1、 ETSI TS 129 162 V14.2.0 (2017-04) Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; Interworking between the IM CN subsystem and IP networks (3GPP TS 29.162 version 14.2.0 Release 14) TECHNICAL SPECIFICATION ETSI ETSI TS 129 162 V14
2、.2.0 (2017-04)13GPP TS 29.162 version 14.2.0 Release 14Reference RTS/TSGC-0329162ve20 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
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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. ETS
9、I ETSI TS 129 162 V14.2.0 (2017-04)23GPP TS 29.162 version 14.2.0 Release 14Intellectual 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
10、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 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 pre
12、sent 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 re
13、ferences 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
14、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 ETSI TS 129 162 V14.2.0 (2017-04)33GPP TS 29.162
15、version 14.2.0 Release 14Contents Intellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 6g31 Scope 7g32 References 7g33 Definitions, symbols and abbreviations . 9g33.1 Definitions 9g33.2 Symbols 10g33.3 Abbreviations . 10g34 General . 11g34.1 General interworking overvi
16、ew 11g34.2 Interworking scenarios . 11g34.2.1 UE with 3GPP SIP profile capability connecting to an external SIP device. 12g35 Network characteristics 12g35.1 Key characteristics of IP Multimedia Networks . 12g35.2 Key characteristics of UMTS IM CN Subsystem . 12g36 Interworking Reference Model for c
17、ontrol plane interworking and user plane interworking 12g36.0 Reference Model 12g36.1 Interworking Functional Entities 14g36.1.1 IBCF . 14g36.1.2 IMS-ALG 14g36.1.3 TrGW 14g36.1.4 Acces Transfer Control Function 14g36.1.5 Acces Transfer GateWay 14g37 Control plane interworking 14g37.1 SIP with 3GPP P
18、rofile to Standard SIP Interworking 14g37.2 Additional interworking of protocols associated with services 15g38 User Plane Interworking . 15g38.1 Overview 15g38.2 Void 15g38.3 Void 15g39 IMS-ALG and TrGW functionality for NAPT and IP Version Interworking 15g39.1 Control plane interworking. 15g39.1.1
19、 Session Set-up . 15g39.1.1.0 General 15g39.1.1.1 Receipt of the first SDP offer 15g39.1.1.2 Receipt of the first SDP answer 16g39.1.2 Void 16g39.1.3 Change of connection information 16g39.1.4 Interworking of SIP messages 16g39.1.5 Modification of SDP bandwidth information for IP version interworkin
20、g . 17g39.2 User plane transport 17g39.2.1 Payload transport 17g39.2.2 IP header interworking 18g39.2.2.1 IPv4 to IPv6 18g39.2.2.2 Abnormal cases . 19g39.2.2.3 IPv6 to IPv4 20g39.2.2.4 Abnormal cases . 21g39.2.3 Fragmentation . 21g39.2.4 Abnormal cases . 22g3ETSI ETSI TS 129 162 V14.2.0 (2017-04)43G
21、PP TS 29.162 version 14.2.0 Release 1410 IBCF TrGW Interactions . 22g310.1 Overview 22g310.1.1 General 22g310.1.2 Network model . 22g310.1.3 Example Call Flow . 22g310.1.3.1 Basic Procedures . 22g310.1.3.1.1 Call Establishment . 22g310.1.3.1.2 Call Release . 25g310.2 Main Functions supported at the
22、Ix Interface . 25g310.2.0 Introduction. 25g310.2.1 NAPT and IP version interworking 26g310.2.2 Gate Management . 26g310.2.3 RTCP Handling 26g310.2.4 IP Realm Indication 27g310.2.5 Media Control . 27g310.2.5.1 General 27g310.2.5.2 Handling of common codec parameters 34g310.2.5.3 EVS speech codec para
23、meters handling 34g310.2.5.4 Rate adaptation for media endpoints . 34g310.2.6 Media Inactivity Detection . 35g310.2.7 QoS Packet Marking (differentiated services) 35g310.2.8 Hanging Termination Detection . 36g310.2.9 Bandwidth Policing. 36g310.2.10 IMS end-to-end media plane security . 36g310.2.10.1
24、 End-to-end security for RTP based media 36g310.2.10.2 End-to-end security for TCP based media using TLS . 36g310.2.11 Through-Connection . 37g310.2.11.1 General 37g310.2.11.2 Through-connect control procedures considering the P-Early-Media header field . 37g310.2.12 Emergency Call 39g310.2.13 Expli
25、cit Congestion Notification support . 39g310.2.13.1 General 39g310.2.13.2 Incoming SDP offer with ECN . 39g310.2.13.3 Incoming SDP offer without ECN 40g310.2.13.3a Detection of ECN failures by TrGW . 41g310.2.13.4 Interworking with non-3GPP ECN IP terminal. 41g310.2.13.4.1 Support for additional ECN
26、 parameters 41g310.2.13.4.2 Incoming SDP offer from external IP network with ECN . 41g310.2.13.4.3 Incoming SDP offer from the IMS with ECN . 41g310.2.13.5 Message sequence chart 43g310.2.13.5.1 ECN support requested (ECN endpoint) . 43g310.2.13.5.2 ECN Active Indicated (ECN transparent) . 43g310.2.
