Content for TR 23.784 Word version: 16.0.0

1 Scope p. 7

The present document studies solutions to satisfy the requirements for discreet listening and logging for mission critical services. It identifies enhancements to be included in the technical specifications for MCPTT, MCVideo, MCData and in the common functional architecture to support mission critical services. Requirements for this study are taken from the Stage 1 requirements, including TS 22.280, and TS 22.281.

2 References p. 7

The following documents contain provisions which, through reference in this text, constitute provisions of the present document.

References are either specific (identified by date of publication, edition number, version number, etc.) or non-specific.
For a specific reference, subsequent revisions do not apply.
For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same Release as the present document.

[1]

TR 21.905: "Vocabulary for 3GPP Specifications".

[2]

TS 22.280: "Mission Critical Services Common Requirements (MCCoRe)"

[3]

TS 22.281: "Mission Critical Video services"

[4]

TS 22.179: "Mission Critical Push To Talk (MCPTT); Stage 1"

[5]

TS 22.282: "Mission Critical Data services"

[6]

TS 33.180: "Security of the mission critical service"

[7]

TS 23.379: "Functional architecture and information flows to support Mission Critical Push To Talk (MCPTT); Stage 2"

[8]

TS 23.281: "Functional architecture and information flows to support Mission Critical Video (MCVideo); Stage 2".

[9]

TS 23.282: "Functional architecture and information flows to support Mission Critical Data (MCData); Stage 2".

[10]

TS 24.379: "Mission Critical Push To Talk (MCPTT) call control; Protocol specification"

[11]

TS 24.281: "Mission Critical Video (MCVideo) signalling control; Protocol specification"

[12]

TS 24.282: "Mission Critical Data (MCData) signalling control; Protocol specification"

3 Definitions and abbreviations p. 7

3.1 Definitions p. 7

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.

Discreet listening:

A means for an authorized user to be provided with the communications of a target user, without any unauthorized user in the communications being aware.

Migrated MC system:

The partner MC system to which an MC service user has migrated, and in which that migrated MC service user is receiving MC service.

Security Domain:

A set of MC users who share common security requirements and policies for their communications.

3.2 Abbreviations p. 8

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.

File Distribution

GMK

Group Master Key

GMS

Group Management Server

Mission Critical

SDS

Short Data Service