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

摘要

PROBLEM TO BE SOLVED: To provide a radio communication system capable of removing a transmission signal to another terminal device performing simultaneous connection causing an interference signal when performing a radio communication using space division multi-access connection.

SOLUTION: A base station device 1 reports separate data transmission to a terminal device MSmsimultaneously connected and reports information on a transmission beam 4 used in another terminal device simultaneously connected and signal power normalized in the terminal device MSmto be used in the other terminal device. According to the information reported, each terminal device MSmcalculates an interference removal weight by the MMSE (minimum error square) rule by using SINR as weight for maximization and multiplies the reception signal by the obtained interference removal weight, thereby reducing the interference component. After this, according to the information on the signal point layout to be transmitted, most likelihood estimation is performed to receive the signal subjected to space-multiplex-transmitted.

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