For the purposes of the present document, the terms and definitions given in
TR 21.905 and the following apply. A term defined in the present document takes precedence over the definition of the same term, if any, in
TR 21.905.
An MCData user is affiliated to an MCData group:
The MCData user has expressed interest in an MCData group it is a member of, and both the MCData server serving the MCData user and the MCData server owning the MCData group have authorized the MCData user's interest in the MCData group communication.
An MCData user is affiliated to an MCData group at an MCData client:
The MCData user is affiliated to the MCData group, the MCData client has a registered IP address for an IMPU related to the MCData ID, and the MCData server serving the MCData user has authorised the MCData user's interest in the MCData group at the MCData client.
Affiliation status:
Applies for an MCData user to an MCData group and has one of the following states:
-
the "not-affiliated" state indicating that the MCData user is not interested in the MCData group and the MCData user is not affiliated to the MCData group;
-
the "affiliating" state indicating that the MCData user is interested in the MCData group but the MCData user is not affiliated to the MCData group yet;
-
the "affiliated" state indicating that the MCData user is affiliated to the MCData group and there was no indication that MCData user is no longer interested in the MCData group; and
-
the "deaffiliating" state indicating that the MCData user is no longer interested in the MCData group but the MCData user is still affiliated to the MCData group.
Group document:
when the group is not a regroup based on a preconfigured regroup, the term
"group document" used within the present document refers to the group document for that group within the GMS as specified in
TS 24.481; when the group is a regroup based on a preconfigured group, the term
"group document" used within the present document refers to the group document for the preconfigured group as specified in
TS 24.481 restricted to the users or groups included in the regroup stored by the MCData server at the time of the regroup creation, see
clause 23.
Group identity:
An MCData group identity or a temporary MCData group identity.
In-progress emergency private communication state:
the state of two participants when an MCData emergency one-to-one communication is in progress.
In-progress imminent peril group state:
the state of a group when an MCData imminent peril group communication is in progress.
MCData client ID:
is a globally unique identification of a specific MCData client instance. MCData client ID is a UUID URN as specified in
RFC 4122.
MCData emergency alert:
A notification from the MCData client to the MCData service that the MCData user has an emergency condition.
MCData emergency alert state:
MCData client internal perspective of the state of an MCData emergency alert.
MCData emergency group state:
MCData client internal perspective of the in-progress emergency state of an MCData group maintained by the controlling MCData function.
MCData emergency group communication:
An urgent MCData group communication that highlights a situation of potential death or serious injury.
MCData emergency group communication state:
MCData client internal perspective of the state of an MCData emergency group communication.
MCData emergency state:
MCData client internal perspective of the state of an MCData emergency associated with an alert, group communication or one-to-one (private) communication.
MCData emergency private communication state
MCData client internal perspective of the state of an MCData emergency one-to-one communication, initiated with emergency indication, or without emergency indication, when the MCData emergency state is already set.
MCData emergency private priority state:
MCData client internal perspective of the in-progress emergency private communication state of the two participants of an MCData emergency one-to-one communication maintained by the controlling MCData function.
MCData imminent peril group communication state:
MCData client internal perspective of the state of an MCData imminent peril group communication.
MCData imminent peril group state:
MCData client internal perspective of the state of an MCData imminent peril group.
MCData private emergency alert state:
MCData client internal perspective of the state of an MCData private one-to-one emergency alert targeted to an MCData user.
Functional alias status:
Applies for the status of a functional alias for an MCData user and has one of the following states:
-
the "not-activated" state indicating that the MCData user has not activated the functional alias;
-
the "activating" state indicating that the MCData user is interested in using the functional alias but the functional alias is not yet activated for the MCData user;
-
the "activated" state indicating that the MCData user has activated the functional alias;
-
the "deactivating" state indicating that the MCData user is no longer interested in using the functional alias but the functional alias is still activated for the MCData user; and
-
the "take-over-possible" state indicating that the MCData user is interested in using the functional alias but the functional alias is already activated and used by another MCData user.
User Requested Application Priority:
The requested priority as defined in
TS 23.280. How the server determines the priority for the requested communication based on requested priority and in combination with other factors is up to MCData server implementation.
For the purpose of the present document, the following terms and definitions given in
TS 33.180 apply:
Client Server Key (CSK)
Multicast Signalling Key (MuSiK)
Multicast Signalling Key Identifier (MuSiK-ID)
MBMS subchannel control key (MSCCK)
MBMS subchannel control key identifier (MSCCK-ID)
Private Call Key (PCK)
Signalling Protection Key (SPK)
XML Protection Key (XPK)
For the purpose of the present document, the following terms and definitions given in
TS 22.280 apply:
For the purposes of the present document, the abbreviations given in
TR 21.905 and the following apply. An abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in
TR 21.905.
CSK
Client-Server Key
IMPU
P Multimedia Public User identity
IPEG
In-Progress Emergency Group
IPEPC
In-Progress Emergency Private Call
IPIG
In-Progress Imminent peril Group
MBMS
Multimedia Broadcast and Multicast Service
MBS
Multicast/Broadcast Service
MC
Mission Critical
MCS
Mission Critical Service
MCData
Mission Critical Data
MCData group ID
MCData group Identity
MDEA
MCData Emergency Alert
MDEG
MCData Emergency Group
MDEGC
MCData Emergency Group Communication
MDES
MCData Emergency State
MDEPC
MCData Emergency Private (one-to-one) Communication
MDEPP
MCData Emergency Private (one-to-one) Priority
MDES
MCData Emergency State
MDIG
MCData Imminent peril Group
MDIGC
MCData Imminent peril Group Communication
MDPEA
MCData Private (one-to-one) Emergency Alert
MIME
Multipurpose Internet Mail Extensions
MONP
MCPTT Off-Network Protocol
PPPP
ProSe Per-Packet Priority
PQI
PC5 5QI
QCI
QoS Class Identifier
RTP
Real-time Transport Protocol
SAI
Service Area Identifier
SDP
Session Description Protocol
SIP
Session Initiation Protocol
SPK
Signalling Protection Key
URI
Uniform Resource Identifier
URN
Uniform Resource Name
UUID
Universally Unique IDentifier
XPK
XML Protection Key