METHOD AND SYSTEM FOR IDLE MODE SIGNALLING REDUCTION OF UE MOVING BETWEEN PACKET SWITCHING DOMAIN AND CIRCUIT SWITCHING DOMAIN

摘要

PURPOSE: A method and a system for reducing signaling generated when a GAN(Generic Access Network) terminal move between E-UTRAN(Evolved UMTS Radio Access Network) network and GERAN(GPRS/EDGE Radio Access Network)/UTRAN(UMTS Radio Access Network) network are provided to receive receives call received through GANC(Generic Access Network Controller) at the terminal when the terminal exists in LTE(Long Term Evolution) area or GSM(Global System for Mobile communications)/WCDMA(Wideband Code Division Multiple Access) area. CONSTITUTION: A GAN(Generic Access Network) controller(117) transmits paging request message about receiving call received to circuit switching domain to packer switching domain. The terminal(110) receives the paging request message transmitted from the GAN controller. The terminal transmits the circuit switching domain through paging response message. The terminal receives received call through the GAN controller without location registration in a EPS network from WCDMA(Wideband Code Division Multiple Access)/GSM(Global System for Mobile communications) service area.