INFORMATION PROCESSING DEVICE AND INFORMATION PROCESSING METHOD, AS WELL AS NONTEMPORARY COMPUTER READABLE MEDIUM WHEREIN INFORMATION PROCESSING HAS BEEN STORED

摘要

An object is to form an appropriate beam even when the quality of an estimated transmission channel value is poor. Transmission channel estimation is performed for NT×NR reception signals and estimated transmission channel values are thereby output. The estimated transmission channel values are divided into N groups of NT×M estimated transmission channel values and a covariance matrix with M rows and N columns is obtained for each of the estimated transmission channel value groups. The N covariance matrixes are averaged over a predetermined range in terms of at least a time or a frequency (first averaging). Eigenvectors or eigenvector equivalents are generated based on respective N averaging outputs. Transmission channels between base station antennas and terminal antennas are generated from the eigenvectors or eigenvector equivalents and the estimated transmission channel values. Covariance matrixes are obtained for the generated transmission channels. The covariance matrixes are averaged over a different range from the range used in the first averaging (second averaging) and a beam forming weight is obtained by combining the generated eigenvectors or eigenvector equivalents.