Patent ID: 6529490
Filing Date: 2003-03-04
Classification: H04L,H04Q,H04W

Abstract:
In an IMT-2000 network system comprising a RAN (Radio Access Network) including a plurality of MT (Mobile Terminal), a plurality of BTS (Base Terminal Station) connected with a plurality of the MT based on a wireless connection for controlling the MT, and a plurality of RNC (Radio Network Controller) for controlling a plurality of the BTS, CN (Core Network) which is connected with a VLR (Visited Location Register) and HLR/GLR (Home Location Register/Gateway Location Register) and includes a plurality of MSC (Mobile Switching Center) which registers and manages the RNC in the RAN for thereby transferring and exchanging a radio resource and performs a high speed transfer function and exchanging function with respect to multimedia service, and an IN (Intelligent Network including a SCP (Service Control Point) provided with a data used for a service, and an IP (Intelligent Peripheral) provided various multimedia services, and improved IMT-2000 network system comprising:a plurality of RNC each formed of a RACF (Radio Access Control Function) for managing a radio resource and call, an ARF (Access Link Relay Function) for performing an anchor handover between the RNC, and a SACF (Service Access Control Function) for managing and controlling the service; a first through third MSC including a SSF (Service Switching Function) for analyzing a service transferred from each of IN and transferring a proper work request to the CCF (Call Control Function) and a CCF for transferring a service request message to the SSF and processing a service request transferred from the SSF; and wherein the SCP of a corresponding IN requests a handover to the third MSC includes the SSF of the CN and the SACF for the managing and controlling the services to request a handover of the first MSC of a control region based on the movement of the first MT in the control region of the first MSC.