3 Definitions, symbols and abbreviations
23.2813GPPFunctional architecture and information flows to support Mission Critical Video (MCVideo)Release 18Stage 2TS
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].
MCVideo client: An instance of an MC service client that provides the client application function for the MCVideo service.
MCVideo group: An MC service group configured for MCVideo service.
MCVideo group affiliation: An MC service group affiliation for MCVideo.
MCVideo group de-affiliation: An MC service group de-affiliation for MCVideo.
MCVideo group home system: The mission critical system where the MCVideo group is defined.
MCVideo group host server: The MCVideo server within a mission critical system which provides centralised support for MCVideo services of an MCVideo group defined in a MCVideo group home system.
MCVideo ID: An instance of an MC service ID within the MCVideo service.
MCVideo server: An instance of an MC service server that provides the server application function for the MCVideo service.
MCVideo service: A video communication service supporting applications for mission critical organizations and mission critical applications for other businesses and organizations (e.g., utilities, railways) with strong security, high availability, reliability and priority handling.
MCVideo system: The collection of applications, services, and enabling capabilities required to provide Mission Critical video for a Mission Critical Organization.
MCVideo UE: An MC service UE that can be used to participate in MCVideo services.
MCVideo user: An MC service user who is authorized for MCVideo services via an MCVideo UE.
Transmission control: Video transmitting control mechanism in an MCVideo service that determines which participants have the authority to transmit video, and determines the onward downlink video transmission during an video call.
For the purposes of the present document, the following terms and definitions given in 3GPP TS 22.280 [2] apply:
Mission Critical
Mission Critical Applications
Mission Critical Service
Mission Critical Organization
Mission Critical System
For the purposes of the present document, the following terms and definitions given in 3GPP TS 22.281 [3] apply:
Real Time
Real Time Video
For the purposes of the present document, the following terms and definitions given in 3GPP TS 23.280 [6] apply:
MC service client
MC service group
MC service group affiliation
MC service group de-affiliation
MC service group home system
MC service group host
MC service ID
MC service server
3.2 Symbols
For the purposes of the present document, the following symbols given in 3GPP TS 22.280 [2] apply:
Nc2
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].
E-UTRAN Evolved Universal Terrestrial Radio Access Network
EPC Evolved Packet Core
GCS AS Group Communication Service Application Server
GCSE_LTE Group Communication Service Enabler over LTE
HTTP Hyper Text Transfer Protocol
IMS IP Multimedia Subsystem
MC Mission Critical
MCVideo Mission Critical Video
MCVideo group ID MCVideo group identity
MCVideo ID MCVideo user identity
ProSe Proximity-based Services
SIP Session Initiated Protocol