A wireless relay device that relays a signal between a base station and a mobile station , comprising: a transmission section configured to transmit a signal and an SRS to the base station using a backhaul subframe that is subframe for performing communication between the base station and the wireless relay device; a reception section configured to receive a signal and an SRS transmitted to the wireless relay device using an access link subframe that is a subframe for performing communication between the mobile station and the wireless relay device at a reception start timing of the access link subframe shifted before a transmission end timing of the backhaul subframe; a switching section configured to switch a transmission mode for performing transmission from the wireless relay device to the base station and a reception mode for performing reception from the mobile station ; and an SRS setting section configured to set a configuration of the SRS that the mobile station transmits to the wireless relay device, wherein if the transmission section transmits the SRS in a last symbol of a subframe immediately previous to the backhaul subframe, the SRS setting section sets a last symbol of the access link subframe as a fake symbol in which the SRS that the mobile station transmits to the wireless relay device is not configured, the reception section receives the signal transmitted from the mobile station to the wireless relay device in a symbol immediately previous to the fake symbol, and then the switching section switches from the reception mode to the transmission mode, and if the transmission section does not transmit the SRS in the last symbol of the subframe immediately previous to the backhaul subframe, the reception section receives the signal transmitted from the mobile station to the wireless relay device in the last symbol of the access link subframe, and then the switching section switches from the reception mode to the transmission mode. a transmission section configured to transmit a signal and an SRS to the base station using a backhaul subframe that is subframe for performing communication between the base station and the wireless relay device; a reception section configured to receive a signal and an SRS transmitted to the wireless relay device using an access link subframe that is a subframe for performing communication between the mobile station and the wireless relay device at a reception start timing of the access link subframe shifted before a transmission end timing of the backhaul subframe; a switching section configured to switch a transmission mode for performing transmission from the wireless relay device to the base station and a reception mode for performing reception from the mobile station ; and an SRS setting section configured to set a configuration of the SRS that the mobile station transmits to the wireless relay device, wherein if the transmission section transmits the SRS in a last symbol of a subframe immediately previous to the backhaul subframe, the SRS setting section sets a last symbol of the access link subframe as a fake symbol in which the SRS that the mobile station transmits to the wireless relay device is not configured, the reception section receives the signal transmitted from the mobile station to the wireless relay device in a symbol immediately previous to the fake symbol, and then the switching section switches from the reception mode to the transmission mode, and if the transmission section does not transmit the SRS in the last symbol of the subframe immediately previous to the backhaul subframe, the reception section receives the signal transmitted from the mobile station to the wireless relay device in the last symbol of the access link subframe, and then the switching section switches from the reception mode to the transmission mode. <EOS>