1、 ETSI TS 123 228 V14.6.0 (2018-01) Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; IP Multimedia Subsystem (IMS); Stage 2 (3GPP TS 23.228 version 14.6.0 Release 14) TECHNICAL SPECIFICATION ETSI ETSI TS 123 228 V14.6.0 (2018-01)13GP
2、P TS 23.228 version 14.6.0 Release 14Reference RTS/TSGS-0223228ve60 Keywords GSM,LTE,UMTS 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 but non lucratif enregistre la Sous-Prfecture
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9、TS 123 228 V14.6.0 (2018-01)23GPP TS 23.228 version 14.6.0 Release 14Intellectual Property Rights Essential patents IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pertaining to these essential IPRs, if any, is publicly available for ET
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13、ademark and/or tradename. Mention of those trademarks in the present document does not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks. Foreword This Technical Specification (TS) has been produced by ETSI 3rd Generation Partnership Project (3
14、GPP). 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 f
15、ound under http:/webapp.etsi.org/key/queryform.asp. 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 th
16、e expression of provisions). “must“ and “must not“ are NOT allowed in ETSI deliverables except when used in direct citation. ETSI ETSI TS 123 228 V14.6.0 (2018-01)33GPP TS 23.228 version 14.6.0 Release 14Contents Intellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 14g
17、31 Scope 15g32 References 15g33 Definitions, symbols and abbreviations . 19g33.1 Definitions 19g33.2 Symbols 21g33.3 Abbreviations . 22g34 IP multimedia subsystem concepts . 23g34.0 General . 23g34.1 Relationship to CS domain and the IP-Connectivity Access Network . 24g34.2 IMS services concepts 25g
18、34.2.1 Home-network based services 25g34.2.1.1 Support of CAMEL or IN . 25g34.2.1.2 Support of OSA . 25g34.2.1.3 Dynamic services interactions handling 25g34.2.1.3.1 Service information exchanged between Application Servers 25g34.2.1.3.2 Handling by the Application Server 25g34.2.1.3.3 Deletion of s
19、ervices interaction information . 25g34.2.2 Support of numbers in non-international format in the IMS . 26g34.2.3 Support of roaming users 26g34.2.4 IP multimedia Subsystem Service Control Interface (ISC) 28g34.2.4a HSS to service platform Interface . 30g34.2.4b S-CSCF Service Control Model 32g34.2.
20、4c I-CSCF to AS reference point (Ma) 33g34.2.5 The QoS requirements for an IM CN subsystem session 34g34.2.6 QoS Requirements for IM CN subsystem signalling 35g34.2.7 Support of SIP forking 36g34.2.7.1 SIP Forking . 36g34.2.7.2 Forking within and outside the IM CN Subsystem . 36g34.2.7.3 Support for
21、 forked requests . 37g34.3 Naming and addressing concepts . 37g34.3.1 Address management 37g34.3.2 Void 37g34.3.3 Identification of users . 37g34.3.3.0 General 37g34.3.3.1 Private User Identities . 37g34.3.3.2 Public User Identities 38g34.3.3.2a Globally Routable User Agent URI (GRUU) . 39g34.3.3.2a
22、.1 Architecture Requirements 39g34.3.3.2b Wildcarded Public User Identity . 40g34.3.3.3 Routing of SIP signalling within the IP multimedia subsystem 40g34.3.3.3a Handling of dialled number formats . 41g34.3.3.3b Termination of session with the TEL URI format Public User Identity 41g34.3.3.4 Relation
23、ship of Private and Public User Identities 41g34.3.3.5 Relationship of Public User Identities, GRUUs, and UEs 42g34.3.4 Identification of network nodes 43g34.3.5 E.164 address to SIP URI resolution in an IM CN subsystem 43g34.3.5.1 ENUM/DNS translation mechanism . 43g34.3.5.2 Handling of Tel URIs 43
24、g34.3.5.3 Handling of SIP URIs representing a telephone number 44g34.3.6 Public Service Identities . 44g3ETSI ETSI TS 123 228 V14.6.0 (2018-01)43GPP TS 23.228 version 14.6.0 Release 144.4 Signalling concepts. 44g34.5 Mobility related concepts . 45g34.6 Roles of Session Control Functions . 46g34.6.0
