Method and apparatus for state/mode transitioning to a dormant mode

摘要

Fast dormant mode in 3GPP TS 25.331 release 8 (and higher): In chapter 8.1.4.2 if the timer T323 is not running and the UE is in the RRC state CELL_PCH or URA_PCH the UE might cause a high signalling load by sending too many signaling connection release indication (SCRI) messages with a cause "UE Requested PS Data session end". This signalling load is reduced by a modification of UE fast dormancy behaviour in PCH states. When the UE sends a SCRI with "UE Requested PS Data session end" cause in CELL_PCH or URA_PCH state a counter V316 is incremented. When the counter reaches a limit (e.g. 2 times) then the UE is prohibited from sending further SCRI messages in CELL_PCH or URA_PCH state. The UE does not trigger the SCRI message with cause "UE Requested PS Data session end" from the CELL_PCH/URA_PCH states more than said 2 times. The counter is reset after transmitting signalling on radio bearer 3 (RB3) or upward.