METHOD AND APPARATUS FOR TRANSMITTING BY USING MULTIPLE ANTENNA TRANSMISSION TECHNIQUES COMBINED BEAM FORMING, MIMO AND DIVERSITY

摘要

A transmitting method using a beamforming/MIMO(Multi-Input Multi-Output)/diversity combined multi-antenna transmission technique and an apparatus thereof are provided to enable a base station to transmit a data channel signal to a mobile terminal by simply combining MIMO, diversity, and beamforming and to enable the mobile terminal to easily select a multi-antenna transmission mode according to channel conditions. A base station transmission device for transmitting a downlink signal to a mobile terminal by using a multi-antenna transmission technique comprises a data channel creation part(210), a transmission mode selection part(220), a combiner(230), and a plurality of antennas(140-170). The data channel creation part(210) creates a data channel signal to be transmitted to the mobile terminal. The transmission mode selection part(220) receives a feedback signal for the downlink signal from the mobile terminal and determines a multi-antenna transmission mode to be used for the transmission of the downlink signal using the feedback signal. The combiner(230) combines the data channel signal, a common pilot signal, and a control signal, and creates the downlink signal. The antennas(140-170) output the downlink signal, transferred from the combiner(230), using a preset transmission angle.