Method and system for signaling release cause indication in a UMTS network
A method and system for processing signaling release indication cause between user equipment and a wireless network, the method comprising the steps of: monitoring, at the user equipment, whether a signaling connection release indication should be sent to the wireless network; appending, at the user equipment, a cause for the signaling connection release indication to the signaling connection release indication; sending the appended signaling connection release indication to the wireless network; receiving the signaling connection release indication at the wireless network; and filtering said cause to determine whether to raise an alarm.
1. A method for processing a signaling connection release indication message at a user equipment, the method comprising:
determining, at the user equipment, that no more data is expected;
setting, at the user equipment, a signaling connection release indication cause in the signaling connection release indication message if, at the user equipment, no more data is expected; and
sending the signaling connection release indication message with the signaling connection release indication cause to a wireless network, wherein the signaling connection release indication message is a request for a network-controlled state transition to an efficient battery Radio Resource Control (RRC) state or mode.
2. The method of claim 1 , wherein the cause is indicative of a request by the user equipment to end a packet switched (PS) data session.
3. The method of claim 1 , Wherein the cause is indicative of a request by the user equipment to transition to an idle mode.
4. The method of claim 1 , further comprising receiving at the user equipment a request to release or abort a signaling connection from an upper layer for a specific core network (CN) domain.
5. The method of claim 1 , Wherein the wireless network is a universal terrestrial radio access network (UTRAN).
6. The method of claim 1 , wherein the cause is an information element (IE) of the signaling connection release indication message.
7. The method of claim 1 , further comprising sending the signaling connection release indication message without a cause if a user equipment timer expires.
8. The method of claim 1 , wherein the cause is set to UE Requested PS Data session end.
9. The method of claim 1 , wherein sending the signaling connection release indication message comprises transmitting the signaling connection release indication message on DCCH using AM RLC.
10. The method of claim 1 , further comprising sending the signaling connection release indication message with the cause after a user equipment timer expires.
11. The method of claim 1 , further comprising at the user equipment receiving a network-controlled state transition message from the wireless network.
12. The method of claim 11 , further comprising at the user equipment transitioning from a first radio resource control (RRC) state to the battery efficient RRC state or mode.
13. The method of claim 12 , wherein the first RRC state is one of a Cell Dedicated CHannel (CELL_DCH) state, a Cell Forward Access CHannel (CELL_FACE) state, a Cell Paging CHannel (CELL_PCH) state and a UTRAN Registration Area Paging Manuel (URA_PCH) state.
14. The method of claim 12 , wherein the battery efficient RRC state or mode is one of a CELL_FACH state, a CELL_PHC state, a URA_PCH state and an idle mode.
15. The method of claim 11 , wherein the state transition message is a message to transition to the battery efficient RRC state or mode.
16. The method of claim 15 , wherein the battery efficient RRC state or mode is one of a CELL_FACH state, a CELL_PCH state, a URA — PCH state and an idle mode.
17. A method for processing a signaling connection release indication message at a wireless network, the method comprising:
receiving from a user equipment a signaling connection release indication message including a signaling connection release indication cause indicating that no more data is expected at the user equipment, wherein the signaling connection release indication message is a request for a network-controlled state transition to an efficient battery Radio Resource Control (RRC) state or mode and
causing initiation of the network-controlled state transition for a signaling connection based on the signaling connection release indication cause.
18. The method of claim 17 , wherein the receiving and the causing steps are implemented in a universal terrestrial radio access network (UTRAN).
19. The method of claim 17 , wherein the cause is indicative of a request by the user equipment to end a packet switched (PS) data session.
20. The method of claim 17 , wherein the cause is indicative of a request by the user equipment to transition to an idle mode.
21. The method of claim 17 , wherein the cause is an information element (IE) of the signaling connection release indication message.
22. The method of claim 17 , further comprising receiving a signaling connection release indication message without a cause if a user equipment timer expires.
23. The method of claim 17 , wherein the cause is set to UE Requested PS Data session end.
24. The method of claim 17 , wherein the battery efficient RRC state or mode is one of a Cell Forward Access CHannel (CELL_FACH) state, a Cell Paging CHannel (CELL_PCH) state, a UTRAN Registration Area Paging CHannel (URA_PCH) state and an idle mode.
