1、 ETSI TS 1Digital cellular telecommUniversal Mobile TelIP Multim(3GPP TS 23.2TECHNICAL SPECIFICATION123 228 V13.8.0 (2017mmunications system (Phase elecommunications System (LTE; timedia Subsystem (IMS); Stage 2 .228 version 13.8.0 Release 1317-01) e 2+) (GSM); (UMTS); 13) ETSI ETSI TS 123 228 V13.8
2、.0 (2017-01)13GPP TS 23.228 version 13.8.0 Release 13Reference RTS/TSGS-0223228vd80 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 l
3、a Sous-Prfecture de Grasse (06) N 7803/88 Important notice The present document can be downloaded from: http:/www.etsi.org/standards-search 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 s
4、hall not be modified without the prior written authorization of ETSI. In case of any existing or perceived difference in contents between such versions and/or in print, the only prevailing document is the print of the Portable Document Format (PDF) version kept on a specific network drive within ETS
5、I Secretariat. Users of the present document should be aware that the document may be subject to revision or change of status. Information on the current status of this and other ETSI documents is available at https:/portal.etsi.org/TB/ETSIDeliverableStatus.aspx If you find errors in the present doc
6、ument, please send your comment to one of the following services: https:/portal.etsi.org/People/CommiteeSupportStaff.aspx Copyright Notification No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm except as authorized by w
7、ritten permission of ETSI. The content of the PDF version shall not be modified without the written authorization of ETSI. The copyright and the foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute 2017. All rights reserved. DECTTM, PLUGTESTSTM,
8、UMTSTMand the ETSI logo are Trade Marks of ETSI registered for the benefit of its Members. 3GPPTM and LTE are Trade Marks of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. GSM and the GSM logo are Trade Marks registered and owned by the GSM Association. ETSI
9、ETSI TS 123 228 V13.8.0 (2017-01)23GPP TS 23.228 version 13.8.0 Release 13Intellectual Property Rights 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 ETSI members an
10、d non-members, and can be found in ETSI SR 000 314: “Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect of ETSI standards“, which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web server (https:/ipr.etsi.org/)
11、. Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web server) which are, or may be, or may become, essential to the prese
12、nt document. 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 refe
13、rences to the corresponding ETSI deliverables. The cross reference between GSM, UMTS, 3GPP and ETSI identities can be found 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 no
14、t“, “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 ETSI TS 123 228 V13.8.0 (2017-01)33GPP TS 23.228 ve
15、rsion 13.8.0 Release 13Contents Intellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 14g31 Scope 15g32 References 15g33 Definitions, symbols and abbreviations . 19g33.1 Definitions 19g33.2 Symbols 21g33.3 Abbreviations . 22g34 IP multimedia subsystem concepts . 23g34.0
16、 General . 23g34.1 Relationship to CS domain and the IP-Connectivity Access Network . 24g34.2 IMS services concepts 25g34.2.1 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 informa
17、tion exchanged between Application Servers 25g34.2.1.3.2 Handling by the Application Server 25g34.2.1.3.3 Deletion of services 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
18、Control Interface (ISC) 28g34.2.4a HSS to service platform Interface . 30g34.2.4b S-CSCF Service Control Model 32g34.2.4c 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
19、 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 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 U
20、ser Identities . 37g34.3.3.2 Public User Identities 38g34.3.3.2a Globally Routable User Agent URI (GRUU) . 39g34.3.3.2a.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
21、 number formats . 41g34.3.3.3b Termination of session with the TEL URI format Public User Identity 41g34.3.3.4 Relationship 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 SI
22、P URI resolution in an IM CN subsystem 43g34.3.5.1 ENUM/DNS translation mechanism . 43g34.3.5.2 Handling of Tel URIs 43g34.3.5.3 Handling of SIP URIs representing a telephone number 44g3ETSI ETSI TS 123 228 V13.8.0 (2017-01)43GPP TS 23.228 version 13.8.0 Release 134.3.6 Public Service Identities . 4
23、4g34.4 Signalling concepts. 44g34.5 Mobility related concepts . 45g34.6 Roles of Session Control Functions . 46g34.6.0 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 5
24、0g34.7 Multimedia Resource Function 50g34.7a Media Resource Broker 51g34.8 Security Concepts . 51g34.9 Charging Concepts . 51g34.10 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
25、 (GUP) 52g34.12 Network Address Translation traversal in access network . 52g34.13 Identification of IMS communication Services 52g34.13.1 General 52g34.13.2 Identification of IMS communication Services 52g34.13.3 Identification of IMS applications 54g34.14 Border Control concepts . 55g34.15 IMS in
26、transit network scenarios 56g34.15.1 General concepts . 56g34.15.2 IMS transit network configurations 56g34.15.3 Providing IMS application services in transit network scenarios . 57g34.15a Roaming Architecture for Voice over IMS with Local Breakout . 57g34.16 Support of multimedia telephony . 58g34.
