A method for performing uplink transmission in a wireless communication system, the method being performed by a user equipment and comprising: performing a first transmission that is a configured grant, CG, uplink transmission to a base station on a first resource, wherein the CG uplink transmission is a transmission performed on a resource pre-configured semi-statically by the base station; and performing a second transmission that is a scheduled uplink transmission to the base station on a second resource, characterized in that: when pre-configured conditions are satisfied, the second transmission is performed on the second resource immediately after a last symbol of the first resource, and when at least one of the pre-configured conditions is not satisfied, the first transmission is dropped before the second resource, wherein one of the pre-configured conditions is that: - a bandwidth part, BWP, that is a resource in a frequency domain allocated for the first transmission, is configured with a plurality of listen before talk, LBT, bandwidth subsets, and - a resource allocated for the second transmission occupies all resource blocks, RBs, included in at least one of the plurality of LBT bandwidth subsets. performing a first transmission that is a configured grant, CG, uplink transmission to a base station on a first resource, wherein the CG uplink transmission is a transmission performed on a resource pre-configured semi-statically by the base station; and performing a second transmission that is a scheduled uplink transmission to the base station on a second resource, characterized in that: when pre-configured conditions are satisfied, the second transmission is performed on the second resource immediately after a last symbol of the first resource, and when at least one of the pre-configured conditions is not satisfied, the first transmission is dropped before the second resource, wherein one of the pre-configured conditions is that: - a bandwidth part, BWP, that is a resource in a frequency domain allocated for the first transmission, is configured with a plurality of listen before talk, LBT, bandwidth subsets, and - a resource allocated for the second transmission occupies all resource blocks, RBs, included in at least one of the plurality of LBT bandwidth subsets. when pre-configured conditions are satisfied, the second transmission is performed on the second resource immediately after a last symbol of the first resource, and when at least one of the pre-configured conditions is not satisfied, the first transmission is dropped before the second resource, wherein one of the pre-configured conditions is that: - a bandwidth part, BWP, that is a resource in a frequency domain allocated for the first transmission, is configured with a plurality of listen before talk, LBT, bandwidth subsets, and - a resource allocated for the second transmission occupies all resource blocks, RBs, included in at least one of the plurality of LBT bandwidth subsets. - a bandwidth part, BWP, that is a resource in a frequency domain allocated for the first transmission, is configured with a plurality of listen before talk, LBT, bandwidth subsets, and - a resource allocated for the second transmission occupies all resource blocks, RBs, included in at least one of the plurality of LBT bandwidth subsets.