Abstract: A terminal and a method performed by the terminal in a wireless communication system are provided. The method includes receiving a RRC message including information related to a SPS HARQ deferral, performing at least one of multiplexing or prioritization among a first PUCCH and one or more uplink channels when the first PUCCH overlaps with the one or more uplink channels, identifying a PUCCH resource for a PUCCH transmission with HARQ-ACK information for SPS PDSCH receptions based on a result of performing at least one of the multiplexing or the prioritization in a first slot, determining a second slot based on the RRC message, when the PUCCH resource overlaps with at least one of a downlink symbol, an SS/PBCH block or a CORESET0, and transmitting the HARQ-ACK information for the SPS PDSCH receptions in the second slot.