CHANNEL INFORMATION COMPRESSING APPARATUS AND METHOD, COMPUTER PROGRAM, AND RECEIVER

摘要

PROBLEM TO BE SOLVED: To perform information compression while maintaining accuracy of channel information satisfactorily.SOLUTION: A channel information compressing apparatus comprises: a DCT section 41 for performing discrete cosine transform of channel information (CSI) representing a state of a communication channel; and an information compressing section 42 for compressing information of a high frequency component included in the discrete cosine transform data obtained by the discrete cosine transform.