Patent ID: 8811316

Claim:
A method of communicating in a multiple input multiple output communication system, comprising: determining to perform multi-cell multiple input multiple output collaboration by at least a first base station and a second base station; acquiring determined downlink transmission control information of the first base station by the second base station, wherein the determined downlink transmission control information comprises indication information of at least one determined mobile terminal in a cell in which the first base station is located; selecting collaborative mobile terminal(s) according to the downlink transmission control information of the first base station by the second base station by constructing a combined downlink pre-coding matrix for each of at least one mobile terminal in a cell to which the second base station pertains according to the determined downlink transmission control information of the first base station, and based on a first predetermined rule, wherein a downlink pre-coding matrix between the first base station and the at least one determined mobile terminal is a submatrix of the combined downlink pre-coding matrix and, based on a second predetermined rule, selecting the collaborative mobile terminal(s) from the at least one mobile terminal; transmitting downlink data and downlink transmission control information of the selected collaborative mobile terminal(s) to the first base station by the second base station; and adjusting downlink data transmission from the first base station to the at least one determined mobile terminal according to the downlink data and the downlink transmission control information of the collaborative mobile terminal(s) by the first base station.