APPARATUS AND METHOD FOR DATA TRANSMISSION RATE ASSIGNMENT AT THE TIME MOVING FROM WCDMA NETWORK TO WIBRO NETWORK IN MOBILE COMMUNICATION

摘要

A system and a method for allocating a data rate when a mobile terminal moves from a WCDMA network to a WiBro network are provided to guarantee the continuity of a data service for a mobile terminal and enable the mobile terminal to efficiently manage and use resources of a WiBro network by suitably allocating a data rate when the mobile terminal moves from a WCDMA network to the WiBro network. A system for allocating a data rate when a mobile terminal(10) moves from a WCDMA network to a WiBro network consists of a network change notification unit and a resource allocation unit. The network change notification unit comprises a node B(21), an RNC(Radio Network Controller)(22), an SGSN(Serving GPRS Support Node)(24), and an HLR(Home Location Register)(25). The network change notification unit receives a coverage change notification message from the mobile terminal which is located in the WCDMA network, and transmits the data rate information and handoff information of the mobile terminal to the WiBro network. The resource allocation unit comprises an ACR(Access Control Router)(32) and a RAS(Radio Access Station)(31). The ACR receives the data rate information and handoff information of the mobile terminal from the network change notification unit, and allocates a data rate together with communication resources on the basis of the received data rate information. The RAS provides the allocated communication resources to the mobile terminal.