Method and apparatus for operation of tx ue related to changing of resource allocation mode in sidelink drx and reporting of related information to base station in wireless communication system

TX UE device in a wireless communication system, comprising:

• at least one processor;
• and
• at least one computer memory operatively connected to the at least one processor and configured to store instructions that cause the at least one processor to perform operations when being executed, the operations including:
• establishing PC5 connection with an RX UE by the TX UE;
• and
• transmitting an SL signal to the RX UE based on the resource by the TX UE,
• wherein based on the TX UE being in a state in which a BS determines the SL signal transmission resource, the TX UE reports as SL assistant information received from the RX UE to the BS.

A non-transitory computer-readable storage medium storing at least one computer program including instructions which, when executed by at least one processor, cause the at least one processor to perform operations for a first user equipment (UE),

• wherein the operations include
• establishing PC5 connection with an RX UE by the TX UE;
• and
• transmitting an SL signal to the RX UE based on the resource by the TX UE,
• wherein based on the TX UE being in a state in which a BS determines the SL signal transmission resource, the TX UE reports information related to the SL DRX configuration and SL assistant information received from the RX UE to the BS.