Operating method of ue related to rrc reconfiguration in multi-path relay operation in wireless communication system

A remote user equipment (UE) 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 storing instructions that, when executed, cause the at least one processor to perform operations,
• wherein the operations include:
• establishing a radio resource control (RRC) connection with a base station (BS);
• establishing a PC5 RRC connection with a relay UE;
• transmitting data to the BS through at least one of a direct path or an indirect path;
• detecting radio link failure (RLF);
• and
• reporting the RLF to the BS, and
• wherein based on the RLF occurring on the indirect path, the remote UE reports to the BS an ID of at least one candidate relay UE and a measurement result for the at least one candidate relay UE, together with the RLF report.

A non-volatile computer-readable storage medium storing at least one computer program including instructions that, when executed by at least one processor, cause the at least one processor to perform operations for a UE,

• wherein the operations include:
• establishing a radio resource control (RRC) connection with a base station (BS);
• establishing a PC5 RRC connection with a relay UE;
• transmitting data to the BS through at least one of a direct path or an indirect path;
• detecting radio link failure (RLF);
• and
• reporting the RLF to the BS, and
• wherein based on the RLF occurring on the indirect path, the remote UE reports to the BS an ID of at least one candidate relay UE and a measurement result for the at least one candidate relay UE, together with the RLF report.