Patent ID: 7529179

Claim:
An Orthogonal Frequency Division Multiplexing (OFDM) receiver that receives a modulated OFDM signal through a channel, the OFDM receiver comprising: an RF downconverter that generates a downconverted modulated OFDM signal based on the modulated OFDM signal; an analog-to-digital converter (ADC) that generates digitized OFDM symbols based on the downconverted modulated OFDM signal; a carrier-phase correction module that generates time-domain symbols based on the digitized OFDM symbols; a fast Fourier transform (FFT) module that generates frequency-domain symbols based on the time-domain symbols; and an estimator module that receives the frequency-domain symbols and determines an integer carrier frequency offset (CFO) estimate and a channel estimate, and that generates a respective integer CFO estimate signal and channel estimate signal.