A radio communication system comprising a remote radio head (20-1, 20-2) and a base band unit that function as a base station, the remote radio head comprising: a channel estimation unit (202-1, 202-2) that, on the basis of a radio signal transmitted from a terminal apparatus, estimates channel information relating to a radio transmission path between the remote radio head and the terminal apparatus; and a demodulation unit (203-1, 203-2) that performs soft-decision demodulation of the radio signal on the basis of the channel information estimated by the channel estimation unit, the radio communication system being characterized in that the remote radio head further comprises: a signal switching unit (204-1, 204-2) that switches an output destination of a log likelihood ratio obtained by the soft-decision modulation to a first path passing through a decoding unit (205-1, 205-2) that decodes the log likelihood ratio into a hard decision value when base station cooperation is not to be performed on the terminal apparatus that transmitted the radio signal or a second path not passing through the decoding unit when base station cooperation is to be performed on the terminal apparatus that transmitted the radio signal; and a transmission unit (206-1, 206-2) that transmits a signal output from the first path or the second path to the base band unit. a channel estimation unit (202-1, 202-2) that, on the basis of a radio signal transmitted from a terminal apparatus, estimates channel information relating to a radio transmission path between the remote radio head and the terminal apparatus; and a demodulation unit (203-1, 203-2) that performs soft-decision demodulation of the radio signal on the basis of the channel information estimated by the channel estimation unit, the radio communication system being characterized in that the remote radio head further comprises: a signal switching unit (204-1, 204-2) that switches an output destination of a log likelihood ratio obtained by the soft-decision modulation to a first path passing through a decoding unit (205-1, 205-2) that decodes the log likelihood ratio into a hard decision value when base station cooperation is not to be performed on the terminal apparatus that transmitted the radio signal or a second path not passing through the decoding unit when base station cooperation is to be performed on the terminal apparatus that transmitted the radio signal; and a transmission unit (206-1, 206-2) that transmits a signal output from the first path or the second path to the base band unit. a signal switching unit (204-1, 204-2) that switches an output destination of a log likelihood ratio obtained by the soft-decision modulation to a first path passing through a decoding unit (205-1, 205-2) that decodes the log likelihood ratio into a hard decision value when base station cooperation is not to be performed on the terminal apparatus that transmitted the radio signal or a second path not passing through the decoding unit when base station cooperation is to be performed on the terminal apparatus that transmitted the radio signal; and a transmission unit (206-1, 206-2) that transmits a signal output from the first path or the second path to the base band unit.