Method and device for performing uplink/downlink transmission in wireless communication system

A user equipment for use in a wireless communication system, the user equipment comprising:

• a communication module;
• and
• a processor that controls the communication module,
• wherein the processor is configured to:
• perform a first transmission that is a configured grant (CG) uplink transmission on a first resource,
• wherein the CG uplink transmission is a transmission performed on a resource pre-configured semi-statically,
• wherein the first resource is configured with a plurality of Listen Before Talk (LBT) bandwidth subsets,
• perform a second transmission that is a scheduled uplink transmission on a second resource,
• when conditions are satisfied, the second transmission is performed on the second resource immediately after a last symbol for the first transmission,
• when the conditions are not satisfied, the first transmission is dropped before a start point of the second resource,
• wherein the conditions include the following:
• when the second resource occupies all resource blocks (RBs) included in a LBT bandwidth subset among the plurality of LBT bandwidth subsets, the second transmission is performed on the second resource immediately after the last symbol for the first transmission, and
• when the second resource does not occupy the all RBs included in the LBT bandwidth subset among the plurality of LBT bandwidth subsets, the first transmission is dropped before the start point of the second resource.

A method for use by a base station in a wireless communication system, the method comprising:

• receiving a first transmission that is a configured grant (CG) uplink transmission transmitted on a first resource,
• wherein the CG uplink transmission is transmission performed on a semi-statically pre-configured resource,
• wherein the first resource is configured with a plurality of Listen Before Talk (LBT) bandwidth subsets;
• receiving a second transmission that is a scheduled uplink transmission transmitted on a second resource,
• when conditions are satisfied, the second transmission is performed on the second resource immediately after a last symbol for the first transmission, and
• when the conditions are not satisfied, the first transmission is dropped before a start point of the second resource,
• wherein the conditions include the following:
• when the second resource occupies all resource blocks (RBs) included in a LBT bandwidth subset among the plurality of LBT bandwidth subsets, the second transmission is performed on the second resource immediately after the last symbol for the first transmission,
• when the second resource does not occupy the all RBs included in the LBT bandwidth subset among the plurality of LBT bandwidth subsets, the first transmission is dropped before the start point of the second resource.