LTE; Common functional architecture to support mission critical services; Stage 2 (3GPP TS 23.280 version 15.5.0 Release 15)

RTS/TSGS-0623280vf50

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Status
Published
Publication Date
10-Mar-2019
Current Stage
12 - Completion
Completion Date
11-Mar-2019
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ETSI TS 123 280 V15.5.0 (2019-03) - LTE; Common functional architecture to support mission critical services; Stage 2 (3GPP TS 23.280 version 15.5.0 Release 15)
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ETSI TS 123 280 V15.5.0 (2019-03)






TECHNICAL SPECIFICATION
LTE;
Common functional architecture to support
mission critical services;
Stage 2
(3GPP TS 23.280 version 15.5.0 Release 15)

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3GPP TS 23.280 version 15.5.0 Release 15 1 ETSI TS 123 280 V15.5.0 (2019-03)



Reference
RTS/TSGS-0623280vf50
Keywords
LTE
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3GPP TS 23.280 version 15.5.0 Release 15 2 ETSI TS 123 280 V15.5.0 (2019-03)
Intellectual Property Rights
Essential patents
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pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
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Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
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server) which are, or may be, or may become, essential to the present document.
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Foreword
This Technical Specification (TS) has been produced by ETSI 3rd Generation Partnership Project (3GPP).
The present document may refer to technical specifications or reports using their 3GPP identities, UMTS identities or
GSM identities. These should be interpreted as being references to the corresponding ETSI deliverables.
The cross reference between GSM, UMTS, 3GPP and ETSI identities can be found under
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Modal verbs terminology
In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and
"cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of
provisions).
"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.
ETSI

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3GPP TS 23.280 version 15.5.0 Release 15 3 ETSI TS 123 280 V15.5.0 (2019-03)
Contents
Intellectual Property Rights . 2
Foreword . 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 Symbols . 16
3.3 Abbreviations . 16
4 Introduction . 17
5 Assumptions and architectural requirements . 17
5.1 Assumptions . 17
5.1.1 Service continuity . 17
5.1.2 Trust domain . 17
5.2 Architectural requirements . 18
5.2.1 General architectural requirements . 18
5.2.2 Roaming requirements . 18
5.2.3 UE-to-network relay MC service requirements . 18
5.2.4 MC service user profile requirements . 18
5.2.5 MC service group affiliation and MC service group de-affiliation . 19
5.2.6 GCS AS requirements for the MC services . 19
5.2.7 Bearer management . 20
5.2.7.0 General . 20
5.2.7.1 MBMS bearer management . 21
5.2.7.2 EPS bearer considerations . 21
5.2.8 External applications access to services in a MC system . 21
5.2.9 Migration . 21
5.2.9.1 General . 21
5.2.9.2 PLMN utilisation . 22
5.2.9.3 SIP core / IMS utilisation . 22
5.2.10 Interconnection . 23
5.2.10.1 General . 23
5.2.10.2 Connectivity . 23
5.2.10.3 Migration . 23
5.2.10.4 Private calls . 23
5.2.10.5 Group calls . 23
5.2.10.6 Group configuration . 23
5.2.10.7 MC system topology hiding . 24
6 Involved business relationships . 24
7 Functional model . 27
7.1 General . 27
7.2 Description of the planes . 27
7.3 Functional model description . 27
7.3.1 On-network functional model . 27
7.3.2 Off-network functional model . 31
7.4 Functional entities description . 31
7.4.1 General . 31
7.4.2 Application plane . 31
7.4.2.1 General . 31
7.4.2.2 Common services core . 31
7.4.2.2.1 Configuration management client. 31
ETSI

