Methods and apparatus for low power wake up signal and operations for WLAN

1. An apparatus for wireless communications, comprising:

a processor configured to:

generate a message comprising a target wake up time information element indicating a first time for a wireless communication device to wake up and instructions to execute an action in response to receiving a paging frame from the apparatus, the first time for the wireless communication device to wake up indicating at least a second time at which the paging frame is transmitted; and

generate the paging frame; and

a transmitter configured to:

transmit the message to the wireless communication device; and

subsequently transmit the paging frame to the wireless communication device based on the indicated second time.

2. The apparatus of claim 1 , wherein the paging frame includes an address of the paging frame.

3. The apparatus of claim 1 , wherein the paging frame comprises a direction field having a value indicating whether the apparatus is an access point.

4. The apparatus of claim 1 , wherein the paging frame is selectably configurable to store timing information.

5. The apparatus of claim 1 , wherein the paging frame comprises a null data packet.

6. The apparatus of claim 1 , wherein the action includes one or more of:

sending a power save poll frame,

waiting for packet reception,

receiving a beacon, and

receiving a delivery traffic indication message beacon.

7. The apparatus of claim 1 , wherein the message indicates a time period including the indicated second time during which the wireless communication device is to be awake, and the paging frame is the first frame the apparatus is configured to transmit to the wireless communication device during the indicated time period.

8. The apparatus of claim 1 , wherein the message indicates a time period including the indicated second time during which the wireless communication device is to be awake, and the apparatus is further configured to refrain from transmitting any frame other than the paging frame to the wireless communication device during the indicated time period.

9. The apparatus of claim 1 , wherein the transmitter is further configured to transmit the message at a third time that is different from the first time for the wireless communication device to wake up.

10. A method for wireless communications, comprising:

generating a message comprising a target wake up time information element indicating a first time for a wireless communication device to wake up and instructions to execute an action in response to receiving a paging frame from the apparatus, the first time for the wireless communication device to wake up indicating at least a second time at which the paging frame is transmitted;

transmitting the message, from an apparatus, to the wireless communication device;

generating the paging frame; and

subsequently transmitting the paging frame to the wireless communication device based on the indicated second time.

11. The method of claim 10 , wherein the paging frame includes an address of the paging frame.

12. The method of claim 10 , wherein the paging frame comprises a direction field having a value indicating whether the apparatus is an access point.

13. The method of claim 10 , wherein the paging frame is selectably configurable to store timing information.

14. The method of claim 10 , wherein the paging frame comprises a null data packet.

15. The method of claim 10 , wherein the action includes one or more of:

sending a power save poll frame,

waiting for packet reception,

receiving a beacon, and

receiving a delivery traffic indication message beacon.

16. The method of claim 10 , wherein the message indicates a time period including the indicated second time during which the wireless communication device is to be awake, and the paging frame is the first frame transmitted to the wireless communication device during the indicated time period.

17. The method of claim 10 , wherein the message indicates a time period including the indicated second time during which the wireless communication device is to be awake, the paging frame being the only frame transmitted from the apparatus to the wireless communication device during the indicated time period.

18. The method of claim 10 , further comprising transmitting the message at a third time that is different from the first time for the wireless communication device to wake up.

19. An apparatus for wireless communications, comprising:

means for generating configured to:

generate a message comprising a target wake up time information element indicating a first time for a wireless communication device to wake up and instructions to execute an action in response to receiving a paging frame from the apparatus, the first time for the wireless communication device to wake up indicating at least a second time at which the paging frame is transmitted; and

generate the paging frame; and

means for transmitting configured to:

transmit the message to the wireless communication device; and

subsequently transmit the paging frame to the wireless communication device based on the indicated second time.

20. The apparatus of claim 19 , wherein the paging frame includes an address of the paging frame.

21. The apparatus of claim 19 , wherein the paging frame comprises a direction field having a value indicating whether the apparatus is an access point.

22. The apparatus of claim 19 , wherein the paging frame is selectably configurable to store timing information.

23. The apparatus of claim 19 , wherein the paging frame comprises a null data packet.

24. The apparatus of claim 19 , wherein the action includes one or more of:

sending a power save poll frame,

waiting for packet reception,

receiving a beacon, and

receiving a delivery traffic indication message beacon.

25. The apparatus of claim 19 , wherein the message indicates a time period including the indicated second time during which the wireless communication device is to be awake, and the paging frame is the first frame the means for transmitting is configured to transmit to the wireless communication device during the indicated time period.

26. The apparatus of claim 19 , wherein the message indicates a time period including the indicated second time during which the wireless communication device is to be awake, and the means for transmitting is further configured to refrain from transmitting any frame other than the paging frame to the wireless communication device during the indicated time period.

27. The apparatus of claim 19 , wherein the means for transmitting is further configured to transmit the message at a third time that is different from the first time for the wireless communication device to wake up.

28. A system for wireless communications, comprising:

a first apparatus for wireless communications, comprising:

a first processor configured to:

generate a message comprising a target wake up time information element indicating a first time for a second apparatus for wireless communications to wake up and instructions to execute an action in response to receiving a paging frame from the apparatus, the first time for the second apparatus for wireless communications to wake up indicating at least a second time at which the paging frame is transmitted; and

generate the paging frame; and

a transmitter configured to:

transmit the message to the second apparatus for wireless communications; and

subsequently transmit the paging frame to the second apparatus for wireless communications based on the indicated second time; and

a second apparatus for wireless communications, comprising:

a receiver configured to:

wirelessly receive the message from the first apparatus for wireless communications; and

subsequently receive the paging frame from the first apparatus for wireless communications; and

a second processor configured to execute the action in response to receiving the paging frame.

29. The system of claim 28 , wherein the paging frame includes an address of the paging frame, and wherein receiving the paging frame comprises comparing the address of the paging frame with an address of the second apparatus for wireless communications.

30. The system of claim 28 , wherein the paging frame comprises a direction field having a value indicating whether the first apparatus for wireless communications is an access point.

31. The system of claim 28 , wherein the paging frame is selectably configurable to store timing information.

32. The system of claim 28 , wherein the paging frame comprises a null data packet.

33. The system of claim 28 , wherein the action includes one or more of:

sending a power save poll frame,

waiting for packet reception,

receiving a beacon, and

receiving a delivery traffic indication message beacon.

34. The system of claim 28 , wherein the message indicates a time period including the indicated second time during which the second apparatus for wireless communications is to be awake, and the paging frame is the first frame the first apparatus for wireless communications is configured to transmit to the second apparatus for wireless communications during the indicated time period.

35. The system of claim 28 , wherein the message indicates a time period including the indicated second time during which the second apparatus for wireless communications is to be awake, and the first apparatus for wireless communications is further configured to refrain from transmitting any frame other than the paging frame to the second apparatus for wireless communications during the indicated time period.

36. The system of claim 28 , wherein the second apparatus for wireless communications is further configured to, after receiving the paging frame, go to sleep and wake up later to perform the action.

37. The system of claim 28 , wherein the transmitter is further configured to transmit the message at a third time that is different from the first time for the second apparatus for wireless communications to wake up.