25. A user equipment adapted for processing a signaling connection release indication message, the user equipment having a radio subsystem, a processor adapted to interact with a memory and the radio subsystem, the user equipment configured to:
determine that no more data is expected;
set a signaling connection release indication cause in the signaling connection release indication message if no more data is expected; and
send the signaling connection release indication message with the signaling connection release indication cause to a wireless network, wherein the signaling connection release indication message is a request for a network-controlled state transition to an efficient battery Radio Resource Control (RRC) state or mode.
26. The user equipment of claim 25 , wherein the cause is indicative of a request by the user equipment to end a packet switched (PS) data session.
27. The user equipment of claim 25 , wherein the cause is indicative of a request to transition to an idle mode.
28. The user equipment of claim 25 , wherein the cause is set to UE Requested PS Data session end.
29. The user equipment of claim 25 , wherein sending the signaling connection release indication message comprises transmitting the signaling connection release indication message on DCCH using AM RLC.
30. The user equipment of claim 25 , further configured to receive a request to release or abort a signaling connection from an upper layer for a specific core network (CN) domain.
31. The user equipment of claim 25 , wherein the wireless network is a universal terrestrial radio access network (UTRAN).
32. The user equipment of claim 25 , wherein the cause is an information element (IE) of the signaling connection release indication message.
33. The user equipment of claim 25 , further configured to send the signaling connection release indication message without a cause if a user equipment tinier expires.
34. The user equipment of claim 25 , further configured to send the signaling connection release indication message with the cause after a user equipment timer expires.
35. The user equipment of claim 25 , further configured to receive a network-controlled state transition message from the wireless network.
36. The user equipment of claim 25 , further configured to transition from a first radio resource control (RRC) state to the battery efficient RRC state or mode.
37. The user equipment of claim 36 , wherein the first RRC state is one of a Cell Dedicated CHannel (CELL_DCH) state, a Cell Forward Access CHannel (CELL_FACH) state, a Cell Paging CHannel (CELL_PCH) state and a UTRAN Registration Area Paging CHannel (URA_PCH) state.
38. The user equipment of claim 36 , wherein the battery efficient RRC state or mode is one of a CELL_FACH state, a CELL_PCH state, a URA_PCH state and an idle mode.
39. The user equipment of claim 35 , wherein the state transition message is a message to transition to the battery efficient RRC state or mode.
40. The user equipment of claim 39 , wherein the battery efficient RRC state or mode is one of a CELL_FACH state, a CELL_PCH state, a URA_PCH state and an idle mode.
41. A wireless network apparatus for processing a signaling connection release indication message, said network apparatus configured to:
receive from a user equipment a signaling connection release indication message including a signaling connection release indication cause indicating that no more data is expected at the user equipment, wherein the signaling connection release indication message is a request for a network-controlled state transition to an efficient battery Radio Resource Control (RRC) state or mode; and
initiate the network-controlled state transition for a signaling connection used on the signaling connection release indication cause.
42. The network apparatus of claim 41 , wherein the cause is indicative of a request by the user equipment to end a PS data session.
43. The network apparatus of claim 41 , wherein the cause is indicative of a request to transition to an idle mode.
44. The wireless network apparatus of claim 41 , wherein the wireless network apparatus are implemented in a. universal terrestrial radio access network (UTRAN).
45. The wireless network apparatus of claim 41 , wherein the cause is set to HE Requested PS Data session end.
46. The wireless network apparatus of claim 41 , wherein the cause is an information element (IE) of the signaling connection release indication message.
47. The wireless network apparatus of claim 41 , further configured to receive the signaling connection release indication message without a cause if a user equipment timer expires.
48. The wireless network apparatus of claim 41 , wherein the signaling connection release indication message is received with the cause after a user equipment timer expires.
49. The network apparatus of claim 41 , wherein the battery efficient RRC state or mode is one of a Cell Forward Access CHannel (CELL_FACH) state, a Cell Paging CHannel (CELL_PCH) state, a UTRAN Registration Area Paging CHannel (URA_PCH) state and an idle mode.