BASE STATION DEVICE, RADIO COMMUNICATION METHOD, AND RADIO COMMUNICATION SYSTEM

摘要

PROBLEM TO BE SOLVED: To improve frequency use efficiency by improving synchronization accuracy of a phase when a plurality of signals are combined in a device on a receiving side.SOLUTION: A base station device includes: a channel information acquisition section for acquiring channel information of respective frequency components in up-link between an antenna and a terminal device for each antenna; a transmitting/receiving weight calculating section for calculating and storing a receiving weight for spatial multiplex transmission in each frequency components for each antenna element on the basis of the acquired channel information; a scheduling processing section for deciding a combination of terminal units for performing spatial multiplex; and a receiving section for separating a received signal received from the terminal device through the antenna elements for each antenna elements and for each frequency components, for multiplying the received signal separated for each frequency components by the receiving weight corresponding to the combination of terminal units for performing spatial multiplex on same frequency component at same time, and for performing reception processing on the basis of the signal obtained from the multiplication.