The invention provides a method and a device for controlling one main
base station and one or more cooperative base stations to cooperatively communicate with a user terminal on downlink data in a
wireless communication
system adopting
cooperative MIMO technology. The technical scheme of multi-
base station cooperative MIMO provided by the invention is as follows:
MIMO downlink channel information from the main
base station and the cooperative base stations to the user terminal is acquired, and further the downlink
signal pre-coding information from the main base
station and the cooperative base stations to the user terminal, and the main base
station and the cooperative base stations are cooperatively communicated with the user terminal on
MIMO downlink data according to the downlink
signal pre-coding information. The technical scheme is applicable to a communication mode which has unequal uplink and downlink, such as an FDD and the like, has lower signaling and feedback overhead, expands the
cell coverage and communication capacity of
cell-edge users, reduces the interferences from adjacent cells, has smaller flyback information bandwidth, extends the functions of the prior single user
MIMO and multiuser MIMO which are based on the single base
station and causes little change on the prior technology and network and is easy to be standardized.