ETSI TS 103 269-2 V1.1.1 (2015-01) TECHNICAL SPECIFICATION TETRA and Critical Communications Evolution (TCCE); Critical Communications Architecture; Part 2: Critical Communications application mobile to network interface architecture 2 ETSI TS 103 269-2 V1.1.1 (2015-01) Reference DTS/TCCE-04187 Keywords broadband, radio, security, TETRA ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16 Siret N° 348 623 562 00017 - NAF 742 C Association à but non lucratif enregistrée à la Sous-Préfecture de Grasse (06) N° 7803/88 Important notice The present document can be downloaded from: http://www.etsi.org The present document may be made available in electronic versions and/or in print. The content of any electronic and/or print versions of the present document shall not be modified without the prior written authorization of ETSI. 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ETSI 3 ETSI TS 103 269-2 V1.1.1 (2015-01) Contents Intellectual Property Rights ................................................................................................................................ 7 Foreword ............................................................................................................................................................. 7 Modal verbs terminology .................................................................................................................................... 7 1 Scope ........................................................................................................................................................ 8 2 References ................................................................................................................................................ 8 2.1 Normative references ......................................................................................................................................... 8 2.2 Informative references ........................................................................................................................................ 9 3 Definitions and abbreviations ................................................................................................................... 9 3.1 Definitions .......................................................................................................................................................... 9 3.2 Abbreviations ................................................................................................................................................... 10 4 Architecture overview ............................................................................................................................ 11 4.1 Architecture reference ...................................................................................................................................... 11 4.2 Configurations .................................................................................................................................................. 12 4.2.1 Single CCA system ..................................................................................................................................... 12 4.2.2 Multi-CCA system ...................................................................................................................................... 14 4.2.3 Interconnection with legacy ........................................................................................................................ 14 5 Components ............................................................................................................................................ 14 5.1 Mobile unit ....................................................................................................................................................... 14 5.2 Access sub-systems .......................................................................................................................................... 15 5.3 Critical Communication Application................................................................................................................ 15 5.3.1 Access interfaces ........................................................................................................................................ 15 5.3.1.1 Application control interface ................................................................................................................. 15 5.3.1.2 Media unicast interface ......................................................................................................................... 16 5.3.1.3 Media multicast interface ...................................................................................................................... 16 5.3.1.4 Unicast bearer control interface ............................................................................................................ 16 5.3.1.5 Multicast bearer control interface ......................................................................................................... 16 5.4 CCA functional entities .................................................................................................................................... 16 5.4.1 SIP application server ................................................................................................................................. 16 5.4.2 Mobility management ................................................................................................................................. 16 5.4.3 Group management ..................................................................................................................................... 17 5.4.4 Resource management ................................................................................................................................ 17 5.4.5 Application server ....................................................................................................................................... 17 5.4.6 Media distribution ....................................................................................................................................... 17 5.4.7 Security ....................................................................................................................................................... 17 6 Reference points and protocols .............................................................................................................. 18 6.1 Identities and protocols .................................................................................................................................... 19 6.1.1 Application level identities ......................................................................................................................... 19 6.1.2 Transport protocols ..................................................................................................................................... 19 6.1.2.1 Unicast transport ................................................................................................................................... 20 6.1.2.2 Multicast transport ................................................................................................................................ 20 6.1.2.3 Control of unicast/broadcast transport over LTE .................................................................................. 20 6.1.3 Network layer protocols .............................................................................................................................. 21 6.1.4 Application layer protocols ......................................................................................................................... 21 6.1.4.1 Pseudo-broadcast protocol .................................................................................................................... 21 6.2 Standardised application codecs ....................................................................................................................... 21 6.2.1 Voice Codec...............................................................................................................................................