Patent ID: 6876634

Claim:
An architecture of a mobile communication system network comprising: a plurality of radio network controllers each connected to a plurality of base stations in a cell or a sector to which the network controller pertains for separating a packet data service path from a circuit data service path when a particular mobile station interlocks with the network; at least one mobile switching center connected to the plurality of radio network controllers in a region of the mobile switching center by an ATM switching system for routing an originating call from the mobile station or a terminating call to the mobile station; a VLR/HLR connected to the mobile switching center for managing mobility of the mobile stations; at least one PDGN for routing a packet data provided from either the mobile switching center or an external network according to a terminating call side identification number; and wherein the mobile switching center is a home network of the mobile station, the mobile switching center is connected to the PDGN having a subnetwork address in which a Supplementary Mobile Identification Number (SMIN) is part of the communication system network and is associated with the mobile station, wherein the mobile communication system is provided without any packet data service node.