COMMUNICATION SYSTEM, COMMUNICATION METHOD, BASE STATION DEVICE, AND MOBILE STATION DEVICE

摘要

PROBLEM TO BE SOLVED: To realize high interference suppression effect in a communication system in which base station devices perform communication in a coordinated manner.SOLUTION: A mobile station device 200-1 generates a first channel estimation value between the mobile station device 200-1 and a base station device 100-1 and a second channel estimation value between base station devices 100-2 and 100-3, generates first channel information for reporting the first channel estimation value and second channel information for reporting the second channel estimation value in the same channel bit number while making an amount of the second channel information become larger than an amount of the first channel information, and transmits the first and second channel information to the base station device 100-1. When the base stations 100-2 and 100-3 receive the first and second channel information, the base stations 100-2 and 100-3 notify the main base station device 100-1 of the pieces of channel information, and the main base station device 100-1 uses the first and second channel information to calculate transmission weight for performing coordination control by the respective base station devices.