27、16.1 Telephony Application Server 58g34.16.2 Identification of multimedia telephony 58g34.16.3 Session setup principles 58g34.17 Support of short message service . 59g34.17.1 IP Short Message Gateway (IP-SM-GW) . 59g34.18 Support of Number portability . 59g34.18.1 Number portability 59g34.19 Support
28、 of Preferred Circuit Carrier Access and Per 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 60g34.21 Support of Overlap Signalling 60g34.22 Support of Explicit Congestion
29、Notification (ECN) 60g34.22.1 General 60g34.22.2 CS GERAN/UTRAN Interworking at MGCF/IM-MGW . 61g34.22.3 Interworking with non-ECN IP network and/or terminal at IBCF/TrGW 61g34.22.4 Interworking with non-3GPP ECN IP terminal at IBCF/TrGW . 62g34.22.5 ECN support at IMS-ALG/IMS-AGW . 62g34.22.6 ECN s
30、upport at MRFC/MRFP 63g34.22.7 CS GERAN/UTRAN Interworking at the MSC Server enhanced for ICS/MSC Server enhanced for SRVCC with SIP/CS-MGW . 63g34.23 Support of Load Balancing . 63g34.23.1 General 63g34.23.2 Registration-based load balancing of S-CSCFs 63g34.23.3 Registration independent load balan
31、cing of Transit Functions . 64g34.24 Support of Restoration Procedures . 64g34.25 Support of Overload Control 64g34.25.1 General 64g34.25.2 Next-hop monitoring of overload . 64g34.25.3 Filter based Overload Control . 65g3ETSI ETSI TS 123 228 V13.8.0 (2017-01)53GPP TS 23.228 version 13.8.0 Release 13
32、4.26 Support for Business Trunking . 65g35 IP multimedia subsystem procedures . 65g35.0 General . 65g35.0a 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 t
33、o Proxy-CSCF discovery . 66g35.1.1.0 General 66g35.1.1.1 DHCP/DNS procedure for P-CSCF discovery 66g35.1.1.2 Void. 67g35.1.2 Procedures related to Serving-CSCF assignment . 67g35.1.2.1 Assigning a Serving-CSCF for a user . 67g35.1.2.2 Cancelling the Serving-CSCF assignment 68g35.1.2.3 Void. 68g35.1.
34、3 Procedures related to Interrogating-CSCF 68g35.1.4 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 . 69g35.2.0 General 69g35.2.1 Requirements consi
35、dered for registration . 69g35.2.1a Implicit Registration . 70g35.2.1a.0 General 70g35.2.1a.1 Implicit Registration for UE without ISIM or IMC 72g35.2.2 Registration flows . 72g35.2.2.1 Requirements to consider for registration . 72g35.2.2.2 Assumptions 72g35.2.2.3 Registration information flow User
36、 not registered . 73g35.2.2.4 Re-Registration information flow User currently registered 74g35.2.2.5 Stored information. . 76g35.3 Application level de-registration procedures 77g35.3.1 Mobile initiated de-registration. 77g35.3.2 Network initiated de-registration 78g35.3.2.0 General 78g35.3.2.1 Netw
37、ork Initiated Application (SIP) De-registration, Registration Timeout 79g35.3.2.2 Network Initiated Application (SIP) De-registration, Administrative. 79g35.3.2.2.0 General 79g35.3.2.2.1 Network Initiated De-registration by HSS, administrative 80g35.3.2.2.2 Network Initiated De-registration by Servi
38、ce Platform . 80g35.4 Procedures for IP multi-media sessions 82g35.4.0 General 82g35.4.1 Bearer interworking concepts . 82g35.4.2 Interworking with Internet 82g35.4.2a IP version interworking 82g35.4.3 Interworking with PSTN . 83g35.4.4 Requirements for IP multi-media session control . 84g35.4.5 Ses
39、sion Path Information 84g35.4.5.1 Session Path Information during Registration and Session Initiation . 84g35.4.5.2 P-CSCF in the Session Path 84g35.4.5.3 S-CSCF in the Session Path 85g35.4.6 End-user preferences and terminal capabilities . 85g35.4.6.0 General 85g35.4.6.1 Objectives 85g35.4.6.2 End-
