Transmission power control method and apparatus, and communication apparatus

摘要

A transmission power control apparatus for outputting a transmission data to be filtered by a band-limiting filter ( 9 ), includes: a branching unit ( 81 ) for branching transmission data before being entered into the band-limiting filter ( 9 ); a peak detecting filter ( 84 ) having the same structure as that of the band-limiting filter ( 9 ), for entering thereinto one of the transmission data branched by this branching unit ( 81 ); units ( 85 to 89 ) for calculating a correction value capable of suppressing a power peak of the transmission data by being filtered by this peak detecting filter ( 84 ); a delaying unit for delaying the other data of the branched transmission data by time required to calculate the correction value; and a correcting unit ( 83 ) for correcting the transmission data delayed by this delaying unit ( 82 ) based upon the correction value, and thereafter, for entering the corrected transmission data into the band-limiting filter ( 9 ).