Patent ID: 7733993
Filing Date: 2010-06-08
Classification: H04L

Abstract:
1. A method comprising: receiving a signal over a plurality of orthogonal subcarriers and storing the signal in a buffer; estimating a symbol from the buffered signal; determining a decision noise from a difference between the buffered signal and the estimated symbol; estimating phase noise from the decision noise and the estimated symbol; and canceling the estimated phase noise from the buffered signal and estimating a phase noise corrected estimated symbol therefrom, determining a next iterative decision noise from the buffered signal and the phase noise corrected estimated symbol; estimating a next iterative phase noise from the next iterative decision noise and the phase noise corrected estimated symbol; accumulating all estimated phase noise for the buffered signal; and wherein canceling the estimated phase noise comprises canceling the accumulated estimated phase noise from the buffered signal and estimating an iteratively phase noise corrected estimated symbol therefrom.