Relay station, base station, transmission method, and reception method

摘要

Relay station (200) in a communication system using PCells and Scells for backhaul communication, and configuring DL BHSFs of the PCell, and UL BHSFs of the PCell located after a prescribed number of subframes after a DL BHSF includes: ACK/NACK generator (203) generating a response signal for a downlink signal received in PCell and SCells from base station (100); transmitter (205) transmitting a response signal in response to a downlink signal received in an SCell in a DL BHSF configured at a timing different from that of the DL BHSF of the PCell, the response signal in UL BHSFs of the SCell a prescribed number of subframes after the DL BHSF, and a response signal for a downlink signal received in an SCell in a DL BHSF having the same timing as that of the DL BHSF of the PCell, and the response in a UL BHSF of the PCell.

主权项

1. A relay station used in a communication system configured to use a first component carrier (CC) and a second CC for backhaul communication between a base station and the relay station and to configure a downlink backhaul subframe (DL BHSF) used for backhaul communication in downlink and an uplink backhaul subframe (UL BHSF) used for backhaul communication in uplink, the UL BHSF being a subframe located after a predetermined number of subframes from the DL BHSF, the relay station comprising:
a generating section that generates a response signal for a downlink signal received using each of the first CC and the second CC from the base station; and a transmitting section that transmits the response signal to the base station, wherein: the DL BHSF of the first CC and the DL BHSF of the second CC are configured independently; the UL BHSF of the second CC is configured after the predetermined number of subframes from the DL BHSF of the second CC that is configured at a timing different from that of the DL BHSF of the first CC, and the UL BHSF of the second CC is not configured after the predetermined number of subframes from the DL BHSF of the second CC that is configured at a timing identical to that of the DL BHSF of the first CC; the transmitting section transmits, in the UL BHSF of the second CC, a first response signal for a downlink signal received using the DL BHSF of the second CC that is configured at the timing different from that of the DL BHSF of the first CC; and the transmitting section transmits, in the UL BHSF of the first CC, a second response signal for a downlink signal received using the DL BHSF of the second CC that is configured at the timing identical to that of the DL BHSF of the first CC.