System and method to manage processing operations within a wireless terminal following receipt of a null page

• US 7,630,701 B2
• Filed: 10/18/2004
• Issued: 12/08/2009
• Est. Priority Date: 10/18/2004
• Status: Active Grant

• Current Assignee: Avago Technologies International Sales Pte Limited (Broadcom, Inc.)
• Original Assignee: Broadcom Corporation (Broadcom, Inc.)
• Inventors: Sollenberger, Nelson R., Patel, Ronish, Gong, Zhijun (Nick), Kasiske, Kenneth L., Paulsen, Karl
• Primary Examiner(s): Urban; Edward
• Assistant Examiner(s): Chen; Junpeng
• Application Number:
  US10/967,603
• Publication Number:
  US 20060085552A1
• Time in Patent Office: 1,877 Days
• Field of Search: 455/127.5, 4553431-3434, 455/458, 455/574, 455/522, 455/67.11, 455/68, 455436-444, 455/422.1, 455423-425, 4554561-4566, 340 732- 738, 375/335, 330/311, 330/318
• US Class Current: 455/343.3
• 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: H04W 72/12 Wireless traffic scheduling
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

A method and system to determine when a wireless terminal has been paged by a servicing base station. An encoded paging burst is received on a paging channel and then decoded to produce a decoded paging burst. The decoded paging burst is processed to determine if it is a null page. When the encoded paging burst is a null page, subsequent processing operations scheduled to follow a later null page are rescheduled and immediately processed, allowing the wireless terminal to re-enter the sleep mode more quickly following the receipt of a subsequent paging burst.

Claims

1. A method to manage processing operations following a wireless terminal receiving a null page from a servicing base station, the method comprises:

receiving an encoded paging burst on a paging channel;

decoding the encoded paging burst to produce a decoded paging burst;

determining that the decoded paging burst contains a null page for the wireless terminal;

consolidating a plurality of staggered processing operations associated with receiving a plurality of subsequent encoded paging bursts when the decoded paging burst contains the null page for the wireless terminal;

performing the consolidated plurality of staggered processing operations as a group following the null page; and

after the consolidated plurality of staggered processing operations is performed during an awake period, entering a sleep mode for a sleep mode period that is adjacent to and follows the awake period; and

after receipt of one of the plurality of subsequent encoded paging bursts during a subsequent awake period, entering a subsequent sleep mode period that is adjacent to and follows the subsequent awake period, wherein a length of the subsequent sleep mode period is longer than a length of the sleep mode period and a length of the subsequent awake period is shorter than a length of the awake period.

2. The method of claim 1, wherein the processing operations associated with receiving at least one subsequent encoded paging burst comprise gathering and evaluating neighbor cell measurements.

3. The method of claim 2, wherein consolidating the plurality of staggered processing operations comprises moving forward the processing operations that are currently scheduled to follow the subsequent encoding paging burst.

4. The method of claim 3, wherein the processing operations are associated with gathering and evaluating neighbor cell measurements.

5. The method of claim 4, wherein moving forward the processing operations that are currently scheduled to follow the at least one subsequent encoding paging burst allows the length of the subsequent awake period to be reduced.

6. The method of claim 3, wherein gathering and evaluating the neighbor cell measurement are originally scheduled in a staggered fashion to follow multiple subsequent pages, and wherein consolidation allows the neighbor cell measurements to be processed immediately following receipt of a single null page.

7. The method of claim 6, wherein the encoded paging burst comprises an extended page.

8. The method of claim 1, wherein the sleep mode period ranges between about 0.5 second to about 2.0 seconds.

9. The method of claim 1, wherein the wireless terminal awakens from the sleep mode at the expiration of the sleep mode period to receive the one of the plurality of subsequent encoded paging bursts.

