Method and device for providing direct communication in wireless communication system

Abstract

According to an embodiment of the disclosure, an operating method of a first proximity-based services (ProSe) function belonging to a first public land mobile network (PLMN) includes: receiving a first ProSe Communication Create Request message from an application function (AF), a network exposure function (NEF) belonging to the first PLMN, or a first user equipment (UE) subscribed to the first PLMN; determining whether to perform inter-PLMN communication between the first UE and a second UE subscribed to a second PLMN, the second PLMN being different from the first PLMN; transmitting, to a second ProSe function belonging to the second PLMN, a ProSe Provisioning Request message including first radio resource information for direct communication by the first UE; receiving, from the second ProSe function, a ProSe Provisioning Response message including second radio resource information for direct communication by the second UE; and transmitting, to the first UE, the first ProSe Communication Create Request message including inter-PLMN communication information for direct communication with the second UE.