A METHOD FOR RECEIVING A PRECODED SIGNAL IN COLLABORATIVE MULTIPLE INPUT MULTIPLE OUTPUT COMMUNICATION SYSTEM

摘要

A method for receiving a pre-coded signal in collaborative multiple input multiple output communication system is provided to perform pre-coding by sharing pre-coding matrix information transmitted from a terminal in a closed roof mode when transmitting data signal from multiple base station to a single terminal. A serving base station BS_1(21-1) performs a pre-coding about data stream. A pre-coding matrix generating unit(22-1) produces a weighted value or a pre-coding matrix which is used for performing pre-coding. A pre-coder(23-1) performs pre-coding by multiplying the produced weighted value or pre-coding matrix to data stream. A backbone network(24) transmits, receives, and shares information among a plurality of adjacent base stations. A scheduler(25) transmits data to a corresponding terminal by using obtained channel information.