WIRELESS COMMUNICATION APPARATUS, MOBILE TERMINAL AND WIRELESS COMMUNICATION METHOD

摘要

[PROBLEMS] To achieve a wireless communication even with the other end of communication that is a limited-band terminal capable of receiving only limited frequencies. [MEANS FOR SOLVING PROBLEMS] There are included a frequency channel assigning part (10) for assigning frequency channels; a terminal reception quality information processing part (6) for calculating a required transmission power and an optimum modulation rate for each of subcarriers; a subcarrier power control part (12) for controlling the transmission power level for each of the subcarriers; and a determining part (10) for determining the reception bandwidth of the other end of communication and further determining whether the other end of communication is an all-band terminal capable of receiving all of the frequency channels within a system band or a limited-band terminal capable of receiving only limited frequencies. If the other end of communication is a limited-band terminal, then the transmission power of all or part of the subcarriers is reduced for frequency channels that are adjacent to the reception band assigned to the other end of communication and that are to be assigned to different other ends of communication.