A method performed by a terminal in a wireless communication system, the method comprising: receiving a higher-layer signal including information on a plurality of physical uplink control channel, PUCCH, resources; determining a PUCCH format and a resource for a hybrid automatic repeat request, HARQ, feedback information corresponding to a physical downlink shared channel, PDSCH; and transmitting the HARQ feedback information based on the determined PUCCH format and the resource, wherein in case: an Evolved universal mobile telecommunications system, UMTS, Terrestrial Radio Access, EUTRA, new radio, NR, - dual connectivity, EN-DC, is set in the terminal, a time division duplex, TDD, frame structure is set in a primary cell, PCell, of the terminal, a reference TDD configuration information is set in the terminal, wherein the reference TDD configuration information indicates a reference configuration for transmitting a long term evolution, LTE, uplink signal, and a downlink assignment index, DAI, field value of a DCI format corresponding to the PDSCH is set in 1, the PUCCH format uses a preset format which is a PUCCH format 3 and the resource corresponds to a first PUCCH resource among the plurality of PUCCH resources mapped to a transmission power control, TPC, command field. receiving a higher-layer signal including information on a plurality of physical uplink control channel, PUCCH, resources; determining a PUCCH format and a resource for a hybrid automatic repeat request, HARQ, feedback information corresponding to a physical downlink shared channel, PDSCH; and transmitting the HARQ feedback information based on the determined PUCCH format and the resource, wherein in case: an Evolved universal mobile telecommunications system, UMTS, Terrestrial Radio Access, EUTRA, new radio, NR, - dual connectivity, EN-DC, is set in the terminal, a time division duplex, TDD, frame structure is set in a primary cell, PCell, of the terminal, a reference TDD configuration information is set in the terminal, wherein the reference TDD configuration information indicates a reference configuration for transmitting a long term evolution, LTE, uplink signal, and a downlink assignment index, DAI, field value of a DCI format corresponding to the PDSCH is set in 1, the PUCCH format uses a preset format which is a PUCCH format 3 and the resource corresponds to a first PUCCH resource among the plurality of PUCCH resources mapped to a transmission power control, TPC, command field. an Evolved universal mobile telecommunications system, UMTS, Terrestrial Radio Access, EUTRA, new radio, NR, - dual connectivity, EN-DC, is set in the terminal, a time division duplex, TDD, frame structure is set in a primary cell, PCell, of the terminal, a reference TDD configuration information is set in the terminal, wherein the reference TDD configuration information indicates a reference configuration for transmitting a long term evolution, LTE, uplink signal, and a downlink assignment index, DAI, field value of a DCI format corresponding to the PDSCH is set in 1, the PUCCH format uses a preset format which is a PUCCH format 3 and the resource corresponds to a first PUCCH resource among the plurality of PUCCH resources mapped to a transmission power control, TPC, command field. <EOS>