Patent ID: 7773950
Filing Date: 2010-08-10
Classification: H04B,H04L

Abstract:
1. A method of estimating signal quality comprising: calculating a signal-to-interference ratio estimate for a received signal subject to a total impairment comprising a first type of impairment that is relatively harmful with respect to demodulation of the received signal and a second type of impairment that is relatively benign with respect to demodulation of the received signal; and suppressing effects of the second type of impairment from the calculation of the signal-to-interference ratio estimate such that the signal-to-interference ratio estimate depends primarily on the first type of impairment by subtracting a correlation estimate for the second type of impairment from a correlation estimate for the total impairment to obtain a correlation estimate for the first type of impairment, and calculating the signal-to-interference ratio estimate based on the correlation estimate for the first type of impairment.