METHOD AND SYSTEM OF PERFORMING RETRANSMISSION REQUEST IN BASE STATION COOPERATION COMMUNICATION SYSTEM

摘要

PURPOSE: A re-transmission request implementing method for reducing an interference and a system for the same for efficiently reducing cell interference in a base station collaborative communications system are provided to reduce the interference between cells through information exchange. CONSTITUTION: A sub base station(202) varies a second precoding matrix index into a third precoding matrix index. The sub base station transmits data to a second mobile station(204). A first terminal(203) transmits and receives a main base station(201) and data. In case error generates in data received from primary, the first terminal transmits the re-transmission request signal. The second terminal transmits and receives the part base station and data.