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

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V17.5.0 (Wzip) 2020/12 250 p.

V16.6.1 (PDF) 2020/06 245 p.

V15.6.0 2019/06 202 p.

V14.7.0 2018/09 184 p.

Rapporteur:: Mr. Lazara, Dominic Motorola Solutions UK Ltd.

3GPP 23.379 - Functional model for application plane of MCPTT service

essential Table of Contents for TS 23.379 Word version: 17.3.2

each title, in the "available" or "not available yet" area, links to the equivalent title in the CONTENT

2 References Word‑p. 12

3 Definitions, symbols and abbreviations Word‑p. 13

4 Introduction Word‑p. 16

5 Architectural requirements Word‑p. 16

5.1 Media routing requirements Word‑p. 16

5.2 Requirements for user identity management Word‑p. 16

5.3 MCPTT group affiliation and MCPTT group de-affiliation Word‑p. 17

5.4 MCPTT call requirements Word‑p. 17

5.5 GCS AS requirements for the MCPTT service Word‑p. 17

5.6 Group selection Word‑p. 17

5.7 Bearer management Word‑p. 17

5.8 MCPTT system interconnect requirements Word‑p. 18

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 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 Word‑p. 34

10.6.3 Off-network group call Word‑p. 117

10.7 Private call Word‑p. 126

10.7.1 General Word‑p. 126

10.7.2 Private call in on-network Word‑p. 126

10.7.3 Private call in off-network Word‑p. 143

10.7.4 MCPTT private call call back request Word‑p. 148

10.7.5 MCPTT call forwarding for private calls |R16| Word‑p. 151

10.7.6 Call transfer for MCPTT private calls |R17| Word‑p. 161

10.8 Simultaneous session for MCPTT calls (on-network) Word‑p. 167

10.9 Floor control Word‑p. 167

10.9.1 Floor control for on-network MCPTT service Word‑p. 167

10.9.2 Floor control for off-network MCPTT service Word‑p. 193

10.10 Use of MBMS transmission (on-network) Word‑p. 200

10.11 MCPTT resource management (on-network) Word‑p. 206

10.12 MCPTT media plane transmissions with partner MCPTT systems (on-network) Word‑p. 206

10.13 Location information (on-network) Word‑p. 208

10.14 Ambient listening call Word‑p. 208

10.15 First-to-answer call setup Word‑p. 215

10.16 Remotely initiated MCPTT call Word‑p. 221

10.17 Support for multiple devices Word‑p. 223

10.18 Subscription and notification for functional alias |R16| Word‑p. 223

A (Normative) MCPTT related configuration data Word‑p. 224

B Local UE settings for MCPTT Word‑p. 241

$ Change history Word‑p. 242

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

essential Table of Contents for TS 23.379 Word version: 17.3.2

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