US 9,888,518 B2Granted

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

AssigneeSamsung Electronics Co., Ltd.

InventorJong-Man Park

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Abstract

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.

Claims20

Dependent claims

A portable communication device comprising:

a display;
and
processing circuitry configured to:
obtain information indicating whether packet data is communicated between the portable communication device and a network;
determine, based at least in part on the information, whether the packet data has not been communicated between the portable communication device and the network for a specified period of time;
transmit a signaling connection release indication (SCRI) message to a radio network controller (RNC) corresponding to the network while a packet data protocol (PDP) connection is maintained between the portable communication device and a serving general packet radio service support node (SGSN), the transmitting based at least in part on a determination that the packet data has not been communicated between the portable communication device and the network for the specified period of time;
receive a radio resource control (RRC) connection release message from the RNC based at least in part on the transmitting of the SCRI message;
and
transition an RRC state of the portable communication device to an idle state in response to the RRC connection release message received from the RNC.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/233,836Filed 10 Aug 2016 · continuation
Priority: KR 10-2007-003667013 Apr 2007
Published: US 2016/0353515 A11 Dec 2016
Granted: 6 Feb 2018
Term ends: Not estimatedThe source records don’t support an estimate.

Classification13 codes

H04W 76/27
Manipulation of established connections: transitions between radio resource control [RRC] states
H04W 72/04
Local resource management: wireless resource allocation
H04W 76/38
Connection release: triggered by timers
H04B 2201/7071
Efficiency-related aspects: with dynamic control of receiver resources

Family

Application12/082,398Parent of this continuation · filed 10 Apr 2008
Application14/095,699Parent of this continuation · filed 3 Dec 2013
US 8,681,672 B2Parent of this continuation · filed 5 Mar 2014
US 2016/0353515 A1Pre-grant publication · published 1 Dec 2016
US 9,420,625 B2Parent of this continuation
US 2008/0253312 A1Published application
US 2014/0092767 A1Published application
US 9,888,518 B2This patent

From the US filing history. Foreign family members aren’t listed.