Method and apparatus for performing relay communication in a wireless communication system

At least one non-transitory computer-readable storage medium comprising instructions that, when executed by at least one processor, cause the at least one processor to perform operations, the operations comprising:

• establishing a first connection with a base station (BS) for user equipment-to-network (U2N) relay;
• establishing a second connection with a first relay user equipment (UE) for the U2N relay;
• receiving, through the first connection, a first message comprising a measurement reporting configuration;
• and
• based on a first local identifier (ID), assigned for identifying a remote UE in relation to the first connection, being further included in the first message, transmitting, through the second connection, a second message for configuring measurement reporting for the first relay UE based on the measurement reporting configuration.

A user equipment (UE) comprising:

• a radio frequency (RF) transceiver;
• and
• a processor connected to the RF transceiver,
• wherein the processor is configured to control the RF transceiver to:
• establish a first connection with a base station (BS) for UE-to-network (U2N) relay;
• establish a second connection with a first relay UE for the U2N relay;
• receive, through the first connection, a first message comprising a measurement reporting configuration;
• and
• based on a first local identifier (ID), assigned for identifying a remote UE in relation to the first connection, being further included in the first message, transmit, through the second connection, a second message for configuring measurement reporting for the first relay UE based on the measurement reporting configuration.

A processing device configured to control a user equipment (UE), the processing device comprising:

• at least one processor;
• and
• at least one memory connected to the at least one processor and configured to store instructions that, when executed by the at least one processor, cause the UE to:
• establish a first connection with a base station (BS) for UE-to-network (U2N) relay;
• establish a second connection with a first relay UE for the U2N relay;
• receive, through the first connection, a first message comprising a measurement reporting configuration;
• and
• based on a first local identifier (ID), assigned for identifying a remote UE in relation to the first connection, being further included in the first message, transmit, through the second connection, a second message for configuring measurement reporting for the first relay UE based on the measurement reporting configuration.

A method performed by a first relay user equipment (UE), the method comprising:

• establishing a second connection with a UE for UE-to-network (U2N) relay;
• establishing a third connection with a second relay UE for the U2N relay;
• receiving, through the second connection, a second message for configuring measurement reporting associated with the first relay UE;
• and
• based on inclusion of a second local identifier (ID) assigned for identifying a remote UE in relation to the second connection, transmitting, through the third connection, a third message for configuring measurement reporting for the second relay UE based on the second message.

A first relay user equipment (UE) comprising:

• a radio frequency (RF) transceiver;
• and
• a processor connected to the RF transceiver,
• wherein the processor is configured to control the RF transceiver to:
• establish a second connection with a UE for UE-to-network (U2N) relay;
• establish a third connection with a second relay UE for the U2N relay;
• receive, through the second connection, a second message for configuring measurement reporting associated with the first relay UE;
• and
• based on inclusion of a second local identifier (ID) assigned for identifying a remote UE in relation to the second connection, transmit, through the third connection, a third message for configuring measurement reporting for the second relay UE based on the second message.