1、 ETSI TR 129 903 V6.0.0 (2004-12)Technical Report Universal Mobile Telecommunications System (UMTS);Feasibility study on SS7 signalling transportationin the core network with SCCP-User Adaptation (SUA)(3GPP TR 29.903 version 6.0.0 Release 6)ETSI ETSI TR 129 903 V6.0.0 (2004-12) 1 3GPP TR 29.903 vers
2、ion 6.0.0 Release 6 Reference RTR/TSGN-0429903v600 Keywords 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 de Grasse (06) N 7803/88
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8、.903 version 6.0.0 Release 6 Intellectual 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 and non-members, and can be found in ETSI SR 00
9、0 314: “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 (http:/webapp.etsi.org/IPR/home.asp). Pursuant to the ETSI IPR Poli
10、cy, 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 present document. Foreword This Tech
11、nical Report (TR) 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 deliv
12、erables. The cross reference between GSM, UMTS, 3GPP and ETSI identities can be found under http:/webapp.etsi.org/key/queryform.asp . ETSI ETSI TR 129 903 V6.0.0 (2004-12) 3 3GPP TR 29.903 version 6.0.0 Release 6 Contents Intellectual Property Rights2 Foreword.2 Foreword.5 1 Scope 6 2 References 6 2
13、.1 Normative References 6 2.2 Informative References 7 3 Definitions and Abbreviations8 3.1 Definitions8 3.2 Abbreviations .8 4 Introduction 9 5 SUA Overview .9 5.1 Sigtran Background9 5.2 SUA Functionality10 5.3 Mapping Between SCCP Messages and SUA Messages .11 5.4 Status in IETF.11 6 M3UA Overvie
14、w12 6.1 M3UA Functionality 12 6.2 M3UA Implementation 12 6.3 M3UA Adoption in 3GPP 13 7 SUA Implementation13 7.1 SUA In an All IP Environment 13 7.1.1 Architecture 14 7.1.2 Routing SUA Messages in an Intra-PLMN Environment.15 7.1.3 Routing SUA Messages in an Inter-PLMN Environment.16 7.1.4 Message S
15、egmentation .16 7.2 Interworking with Legacy SS7 Network16 7.2.1 Architecture 16 7.2.2 Global Title Management .17 7.2.3 Message Segmentation .17 7.2.4 SUA Interworking with SCCP Network Management Function 17 7.2.5 AMF implementation example in interworking with legacy SS7 network.18 7.2.5.1 Point
16、Codes Example 18 7.3 Interworking with SCCP/M3UA20 7.3.1 Architecture 20 7.3.2 Global Title management20 7.3.3 Message Segmentation .20 7.3.4 SUA Interworking with SCCP Network Management Function 20 7.3.5 Interworking in native SS7 networks21 7.3.6 Interworking in SS7 and SigTran Networks .21 7.3.7
17、 Interworking in 3GPP networks25 7.3.8 SCCP and SUA interworking in detail .26 7.3.8.1 Establishment of SUA connectivity 27 7.3.8.2 SEP Failover .27 7.3.8.3 Successful ASP Failover Scenario 28 7.3.9 Interworking Conclusions.28 8 Services Impact 28 8.1 Calling line identification presentation (CLIP)
18、28 8.2 Calling line identification restriction (CLIR) .28 8.3 Connected line identification presentation (COLP) .28 8.4 Connected line identification restriction (COLR) 28 ETSI ETSI TR 129 903 V6.0.0 (2004-12) 4 3GPP TR 29.903 version 6.0.0 Release 6 8.5 Call Forwarding Unconditional (CFU).29 8.6 Ca
19、ll Forwarding on mobile subscriber Busy (CFB) .29 8.7 Call Forwarding on No Reply (CFNRy) 29 8.8 Call Forwarding on mobile subscriber Not Reachable (CFNRc) .29 8.9 Call Waiting (CW) .29 8.10 Call hold (HOLD) 29 8.11 Multiparty services (MPTY) 29 8.12 Closed User Group .29 8.13 Advice of Charge servi
20、ces29 8.14 Barring of All Outgoing Calls (BAOC) .29 8.15 Barring of Outgoing International Calls (BOIC)29 8.16 Barring of Outgoing International Calls except those directed to the Home PLMN Country (BOIC-exHC) .29 8.17 Barring of All Incoming Calls (BAIC).30 8.18 Barring of Incoming Calls when roami
21、ng outside the home PLMN country (BIC-Roam)30 8.19 Explicit Call Transfer (ECT)30 8.20 Completion of Calls to Busy Subscriber (CCBS).30 8.21 Support of Private Numbering Plan (SPNP) 30 8.22 Multiple Subscriber Profile (MSP).30 8.23 enhanced Multi-Level Priority and Pre-emption (eMLPP) 30 8.24 SMS30
22、8.25 CAMEL30 8.26 Mobile Number Portability.31 9 Security.31 10 Network Evolution and Interworking Scenarios 32 11 Benefits and Drawbacks.33 11.1 Benefits: .33 11.1.1 Benefits perceiveded by some companies: .33 11.1.2 Benefits agreed by all companies .33 11.2 Drawbacks34 11.2.1 Drawbacks outlined by
23、 some companies 34 11.2.2 Drawbacks agreed by all companies.34 11.3 Neutral Points agreed by all companies .34 12 Open Issues 34 13 Conclusion35 14 Work Plan.35 Annex A: Procedure for Message Routing with DNS/ENUM36 A.1 Routing Using Provided E.164 (MSISDN) Number36 A.2 Routing Using Provided E.212
