ETSI TS 123 282 V16.6.1 (2020-10)

ETSI TS 123 282 V16.6.1 (2020-10)






TECHNICAL SPECIFICATION
LTE;
Functional architecture and information flows to support
Mission Critical Data (MCData);
Stage 2
(3GPP TS 23.282 version 16.6.1 Release 16)

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3GPP TS 23.282 version 16.6.1 Release 16 1 ETSI TS 123 282 V16.6.1 (2020-10)



Reference
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3GPP TS 23.282 version 16.6.1 Release 16 2 ETSI TS 123 282 V16.6.1 (2020-10)
Intellectual Property Rights
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pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
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"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.
ETSI

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3GPP TS 23.282 version 16.6.1 Release 16 3 ETSI TS 123 282 V16.6.1 (2020-10)
Contents
Intellectual Property Rights . 2
Legal Notice . 2
Modal verbs terminology . 2
Foreword . 12
1 Scope . 13
2 References . 13
3 Definitions, symbols and abbreviations . 14
3.1 Definitions . 14
3.2 Abbreviations . 16
4 Introduction . 16
5 Architectural requirements . 16
5.1 Transmission control . 16
5.2 Reception control . 17
5.3 Short Data Service capability . 17
5.4 File distribution capability . 17
5.5 Data streaming capability . 18
5.6 MCData group affiliation and MCData group de-affiliation . 19
5.7 Conversation management . 19
5.8 Bearer management . 19
5.8.1 General . 19
5.8.2 EPS bearer considerations . 19
5.8.3 EPS unicast bearer considerations for MCData . 19
5.8.4 MBMS bearer management . 20
5.9 Disposition . 20
5.10 MCData message store . 20
5.11 IP connectivity (IPcon) capability . 21
5.12 MBMS user service architecture requirements. 22
6 Functional model . 22
6.1 General . 22
6.2 Description of the planes . 22
6.3 Transmission and reception control aspects . 22
6.3.1 General . 22
6.4 Generic functional model . 23
6.4.1 On-network functional model . 23
6.4.2 Off-network functional model . 23
6.4.3 Functional entities description . 23
6.4.3.1 Application plane . 23
6.4.3.1.1 MCData client . 23
6.4.3.1.2 MCData server. 24
6.4.3.1.3 MCData user database . 24
6.4.3.1.4 Interworking function to LMR system . 25
6.4.3.1.5 MC gateway server . 25
6.4.3.2 Signalling control plane . 25
6.4.3.3 MCData message store . 25
6.4.3.4 Message store client . 25
6.4.4 Reference points . 25
6.4.4.1 Application plane . 25
6.4.4.1.1 General . 25
6.4.4.1.2 Reference point MCData-2 (between the MCData server and the MCData user database) . 25
6.4.4.1.3 Reference point MCData-3 (between the MCData server and the MCData server) . 25
6.4.4.1.3A Reference point MCData-5 (between the MCData capability function and the EPS) . 26
6.4.4.1.4 Reference point MCData-6 (between the MCData server and the EPS) . 26
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3GPP TS 23.282 version 16.6.1 Release 16 4 ETSI TS 123 282 V16.6.1 (2020-10)
6.4.4.1.5 Reference point IWF-2 (between the interworking function to LMR system and the MCData
server) . 26
6.4.4.1.6 Reference point MCData-7 (between the Message store client and MCData message store) . 26
6.4.4.1.7 Reference point MCData-8 (between the MCData message store and McData server) . 26
6.4.4.1.8 Reference point MCData-9 (between the MC gateway server and the MC gateway server in a
different MCData system) . 26
6.5 Functional model for short data service . 26
6.5.1 On-network functional model . 26
6.5.2 Off-network functional model . 27
6.5.3 Functional entities description . 28
6.5.3.1 Application plane . 28
6.5.3.1.1 SDS function . 28
6.5.3.1.2 SDS distribution function . 28
6.5.3.1.3 Transmission/Reception control . 28
6.5.3.2 Signalling control plane . 28
6.5.4 Reference points . 29
6.5.4.1 Application plane . 29
6.5.4.1.1 Reference point MCData-SDS-1 (between the SDS distribution function and the SDS
function) . 29
6.5.4.1.2 Reference point MCData-SDS-2 (unicast between the SDS distribution function and the SDS

function) . 29
6.5.4.1.3 Reference point MCData-SDS-3 (multicast between the SDS distribution function and the
SDS function) . 29
6.5.4.2 Signalling control plane . 29
6.6 Functional model for file distribution . 29
6.6.1 On-network functional model . 29
6.6.1a On-network functional model for interconnection . 31
6.6.2 Off-network functional model . 31
6.6.3 Functional entities description . 32
6.6.3.1 Application plane . 32
6.6.3.1.1 FD function . 32
6.6.3.1.2 Media storage client . 32
6.6.3.1.3 Transmission/Reception control . 32
6.6.3.1.4 Media storage function . 33
6.6.3.2 Signalling control plane . 33
6.6.4 Reference points . 33
6.6.4.1 Application plane . 33
6.6.4.1.1 Reference point MCData-FD-1 (between the FD functions of the MCData client and the

