Content for TR 22.880 Word version: 14.0.0

3.1 Definitions 3.2 Abbreviations 4.1 Background 4.2 Mission Critical Data Communication
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0 Introduction p. 8

The present document studies use cases and identifies potential requirements for a Mission Critical Data Communications (MCData service). The MCData Service can be used for public safety and security applications and also for general commercial applications requiring critical availability or service level (e.g., utility companies and railways.

As far as possible, the present document will reuse principles and definitions defined for the MCPTT service.

1 Scope p. 9

The present document studies use cases and identifies potential requirements for operation of the MCData service. MCData makes use of capabilities included in Group Communications System Enablers for LTE (GCSE_LTE), Proximity based Services (ProSe), and Isolated E-UTRAN Operation for Public Safety (IOPS) with additional requirements specific to the MCData Service. The MCData Service can be used for public safety applications and also for general commercial applications (e.g., utility companies and railways).

As far as possible, the MCData service will reuse applicable elements from the MCPTT service.

2 References p. 9

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 22.179: "Mission Critical Push To Talk (MCPTT) over LTE"

[3]

TS 22.346: "Isolated Evolved Universal Terrestrial Radio Access Network (E-UTRAN) Operation for Public Safety"

[4]

TR 22.879: "Feasibility Study on Mission Critical Video Services over LTE

3 Definitions and abbreviations p. 9

3.1 Definitions p. 9

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.

3.2 Abbreviations p. 9

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.

IOPS

Isolated E-UTRAN Operation for Public Safety

MCPTT

Mission Critical Push to Talk

4 Overview p. 10

4.1 Background p. 10

The general importance of mobile data communication to mission critical organisations has been growing over the years and, as a result, mission critical operations have become more and more depended on mobile data communications. In addition, thanks to the development of messaging and data transfer in commercial mobile networks, mission critical communication users see more and more potential in data communications. As a consequence, there is a need to extend group communications to support different media types.

So far mission critical organisations have been using a combination of dedicated private networks and commercial services to cover their needs. With their increasing demands for data they now look forward to one system providing all the required services.

4.2 Mission Critical Data Communication p. 10

Mission Critical Data Communication provides a set of services and mechanisms to mission critical users to allow reliable, predictable, secure and flexible data communications during periods of normal- and of high network load.

The services provided by Mission Critical Data Communication include secure individual and group based text and multi-media messaging.

The mechanisms provided by Mission Critical Data Communication allow management and monitoring of data flows and provide application dependent, user dependent and situation dependent data priority.