Method for performing transfer of collaborative session control in wireless communication system based on internet protocol multimedia subsystem

摘要

A method for performing an inter-user equipment (UE) transfer (IUT) of a collaborative session. The method according to one embodiment is performed by a UE and includes transmitting a subscription message to a network element for requesting notification of information regarding at least one or more other UEs; receiving a subscription acceptance message in response to the subscription message; and receiving a notification message. The notification message includes the information regarding the at least one or more other UEs and a controller UE capability of controlling the collaborative session. The method according to the embodiment further includes performing a process of transferring control with respect to the collaborative session established with a remote party to a specific UE, which is checked as capable of being a controller UE based on the received information, without transferring the collaborative session to the specific UE.