ETSI TS 129 334-2016 Digital cellular telecommunications system (Phase 2+) Universal Mobile Telecommunications System (UMTS) LTE IMS Application Level Gateway (IMS-ALG) - IMS Acces.pdf

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1、 ETSI TS 129 334 V13.4.0 (2016-04) Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; IMS Application Level Gateway (IMS-ALG) - IMS Access Gateway (IMS-AGW); Iq Interface; Stage 3 (3GPP TS 29.334 version 13.4.0 Release 13) TECHNICAL S

2、PECIFICATION ETSI ETSI TS 129 334 V13.4.0 (2016-04)13GPP TS 29.334 version 13.4.0 Release 13Reference RTS/TSGC-0429334vd40 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 As

3、sociation but non lucratif enregistre la 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 p

4、rint versions of the present document shall 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

5、 on a specific network drive within ETSI 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.asp

6、x If you find errors in the present document, 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

7、and microfilm except as authorized by written 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 2016. All

8、 rights reserved. DECTTM, PLUGTESTSTM, 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

9、and owned by the GSM Association. ETSI ETSI TS 129 334 V13.4.0 (2016-04)23GPP TS 29.334 version 13.4.0 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

10、 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 respect of ETSI standards“, which is available from the ETSI Secretariat. Latest updates are available on the

11、 ETSI Web server (https:/ipr.etsi.org/). 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

12、, or may become, essential to the present 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. Th

13、ese 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 http:/webapp.etsi.org/key/queryform.asp. Modal verbs terminology In the present document “shall“, “shall not“, “should“, “should no

14、t“, “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 ETSI TS 129

15、334 V13.4.0 (2016-04)33GPP TS 29.334 version 13.4.0 Release 13Contents Intellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 6g31 Scope 7g32 References 8g33 Definitions, symbols and abbreviations . 11g33.1 Definitions 11g33.2 Symbols 12g33.3 Abbreviations . 12g34 Applic

16、ability . 13g34.1 Architecture 13g35 Profile Description . 13g35.1 Profile Identification. 13g35.2 Summary 13g35.3 Gateway Control Protocol Version 14g35.4 Connection model. 14g35.5 Context attributes . 14g35.6 Terminations . 15g35.6.1 Termination names . 15g35.6.1.1 IP Termination 15g35.6.1.1.1 ABN

17、F Coding Overview and prose specification . 15g35.6.1.1.2 ASN.1 Coding Overview and prose specification . 15g35.6.2 Multiplexed terminations 16g35.7 Descriptors . 16g35.7.1 TerminationState Descriptor . 16g35.7.2 Stream Descriptor . 17g35.7.2.0 General 17g35.7.2.1 LocalControl Descriptor 17g35.7.3 E

18、vents descriptor 18g35.7.4 EventBuffer descriptor 20g35.7.5 Signals descriptor 20g35.7.6 DigitMap descriptor 22g35.7.7 Statistics descriptor . 22g35.7.8 ObservedEvents descriptor . 22g35.7.9 Topology descriptor 22g35.7.10 Error descriptor . 23g35.8 Command API 26g35.8.1 Add . 26g35.8.2 Modify 26g35.

19、8.3 Subtract. 27g35.8.4 Move . 27g35.8.5 AuditValue 27g35.8.6 AuditCapabilities 27g35.8.7 Notify 28g35.8.8 ServiceChange 28g35.8.9 Manipulating and auditing context attributes 30g35.9 Generic command syntax and encoding . 30g35.10 Transactions . 30g35.11 Messages 31g35.12 Transport 31g35.13 Security

20、 32g35.14 Packages . 32g35.14.1 Mandatory Packages . 32g3ETSI ETSI TS 129 334 V13.4.0 (2016-04)43GPP TS 29.334 version 13.4.0 Release 135.14.2 Optional Packages 34g35.14.3 Package usage information . 36g35.14.3.1 Generic (g) 36g35.14.3.2 Base root (root) . 37g35.14.3.3 Differentiated Services (ds) .