25、General 46g34.6.1 Proxy-CSCF 46g34.6.2 Interrogating-CSCF 47g34.6.2.0 General 47g34.6.2.1 Void. 47g34.6.3 Serving-CSCF . 47g34.6.4 Breakout Gateway Control Function 49g34.6.5 Void 50g34.7 Multimedia Resource Function 50g34.7a Media Resource Broker 52g34.8 Security Concepts . 52g34.9 Charging Concept
26、s . 52g34.10 IMS group management concepts 52g34.10.0 General 52g34.10.1 IMS group administration . 52g34.10.2 Group identifiers . 52g34.11 Relationship to 3GPP Generic User Profile (GUP) 52g34.12 Network Address Translation traversal in access network . 53g34.13 Identification of IMS communication
27、Services 53g34.13.1 General 53g34.13.2 Identification of IMS communication Services 53g34.13.3 Identification of IMS applications 55g34.14 Border Control concepts . 56g34.15 IMS in transit network scenarios 56g34.15.1 General concepts . 56g34.15.2 IMS transit network configurations 57g34.15.3 Provid
28、ing IMS application services in transit network scenarios . 57g34.15a Roaming Architecture for Voice over IMS with Local Breakout . 58g34.15b Roaming Architecture for Voice over IMS with home routed traffic 59g34.16 Support of multimedia telephony . 59g34.16.1 Telephony Application Server 59g34.16.2
29、 Identification of multimedia telephony 59g34.16.3 Session setup principles 59g34.17 Support of short message service . 59g34.17.1 IP Short Message Gateway (IP-SM-GW) . 59g34.18 Support of Number portability . 60g34.18.1 Number portability 60g34.19 Support of Preferred Circuit Carrier Access and Per
30、 Call Circuit Carrier Selection 60g34.19.1 Preferred Circuit Carrier Access and Per Call Circuit Carrier Selection 60g34.20 Support of IMS Service Centralization and Continuity 61g34.21 Support of Overlap Signalling 61g34.22 Support of Explicit Congestion Notification (ECN) 61g34.22.1 General 61g34.
31、22.2 CS GERAN/UTRAN Interworking at MGCF/IM-MGW . 61g34.22.3 Interworking with non-ECN IP network and/or terminal at IBCF/TrGW 62g34.22.4 Interworking with non-3GPP ECN IP terminal at IBCF/TrGW . 63g34.22.5 ECN support at IMS-ALG/IMS-AGW . 63g34.22.6 ECN support at MRFC/MRFP 63g34.22.7 CS GERAN/UTRA
32、N Interworking at the MSC Server enhanced for ICS/MSC Server enhanced for SRVCC with SIP/CS-MGW . 64g34.23 Support of Load Balancing . 64g34.23.1 General 64g34.23.2 Registration-based load balancing of S-CSCFs 64g34.23.3 Registration independent load balancing of Transit Functions . 64g34.24 Support
33、 of Restoration Procedures . 64g34.25 Support of Overload Control 65g34.25.1 General 65g34.25.2 Next-hop monitoring of overload . 65g34.25.3 Filter based Overload Control . 65g3ETSI ETSI TS 123 228 V14.6.0 (2018-01)53GPP TS 23.228 version 14.6.0 Release 144.26 Support for Business Trunking . 66g35 I
34、P multimedia subsystem procedures . 66g35.0 General . 66g35.0a Session-unrelated procedures . 66g35.1 CSCF related procedures 66g35.1.0 Establishing IP-Connectivity Access Network bearer for IM CN Subsystem Related Signalling 66g35.1.1 Procedures related to Proxy-CSCF discovery . 67g35.1.1.0 General
35、 67g35.1.1.1 DHCP/DNS procedure for P-CSCF discovery 67g35.1.1.2 Void. 68g35.1.2 Procedures related to Serving-CSCF assignment . 68g35.1.2.1 Assigning a Serving-CSCF for a user . 68g35.1.2.2 Cancelling the Serving-CSCF assignment 69g35.1.2.3 Void. 69g35.1.3 Procedures related to Interrogating-CSCF 6
36、9g35.1.4 Procedures related to Proxy-CSCF . 69g35.1.5 Subscription Updating Procedures 69g35.1.5.0 General 69g35.1.5.1 Subscription updating information flow 69g35.2 Application level registration procedures . 70g35.2.0 General 70g35.2.1 Requirements considered for registration . 70g35.2.1a Implicit
37、 Registration . 71g35.2.1a.0 General 71g35.2.1a.1 Implicit Registration for UE without ISIM or IMC 73g35.2.2 Registration flows . 73g35.2.2.1 Requirements to consider for registration . 73g35.2.2.2 Assumptions 73g35.2.2.3 Registration information flow User not registered . 73g35.2.2.4 Re-Registratio
