Engineers (IEEE) 802. 11 family of standards is a Basic Service Set (BSS), which is managed by an AP. Each BSS is identified by a Basic Service Set Identifier (BSSID) that is advertised by the AP. An AP periodically broadcasts beacon frames to enable any STAs within wireless range of the AP to establish or maintain a communication link with the WLAN. [0004] In some WLANs, a STA may be configured with a target wake time (TWT) schedule that defines when the STA transitions from a power saving (PS) mode to an active mode. Different TWT schedules can be defined for different communication modes. SUMMARY [0005] The systems, methods, and devices of this disclosure each have several innovative aspects, no single one of which is solely responsible for the desirable attributes disclosed herein. [0006] One innovative aspect of the subject matter described in this disclosure can be implemented in a first wireless device. The first wireless device may include a processing system that includes processor circuitry and memory circuitry that stores code. The processing system may be configured to cause the first wireless device to receive first scheduling information associated with a first set of multiple recurring time periods during which the first wireless device is capable of communicating with a second wireless device in accordance with a first communication mode, receive second scheduling information associated with a second set of multiple recurring time periods during which the first wireless device is capable of communicating with a third wireless device in accordance with a second communication mode, and transmit an indication of an availability schedule associated with the first wireless device in accordance with resolving an overlap between at least a first time period of the first set of multiple recurring time periods and a second time period of the second set of multiple recurring time periods. [0007] Another innovative aspect of the subject matter described in this disclosure can be implemented in a method for wireless communication by a first wireless device. The method may’ include receiving first scheduling information associated with a first set of multiple recurring time periods during which the first wireless device is capable of communicating with a second wireless device in accordance with a first communication mode, receiving second scheduling information associated with a second set of multiple recurring time periods during which the first wireless device is capable of communicating with a third wireless device in accordance with a second communication mode, and transmitting an indication of an availability schedule associated with the first wireless device in accordance with resolving an overlap between at least a first time period of the first set of multiple recurring time periods and a second time penod of the second set of multiple recurring time periods. [0008] One innovative aspect of the subject matter described in this disclosure can be implemented in a third wireless device. The third wireless device may include a processing system that includes processor circuitry' and memory' circuitry that stores code. The processing system may be configured to cause the third wireless device to receive first scheduling information associated with a first set of multiple of recurring time periods during which a first wireless device is capable of communicating with a second wireless device in accordance with a first communication mode, transmit second scheduling information associated with a second set of multiple recurring time periods during which the first wireless device is capable of communicating with the third wireless device in accordance with a second communication mode, and receive an indication of an availability schedule associated with the first wireless device in accordance with resolving an overlap between at least a first time period of the first set of multiple recurring time periods and a second time period of the second set of multiple recurring time periods. [0009] Another innovative aspect of the subject matter described