Patent ID: 7095798

Claim:
A multi-carrier communication system, comprising: a plurality of communication signal sources each providing a band limited communication signal; a plurality of frequency converters for offsetting the frequency of the plural band limited communication signals; a first combiner for combining the plural frequency offset band limited communication signals to form a band limited multi-carrier communication signal; and a peak reduction unit coupled to receive said band limited multi-carrier communication signal and provide a band limited peak reduced multi-carrier output signal, the peak reduction unit comprising: a peak reduction calculation circuit for providing a peak reduction correction signal determined from the communication signal and a signal peak limit value, a plurality of correction filters for filtering the peak reduction correction signal and providing a plurality of band limited peak reduction correction signals, and a second combiner for combining said band limited multi-carrier communication signal and said plurality of band limited peak reduction correction signals to provide a peak reduced multi-carrier output signal band limited in plural bands.