Method for transitioning radio resource control state of user equipment to idle state, system therefor, and the same user equipment

摘要

In a WCDMA mobile communication system, when the amount of packet traffic transmitted to or received from a UE decreases during a predetermined time in a CELL_DCH state in which a WCDMA packet data connection has been established, the UE transitions to a CELL_FACH state by a radio network controller (RNC). Thereafter, it is determined if there is no transmitted or received packet traffic during a certain time in the CELL_FACH state (which is an RRC state in which an RRC connection has been connected, and the dedicated physical channel has been released). When it is determined that there is no transmitted or received packet traffic during the certain time, the UE requests a network to release the RRC connection by utilizing a Signaling Connection Release Indication (SCRI) message. The invention enables a UE to check a packet transmission or reception flow, and to directly transmit the SCRI message to the network.

主权项

1. A system for transitioning a radio resource control (RRC) state of a user equipment to an idle state, the system comprising:
a radio network controller configured to:
receive, from the user equipment, a Signaling Connection Release indication (SCRI) message configured to release a Signaling Connection while maintaining a Packet Data Protocol (PDP) connection, andtransmit an RRC Connection Release message to the user equipment in response to receiving the SCRI message from the user equipment,wherein the user equipment is configured to: measure a volume of packet data traffic transmitted by or received by the user equipment, transmit the SCRI message upon determining that the packet data traffic has not been generated during a predetermined time, and transition the RRC state of the user equipment to the idle state in response to receiving the RRC Connection Release message from the radio network controller.