Patent ID: 7941099

Claim:
A method of estimating a signal-interference ratio (SIR) comprising: determining, by an estimator in a transceiver, an estimate of an average signal power (μ 2 ); determining, by the estimator, an estimate of an average interference power (σ 2 ); and dividing, by the estimator, the estimate of the average signal power (μ 2 ) by the estimate of the average interference power (σ 2 ) to obtain an estimate of the SIR, wherein at least one of the estimates of the average signal power (μ 2 ) and the average interference power (σ 2 ) is based on a filtered average of a series of sequential estimates ({circumflex over (μ)} 2 (i), {circumflex over (σ)} 2 (i)) that includes filter terms (f(i), g(i)) applied to each of the series of sequential estimates, and the filter terms (f(i), g(i)) minimize a mean-square error associated with the series of sequential estimates ({circumflex over (μ)} 2 (i), {circumflex over (σ)} 2 (i)) .