| 摘要 |
A method and an apparatus for transmitting HARQ ACK/NACK are provided. The present specification discloses a terminal comprising: a receiving unit for receiving a physical downlink shared channel (PDSCH) and a physical downlink control channel (PDCCH) indicating the PDSCH; a terminal processor for generating HARQ-ACK indicating one of ACK/NACK/discontinuous transmission (DTX) for PDSCH of each downlink subframe and for mapping a first combination of HARQ-ACKs and a second combination of HARQ-ACKs to a predetermined resource index and a modulation symbol; and a transmission unit for transmitting HARQ ACK/NACK using the resource index and the modulation symbol in an uplink subframe associated with the at least one downlink subframe. |
