Patent ID: 6697651
Filing Date: 2004-02-24
Classification: H04L,H04W

Abstract:
A communication on system comprising a network and a plurality of user terminals that are coupled to the network via a communication channel using wireless radio frequency transmission and having a downlink channel for transmitting messages in the direction from the network to the user terminals, wherein the downlink channel comprises:a paging channel for transmission of paging messages in paging frames for initiating communication with a user terminal allocated to a paging group of a plurality of user terminals; and a paging indicator channel for transmission of a paging indicator belonging to said paging group, in case there is a paging message for the user terminal belonging to said paging group, wherein the user terminal processes a next paging frame transmitted on the paging channel to determine whether there is a paging message intended for the user when the paging indicator has been transmitted on the paging indicator channel; and wherein the paging message on the paging channel comprises a point-to-multipoint-multicast (PTM-M) group identifier to identify a PTM-M group.