INTEGRATED RADIO TELECOMMUNICATIONS NETWORK AND METHOD OF INTERWORKING AN ANSI-41 NETWORK AND THE GENERAL PACKET RADIO SERVICE (GPRS)

摘要

An integrated radio telecommunications network which integrates an ANSI-41circuit switched network and a General Packet RadioService (GPRS) packet data network to support a mobile station which operatesin both the ANSI-41 network and the GPRS network. Aninterworking function (37) interfaces a mobile switching center (MSC) (23) inthe ANSI-41 network with a serving GPRS switching node(SGSN) (32) in the GPRS network by mapping circuit switched signaling utilizedby the MSC into GPRS packet switched signaling utilizedby the SGSN, and mapping GPRS packet switched signaling into circuit switchedsignaling. An interworking GPRS base station controller(39) interfaces the SGSN with a GPRS/ANSI-136 base station (26) which supportsboth ANSI-136 operations and GPRS operations. Theinterworking GPRS base station controller adapts the traffic signaling formatutilized by the SGSN into an air interface traffic signalingformat utilized by the GPRS/ANSI-136 base station. An authentication centerinterface (Fl) passes the authentication state of the mobilestation between an ANSI-41 home location register/authentication center(HLR/AC) (21) in the ANSI-41 network, and a GPRS homelocation register/authentication center (HLR/AUC) (31) in the GPRS network.