Inter-cell interference mitigation method

In the interference mitigation between cells, and grouping the plurality of terminals into a plurality of groups. The first terminal base station belonging to the first group of the plurality of groups and transmits data without cooperation with the neighboring base station. And the base station transmits data through the second terminal, the collaboration with the neighboring base station belonging to the second group of the plurality of groups. Interference mitigation, network MIMO, FFR, Cooperation