MULTI-ANTENNA TRANSMISSION METHOD UNDER CO-CELL NETWORK, AND BASE STATION

Embodiments of the present invention provide a multi-antenna transmission method in a co-cell network, and a base station, to improve a system throughput. The co-cell network includes a first cell and a second cell, the first cell is corresponding to two physical antennas, and the second cell is corresponding to two physical antennas. The method in the embodiments of the present invention includes: performing, by a base station, four-antenna precoding processing for a scheduled terminal, and generating four logical antenna port signals; and mapping, by the base station, the four logical antenna port signals to four physical antennas, and sending, to the terminal, signals obtained through mapping, where the four physical antennas are the two physical antennas corresponding to the first cell and the two physical antennas corresponding to the second cell.