MCData server) . 33
6.6.4.1.2 Reference point MCData-FD-2 (unicast between the FD functions of the MCData client and
the MCData server) . 33
6.6.4.1.3 Reference point MCData-FD-3 (multicast between the FD functions of the MCData client
and the MCData server) . 34
6.6.4.1.4 Reference point MCData-FD-4 (media storage function and media storage client) . 34
6.6.4.1.5 Reference point MCData-FD-5 (FD function and media storage function) . 34
6.6.4.2 Signalling control plane . 34
6.7 Functional model for data streaming . 34
6.7.1 On-network functional model . 34
6.7.2 Off-network functional model . 35
6.7.3 Functional entities description . 35
6.7.3.1 Application plane . 35
6.7.3.1.1 DS function . 35
6.7.3.1.2 Data streaming and distribution function. 35
6.7.3.1.3 Transmission/Reception control . 35
6.7.3.2 Signalling control plane . 35
6.7.4 Reference points . 35
6.7.4.1 Application plane . 35
6.7.4.1.1 Reference point MCData-DS-1 (between the data streaming and distribution function and the
DS function) . 35
6.7.4.1.2 Reference point MCData-DS-2 (unicast between the data streaming and distribution function
and the DS function) . 36
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3GPP TS 23.282 version 16.6.1 Release 16 5 ETSI TS 123 282 V16.6.1 (2020-10)
6.7.4.1.3 Reference point MCData-DS-3 (multicast between the data streaming and distribution
function and the DS function) . 36
6.7.4.2 Signalling control plane . 36
6.8 Functional model for IP connectivity . 36
6.8.1 On-network functional model . 36
6.8.2 Off-network functional model . 37
6.8.3 Functional entities description . 37
6.8.3.1 Application plane . 37
6.8.3.1.1 IP connectivity function. 37
6.8.3.1.2 IPcon distribution function . 37
6.8.3.1.3 Transmission/Reception control . 38
6.8.3.2 Signalling control plane . 38
6.8.4 Reference points . 38
6.8.4.1 Application plane . 38
6.8.4.1.1 Reference point MCData-IPcon-1 (between the IPcon distribution function and the U-IPcon
function) . 38
6.8.4.1.2 Reference point MCData-IPcon-2 (unicast between the U-IPcon distribution function and the
U-IPcon function) . 38
6.8.4.1.3 Reference point MCData-IPcon-3 (multicast between the IPcon distribution function and the
IPcon function) . 38
6.8.4.2 Signalling control plane . 38
7 Procedures and information flows . 39
7.1 MCData service configuration . 39
7.2 Affiliation and de-affiliation to/from MCData group(s). 39
7.3 Use of MBMS transmission (on-network) . 39
7.3.1 Information flows for MBMS Transmission . 39
7.3.2 Use of pre-established MBMS bearers . 39
7.3.3 Use of dynamic MBMS bearer establishment . 40
7.3.4 Switching from MBMS bearer to unicast bearer . 40
7.3.5 Use of MBMS user services for file distribution . 40
7.3.5.1 General . 40
7.3.5.2 Information flows for MBMS user service usage . 40
7.3.5.2.1 MBMS user service announcement . 40
7.3.5.3 Procedures for MBMS user service usage . 41
7.3.5.3.1 Use of pre-established MBMS user services . 41
7.3.5.3.1.1 General . 41
7.3.5.3.1.2 Procedure . 41
7.3.5.3.2 Use of dynamic MBMS user service establishment . 43
7.4 Short data service . 44
7.4.1 General . 44
7.4.2 Short data service for on-network . 44
7.4.2.1 Information flows for short data service . 44
7.4.2.1.1 MCData standalone data request . 44
7.4.2.1.2 MCData data disposition notification . 45
7.4.2.1.3 MCData standalone session data request . 45
7.4.2.1.4 MCData standalone session data response . 46
7.4.2.1.5 MCData session data request . 46
7.4.2.1.6 MCData session data response . 47
7.4.2.1.7 MCData group standalone data request (MCData client – MCData server). 47
7.4.2.1.8 MCData group standalone data request (MCData server – MCData client) . 48
7.4.2.1.9 MCData data disposition notification(s) (MCData server – MCData client) . 49
7.4.2.1.10 MCData group session standalone data request (MCData client – MCData server) . 49
7.4.2.1.11 MCData group session standalone data request (MCData server – MCData client) . 50
7.4.2.1.12 MCData group session standalone data response . 51
7.4.2.1.13 MCData group data request (MCData client – MCData server) .
...