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TS 23.379 (SA6) ★
Functional architecture and information flows
to support Mission Critical Push To Talk (MCPTT)

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V17.0.0 (Wzip)  2019/09  248 p.
V16.4.0 (Wzip)  2019/09  244 p.
V15.6.0 (PDF)  2019/06  202 p.
V14.7.0  2018/09  184 p.
3GPP 23.379 - Functional model for application plane of MCPTT service
Rapporteur:  Mr. Lazara, Dominic
This document specifies the functional architecture, procedures and information flows needed to support the mission critical push to talk (MCPTT) service. The MCPTT service utilizes the common functional architecture to support MC services over LTE including the common services core defined in TS 23.280. Support for both MCPTT group calls and MCPTT private calls operating in on-network and off-network modes of operation is specified.
The corresponding service requirements are defined in TS 22.179 and TS 22.280.
The present document is applicable primarily to MCPTT voice service using E-UTRAN access based on the EPC architecture defined in TS 23.401. Certain application functions of the MCPTT service such as dispatch and administrative functions could also be supported via non-3GPP access networks but no additional functionality is specified to support non-3GPP access.
The MCPTT service requires preferential handling compared to normal telecommunication services e.g. in support of police or fire brigade including the handling of prioritised MCPTT calls for emergency and imminent threats.
The MCPTT service can be used for public safety applications and also for general commercial applications e.g. utility companies and railways.
In the present document, MCPTT calls between MCPTT users on different MCPTT systems are considered.

short Table of Contents for  TS 23.379  Word version:   17.0.0

each title links to the equivalent title in the full ToC

 

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1  Scope  Word-p. 12
2  References  Word-p. 12
3  Definitions, symbols and abbreviations  Word-p. 13
4  Introduction  Word-p. 16
5  Architectural requirements  Word-p. 16
6  Involved business relationships  Word-p. 18
7  Functional model  Word-p. 18
7.1  General  Word-p. 18
7.2  Description of the planes  Word-p. 19
7.3  Functional model description  Word-p. 19
7.4  Functional entities description  Word-p. 21
7.5  Reference points  Word-p. 24
8  Identities  Up  Word-p. 26
9  Application of functional model to deployments  Word-p. 26
10  Procedures and information flows  Word-p. 27
10.1  MCPTT service configuration  Word-p. 27
10.2  User authentication and authorization for MCPTT service  Word-p. 27
10.3  Affiliation and de-affiliation to/from MCPTT group(s)  Word-p. 28
10.3a  Activation and de-activation of/from functional alias(es) [R15]  Word-p. 28
10.4  MCPTT group selection  Word-p. 28
10.5  Pre-established session (on-network)  Word-p. 30
10.6  Group call  Word-p. 34
10.6.1  General  Word-p. 34
10.6.2  On-network group call  Up  Word-p. 34
10.6.3  Off-network group call  Word-p. 123
10.7  Private call  Word-p. 135
10.7.1  General  Word-p. 135
10.7.2  Private call in on-network  Word-p. 135
10.7.3  Private call in off-network  Word-p. 152
10.7.4  MCPTT private call call-back request  Word-p. 157
10.7.5  MCPTT call forwarding for private calls [R16]  Word-p. 160
10.7.6  Call transfer for MCPTT private calls [R17]  Up  Word-p. 165
10.8  Simultaneous session for MCPTT calls (on-network)  Word-p. 168
10.9  Floor control  Word-p. 169
10.9.1  Floor control for on-network MCPTT service  Word-p. 169
10.9.2  Floor control for off-network MCPTT service  Word-p. 195
10.10  Use of MBMS transmission (on-network)  Word-p. 202
10.11  MCPTT resource management (on-network)  Word-p. 208
10.12  MCPTT media plane transmissions with partner MCPTT systems (on-network)  Word-p. 208
10.13  Location information (on-network)  Word-p. 210
10.14  Ambient listening call  Word-p. 210
10.15  First-to-answer call setup  Word-p. 217
10.16  Remotely initiated MCPTT call  Word-p. 222
10.17  Support for multiple devices  Word-p. 225
10.18  Subscription and notification for functional alias [R16]  Up  Word-p. 225
A (Normative)  MCPTT related configuration data  Word-p. 228
B  Local UE settings for MCPTT  Word-p. 244
C  Change history  Word-p. 245

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