Method for selecting, in selection period, subframe excluding subframe relating to subframe in which transmission has been performed during sensing period in wireless communication system, and terminal using same

A User Equipment (UE) configured to perform a sidelink operation in a wireless communication system, the UE comprising:

• a transceiver;
• at least one processor;
• and
• at least one computer memory operably connectable to the at least one processor and storing instructions that, when executed by the at least one processor, perform operations comprising:
• determining a sidelink resource set based on a candidate resource set and a candidate resource,
• wherein the candidate resource is excluded from the candidate resource set,
• wherein a time unit index of the candidate resource is determined based on a time unit index of a specific time unit in which the sidelink operation is performed within a sensing window of the UE;
• and
• performing the sidelink operation based on the sidelink resource set,
• wherein a first time unit index is spaced apart from the time unit index of the candidate resource by a multiple of a value related to a resource reservation period of the UE,
• wherein a second time unit index is spaced apart from the time unit index of the specific time unit by a multiple of a value related to a resource reservation period related parameter received by the UE, and
• wherein the first time unit index overlaps with the second time unit index.

An apparatus configured to control a User Equipment (UE) to perform a sidelink operation in a wireless communication system, the apparatus comprising:

• at least one processor;
• and
• at least one computer memory operably connectable to the at least one processor and storing instructions that, when executed by the at least one processor, perform operations comprising:
• determining a sidelink resource set based on a candidate resource set and a candidate resource,
• wherein the candidate resource is excluded from the candidate resource set,
• wherein a time unit index of the candidate resource is determined based on a time unit index of a specific time unit in which the sidelink operation is performed within a sensing window of the UE;
• and
• performing the sidelink operation based on the sidelink resource set,
• wherein a first time unit index is spaced apart from the time unit index of the candidate resource by a multiple of a value related to a resource reservation period of the UE,
• wherein a second time unit index is spaced apart from the time unit index of the specific time unit by a multiple of a value related to a resource reservation period related parameter received by the UE, and
• wherein the first time unit index overlaps with the second time unit index.