Reduced paging cycles in a wireless communication system

• US 7,764,969 B2
• Filed: 02/13/2006
• Issued: 07/27/2010
• Est. Priority Date: 02/13/2006
• Status: Expired due to Fees

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Ananthanarayanan, Arulmozhi Kasi, Gill, Harleen K.
• Primary Examiner(s): Kincaid; Lester
• Assistant Examiner(s): SHEDRICK, CHARLES TERRELL
• Application Number:
  US11/353,511
• Publication Number:
  US 20070190963A1
• Time in Patent Office: 1,625 Days
• Field of Search: 455/458
• US Class Current: 455/458
• CPC Class Codes: H04W 52/0216 using a pre-established activity schedule, e.g. traffic indication frame
• CPC Class Codes: H04W 68/00 User notification, e.g. alerting and paging, for incoming communication, change of service or the like
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

Systems and methods for reducing paging cycles in a wireless communication system are disclosed. An extended suspend time can be set in a close connection message. A low power state can be initiated on a wireless device. Then, the wireless device can periodically wake from the low power state to check for a page directed to the wireless device.

Claims

1. A method comprising:

setting an extended suspend time in a close connection message, the extended suspend time indicating a time period before initiation of a low power state;

initiating the low power state on a wireless device before the extended suspend time lapses; and

periodically waking during the extended suspend time from the low power state to check for a page directed to the wireless device.

2. The method of claim 1, wherein periodically waking occurs every control channel cycle.

3. The method of claim 2, wherein the control channel cycle is a 426.66 ms cycle.

4. The method of claim 1, wherein the suspend time is greater than a default session timeout value.

5. The method of claim 1, wherein the suspend time is one or more hours.

6. The method of claim 1, further comprising:

negotiating a standard sleep paging cycle with a radio access network (RAN);

opening a traffic channel; and

closing the traffic channel prior to performing the steps of;

setting an extended suspend time in a close connection message;

initiating the low power state on a wireless device before the extended suspend time lapses; and

periodically waking during the extended suspend time from the low power state to check for a page directed to the wireless device.

7. The method of claim 6, wherein closing the traffic channel is performed immediately after the traffic channel is opened.

8. The method of claim 1, further comprising:

determining if the suspend time has lapsed.

9. The method of claim 8, further comprising:

opening a traffic channel, upon the suspend time lapsing; and

closing the traffic channel and repeating the steps of;

setting an extended suspend time in a close connection message;

initiating the low power state on a wireless device before the extended suspend time lapses; and

periodically waking during the extended suspend time from the low power state to check for a page directed to the wireless device.

10. The method of claim 8, wherein the suspend time is determined to have lapsed if a current time is within a threshold of the suspend time.

11. The method of claim 10, wherein the threshold is at least one control channel cycle.

12. The method of claim 1, further comprising:

detecting an external connection close.

13. The method of claim 12, further comprising:

opening a traffic channel, upon the external connection close; and

closing the traffic channel and repeating the steps of;

setting an extended suspend time in a close connection message;

initiating the low power state on a wireless device before the extended suspend time lapses; and

periodically waking during the extended suspend time from the low power state to check for a page directed to the wireless device.

14. The method of claim 12, wherein the external connection close comprises at least one of receiving a connection close message from an access network, and receiving a close connection error message.

15. The method of claim 1, wherein the wireless device is compatible with 1xEV-DO release 0 and is at least one of a wireless computing device, a wireless telephone, a handset, a mobile terminal, a cellular telephone, a personal digital assistant (PDA), and a two-way paging device.

41. The method of claim 1, wherein the low power state is initiated before initiation is expected by a radio access network (RAN) in communication with the wireless device based on the extended suspend time.

42. The method of claim 1, wherein the close connection message alerts a radio access network (RAN) in communication with the wireless device that the wireless device will subsequently operate in a suspended mode during the extended suspend time before transitioning to the low power state, the low power state instead being initiated before the extended suspend time lapses.

16. An access terminal comprising:

a transceiver configured to communicate with a radio access network (RAN) over an air interface;

logic configured to include an extended suspend time in a close connection message, the extended suspend time indicating a time period before initiation of a low power state;

logic configured to initiate the low power state before the extended suspend time lapses; and

logic configured to periodically wake from the low power state during the extended suspend time to check for a page directed to the wireless device.

17. The access terminal of claim 16, wherein the access terminal is compatible with 1xEV-DO release 0 and is at least one of a wireless computing device, a wireless telephone, a handset, a mobile terminal, a cellular telephone, a personal digital assistant (PDA), and a two-way paging device.

18. The access terminal of claim 16, further comprising:

logic configured to negotiate a standard sleep paging cycle with the RAN;

logic configured to open a traffic channel; and

logic configured to close the traffic channel, wherein the logic configured to include an extended suspend time is accessed when closing the traffic channel.

