Study on telepresence using the IP Multimedia (IM) Core Network (CN) Subsystem (IMS); Stage 3
The present document contains the study on Telepresence using IP Multimedia (IM) Core Network (CN) subsystem based on the Session Initiation Protocol (SIP), Session Description Protocol (SDP) and other protocols of controlling multiple streams for Telepresence based on service requirements.
The study aims, within the defined CT1 work areas, at:
- analysing IMS session procedures and signalling between the UE and core network for Telepresence creation, establishment with media negotiation and configuration, session modification and termination, with the incorporation of new protocol (i.e. CLUE as under developing in IETF);
- investigating impacts for presentation in Telepresence and floor control in IMS;
- analysing similar impacts to allow legacy devices interworked with Telepresence using IMS; and
- studying potential enhancements and extensions to facilitate these procedures.
This study will identify specification areas, if any, that lie within the scope of other 3GPP working groups, and seek input from those 3GPP working groups to define that related specification work.