METHOD AND DEVICE FOR TRANSMITTING/RECEIVING CHANNEL STATE INFORMATION IN COORDINATED MULTIPOINT COMMUNICATION SYSTEM

摘要

The present invention relates to a wireless communication system. More particularly, disclosed are a method and a device for transmitting channel state information in a coordinated multipoint communication system. The method for transmitting channel state information from a terminal to multiple base stations, according to one embodiment of the present invention, comprise the steps of: transmitting the CSI including long-term broadband PMI and short-term sub-band PMI to a first base station; transmitting the CSI including the long-term broadband PMI and not including the short-term sub-band PMI to a second base station; and transmitting the CSI including the short-term sub-band PMI to the second base station, when a request for the short-term sub-band PMI transmission to the second base station is received.