19. The access terminal of claim 16, further comprising:

logic configured to determine if the suspend time has lapsed.

20. The access terminal of claim 19, further comprising:

logic configured to open a traffic channel, upon the suspend time lapsing; and

logic configured to close the traffic channel and activate the;

logic configured to include an extended suspend time in a close connection message;

logic configured to initiate the low power state before the extended suspend time lapses; and

logic configured to periodically wake from the low power state during the extended suspend time to check for a page directed to the access terminal.

21. The access terminal of claim 19, wherein the suspend time is determined to have lapsed if a current time is within a threshold of the suspend time.

22. The access terminal of claim 21, wherein the threshold is at least one control channel cycle.

23. The access terminal of claim 16, further comprising:

logic configured to detect an external connection close.

24. The access terminal of claim 23, further comprising:

logic configured to open a traffic channel, upon the external connection close; and

logic configured to close the traffic channel and activate the;

logic configured to include an extended suspend time in a close connection message;

logic configured to initiate the low power state before the extended suspend time lapses; and

logic configured to periodically wake from the low power state during the extended suspend time to check for a page directed to the wireless device.

25. The access terminal of claim 23, wherein the external connection close comprises at least one of receiving a connection close message from an access network, and receiving a close connection error message.

26. A mobile terminal comprising:

means for setting an extended suspend time in a close connection message, the extended suspend time indicating a time period before initiation of a low power state;

means for initiating the low power state on a wireless device before the extended suspend time lapses; and

means for periodically waking during the extended suspend time from the low power state to check for a page directed to the wireless device.

27. The mobile terminal of claim 26, wherein periodically waking occurs every control channel cycle.

28. The mobile terminal of claim 27, wherein the control channel cycle is a 426.66 ms cycle.

29. The mobile terminal of claim 26, wherein the suspend time is greater than a default session timeout value.

30. The mobile terminal of claim 26, further comprising:

means for negotiating a standard sleep paging cycle with a radio access network (RAN);

means for opening a traffic channel; and

means for closing the traffic channel prior to accessing;

means for setting an extended suspend time in a close connection message;

means for initiating the low power state on the mobile terminal before the extended suspend time lapses; and

means for periodically waking during the extended suspend time from the low power state to check for a page directed to the mobile terminal.

31. The mobile terminal of claim 30, wherein closing the traffic channel is performed immediately after the traffic channel is opened.

32. The mobile terminal of claim 26, further comprising:

means for determining the suspend time has lapsed.

33. The mobile terminal of claim 32, further comprising:

means for opening a traffic channel, upon the suspend time lapsing; and

means for closing the traffic channel and repeating access of the;

means for setting an extended suspend time in a close connection message;

means for initiating the low power state on the mobile terminal before the extended suspend time lapses; and

means for periodically waking during the extended suspend time from the low power state to check for a page directed to the mobile terminal.

34. The mobile terminal of claim 26, further comprising:

means for detecting an external connection close.

35. The mobile terminal of claim 34, further comprising:

means for opening a traffic channel, upon the external connection close; and

means for closing the traffic channel and repeating access of the;

means for setting an extended suspend time in a close connection message;

means for initiating the low power state on the mobile terminal before the extended suspend time lapses; and

means for periodically waking during the extended suspend time from the low power state to check for a page directed to the mobile terminal.

36. The mobile terminal of claim 34, wherein the external connection close comprises at least one of receiving a connection close message from an access network, and receiving a close connection error message.

37. The mobile terminal of claim 26, wherein the mobile terminal is compatible with 1xEV-DO release 0 and is at least one of a wireless computing device, a wireless telephone, a handset, a cellular telephone, a personal digital assistant (PDA), and a two-way paging device.

38. A computer readable media embodying a method to reduce paging cycles in an access, the method comprising:

setting an extended suspend time in a close connection message, the extended suspend time indicating a time period before initiation of a low power state;

initiating the low power state on an access terminal before the extended suspend time lapses; and

periodically waking during the extended suspend time from the low power state to check for a page directed to the access terminal.

39. The computer readable media of claim 38 embodying a method to reduce paging cycles, the method further comprising:

negotiating a standard sleep paging cycle with a radio access network (RAN);

opening a traffic channel; and

closing the traffic channel prior to accessing the method of;

setting an extended suspend time in a close connection message;

initiating the low power state on an access terminal before the extended suspend time lapses; and

periodically waking during the extended suspend time from the low power state to check for a page directed to the access terminal.

40. The computer readable media of claim 38 embodying a method to reduce paging cycles, the method further comprising:

detecting an external connection close;

opening a traffic channel, upon the external connection close; and

closing the traffic channel and repeating the method of;

setting an extended suspend time in a close connection message;

initiating the low power state on an access terminal before the extended suspend time lapses; and

periodically waking during the extended suspend time from the low power state to check for a page directed to the access terminal.