METHOD AND APPARATUS FOR DETERMINING RELAY UE FOR CONSTRAINED UE

The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. According to an embodiment, a method performed by a first user equipment (UE) which is a constrained UE in a wireless communication system is provided. The method comprises transmitting, to a plurality of UEs, a first message for requesting a relay configuration for the first UE, receiving, from at least one UE with a relay capability among the plurality of UEs, a second message as a response to the first message, the second message comprising information on the relay configuration, and identifying a second UE for a relay service among the at least one UE with the relay capability based on the information on a maximum allowed packet size of the second UE.