Patent ID: 10498497

Abstract:
The present invention relates to a method and an apparatus for transmitting a signal in a wireless communication system. A physical downlink control channel (PDCCH) is received that has a downlink assignment index (DAI) and DAI group indication information within a subframe (SF) #n-k. A hybrid automatic repeat request acknowledgement (HARQ-ACK) payload is configured by using the DAI and the DAI group indication information. The HARQ-ACK payload is transmitted from an SF #n. A value of the DAI includes a scheduling order value in a cell/SF unit associated with the PDCCH in the SF #n−k. The scheduling order value in a cell/SF unit is counted in a cell-priority manner in a cell/SF domain. The DAI group indication information includes whether the PDCCH is related to a last DAI group, and one DAI group consists of a plurality of consecutive DAI values.