21、 38g35.14.3.4 Gate Management (gm) . 38g35.14.3.5 Traffic management (tman) . 40g35.14.3.6 Inactivity Timer (it) . 41g35.14.3.7 IP Domain Connection (ipdc) . 41g35.14.3.8 Media Gateway Overload Control Package (ocp) . 42g35.14.3.9 Hanging Termination Detection (hangterm) . 42g35.14.3.10 Media Gatewa

22、y Resource Congestion handling Package (chp) 43g35.14.3.11 IP Realm Availability (ipra) 43g35.14.3.12 IP NAPT Traversal (ipnapt) 44g35.14.3.13 RTCP Handling Package (rtcph) . 44g35.14.3.14 Application Data Inactivity Detection (adid) 45g35.14.3.15 Explicit Congestion Notification for RTP-over-UDP Su

23、pport (ecnrous) 46g35.14.3.16 MG Act-as STUN Server (mgastuns) . 48g35.14.3.17 Originate STUN Continuity Check (ostuncc) . 49g35.14.3.18 TCP basic connection control (tcpbcc) . 50g35.14.3.19 TLS basic session control (tlsbsc) . 51g35.14.3.20 Stream endpoint interlinkage (seplink) . 52g35.14.3.21 MG

24、located Bearer Level ALG (mgbalg) . 53g35.14.3.22 STUN Consent Freshness (stnconfres) 53g35.14.3.23 Media Grouping (mgroup) 55g35.14.3.24 SCTP basic connection control package (sctpbcc) 56g35.14.3.25 SCTP Re-configuration Stream Reset (sctpreset) . 57g35.15 Mandatory support of SDP and Annex C infor

25、mation elements 59g35.16 Optional support of SDP and Annex C information elements 62g35.17 Procedures 67g35.17.1 Formats and Codes . 67g35.17.2 Call Related Procedures 73g35.17.2.1 General 73g35.17.2.2 Reserve AGW Connection Point . 73g35.17.2.3 Configure AGW Connection Point . 79g35.17.2.4 Reserve

26、and Configure AGW Connection Point . 87g35.17.2.5 Release AGW Termination . 96g35.17.2.6 Termination Heartbeat Indication . 96g35.17.2.7 IP Bearer Released 97g35.17.2.8 Media Inactivity Notification 97g35.17.2.9 Change Through Connection 97g35.17.2.10 Change Flow Direction . 98g35.17.2.11 ECN Failur

27、e Indication . 98g35.17.2.12 ICE Connectivity Check Result Notification 99g35.17.2.13 ICE New Peer Reflexive Candidate Notification 99g35.17.2.14 Notify TCP connection establishment Failure Indication . 100g35.17.2.15 Notify (D)TLS session establishment Failure Indication 100g35.17.2.16 STUN Consent

28、 Freshness Test Failure Notification . 100g35.17.2.17 Notify SCTP Stream Reset 101g35.17.2.18 Notify SCTP Stream Reset Result 101g35.17.3 Non-Call Related Procedures 102g35.17.3.1 General 102g35.17.3.2 IMS-AGW Out Of Service 102g35.17.3.3 IMS-AGW Communication Up 103g35.17.3.4 IMS-AGW Restoration .

29、103g35.17.3.5 IMS-AGW Register 104g35.17.3.6 IMS-AGW Re-Register . 104g35.17.3.7 IMS-ALG Ordered Re-register . 105g35.17.3.8 IMS-ALG Restoration . 105g35.17.3.9 IMS-ALG Out of Service 106g35.17.3.10 Audit Value . 106g35.17.3.11 Command Rejected . 108g3ETSI ETSI TS 129 334 V13.4.0 (2016-04)53GPP TS 2

30、9.334 version 13.4.0 Release 135.17.3.12 AGW Capability Change 108g35.17.3.13 IMS-AGW Resource Congestion Handling Activate . 108g35.17.3.14 IMS-AGW Resource Congestion Handling Indication 109g35.17.3.15 Inactivity Timeout Activation . 109g35.17.3.16 Inactivity Timeout Indication . 110g35.17.3.17 Re

31、alm Availability Change Activation 110g35.17.3.18 Realm Availability Change Indication . 110g35.17.3.19 Termination Out Of Service 111g3Annex A (informative): Change history . 112g3History 114g3ETSI ETSI TS 129 334 V13.4.0 (2016-04)63GPP TS 29.334 version 13.4.0 Release 13Foreword This Technical Spe

32、cification has been produced by the 3rdGeneration Partnership Project (3GPP). The 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

33、 with an identifying change of release date and an increase in version number as 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

34、for all changes of substance, i.e. technical enhancements, corrections, updates, etc. z the third digit is incremented when editorial only changes have been incorporated in the document. ETSI ETSI TS 129 334 V13.4.0 (2016-04)73GPP TS 29.334 version 13.4.0 Release 131 Scope The present document descr

35、ibes the protocol to be used on the IMS Application Level Gateway (ALG) IMS Access Gateway (IMS-AGW) interface. The basis for this protocol is the H.248 protocol as specified in ITU-T. The IMS architecture is described in 3GPP TS 23.228 2. The underlying reference model and stage 2 information is de

36、scribed in Annex G of 3GPP TS 23.228 2 and in 3GPP TS 23.334 23. This specification describes the application of H.248 on the Iq interface (see Figure 1). Required extensions use the H.248 standard extension mechanism. In addition certain aspects of the base protocol H.248 are not needed for this in

