APPARATUS AND METHOD FOR APPARATUS AND METHOD FOR SUB-CHANNEL ALLOCATION IN A WIRELESS COMMUNICATION SYSTEM

A sub-channel allocation apparatus and method in a wireless communication system are provided to reduce a signaling overhead and increase a system throughput by reducing the system overhead. A movement speed measuring unit(501) measures a movement speed of terminals. A resource allocation period determining unit(503) selects each terminal to which sub-channel are to be allocated, and determines a resource allocation period for allocating sub-channels to the terminals. An average data amount calculating unit(505) receives the determined resource allocation period and calculates an average amount of data to be transmitted to each terminal. A resource allocating unit(507) allocates sub-channels such that the average amount of data is satisfied in consideration of channel quality information of the terminals. A transmitting unit(509) generates a control signal according to the sub-channel allocation and transmits it to the terminals.