Awake window protection

Patent metadata

Field	Value
Publication number	US-9872251-B2
Application number	US-201615279901-A
Country	US
Kind code	B2
Filing date	Sep 29, 2016
Priority date	Apr 26, 2016
Publication date	Jan 16, 2018
Grant date	Jan 16, 2018

Abstract

This disclosure describes systems, methods, and devices related to awake window (AW) protection. A device may identify a beacon frame received from a first device. The device may identify an information element associated with a first awake window (AW) within the beacon frame. The device may suspend one or more first backoff timers for a duration of the first AW. The device may associate a second backoff timer with a management frame.

First claim

What is claimed is:

1. A device, comprising:
at least one memory that stores computer-executable instructions; and
at least one processor configured to access the at least one memory, wherein the at least one processor is configured to execute the computer-executable instructions to:
identify a beacon frame received from a first device;
identify an information element associated with a first awake window (AW) within the beacon frame;
suspend one or more first backoff timers for a duration of the first AW; and
associate a second backoff timer with a management frame.

2. The device of claim 1 , wherein the beacon frame is a directional multi-gigabit beacon frame.

3. The device of claim 1 , wherein the at least one processor is further configured to execute the computer-executable instructions to:
determine the device is associated with a basic service set (BSS) of the first device;
decrement the second backup timer within the first AW; and
cause to send the management frame based at least in part on the second backoff timer.

4. The device of claim 1 , wherein the at least one processor is further configured to execute the computer-executable instructions to:
determine the device is not associated with the BSS of the first device; and
suspend the second backoff timer for a duration of the first AW.

5. The device of claim 1 , wherein the at least one processor is further configured to execute the computer-executable instructions to reset the second backoff timer to zero when the first AW expires.

6. The device of claim 1 , wherein the management frame is an announcement traffic identification message (ATIM).

7. The device of claim 1 , wherein each of the one or more first backoff timers is associated with a quality of service (QOS).

8. The device of claim 1 , wherein the at least one processor is further configured to execute the computer-executable instructions to release the one or more first backoff timers at an end of the first AW.

9. The device of claim 1 , wherein the at least one processor is further configured to execute the computer-executable instructions to:
determine a residual time associated with the second backoff timer at an expiration of the first AW; and
set the second backoff timer to the residual time at a beginning of a second AW.

10. The device of claim 1 , further comprising a transceiver configured to transmit and receive wireless signals.

11. The device of claim 10 , further comprising one or more antennas coupled to the transceiver.

12. A non-transitory computer-readable medium storing computer-executable instructions which when executed by one or more processors result in performing operations comprising:
identifying a beacon frame received from a device;
identifying an information element associated with a first awake window (AW) within the beacon frame;
suspending one or more first backoff timers for a duration of the first AW; and
associating a second backoff timer with a management frame.

13. The non-transitory computer-readable medium of claim 12 , wherein the beacon frame is a directional multi-gigabit beacon frame.

14. The non-transitory computer-readable medium of claim 12 , wherein the operations further comprise:
determining a first basic service set (BSS);
determining a second BSS associated with the device;
determining the first BSS is the same as the second BSS;
decrementing the second backoff timer within the first AW; and
causing to send the management frame based at least in part on the second backoff timer.

15. The non-transitory computer-readable medium of claim 12 , wherein the operations further comprise releasing the one or more first backoff timers at an expiration of the first AW.

16. The non-transitory computer-readable medium of claim 12 , wherein the operations further comprise:
determining a first basic service set (BSS);
determining a second BSS associated with the device;
determining the first BSS is different from the second BSS; and
suspending the second backoff timer for the duration of the first AW.

17. The non-transitory computer-readable medium of claim 12 , wherein the operations further comprise resetting the second backoff timer to zero when the first AW expires.

18. A method comprising:
identifying, by one or more processors, a beacon frame received from a device;
identifying an information element associated with a first awake window (AW) within the beacon frame;
suspending one or more first backoff timers for a duration of the first AW; and
associating a second backoff timer with a management frame.

19. The method of claim 18 , wherein the beacon frame is a directional multi-gigabit beacon frame.

20. The method of claim 18 , further comprising releasing the one or more first backoff timers at an expiration of the first AW.

Assignees

• Trainin Solomon
• Cordeiro Carlos
• Intel Ip Corp

Inventors

• Trainin Solomon
• Cordeiro Carlos

Classifications

• H04W74/006

  in the downlink, i.e. towards the terminal · CPC title

• H04W52/0229 Primary

  where the received signal is a wanted signal · CPC title

• H04W52/0219

  where the power saving management affects multiple terminals · CPC title

• H04W74/0808

  using carrier sensing, e.g. carrier sense multiple access [CSMA] · CPC title

• H04W84/12

  WLAN [Wireless Local Area Networks] · CPC title