Also the disturbance for the down link connection of the cellular mobile radio network which has the adaptive antenna method and the communication system which presume variation

摘要

(57) Abstract As for this invention it regards the data transmission method in the radio communication system. In this case, two or network side base station (BS and BSn) above that and plural another radio stations (MS and MSn) are provided, these another radio stations (MS and MSn) one of the respective base stations (BS and BSn) and through radio interface (V1, V2 and Vn), establish connection. Inside base station (BS) at least 1st base station, depending on direction, has had antenna array and the signal processing device which have the plural antenna elements in order sending and receiving to do the data. This 1st base station (BS) to the radio station (MS) which has established this base station and connection, to be piled up with the data transmission to one which has established this unknown base station and connection from unknown base station (BSn) unknown radio station (MSn) at least timewise, transmits the data, data transmission from of this 1st base station (BS) is received depending upon unknown radio station (MSn). Unknown radio station (MSn) with down link with the transmission of base station (BS) with the purpose which almost it tries not to receive disturbance, with direction of unknown radio station (MSn), the training signal of the transmission signal of this unknown radio station (MSn) is transmitted the transmission electric power of the antenna array in base station (BS) and matches to this unknown radio station (MSn) ke ru thing can after the training signal which is received decreases.