METHOD AND APPARATUS FOR INTERFERENCE SIGNAL CODE POWER AND NOISE VARIANCE ESTIMATION

摘要

Method and apparatus for interference signal code power noise variance estimation employing a reduced number of samples utilizing the equation (15), where (14), where (I), where (I), where (12) and where (13). As an alternative, a recursive technique may be employed wherein the noise variance is estimated from the ignored coefficients of the estimated channel output and upgraded recursively as per the following: (II) where ĥi(j) are the channel estimates after the post processing and the noise variance estimates sigman-12, and the initial values of ĥi(j) are all zeros.