Patent ID: 7289470

Claim:
A method for controlling a mobile communications system, comprising: communicating between a mobile station and a first base station, wherein the first base station is operating at a first antenna specific weight factor; and transmitting, while the mobile station is in a coverage area of the first base station and a coverage area of a second base station, a control signal from the mobile station to the second base station which causes the second base station to operate at a second antenna specific weight factor which is the same as the first antenna specific weight factor, communicating between the mobile station and the second base station, wherein the second base station is operating at the second antenna specific weight factor, the first base station generating a first transmission signal and a second transmission signal using the first antenna specific weight factor, and transmitting the first and second transmission signals to the mobile station, the mobile station selecting one of the first and second transmission signals according to respective signal qualities thereof, and communicating with the first base station using the selected first or second transmission signal, the first base station generating a first calculation result using a data sequence to be sent and a pilot symbol, and generating the first transmission signal using the first calculation result and the first antenna specific weight factor, and the first base station generating a second calculation result using the data sequence to be sent and a reversed pilot symbol, and generating the second transmission signal using the second calculation result and the first antenna specific weight factor.