Patent ID: 7395076

Claim:
A method for paging user equipments (UEs) providing a second service different from a first service in a mobile communication system providing the first service and the second service, comprising the steps of: determining, by a serving General Packet Radio Service(GPRS) support node(SGSN), an identifier indicating the second service and a coefficient related to paging occasions for transmitting a paging instance indicating presence/absence of paging information related to the second service in response to a request for the second service from the UEs, and transmitting the determined identifier and coefficient to a radio network controller (RNC); and transmitting, by the RNC, the identifier and the coefficient to the UEs, determining the paging occasions and transmission times of the paging instance in each of the paging occasions by using the identifier and the coefficient, and transmitting the paging instances over a first channel at the transmission times of the paging instances for each of the paging occasions so that the UEs recognize presence/absence of the paging information.