Patent ID: 7561648

Claim:
A method, comprising: receiving a signal at a time t, the signal including frequency error; removing from said signal an estimate of the frequency error in said signal, thereby generating a frequency corrected signal representing the signal received at time t; equalizing said received signal, wherein the equalizing introduces a delay of n samples, such that at time t an equalized output is generated representing a signal at time t−n; generating an estimate of a first component of the frequency error in the signal received at time t based on the equalized output representing the signal at time t−n; generating an estimate of a second component of the error in the signal received at time t based on an equalized output at time t−1 recalculating the first component in dependence on the frequency corrected received signal representing the signal at time t and recalculating the second component; and in dependence on the recalculated first component, estimating a first prediction of the frequency error for time t+n, wherein the first prediction of the estimated frequency error for time t+n is used to generate a frequency corrected signal for a signal received at time t+n and in dependence on the recalculated second component estimating a second prediction of the frequency.