10. The method of claim 1, wherein the wireless terminal operates according to the GSM standard.

11. A wireless terminal that comprises:

a Radio Frequency (RF) front end;

a baseband processor communicatively coupled to the RF front end;

an enCOder/DECoder (CODEC) processing module communicatively coupled to the baseband processor;

wherein during a first time period, the RF front end, the baseband processor, and the CODEC processing module are operable to;

receive an encoded paging burst on a paging channel;

decode the encoded paging burst to produce a decoded paging burst;

determine that the decoded paging burst contains a null page for the wireless terminal;

consolidate a plurality of staggered processing operations associated with receiving a plurality of subsequent encoded paging bursts when the decoded paging burst contains a null page for the wireless terminal;

perform the consolidated plurality of staggered processing operations as a group following the null page; and

after the consolidated plurality of staggered processing operations is performed during an awake period, enter a sleep mode for a sleep mode period that is adjacent to and follows the awake period; and

after receipt of one of the plurality of subsequent encoded paging bursts during a subsequent awake period, enter a subsequent sleep mode period that is adjacent to and follows the subsequent awake period, wherein a length of the subsequent sleep mode period is longer than a length of the sleep mode period and a length of the subsequent awake period is shorter than a length of the awake period.

12. The wireless terminal of claim 11, wherein processing operations further comprise gathering and evaluating neighbor cell measurements.

13. The wireless terminal of claim 11, wherein consolidate the plurality of staggered processing operations comprises moving forward the processing operations that are currently scheduled to follow at least one subsequent encoding paging burst.

14. The wireless terminal of claim 13, wherein moving forward the processing operations that are currently scheduled to follow the subsequent encoding paging burst allows the length of the subsequent awake period to be reduced.

15. The wireless terminal of claim 14, wherein the processing operations are associated with gathering and evaluating neighbor cell measurements.

16. The wireless terminal of claim 13, wherein the neighbor cell measurement are scheduled in a staggered fashion to follow multiple subsequent pages, and wherein consolidation allows the neighbor cell measurements to follow receipt of a single null page.

17. The wireless terminal of claim 16, wherein the RF front end, the baseband processor, and the CODEC processing module are operable to enter the sleep mode, and wherein the sleep mode period ranges between about 0.5 second to about 2.0 seconds.

18. The wireless terminal of claim 13, wherein the wireless terminal awakens from the sleep mode at the expiration of the sleep mode period to receive the one of the plurality of subsequent encoded paging bursts.

19. The wireless terminal of claim 13, wherein the wireless terminal operates according to the GSM standard.

20. A wireless terminal that comprises:

a Radio Frequency (RF) front end;

a baseband processor communicatively coupled to the RF front end;

an enCOder/DECoder (CODEC) processing module communicatively coupled to the baseband processor;

wherein during a first time period, the RF front end, the baseband processor, and the CODEC processing module are operable to;

receive an encoded paging burst on a paging channel;

decode the encoded paging burst to produce a decoded paging burst;

determine that the decoded paging burst contains a null page for the wireless terminal;

consolidate a plurality of staggered neighbor cell measurements currently scheduled to follow a plurality of subsequent encoded paging bursts, to immediately follow the decoded paging burst that contains the null page for the wireless terminal;

perform the consolidated plurality of staggered neighbor cell measurements as a group following the null page;

after the consolidated plurality of staggered neighbor cell measurements is performed during an awake period, enter a sleep mode for a sleep mode period that is adjacent to and follows the awake period; and

after receipt of one of the plurality of subsequent encoded paging bursts during a subsequent awake period, enter a subsequent sleep mode period, wherein a length of the subsequent sleep mode period is longer than a length of the sleep mode period and a length of the subsequent awake period is shorter than a length of the awake period.

21. The wireless terminal of claim 20, wherein moving forward the processing operations that are currently scheduled to follow the subsequent encoding paging burst allows the length of the subsequent awake period to be reduced.

22. The wireless terminal of claim 20, wherein the encoded paging burst comprises an extended page received in multiple parts separated by at least one frame.

23. The wireless terminal of claim 22, wherein determining the extended page to be the null page prior to an expiration of an extended paging period.

24. The wireless terminal of claim 20, wherein neighbor cell measurements allow the determination of when to change which base station services the wireless terminal.

25. The wireless terminal of claim 20, wherein the RF front end, the baseband processor, and the CODEC processing module are operable to enter the sleep mode, and wherein the sleep mode period ranges between about 0.5 second to about 2.0 seconds.

26. The wireless terminal of claim 20, wherein the wireless terminal awakens from the sleep mode at the expiration of the sleep mode period to receive the one of the plurality of subsequent encoded paging bursts.

27. The wireless terminal of claim 20, wherein the wireless terminal operates according to the GSM standard.