37、terface and thus excluded by this profile. Figure 1: Reference model for IMS access The reference model for the IMS-ALG and the IMS-AGW supporting the ATCF/ATGW function is shown in Figure 1a below. UEIMS-AGW (ATGW)P-CSCFIMS-ALG(ATCF)NATIqIMSI/S-CSCFSCC ASMw/MxMSC ServerCS-MGWMcMbMbMw/I2GmPS accessC

38、S accessMbPS-to-CS Access TransferFigure 1a: Reference model for IMS-ALG/IMS-AGW with ATCF/ATGW function See 3GPP TS 23.237 38 subclause 5.2 for a comprehensive description of the reference model. The reference model for the P-CSCF enhanced for WebRTC (eP-CSCF) and the IMS-AGW enhanced for WebRTC (e

39、IMS-AGW) to support WebRTC client access to IMS is shown in Figure 1b as below, see 3GPP TS 23.228 2 Annex U for a comprehensive description of the reference model. P-CSCF GmMediaIqIMS-ALGIMS Access GatewayNATUEIP-CANScope of this specification.ETSI ETSI TS 129 334 V13.4.0 (2016-04)83GPP TS 29.334 v

40、ersion 13.4.0 Release 13PCEFNATIP-C AN WWSFW1 W2 UEWICI/S-CSCF eIMS-AGWIq Mw eP-CSCFH/V-PCRFGx Rx W3 IMS-ALGWAF W4 W5 Figure 1b: Reference Architecture for eP-CSCF/eIMS-AGW supporting WebRTC access to IMS NOTE: The presence of dashed elements in the figure depends on the configuration. PCC functiona

41、l elements are present only for EPC access with QoS. The corresponding PCC elements for fixed access are also optionally supported but not shown. The NAT in figure 1b is meant for non-cellular access to IMS. 2 References The following documents contain provisions which, through reference in this tex

42、t, constitute provisions of the present document. References are either specific (identified by date of publication, edition 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 ca

43、se of a reference to a 3GPP document (including a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same Release as the present document. 1 3GPP TR 21.905: “Vocabulary for 3GPP Specifications“. 2 3GPP TS 23.228: “IP Multimedia Subsystem (IMS); St

44、age 2“. 3 ETSI TS 183 018 V3.5.1 (2009-07): “Telecommunications and Internet converged Services and Protocols for Advanced Networking (TISPAN); Resource and Admission Control: H.248 Profile Version 3 for controlling Border Gateway Functions (BGF) in the Resource and Admission Control Subsystem (RACS

45、); Protocol specification“. 4 ITU-T Recommendation H.248.37 (06/2008): “Gateway control protocol: IP NAPT traversal package“. 5 ITU-T Recommendation H.248.57 (10/2014): “Gateway control protocol: RTP Control Protocol Package“. 6 ITU-T Recommendation H.248.43 (06/2008): “Gateway control protocol: Gat

46、e Management and Gate Control packages“. 7 ITU-T Recommendation H.248.53 (03/2009): “Gateway control protocol: Traffic management packages“. 8 ITU-T Recommendation H.248.41 Amendment 1 (06/2008): “Gateway control protocol: IP domain connection package: IP Realm Availability Package“. ETSI ETSI TS 12

47、9 334 V13.4.0 (2016-04)93GPP TS 29.334 version 13.4.0 Release 139 ITU-T Recommendation H.248.36 (09/2005): “Gateway control protocol: Hanging Termination Detection package“. 10 ITU-T Recommendation H.248.1 (05/2002): “Gateway Control Protocol: Version 2“ including the Corrigendum1 for Version 2 (03/

48、04). 11 ITU-T Recommendation H.248.14 (03/2009): “Gateway control protocol: Inactivity timer package“. 12 ITU-T Recommendation H.248.52 (06/2008): “Gateway control protocol: QoS support packages“. 13 ITU-T Recommendation H.248.11 (11/2002): “Gateway control protocol: Media gateway overload control p

49、ackage“. Inclusive Corrigendum 1 (06/2008) to H.248.11 “ Gateway control protocol: Media gateway overload control package: Clarifying MG-overload event relationship to ADD commands“. 14 ITU-T Recommendation H.248.10 (07/2001): “Media gateway resource congestion handling package“. 15 IETF RFC 5234 (2008): “Augmented BNF for Syntax Specifications: ABNF“. 16 IETF RFC 4960 (2007): “Stream control transmission protocol“. 17 IETF RFC 4566 (2006): “SDP: Session Description Protocol“. 18 IETF RFC 4975 (2007): “The M