Patent ID: 7463697
Filing Date: 2008-12-09
Classification: H04L

Abstract:
1. A multicarrier transmitter comprising: a frequency-domain predistorter to multiply frequency domain subcarriers of an orthogonal frequency division multiplexed symbol(OFDM) symbol by complex coefficients; clipping circuitry to clip a time-domain baseband signal transformed from a frequency-domain output of the frequency-domain predistorter; and a time-domain predistorter to perform low-pass filtering on the clipped time-domain baseband signal, wherein after the operation of the frequency-domain predistorter, an inverse fast Fourier transform is performed to transform the frequency-domain output of the frequency-domain predistorter to the time-domain baseband signal for the clipping circuitry, the time-domain baseband signal having frequency components of the OFDM symbol.