Method and apparatus for state/mode transitioning

• US 8,305,924 B2
• Filed: 09/26/2011
• Issued: 11/06/2012
• Est. Priority Date: 11/23/2009
• Status: Active Grant

• Current Assignee: Blackberry Limited
• Original Assignee: Research In Motion Limited (Blackberry Limited)
• Inventors: Dwyer, Johanna Lisa, Carpenter, Paul Marcus
• Primary Examiner(s): Pezzlo, John
• Application Number:
  US13/244,765
• Publication Number:
  US 20120051289A1
• Time in Patent Office: 407 Days
• Field of Search: 370/252, 370/230, 370/329
• US Class Current: 370/252
• CPC Class Codes: H04W 52/0206 in access points, e.g. base stations access point devices per se H04W88/08
• CPC Class Codes: H04W 52/0229 where the received signal is a wanted signal
• CPC Class Codes: H04W 72/04 Wireless resource allocation
• CPC Class Codes: H04W 76/27 Transitions between radio resource control [RRC] states
• CPC Class Codes: H04W 76/28 Discontinuous transmission [DTX]; Discontinuous reception [DRX]
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

A user equipment implements a method of processing indication messages, such as SCRI (signaling connection release indication) messages. For at least one RRC (radio resource control) state, if the current RRC state of the UE is a result of a previously sent indication, the UE inhibits itself from sending a further indication message.

Claims

1. A method comprising:

maintaining, by a user equipment (UE), a count of how many signaling connection release indication (SCRI) messages sent by the UE to a network;

entering RRC Connected mode; and

resetting the count responsive to entering RRC Connected mode.

2. The method of claim 1, wherein the SCRI messages sent by the UE each have a cause set.

3. The method of claim 2, wherein the cause is set to UE Requested PS Data session end.

4. The method of claim 1, wherein the SCRI messages are sent by the UE while in at least one radio resource control (RRC) state.

5. The method of claim 4, wherein the at least one RRC state comprises a CELL_PCH state or a URA_PCH state.

6. The method of claim 1, wherein maintaining a count comprises using a counter.

7. The method of claim 1, wherein said maintaining includes incrementing the count.

8. A method comprising:

maintaining, by a user equipment (UE), a count of signaling connection release indication (SCRI) messages sent by the UE while in at least one radio resource control (RRC) state to a network, the SCRI messages having a cause set to UE Requested PS Data session end;

entering RRC Connected mode; and

resetting the count responsive to entering RRC Connected mode.

9. The method of claim 8, wherein the at least one RRC state comprises one of a CELL_PCH state or a URA_PCH state.

10. The method of claim 9, wherein maintaining a count comprises using a counter.

11. The method of claim 10, wherein said maintaining includes incrementing the count.

12. A user equipment (UE) comprising a processor, configured to:

maintain a count of signaling connection release indication (SCRI) messages sent by the UE to a network;

enter RRC Connected mode; and

reset the count responsive to entering RRC Connected mode.

13. The UE of claim 12, wherein the SCRI messages sent by the UE each have a cause set.

14. The UE of claim 13, wherein the cause is set to UE Requested PS Data session end.

15. The UE of claim 13, wherein the SCRI messages are sent by the UE while in at least one radio resource control (RRC) state.

16. The UE of claim 15, wherein the at least one RRC state comprises a CELL_PCH state or a URA_PCH state.

17. The UE of claim 13, wherein maintaining a count comprises using a counter.

18. The UE of claim 13, wherein said maintaining includes incrementing the count.

19. A user equipment (UE) comprising at least one memory and a processor, configured to:

maintain a count of signaling connection release indication (SCRI) messages sent by the UE while in at least one radio resource control (RRC) state to a network, the SCRI messages having a cause set to UE Requested PS Data session end;

enter RRC Connected mode; and

reset the count responsive to entering RRC Connected mode.

20. The UE of claim 19, wherein the at least one RRC state comprises one of a CELL_PCH state or a URA_PCH state.

21. The UE of claim 20, wherein maintaining a count comprises using a counter.

22. The UE of claim 21, wherein said maintaining includes incrementing the count.