Patent ID: 8649317

Claim:
A wireless communication relay station apparatus for relaying communication between a first wireless communication apparatus and a second wireless communication apparatus in at least two or more frequency bands, the wireless communication relay station apparatus comprising: a transmitter which is configured, in a first subframe, to transmit a first uplink signal to the first wireless communication apparatus in a first frequency band, and to transmit a first downlink signal to the second wireless communication apparatus in a second frequency band; and a receiver which is configured, in a second subframe, to receive a second downlink signal from the first wireless communication apparatus in the first frequency band, and to receive a second uplink signal from the second wireless communication apparatus in the second frequency band; an uplink timing setter which is configured to set a transmission timing for the first uplink signal in the first subframe in accordance with a transmission delay amount between the wireless communication relay station apparatus and the first wireless communication apparatus; and the transmitter is configured, at the set transmission timing, to transmit the first uplink signal to the first wireless communication apparatus in the first frequency band, and to transmit the first downlink signal to the second wireless communication apparatus in the second frequency band; wherein the uplink timing setter is configured to set the transmission timing so as to increase a symbol number in accordance with an increase in the transmission delay amount between the wireless communication relay station apparatus and the first wireless communication apparatus, the symbol number indicating a position at which the transmission to the first wireless communication apparatus in the first subframe is to be started.