TERMINAL DEVICE, BASE STATION DEVICE AND RADIO COMMUNICATION SYSTEM USING THEM

摘要

PROBLEM TO BE SOLVED: To make it possible to adequately synthesize signals received at entire antennas to enable an excellent reception property to be obtained, when THP MU-MIMO transmission targeting a virtual reception antenna formed based on a plurality of the reception antennas included by respective terminals is performed.

SOLUTION: A terminal device 200 generates propagation path information of a virtual reception antenna, the number of which is less than the number of reception antennas, based on propagation path information observed at a plurality of the reception antennas and feeds it back as CSI to a base station device. The base station device performs THP MU-MIMO transmission based on the CSI. The terminal device 200 obtains a desired signal by MMSE synthesizing between the signals transmitted in this way and the signals received at a plurality of the reception antennas.

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