Patent ID: 8107900

Claim:
A multicarrier transmitting apparatus comprising: a peak reduction section that reduces peak power appearing in a first multicarrier signal, the peak reduction section comprising: a power detection section that divides the first multicarrier signal into a second multicarrier signal and a third multicarrier signal and detects power values at regular intervals with respect to one of the second multicarrier signal and the third multicarrier signal; a signal component extraction section that extracts a signal component equal to or greater than a predetermined level from the one of the second multicarrier signal and the third multicarrier signal, the signal component being extracted when one of the detected power values is equal to or greater than the predetermined level; a band-limiting filter that only allows a predetermined band to pass in the extracted signal component to generate a band-limited signal component; a multiplier that multiplies the band-limited signal component and a weight to generate a weighted signal component, the weight being compensation for power loss in the band-limiting filter; and an adder that subtracts the weighted signal component from the other one of the second multicarrier signal and the third multicarrier signal.