Patent ID: 7139320

Claim:
A multicarrier signal receiver for receiving a serial signal sequence of modulated subcarriers carrying information for input pilot and data symbols, comprising: a subcarrier-to-symbol converter for converting said serial signal sequence into received pilot and data symbols representative of said input pilot and data symbols; an inverse Fourier transformer for selecting said received pilot symbols from said received pilot and data symbols and then inverse Fourier transforming said received pilot symbols into received pilot multicarrier blocks a pilot multicarrier generator for generating a computed pilot multicarrier block having complex conjugates of system pilot symbols corresponding to said input pilot symbols; a correlator for correlating said received pilot multicarrier blocks with said computed pilot multicarrier block for providing a correlation function; a frequency offset estimator using said correlation function for providing a frequency synchronization adjustment; and a signal source for providing a reference signal having a frequency responsive to said frequency synchronization adjustment; wherein: the subcarrier-to-symbol converter uses said reference signal for frequency synchronizing to said serial signal sequence and providing a frequency synchronized serial signal sequence, said received pilot and data symbols derived from said frequency synchronized serial signal sequence.