When information such as the quality of the receive signal of each chunk is contained in channel quality indicators (CQI) sent from terminals 12 to 14 (FIG. 9) to the base station apparatus 11, for terminal 12, the base station apparatus 11 compares the quality of the receive signals of groups L11 and L13, i.e. in the frequency band f1 of transfer function C11 and in the frequency band f3 of trans