Patent ID: 6963617
Filing Date: 2005-11-08
Classification: H04L

Abstract:
1. An OFDM receiver, comprising: a received signal processor, for demodulating, A-D converting, and down-sampling received signals to form a time domain digital signal vector; an equalizer, having at least a feedback section and having a plurality of tap coefficients, the equalizer acting on the time domain digital signal vector to form a filtered time domain sequence; a Fast Fourier Transform processor, for acting on the filtered time domain sequence to form a frequency domain vector; an output device, for converting the frequency domain vector into an output data signal; an inverse Fast Fourier Transform processor, for acting on the output data signal to form an estimate of the transmitted sequence; wherein the estimate of the transmitted sequence is supplied as an input to the equalizer to enable decision directed adaptation of the tap coefficients thereof, and further as an input to the feedback section of the equalizer.