Patent ID: 7983367

Claim:
A method for processing communication signals, the method comprising: generating a time domain difference weighting factor and a frequency domain difference weighting factor, based on at least channel estimates; computing a time-frequency domain difference by forming a weighted sum comprising a time domain difference and a frequency domain difference, said forming using at least said time domain difference weighting factor and said frequency domain weighting factor, wherein said computing said time-frequency domain difference occurs according to the following relationship: Δ C Time-Frequency =αΔC Time +βΔC Frequency where ΔC Time-Frequency is said time-frequency domain difference, ΔC Time is said time domain difference, ΔC Frequency is said frequency domain difference, α is said time domain difference weighting factor, and β is said frequency domain difference weighting factor; and generating a channel quality indicator (CQI) feedback message comprising said time-frequency domain difference.