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3GPP TS 23.280 version 15.5.0 Release 15 4 ETSI TS 123 280 V15.5.0 (2019-03)
7.4.2.2.2 Configuration management server . 32
7.4.2.2.3 Group management client . 32
7.4.2.2.4 Group management server . 32
7.4.2.2.5 Identity management client . 32
7.4.2.2.6 Identity management server . 32
7.4.2.2.7 Key management client . 32
7.4.2.2.8 Key management server . 32
7.4.2.2.9 Location management client . 33
7.4.2.2.10 Location management server . 33
7.4.2.2.11 Migration management server . 33
7.4.2.2.12 Functional alias management client . 33
7.4.2.2.13 Functional alias management server . 34
7.4.2.3 MC service . 34
7.4.2.3.1 MC service client . 34
7.4.2.3.2 MC service server . 34
7.4.2.3.3 MC service user database . 34
7.4.2.3.4 MC gateway server . 34
7.4.3 Signalling control plane . 34
7.4.3.1 SIP entities . 34
7.4.3.1.1 Signalling user agent . 34
7.4.3.1.2 SIP AS . 35
7.4.3.1.3 SIP core . 35
7.4.3.1.3.1 General . 35
7.4.3.1.3.2 Local inbound / outbound proxy . 35
7.4.3.1.3.3 Registrar finder . 35
7.4.3.1.3.4 Registrar / application service selection . 36
7.4.3.1.4 Diameter proxy . 36
7.4.3.2 SIP database . 36
7.4.3.2.1 General . 36
7.4.3.2.2 SIP database logical functions . 37
7.4.3.3 HTTP entities . 38
7.4.3.3.1 HTTP client . 38
7.4.3.3.2 HTTP proxy . 38
7.4.3.3.3 HTTP server . 38
7.5 Reference points . 38
7.5.1 General reference point principle . 38
7.5.2 Application plane . 38
7.5.2.1 General . 38
7.5.2.2 Reference point CSC-1 (between the identity management client and the identity management
server) . 38
7.5.2.3 Reference point CSC-2 (between the group management client and the group management server
for configuration while UE is on-network) . 38
7.5.2.4 Reference point CSC-3 (between the MC service server and the group management server) . 39
7.5.2.5 Reference point CSC-4 (between the configuration management client and the configuration
management server for configuration while UE is on-network) . 39
7.5.2.6 Reference point CSC-5 (between the MC service server and the configuration management
server) . 39
7.5.2.7 Reference point CSC-7 (between the group management servers) . 39
7.5.2.8 Reference point CSC-8 (between the key management server and the key management client) . 39
7.5.2.9 Reference point CSC-9 (between the key management server and the MC service server) . 40
7.5.2.10 Reference point CSC-10 (between the key management server and the group management
server) . 40
7.5.2.11 Reference point CSC-11 (between the configuration management client and the configuration
management server for configuration while UE is off-network). 40
7.5.2.12 Reference point CSC-12 (between the group management client and the group management
server for configuration while UE is off-network) . 40
7.5.2.13 Reference point CSC-13 (between the configuration management server and the MC service user
database) . 40
7.5.2.14 Reference point CSC-14 (between the location management client and the location management
server) . 40
7.5.2.15 Reference point CSC-15 (between the location management server and the MC service server) . 41
7.5.2.16 Reference point CSC-16 (between group management servers in different MC systems) . 41
ETSI

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3GPP TS 23.280 version 15.5.0 Release 15 5 ETSI TS 123 280 V15.5.0 (2019-03)
7.5.2.17 Reference point CSC-17 (between configuration management servers in different MC systems) . 41
7.5.2.18 Reference point CSC-18 (between migration management servers in different MC systems) . 41
7.5.2.19 Reference point MCX-1 (between MC service servers) . 41
7.5.3 Signalling control plane . 41
7.5.3.1 General . 41
7.5.3.2 Reference point SIP-1(between the signalling user agent and the SIP core) . 41
7.5.3.3 Reference point SIP-2 (between the SIP core and the SIP AS) . 42
7.5.3.4 Reference point SIP-3 (between the SIP core and SIP core) . 42
7.5.3.5 Reference point HTTP-1 (between the HTTP client and the HTTP proxy) . 42
7.5.3.6 Reference point HTTP-2 (between the HTTP proxy and the HTTP server) . 42
7.5.3.7 Reference point HTTP-3 (between the HTTP proxy and HTTP proxy) . 42
7.5.3.8 Reference point AAA-1 (between the SIP database and the SIP core) . 43
7.5.3.9 Reference point AAA-2 (between the SIP core and Diameter proxy) . 43
8 Identities . 43
8.1 Application plane . 43
8.1.1 Mission Critical user identity (MC ID) . 43
8.1.2 MC service user identity (MC service ID) . 43
8.1.3 MC service group identity (MC service group ID) . 43
8.1.3.1 General . 43
8.1.3.2 MC service group ID management (off-network operation) . 44
8.1.4 MC system identity (MC system ID) . 45
8.2 SIP signalling control plane. 45
8.3 Relationship between identities in different planes . 45
8.3.1 Relationship between MC service ID and public user identity . 45
8.3.2 Relationship between MC service group ID and public service identity . 46
9 Application of functional model to deployments . 46
9.1 General . 46
9.2 Architecture model and deployment scenarios for on-network operations . 46
9.2.1 On-network architectural model . 46
9.2.1.1 On-network architectural model diagram . 46
9.2.1.2 Application services layer . 47
9.2.1.2.1 Overview . 47
9.2.1.2.2 Common services core . 47
9.2.1.2.3 MC services . 47
9.2.1.3 SIP core . 47
9.2.1.4 EPS . 48
9.2.1.5 UE 1 . 48
9.2.1.6 UE 2 . 48
9.2.2 Deployment scenarios . 48
9.2.2.1 Administration of MC service, SIP core and EPS . 48
9.2.2.1.1 General . 48
9.2.2.1.2 Common administration of all planes . 48
9.2.2.1.3 MC service provider separate from SIP core and EPS . 49
9.2.2.1.4 MC service provider administers SIP core, separate from EPS . 50
9.2.2.1.5 SIP core partially administered by both PLMN operator and MC service provider . 50
9.2.2.1.6 PLMN operator administers SIP core with SIP identities administered by MC service
provider . 51
9.2.2.2 MC service user database, SIP database and HSS . 52
9.2.2.3 Control of bearers by SIP core and MC service server . 55
9.2.2.3.1 General . 55
9.2.2.3.2 Control of bearers by SIP core . 55
9.2.2.3.3 Control of bearers by MC service server . 55
9.3 Architecture model for off-network operations .
...

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