CONTROLLING TRANSMISSION OF PROTOCOL DATA UNITS

• US 20140098725A1
• Filed: 04/05/2013
• Published: 04/10/2014
• Est. Priority Date: 10/10/2012
• Status: Abandoned Application

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Yucek, Tevfik, Jones, Vincent Knowles IV, Merlin, Simone
• Application Number:
  US13/857,852
• Publication Number:
  US 20140098725A1
• Time in Patent Office: Days
• US Class Current: 370/311
• CPC Class Codes: H04W 52/0216 using a pre-established activity schedule, e.g. traffic indication frame
• CPC Class Codes: H04W 52/0229 where the received signal is a wanted signal
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

A method and system are disclosed that allow for the control of transmission characteristics associated with an exchange of protocol data units (PDUs) between a first wireless device and a second wireless device. The first wireless device determines a recovery time period and transmits the recovery time period to the second wireless device. The second wireless device may determine a time when the first wireless device enters the sleep state, wait for the recovery time period after the determined time, and then transmit a number of PDUs to the first wireless device after an expiration of the recovery time period.

Claims

1. A method for controlling transmission characteristics associated with an exchange of protocol data units (PDUs) between a first wireless device and a second wireless device, the method comprising:

receiving, in the second wireless device, a number of transmission conditions associated with the first wireless device, wherein the transmission conditions include a recovery time period associated with the first wireless device transitioning from a sleep state to an awake state;

determining a time when the first wireless device enters the sleep state;

waiting for the recovery time period after the determined time; and

transmitting a number of PDUs from the second wireless device to the first wireless device only after an expiration of the recovery time period.

2. The method of claim 1, wherein the transmission conditions are embedded within a capabilities element of a frame transmitted from the first wireless device to the second wireless device.

3. The method of claim 1, further comprising:

storing the transmission conditions in a look-up table provided within the second wireless device.

4. The method of claim 1, further comprising:

soliciting a data transmission from the first wireless device only after the expiration of the recovery time period.

5. The method of claim 1, wherein the determining comprises:

receiving an acknowledgement frame from the first wireless device acknowledging reception of downlink data transmitted from the second wireless device.

6. The method of claim 1, wherein the time corresponds to a most recent transmission of a beacon frame from the second wireless device to the first wireless device.

7. The method of claim 1, wherein the time corresponds to a most recent transmission of broadcast data from the second wireless device to the first wireless device.

8. The method of claim 1, wherein the time corresponds to an end of a slot in a restricted access window of the first wireless device.

9. The method of claim 1, wherein the first wireless device comprises a mobile station, and the second wireless device comprises an access point.

10. The method of claim 1, wherein the first wireless device comprises a first mobile station, and the second wireless device comprises a second mobile station.

11. A wireless device for controlling transmission characteristics associated with a wireless exchange of protocol data units (PDUs) with another device, wherein the wireless device comprises:

a transceiver to facilitate the exchange of PDUs; and

a processor to;

receive a recovery time period associated with the other device transitioning from a sleep state to an awake state;

determine a time when the other device enters the sleep state;

wait for the recovery time period after the determined time; and

transmit a number of PDUs to the other device only after an expiration of the recovery time period.

12. The wireless device of claim 11, wherein the recovery time period is embedded within a capabilities element of a frame transmitted from the other device.

13. The wireless device of claim 11, wherein the processor is to further:

store the transmission conditions in a look-up table provided within the wireless device.

14. The wireless device of claim 11, wherein the processor is to further:

solicit a data transmission from the other device only after the expiration of the recovery time period.

15. The wireless device of claim 11, wherein the processor is to determine the time by:

receiving an acknowledgement frame from the other device acknowledging reception of downlink data transmitted from the wireless device.

16. The wireless device of claim 11, wherein the time corresponds to a most recent transmission of a beacon frame from the wireless device.

17. The wireless device of claim 11, wherein the time corresponds to a most recent transmission of broadcast data from the wireless device.

18. The wireless device of claim 11, wherein the time corresponds to an end of a slot in a restricted access window of the other device.

19. The wireless device of claim 11, wherein the other device comprises a mobile station, and the wireless device comprises an access point.

20. The wireless device of claim 11, wherein the other device comprises a first mobile station, and the wireless device comprises a second mobile station.

21. A computer-readable storage medium containing program instructions that, when executed by a processor of a wireless device, cause the wireless device to:

receive a number of transmission conditions associated with another device, wherein the transmission conditions include a recovery time period associated with the other device transitioning from a sleep state to an awake state;

determine a time when the other device enters the sleep state;

wait for the recovery time period after the determined time; and

transmit a number of PDUs to the other device only after an expiration of the recovery time period.

22. The computer-readable storage medium of claim 21, wherein the transmission conditions are embedded within a capabilities element of a frame transmitted from the other device.

23. The computer-readable storage medium of claim 21, wherein execution of the program instructions further causes the wireless device to:

store the transmission conditions in a look-up table provided within the wireless device.

24. The computer-readable storage medium of claim 21, wherein execution of the program instructions further causes the wireless device to:

solicit a data transmission from the other device only after the expiration of the recovery time period.

25. The computer-readable storage medium of claim 21, wherein the time corresponds to receiving an acknowledgement frame from the other device acknowledging reception of downlink data transmitted from the wireless device.

26. The computer-readable storage medium of claim 21, wherein the time corresponds to a most recent transmission of a beacon frame from the wireless device.

27. The computer-readable storage medium of claim 21, wherein the time corresponds to a most recent transmission of broadcast data from the wireless device.

28. The computer-readable storage medium of claim 21, wherein the time corresponds to an end of a slot in a restricted access window of the other device.

29. The computer-readable storage medium of claim 21, wherein the other device comprises a mobile station, and the wireless device comprises an access point.

30. The computer-readable storage medium of claim 21, wherein the other device comprises a first mobile station, and the wireless device comprises a second mobile station.

31. A wireless device for controlling transmission characteristics associated with a wireless exchange of protocol data units (PDUs) with another device, wherein the wireless device comprises:

means for receiving a recovery time period associated with the other device transitioning from a sleep state to an awake state;

means for determining a time when the other device enters the sleep state;

means for waiting for the recovery time period after the determined time; and

means for transmitting a number of PDUs from the wireless device to the other device only after an expiration of the recovery time period.

32. The wireless device of claim 31, wherein the recovery time period is embedded within a capabilities element of a frame transmitted from the other device to the wireless device.

33. The wireless device of claim 31, further comprising:

means for soliciting a data transmission from the other device only after the expiration of the recovery time period.

34. The wireless device of claim 31, wherein the time corresponds to a most recent transmission of a beacon frame from the wireless device.

35. The wireless device of claim 31, wherein the time corresponds to a most recent transmission of broadcast data from the wireless device.

36. The wireless device of claim 31, wherein the time corresponds to an end of a slot in a restricted access window of the other device.