27、13.5.3 ECN Failure Indication (ECN endpoint) . 44g310.2.14 Optimal Media Routeing 44g310.2.15 IP Realm Availability . 44g310.2.16 Access Transfer procedures with media anchored in ATGW . 44g310.2.17 Multimedia Priority Service (MPS) Support 45g310.2.17.1 General 45g310.2.17.2 TrGW Resource Congestio
28、n in ADD response, request is queued . 45g310.2.17.3 TrGW Resource Congestion in ADD response, IBCF seizes new TrGW. 46g310.2.17.4 TrGW Priority Resource Allocation . 46g310.2.17.5 TrGW Priority User Data marking 47g310.2.17.6 TrGW Priority Modification . 47g310.2.18 Coordination of Video Orientatio
29、n . 47g310.2.18.1 General 47g310.2.18.2 Message sequence chart 48g310.2.19 Generic image attributes . 49g310.2.19.1 General 49g310.2.19.2 Indication of generic image attributes . 50g310.2.20 Interactive Connectivity Establishment (ICE) 51g310.2.21 MSRP handling . 51g310.2.22 Alternative connection (
30、ALTC) addresses management 51g3ETSI ETSI TS 129 162 V14.2.0 (2017-04)53GPP TS 29.162 version 14.2.0 Release 1410.2.23 Video Region-of-Interest (ROI) 52g310.2.23.1 General 52g310.2.23.2 “Far End Camera Control“ mode 52g310.2.23.2.1 General 52g310.2.23.2.2 Message sequence chart. 52g310.2.23.3 “Predef
31、ined ROI“ mode 53g310.2.23.3.1 General 53g310.2.23.3.2 Message sequence chart. 53g310.2.23.4 “Arbitrary ROI“ mode . 53g310.2.23.4.1 General 53g310.2.23.4.2 Message sequence chart. 54g310.2.24 SDP Capability Negotiation (SDPCapNeg) 54g310.2.24.1 General 54g310.2.24.2 Message sequence chart 55g310.2.2
32、4.2.1 Audit SDPCapNeg Supported Capabilities . 55g310.2.25 WebRTC Media Plane Optimization 56g310.2.25.1 General 56g310.2.25.2 SDP offer handling 56g310.2.25.3 SDP answer handling 56g310.2.26 RTP-level pause and resume . 56g310.2.27 RTCP Codec Control Commands and Indications 56g310.3 Void 57g310.4
33、Procedures 57g310.4.1 Call related Procedures . 57g310.4.1.1 Reserve TrGW Connection Point 57g310.4.1.2 Configure TrGW Connection Point 62g310.4.1.3 Reserve and Configure TrGW Connection Point 67g310.4.1.4 Release TrGW Termination 73g310.4.1.5 IP Bearer Released 73g310.4.1.6 Media Inactivity Detecti
34、on 74g310.4.1.7 Termination heartbeat indication 74g310.4.1.8 Change Through-Connection 75g310.4.1.9 ECN Failure Indication . 75g310.4.1.10 Change Flow Direction . 76g310.4.1.11 ICE Connectivity Check Result Notification 76g310.4.1.12 ICE New Peer Reflexive Candidate Notification 77g310.4.2 Non Call
35、 related Procedures . 77g3Annex A (informative): Void. 79g3Annex B (informative): Change history . 80g3History 81g3ETSI ETSI TS 129 162 V14.2.0 (2017-04)63GPP TS 29.162 version 14.2.0 Release 14Foreword This Technical Specification has been produced by the 3rdGeneration Partnership Project (3GPP). T
36、he contents of the present document are subject to continuing work within the TSG and may change following formal TSG approval. Should the TSG modify the contents of the present document, it will be re-released by the TSG with an identifying change of release date and an increase in version number a
37、s follows: Version x.y.z where: x the first digit: 1 presented to TSG for information; 2 presented to TSG for approval; 3 or greater indicates TSG approved document under change control. y the second digit is incremented for all changes of substance, i.e. technical enhancements, corrections, updates
38、, etc. z the third digit is incremented when editorial only changes have been incorporated in the document. ETSI ETSI TS 129 162 V14.2.0 (2017-04)73GPP TS 29.162 version 14.2.0 Release 141 Scope The IM CN subsystem interworks with the external IP networks through the Mb reference point. This documen
