RADIO COMMUNICATION METHOD AND RADIO COMMUNICATION SYSTEM

摘要

PROBLEM TO BE SOLVED: To suppress decline of throughput due to feedback of channel information without increasing the errors of the channel information. SOLUTION: The radio communication method includes: a channel information estimation step in which a second communication device estimates the channel information between a plurality of antenna elements provided in a first communication device; an estimation and compensation step of estimating the entire phase inclination of the estimated channel information, and compensating the channel information by the estimated phase inclination; a normalization step of normalizing the compensated channel information; a quantization step of selecting one of the normalized channel information as reference channel information and quantizing a difference of each of the other normalized channel information with the reference channel information as a reference and the reference channel information; and a transmission step of transmitting the quantized channel information indicating the quantized reference channel information and the respective differences to the first communication device. COPYRIGHT: (C)2011,JPO&INPIT