40、user expectations . 85g35.4.6.3 Mechanism for bearer establishment . 86g35.4.6.4 Session progress indication to the originating UE 88g35.4.7 Interaction between QoS and session signalling . 88g35.4.7.0 General 88g35.4.7.1 Authorize QoS Resources . 89g35.4.7.1a Resource Reservation with Policy and Ch
41、arging Control . 89g3ETSI ETSI TS 123 228 V13.8.0 (2017-01)63GPP TS 23.228 version 13.8.0 Release 135.4.7.2 Enabling of Media Flows 89g35.4.7.3 Disabling of Media Flows . 90g35.4.7.4 Revoke Authorization for IP-Connectivity Access Network and IP Resources 90g35.4.7.5 Indication of IP-Connectivity Ac
42、cess Network bearer release 90g35.4.7.6 Authorization of IP-Connectivity Access Network bearer modification. 90g35.4.7.7 Indication of IP-Connectivity Access Network bearer modification 91g35.4.7.8 Sharing of Resources for Network Detected Concurrent Sessions . 91g35.4.7.8.1 Network Detected Concurr
43、ent Sessions 91g35.4.7.8.2 Initiating Resource Sharing For Network Detected Concurrent Sessions . 91g35.4.7.8.3 Void. 91g35.4.7.9 Priority sharing for concurrent sessions 92g35.4.8 QoS-Assured Preconditions 92g35.4.9 Event and information distribution . 93g35.4.9.0 General 93g35.4.9.1 Subscription t
44、o event notifications 94g35.4.10 Void 96g35.4.11 Signalling Transport Interworking 96g35.4.12 Configuration and Routing principles for Public Service Identities . 96g35.4.12.0 General 96g35.4.12.1 PSIs on the originating side . 96g35.4.12.2 PSIs on the terminating side 96g35.4.12.3 Subdomain based P
45、SIs 97g35.4.12.4 PSI configuration in the HSS 97g35.4.12.5 Requests originated by the AS hosting the PSI . 97g35.4.13 Transcoding concepts . 98g35.4a Overview of session flow procedures . 98g35.4a.1 End-to-End session flow procedures 98g35.4a.2 Transit network session flow procedures 101g35.5 Servin
46、g-CSCF/MGCF to serving-CSCF/MGCF procedures . 103g35.5.0 General 103g35.5.1 (S-S#1) Different network operators performing origination and termination . 103g35.5.2 (S-S#2) Single network operator performing origination and termination . 105g35.5.3 (S-S#3) Session origination with PSTN termination in
47、 the same network as the S-CSCF. 108g35.5.4 (S-S#4) Session origination with PSTN termination in a different network from the S-CSCF. . 110g35.6 Origination procedures . 112g35.6.0 General 112g35.6.1 (MO#1) Mobile origination, roaming . 112g35.6.2 (MO#2) Mobile origination, home . 115g35.6.3 (PSTN-O
48、) PSTN origination. 117g35.6.4 (NI-O) Non-IMS Origination procedure from an external SIP client . 118g35.6.5 Application Server Origination Procedure 120g35.6.5.1 (AS-O) Origination at Application Server 120g35.6.5.2 Void. 122g35.6.5.3 S-CSCF selection by I-CSCF for AS Originating call procedures 12
49、2g35.7 Termination procedures 124g35.7.0 General 124g35.7.1 (MT#1) Mobile termination, roaming . 124g35.7.2 (MT#2) Mobile termination, home . 127g35.7.2a (MT#3) Mobile termination, CS Domain roaming . 129g35.7.3 (PSTN-T) PSTN termination 129g35.7.4 (NI-T) Non-IMS Termination to an external SIP client 131g35.7.5 (AS-T#1) PSI based Application Server termination direct . 133g35.7.6 (AS-T#2) PSI based Application Server termination indirect 133g35.7.7 (AS-T#3) PSI based Application Server termination DNS routing . 134g35.7.8 (AST#4) Termination at Application Server ba