39、t details the interworking between the IM CN subsystem and external IP networks for IM service support. It addresses the issues of control plane interworking and, user plane interworking for specific interworking use cases. Clause 10 describes the IMS-Ix interface requirements in the form of Use Cas
40、es which require H.248 protocol procedures. Subclause 10.4 then details the additional Information Elements required to perform the specific procedures. The IP version Interworking, between IP version 4 (IETF RFC 791 9 ) and IP version 6 (IETF RFC 2460 10 ) detailed in terms of the processes and pro
41、tocol mappings required in order to support both IMS originated and terminated calls. 2 References The following documents contain provisions which, through reference in this text, constitute provisions of the present document. References are either specific (identified by date of publication, editi
42、on number, version number, etc.) or non-specific. For a specific reference, subsequent revisions do not apply. For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including a GSM document), a non-specific reference implicitly refers to the latest
43、version of that document in the same Release as the present document. 1 3GPP TS 24.229: “Internet Protocol (IP) multimedia call control protocol based on Session Initiation Protocol (SIP) and Session Description Protocol (SDP); Stage 3“. 2 IETF RFC 3261: “SIP: Session Initiation Protocol“. 3 3GPP TS
44、 23.221: “Architectural requirements“. 4 3GPP TS 29.061: “Interworking between the Public Land Mobile Network (PLMN) supporting packet based services and Packet Data Networks (PDN)“. 5 3GPP TS 23.002: “Network architecture“. 6 Void. 7 3GPP TR 21.905: “Vocabulary for 3GPP Specifications“. 8 3GPP TS 2
45、3.228: “IP Multimedia Subsystem (IMS); Stage 2“. 9 IETF RFC 791: “Internet Protocol“. 10 IETF RFC 2460: “Internet Protocol, Version 6 (IPv6) Specification“. 11 IETF RFC 2766: “Network Address Translation - Protocol Translation (NAT-PT)“. 12 IETF RFC 2663: “IP Network Address Translator (NAT) Termino
46、logy and Considerations“. 13 3GPP TR 29.962 version 6.1.0: “Signalling interworking between the 3GPP profile of the Session Initiation Protocol (SIP) and non-3GPP SIP usage“. 14 Void. 15 Void. 16 Void. ETSI ETSI TS 129 162 V14.2.0 (2017-04)83GPP TS 29.162 version 14.2.0 Release 1417 Void. 18 IETF RF
47、C 792: “Internet Control Message Protocol“. 19 IETF RFC 2463: “Internet Control Message Protocol (ICMPv6) for the Internet Protocol Version 6“. 20 Void. 21 Void. 22 Void. 23 Void. 24 Void. 25 3GPP TS 29.238: “Interconnection Border Control Functions Transition Gateway; H.248 Profile; Stage 3“. 26 IT
48、U-T Recommendation H.248.1 (05): “Gateway Control Protocol: Version 3“. 27 Void. 28 3GPP TS 23.205: “Bearer-independent circuit-switched core network; Stage 2“. 29 3GPP TS 29.235: “Interworking between SIP-I based circuit-switched core network and other networks“. 30 Void. 31 IETF RFC 2474: “Definit
49、ion of the Differentiated Services Field (DS Field) in the IPv4 and IPv6 Headers“. 32 3GPP TS 33.328: “IMS Media Plane Security“. 33 IETF RFC 4568: “Session Description Protocol (SDP) Security Descriptions for Media Streams“. 34 IETF RFC 3711: “The Secure Real-time Transport Protocol (SRTP)“. 35 IETF RFC 5124: “Extended Secure RTP Profile for Real-time Transport Control Protocol (RTCP)-Based Feedback (RTP/SAVPF)“. 36 3GPP TS 26.114: “IP Multimedia Subsystem (IMS); Multimedia Telephony; Media
