Pparatus and method for hand-over in heterogeneous system

The present invention relates to a handover apparatus and method between heterogeneous systems, especially the soybean with conventional third-generation mobile communication system UMTS (Universal Mobile Tele-communication System) system and the current standardization work is ongoing IEEE 802.16 system is a BWA (Broadband Wireless between Access) heterogeneous systems that can offer flexible services between the system relates to a handover apparatus and method. Hand-over device between different systems according to the invention is based on extracts the address and recognize the configuration node of the handover the system from the handover request of the terminal and the extracted address and the identifier of each system-specific cell information about the heterogeneous systems storing and searching a database with the to verify the validity of the handover request of the MS. Then, performing the preparation steps required before the terminal is actually handed over to the handover request after the verification, and performs a handover process between different system. At this time, the registration process of the mobile IP used for macro mobility registration by minimizing the delay for a handover process between different system, it is possible to provide a more flexible service. UMTS, BWA, heterogeneous system, vertical handover, IWF, HA, efficacy, cell information,