Patent ID: 7633926

Claim:
A communication system comprising: a cell-based wireless network containing a plurality of mobile nodes, said cell-based wireless network being designed to operate according to GSM (Global System for Mobile Communication) protocol; a data network containing a plurality of end machines, each of said plurality of end machines being a source of a corresponding multicast application; a BSS (base station system) transmitting packet data to and receiving packet data from said plurality of mobile nodes; a MSC (mobile switching center) coupled to said BSS, said MSC controlling allocation of channels on said cell-based wireless network by interfacing with said BSS; a SGSN (Serving GPRS Support Node) coupled to said BSS; a GGSN (Gateway GPRS Support Node) coupled to said SGSN and said data network, said GGSN to operate as a router attached to said data network, said GGSN receiving a list of multicast applications from said SGSN, each of said list of multicast applications being of interest at least to one of said plurality of mobile nodes, said GGSN forwarding data related to said list of multicast applications to said SGSN, wherein said SGSN forwards said data to said cell-based wireless network using said BSS such that each of said plurality of mobile nodes has access to corresponding multicast applications of interest.