3 Definitions, symbols and abbreviations

24.1033GPPRelease 17Stage 3Telepresence using the IP Multimedia (IM) Core Network (CN) Subsystem (IMS)TS

3.1 Definitions

For the purposes of the present document, the terms and definitions given in 3GPP TR 21.905 [1] and the following apply. A term defined in the present document takes precedence over the definition of the same term, if any, in 3GPP TR 21.905 [1].

IM session: An IP multimedia (IM) session is a set of multimedia senders and receivers and the data streams flowing from senders to receivers. IP multimedia sessions are supported by the IP multimedia CN Subsystem and are enabled by IP connectivity bearers (e.g. GPRS as a bearer). A user may invoke concurrent IP multimedia sessions.

Telepresence: A conference with interactive audio-visual communications experience between remote locations, where the users enjoy a strong sense of realism and presence between all participants by optimizing a variety of attributes such as audio and video quality, eye contact, body language, spatial audio, coordinated environments and natural image size.

3.2 Symbols

3.3 Abbreviations

For the purposes of the present document, the abbreviations given in 3GPP TR 21.905 [1] and the following apply. An abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in 3GPP TR 21.905 [1].

AS Application Server

BFCP Binary Floor Control Protocol

CLUE ControLling mUltiple streams for tElepresence

DTLS Datagram Transport Layer Security

IMS IP Multimedia CN subsystem

MCC Multiple Content Capture

MRF Multimedia Resource Function

MRFC Multimedia Resource Function Controller

MRFP Multimedia Resource Function Processor

SCTP Stream Control Transmission Protocol

SDP Session Description Protocol

SIP Session Initiation Protocol

TP TelePresence

TP UE TelePresence User Equipment

UE User Equipment