COOPERATIVE COMMUNICATION METHOD IN CELLULAR WIRELESS COMMUNICATION SYSTEM AND TERMINAL FOR PERFORMING THE METHOD

摘要

The present invention relates to a cooperative communication method, in which a plurality of cells performs multiple antenna transmission and receiving cooperatively with each other in a cellular wireless system, and a terminal transmits channel state information (CSI) wirelessly to a serving cell and to at least one cooperative cell such that the serving cell and the cooperative cell use the CSI to perform multipoint communication. Although the serving cell and the cooperative cell may be of different base stations from each other, the transmission delay and traffic increase in a backhaul network can be prevented by minimizing information exchange between these cells.