Patent ID: 8583061

Claim:
A method of peak suppression on a multicarrier transmitter comprising: establishing a ceiling value for a sum of peak power for a first baseband signal, which is referred to as the A(t) signal, and a second baseband signal, which is referred to as the B(t) signal, and no correlation exists between the power peaks of the A(t) signal and the B(t) signal; detecting that a sum of the A(t) signal and the B(t) signal has a peak power exceeding the ceiling value; responsive to the detecting: modifying the A(t) signal to generate a modified baseband signal, referred to as a A′(t) signal; modifying the B(t) to generate a modified baseband signal, referred to as a B′(t) signal, wherein a sum of the A′(t) signal and the B′(t) signal has a peak power lower than the ceiling value; filtering the A′(t) signal with a first root raised cosine filter to create an A″(t) signal; filtering the B′(t) signal with a second root raised cosine filter to create a B″(t) signal; window clipping the A″(t) signal to create an A′″(t) signal; window clipping the B″(t) signal to create a B′″(t) signal; filtering the A′″(t) signal with a third root raised cosine filter to create an A″″(t) signal; filtering the B′″(t) signal with a fourth root raised cosine filter to create a B″″(t) signal; and conveying the A″″(t) signal and the B″″(t) signal to components for further processing, wherein the further processing results in the A″″(t) signal and the B″″(t) signal being concurrently amplified by a linear power amplifier and being concurrently transmitted by a dual carrier transmitter.