Method and apparatus for supporting machine-type communications with a mobile originated-only mode
A method and apparatus for supporting machine-type communications (MTC) are disclosed. A wireless transmit/receive unit (WTRU) may configure itself to operate in a mobile-originated-only mode. The WTRU may perform no, or a subset of, radio resource control (RRC) idle and/or non-access stratum (NAS) idle/standby state procedures in the mobile-originated-only mode. For example, the WTRU may perform cell reselection but not paging monitoring in the mobile-originated-only mode. Alternatively, the WTRU may perform paging monitoring but not cell reselection and location update. The operation in the mobile-originated-only mode may be triggered explicitly or implicitly. For example, the WTRU may operate in the mobile-originated-only mode if an inactivity timer expires. The WTRU may switch the mode in accordance with a pre-configured schedule. After transition of the operation mode, the WTRU may send a message to the network indicating such mode switch.
1. A wireless transmit/receive unit (WTRU) supporting machine-type communications, comprising:
a processor configured to receive from a communications network a trigger for changing the WTRU from a mobile originated-and-terminated-mode to a mobile-originated-only mode comprising a time value for a WTRU timer that corresponds to when the WTRU changes from a mobile originated-and-terminated-mode to a mobile-originated-only mode;
the processor configured to set the time value in the timer; and
the processor configured to change the WTRU from the mobile originated-and-terminated-mode to the mobile-originated-only mode when the WTRU timer reaches the time value.
2. The WTRU of claim 1 , wherein the processor is further configured to change the WTRU from the mobile-originated-only mode to the mobile originated-and-terminated-mode for a mobile origination event.
3. The WTRU of claim 1 , wherein the processor is further configured to send a message to the communications network indicating that the WTRU changed from the mobile-originated-only mode to the mobile originated-and-terminated-mode.
4. The WTRU of claim 1 , where the mobile-originated-only mode comprises the WTRU not performing page monitoring, cell reselection, and location update procedures.
5. The WTRU of claim 1 , wherein the mobile-originated-only mode comprises the WTRU not performing one of page monitoring procedures, cell reselection procedures, and location update procedures.
6. The WTRU of claim 1 , wherein the mobile-originated-only mode comprises the WTRU not performing cell reselection and page monitoring procedures.
7. The WTRU of claim 1 , wherein the mobile-originated-only mode comprises the WTRU not performing cell reselection and location update procedures.
8. The WTRU of claim 1 , wherein the mobile-originated-only mode comprises the WTRU not performing page monitoring and location update procedures.
9. The WTRU of claim 1 , wherein the processor is configured to receive from a communications network the trigger in one of an attach message, location update message, tracking area update message, or a routing area update message.
10. The WTRU of claim 1 , further comprising the timer.
11. A method of supporting machine-type communications implemented by a WTRU, the method comprising:
receiving in the WTRU from a communications network a trigger for changing the WTRU from a mobile originated-and-terminated-mode to a mobile-originated-only mode comprising a time value for a WTRU timer that corresponds to when the WTRU changes from a mobile originated-and-terminated-mode to a mobile-originated-only mode;
setting the time value in the WTRU timer; and
changing the WTRU from the mobile originated-and-terminated-mode to the mobile-originated-only mode when the WTRU timer reaches the time value.
12. The method of claim 11 , further comprising changing the WTRU from the mobile-originated-only mode to the mobile originated-and-terminated-mode for a mobile origination event.
13. The method of claim 11 , further comprising sending a message to the communications network indicating that the WTRU changed from the mobile-originated-only mode to the mobile originated-and-terminated-mode.
14. The method of claim 11 , where the mobile-originated-only mode comprises the WTRU not performing page monitoring, cell reselection, and location update procedures.
15. The method of claim 11 , where the mobile-originated-only wherein the mobile-originated-only mode comprises the WTRU not performing page monitoring procedures.
16. The method of claim 11 , wherein the mobile-originated-only mode comprises the WTRU not performing cell reselection procedures.
17. The method of claim 11 , wherein the mobile-originated-only mode comprises the WTRU not performing location update procedures.
18. The method of claim 11 , where the mobile-originated-only mode comprises the WTRU not performing at least one of page monitoring, cell reselection, and location update procedures.
19. The method of claim 11 , wherein the processor is configured to receive, from a communications network, the trigger in one of an attach message, location update message, tracking area update message, or a routing area update message.