3 Definitions, symbols and abbreviations

22.2823GPPMission Critical (MC) dataTS

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].

Conversation: A series of messages that are linked to the same topic within a group or one-to-one data communication.

Conversation ID: An identifier that uniquely identifies a conversation within a group or one-to-one data communication.

MCData Conversation Hang Time: The time from the transmission of an MCData message after which a subsequent MCData message is no longer considered to be linked to the previous one.

MCData System: The collection of applications, services, and enabling capabilities required to provide Mission Critical Data for a Mission Critical Organization.

3.2 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].

IOPS Isolated E-UTRAN Operation for Public Safety

SDS Short Data Service