ESTIMATING CHANNEL RESPONSES, FREQUENCY AND TIMING OFFSET USING POLYNOMIAL EQUATIONS

摘要

The method includes determining a number of roots of a first polynomial equation that is a function of a variable corresponding to frequency offset errors of carrier frequencies of training symbols. The roots of the variable correspond to possible frequency offset errors. Based on observations, the possible frequency offset errors, and possible symbol timing offset errors of the observation times of the training symbols, a number of estimated channel responses are determined corresponding to the training symbols. The method includes using a second polynomial equation that is a function of at least the estimated channel responses, the possible frequency offset errors, and the possible symbol timing offset errors, determining at least a resultant frequency offset error and a resultant symbol timing offset error.