38、n information flow User currently registered 75g35.2.2.5 Stored information. . 77g35.3 Application level de-registration procedures 78g35.3.1 Mobile initiated de-registration. 78g35.3.2 Network initiated de-registration 79g35.3.2.0 General 79g35.3.2.1 Network Initiated Application (SIP) De-registrat
39、ion, Registration Timeout 80g35.3.2.2 Network Initiated Application (SIP) De-registration, Administrative. 80g35.3.2.2.0 General 80g35.3.2.2.1 Network Initiated De-registration by HSS, administrative 81g35.3.2.2.2 Network Initiated De-registration by Service Platform . 81g35.4 Procedures for IP mult
40、i-media sessions 83g35.4.0 General 83g35.4.1 Bearer interworking concepts . 83g35.4.2 Interworking with Internet 83g35.4.2a IP version interworking 83g35.4.3 Interworking with PSTN . 84g35.4.4 Requirements for IP multi-media session control . 85g35.4.5 Session Path Information 85g35.4.5.1 Session Pa
41、th Information during Registration and Session Initiation . 85g35.4.5.2 P-CSCF in the Session Path 85g35.4.5.3 S-CSCF in the Session Path 86g35.4.6 End-user preferences and terminal capabilities . 86g35.4.6.0 General 86g35.4.6.1 Objectives 86g35.4.6.2 End-user expectations . 86g35.4.6.3 Mechanism fo
42、r bearer establishment . 87g35.4.6.4 Session progress indication to the originating UE 89g35.4.7 Interaction between QoS and session signalling . 89g35.4.7.0 General 89g35.4.7.1 Authorize QoS Resources . 90g35.4.7.1a Resource Reservation with Policy and Charging Control . 90g3ETSI ETSI TS 123 228 V1
43、4.6.0 (2018-01)63GPP TS 23.228 version 14.6.0 Release 145.4.7.2 Enabling of Media Flows 90g35.4.7.3 Disabling of Media Flows . 91g35.4.7.4 Revoke Authorization for IP-Connectivity Access Network and IP Resources 91g35.4.7.5 Indication of IP-Connectivity Access Network bearer release 91g35.4.7.6 Auth
44、orization of IP-Connectivity Access Network bearer modification. 91g35.4.7.7 Indication of IP-Connectivity Access Network bearer modification 92g35.4.7.8 Sharing of Resources for Network Detected Concurrent Sessions . 92g35.4.7.8.1 Network Detected Concurrent Sessions 92g35.4.7.8.2 Initiating Resour
45、ce Sharing for Network Detected Concurrent Sessions 92g35.4.7.8.3 Void. 93g35.4.7.9 Priority sharing for concurrent sessions 93g35.4.8 QoS-Assured Preconditions 93g35.4.9 Event and information distribution . 94g35.4.9.0 General 94g35.4.9.1 Subscription to event notifications 95g35.4.10 Void 97g35.4.
46、11 Signalling Transport Interworking 97g35.4.12 Configuration and Routing principles for Public Service Identities . 97g35.4.12.0 General 97g35.4.12.1 PSIs on the originating side . 97g35.4.12.2 PSIs on the terminating side 97g35.4.12.3 Subdomain based PSIs 98g35.4.12.4 PSI configuration in the HSS
47、98g35.4.12.5 Requests originated by the AS hosting the PSI . 98g35.4.13 Transcoding concepts . 99g35.4a Overview of session flow procedures . 99g35.4a.1 End-to-End session flow procedures 99g35.4a.2 Transit network session flow procedures 102g35.5 Serving-CSCF/MGCF to serving-CSCF/MGCF procedures .
48、104g35.5.0 General 104g35.5.1 (S-S#1) Different network operators performing origination and termination . 104g35.5.2 (S-S#2) Single network operator performing origination and termination . 106g35.5.3 (S-S#3) Session origination with PSTN termination in the same network as the S-CSCF. 109g35.5.4 (S
49、-S#4) Session origination with PSTN termination in a different network from the S-CSCF. . 111g35.6 Origination procedures . 113g35.6.0 General 113g35.6.1 (MO#1) Mobile origination, roaming . 113g35.6.2 (MO#2) Mobile origination, home . 116g35.6.3 (PSTN-O) PSTN origination. 118g35.6.4 (NI-O) Non-IMS Origination procedure from an external SIP client . 119g35.6.5 Application Server Origination Procedure 121g35.6.5.1 (AS-O) Origination at Application Server 121g35.6.5.2 Void. 123g35.6.5.3 S-CSCF selection by I-CSCF for AS Originating call procedures 123g35.7 Termination proce
