RADIO BASE STATION APPARATUS

摘要

There are provided a transmission weight computing section (111) for computing a transmission weight for directional transmission using an OFDM signal, a transmission correcting value memory section (112) for storing one correcting value for correcting the transmission weight for each sub-carrier of an OFDM signal or each band gathering a plurality of sub-carriers, a transmission weight correcting section (113) for correcting the transmission weight by the correcting value, and a transmitting branch (101-N) for weighting transmission data by a transmission weight outputted from the transmission weight correcting section (113) on a sub-carrier-by-sub-carrier basis and delivering it to an antenna. The transmission weight and reception weight computed on a sub-carrier-by-sub-carrier basis is corrected based on each sub-carrier whereby an amplitude deviation and phase deviation to occur between the transmitting/receiving branches can be corrected. Even in the case that a frequency characteristic takes place on an amplitude/phase deviation between the transmitting/receiving branches, a desired beam pattern can be obtained.