identifying, based on a capability of the UE or an instruction of an application provider in the communication system, whether the UE or an application server generates information on live geometry corresponding to a virtual three-dimension (3D) space in which the UE is positioned;

generating ambient environment information including at least one piece of information obtained based on an ambient environment of the UE;

establishing a session for receiving an AR service description from the application server;

receiving, from the application server, the AR service description including pipeline information indicating a transmission path related to the AR service and result information for at least one process requested by the UE; and

transmitting, to the application server, the ambient environment information and receiving, from the application server, at least one media segment of an AR content based on the ambient environment information,

wherein the ambient environment information includes the information on the live geometry in case that the UE generate the information on the live geometry, and

wherein the AR service description includes the information on the live geometry in case that the application server generates the information on the live geometry.