Patent ID: 8261169

Claim:
A wireless communication apparatus for receiving a spatial-multiplex-transmitted transmission signal, the wireless communication apparatus comprising: a function of estimating an error for the transmission signal based on a determination result of the transmission signal, an estimation result of a propagation channel, and a reception signal; a function of performing error correction decoding processing using likelihood information for the transmission signal, which is weighted based on an estimated error; a first decoding processor for generating an estimation result of the transmission signal; a channel estimator for generating an estimation result of the propagation channel; a replica generator for generating a reception replica for the transmission signal based on the estimation result of the transmission signal and the estimation result of the propagation channel; an interference canceller for performing subtracting processing of one or more spatial multiplex signal components from the reception signal; an error component estimator for estimating an error of the reception replica; a separation combiner for separating and combining one or more spatial multiplex signals from an output of the interference canceller; a likelihood calculator for calculating likelihood information for an output of the separation combiner; a weighter for weighting an output of the likelihood calculator based on an output of the error component estimator; and a second decoding processor for performing error correction decoding processing using an output of the weighter, wherein the replica generator generates a transmission signal replica based on the estimation result of the transmission signal and multiplies the estimation result of the propagation channel to generate the reception replica for the transmission signal.