Inter-user equipment (ue) transfer (iut) for collaborative sessions that include media session information

Abstract

A method and apparatus for inter-user equipment (UE) transfer (IUT) of collaborative session control and session information between WTRUs. A collaborative session control transfer request including ongoing session information is transmitted prior to transfer of session control from one WTRU to another WTRU. Ongoing session information may include information regarding media flows and devices involved in the session. A media control transfer response is transmitted in response to the transfer request.

What is claimed is: 
     
         1 . A wireless transmit/receive unit (WTRU) for inter-user equipment (UE) transfer (IUT) of collaborative session control comprising:
 a receiver configured to receive a collaborative session control transfer request message from a Service Centralization and Continuity Application Server (SCC AS) that includes session information associated with a first collaborative session, the session information at least including a list of public user identities that share the service profile with the public user identity used by a first UE;   a processor configured to determine whether to accept collaborative session control; and   a transmitter configured to transmit a collaborative session control transfer response message to the SCC AS, on a condition that a second UE shares the service profile with the public user identity used by the first UE, on a condition the collaborative session control is accepted.   
     
     
         2 . The WTRU of  claim 1 , wherein the session information associated with the first collaborative session includes information about one or more media flows of the collaborative session. 
     
     
         3 . A method for a Service Centralization and Continuity Application Server (SCC AS) for inter-device transfer (IDT) of collaborative session control, the method comprising:
 receiving from a first UE, a collaborative session control transfer request message associated with a first collaborative session;   generating session information associated with the first collaborative session, the session information at least including a list of public user identities that share the service profile with the public user identity used by the first UE; and   transmitting to a second UE, on a condition that the second UE shares the service profile with the public user identity used by the first UE, the collaborative session control transfer request message that includes the session information associated with the first collaborative session;   wherein a collaborative session control transfer response message is received from the second UE.   
     
     
         4 . The method of  claim 3 , wherein the session information includes information about one or more media flows of the collaborative session. 
     
     
         5 . A method of a wireless transmit/receive unit (WTRU) for inter-user equipment (UE) transfer (IUT) of collaborative session control, the method comprising:
 receiving a collaborative session control transfer request message that includes session information associated with a first collaborative session, the session information at least including a list of public user identities that share the service profile with the public user identity used by a first UE; and   determining whether to accept collaborative session control;   wherein, on a condition the collaborative session control is accepted, transmitting a collaborative session control transfer response message on a condition that a second UE shares the service profile with the public user identity used by the first UE,   
     
     
         6 . The method of  claim 5 , wherein the session information associated with the first collaborative session includes information about one or more media flows of the collaborative session.