Patent ID: 9578568
Date: 2017-02-21
CPC Classifications: H04L,H04W

Claim:
1. A method of Inter-User Equipment (UE) Transfer (IUT) for use in an Internet Protocol (IP) Multimedia Subsystem (IMS) capable wireless transmit/receive unit (WTRU), the method comprising: receiving, at the IMS capable WTRU, an IUT session transfer command from a non-IMS capable WTRU via non-IMS signaling, wherein the received IUT session transfer command requests an IUT to transition an IMS session that is initially between the IMS capable WTRU and a remote party to thereafter be between the non-IMS capable WTRU and the remote party, wherein the IMS capable WTRU client interfaces between the IMS network and the non-IMS capable WTRU, wherein the IMS session has a controller, wherein the IMS capable WTRU is the controller of the IMS session; translating, at the IMS capable WTRU, the IUT session transfer command to an IMS based message; transmitting, from the IMS capable WTRU, the translated IMS based message to a Service Centralization and Continuity Application Server (SCC AS): receiving, from the non-IMS capable WTRU, a release media request to release a particular media flow of the IMS session; releasing, at the IMS capable WTRU, the particular media flow of the IMS session; and transmitting, via the SCC AS, a release-media-acknowledgement message regarding the particular media flow from the IMS capable WTRU to the non-IMS capable WTRU.