Method and system for allocating resource in a wireless communication system using ofdma

The present invention relates to a handover method and system in a wireless communication system and, in particular, in a wireless communication system, the hard handover method and system. In the present invention, in a wireless communication system using the OFDMA scheme to lower the cut rate over at call hand, by reducing the signal-to-noise ratio and improve the communication quality, and provides a method and system for reducing influence such as interference to neighboring cells. The system according to the present invention is to provide a base station of a system for providing a handover of the UE in a wireless communication system including the OFDMA scheme of the terminal and the subscriber station and the base station for communication. The BS, the subscriber station and the communication in the terminal in a distributed subcarrier allocation scheme in a specific area set for assigning a hand-over terminal of each data transmission zone of the downlink and uplink when positioned in a handover area to perform setting the sub-channel, and in the sub-channel allocation among the subchannels ratio set in the region assigned to the terminal in performing the handover of the sub channel. OFDMA, frequency reuse factor, the handover, hard handover