Patent ID: 7603092

Claim:
A method for selecting at least one operating parameter of a communication system, comprising: determining a receive signal strength indicator (RSSI) for a communication signal; selecting a data set comprising a plurality of known datum; determining a least squares estimate (LSCE) for the data set by dividing each known datum's received value by its predetermined value; forming Yule-Walker equations based on, at least in part, correlation coefficients determined for the data set; solving the Yule-Walker equations by determining linear combination coefficients for at least one of the known datum to determine at least a variance of linear estimation error; determining an intermediate value for the communication signal based on, at least in part, a received value of at least one known datum contained in the communication signal, a predetermined value of the known datum and a channel estimate; estimating a carrier to interference and noise ratio (CINR) based on, at least in part, the RSSI and the intermediate value, a scalar determined from the linear combination coefficients and comprises solving the equation CINR = S × RSSI D - 1 + S × σ ɛ 2 D - σ ɛ 2 × RSSI D where S is the determined scalar, D is the intermediate value and σ ε 2 is the variance; and selecting the operating parameter based on, at least in part, the estimated CINR.