24、(IMSI) Number.36 A.2.1 Routing using E.214 addressing information .36 A.2.2 Routing using E.212 addressing information .37 Annex B: Document History.39 History 40 ETSI ETSI TR 129 903 V6.0.0 (2004-12) 5 3GPP TR 29.903 version 6.0.0 Release 6 Foreword This Technical Report has been produced by the 3G
25、PP. 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 this TR, it will be re-released by the TSG with an identifying change of release date and an increase in version number as follow
26、s: Version x.y.z Where: x is the first digit: 1 presented to TSG for information; 2 presented to TSG for approval; 3 Indicates TSG approved document under change control. y is the second digit incremented for all changes of substance, i.e. technical enhancements, corrections, updates, etc. z is the
27、third digit incremented when editorial only changes have been incorporated in the specification. ETSI ETSI TR 129 903 V6.0.0 (2004-12) 6 3GPP TR 29.903 version 6.0.0 Release 6 1 Scope The scope of this Technical Report (TR) is to capture the results of a feasibility study on SS7 signalling transport
28、 (e.g. MAP Stage 3“. 6 3GPP TS 29.002: “Mobile Application Part (MAP) specification“. 7 3GPP TS 29.078: “Customised Applications for Mobile network Enhanced Logic; (CAMEL) Phase 3; CAMEL Application Part (CAP) specification“. 8 3GPP TS 29.013: “Signalling interworking between ISDN supplementary serv
29、ices; Application Service Element (ASE) and Mobile Application Part (MAP) protocols“. 9 3GPP TS 29.018: “ Serving GPRS Support Node (SGSN) Visitor Location Register (VLR) Gs interface layer 3 specification“. 10 3GPP TS 29.205: “Application of Q.1900 Series to Bearer Independent; CS Core Network Arch
30、itecture Stage 3“. 11 3GPP TS 29.232: “Media Gateway Controller (MGC) Media Gateway (MGW); Interface; Stage 3“. ETSI ETSI TR 129 903 V6.0.0 (2004-12) 7 3GPP TR 29.903 version 6.0.0 Release 6 12 3GPP TS 29.066: “ Support of Mobile Number Portability (MNP); Technical Realisation“. 13 3GPP TS 33.200 “N
31、etwork Domain Security“. 14 IETF RFC 2960: Stream Control Transmission Protocol (SCTP). http:/www.ietf.org/rfc/rfc2960.txt 15 IETF INTERNET-DRAFT: SS7 SCCP-User Adaptation Layer (SUA). http:/www.ietf.org/internet-drafts/draft-ietf-sigtran-sua-08.txt 16 IETF INTERNET-DRAFT: SS7 MTP3-User Adaptation L
32、ayer (M3UA). http:/www.ietf.org/internet-drafts/draft-ietf-sigtran-m3ua-09.txt 17 IETF RFC 2916: E.164 number and DNS (ENUM). http:/www.ietf.org/rfc/rfc2916.txt 18 IETF RFC 1034 Domain Names Concepts and Facilities. http:/www.ietf.org/rfc/rfc1034.txt 19 IETF RFC 1035 Domain Names Implementation And
33、Specification. http:/www.ietf.org/rfc/rfc1034.txt 20 IETF RFC 2915 The Naming Authority Pointer (NAPTR) DNS Resource Record. http:/www.ietf.org/rfc/rfc2915.txt 21 IETF INTERNET-DRAFT: On the Use of SCTP with IPsec. http:/www.ietf.org/internet-drafts/draft-ietf-ipsec-sctp-01.txt 2.2 Informative Refer
34、ences 22 IETF RFC 2719: Framework Architecture for Signalling Transport http:/www.ietf.org/rfc/rfc2719.txt 23 ITU-T Recommendation E.164: “Numbering plan for the ISDN era“ 24 ITU-T Recommendation E.212: “Identification plan for land mobile stations“ 25 ITU-T Recommendation E.214: “Structuring of the
35、 land mobile global title for the signalling connection control part“ 26 ITU-T Recommendation Q.711: “Specifications of Signalling System No.7; Functional description of the Signalling Connection Control Part“. 27 ITU-T Recommendation Q.712: “Definition and function of SCCP messages“. 28 ITU-T Recom
36、mendation Q.713: “Specifications of Signalling System No.7; SCCP formats and codes“. 29 ITU-T Recommendation Q.714: “Specifications of Signalling System No.7; Signalling Connection Control Part procedures“. 30 ANSI T1.112 (1996): “Telecommunication Signalling No. 7 Signaling Connection Control Part
37、(SCCP)“ 31 R3-011486: “Radio Network Signalling Bearer for RANAP and RNSAP in Rel5 IP transport option“ 32 R3-011490: “ SUA vs. M3UA for RANAP, RNSAP TNL in IP UTRAN “ ETSI ETSI TR 129 903 V6.0.0 (2004-12) 8 3GPP TR 29.903 version 6.0.0 Release 6 3 Definitions and Abbreviations 3.1 Definitions IPSP:
38、 Signalling Point in the IP network Mobile Number: In this document the expression “Mobile Number“ is used to indicate any of the E.164, E.212 and E.214 numbers of the mobile. 3.2 Abbreviations For the purposes of the present document, the following abbreviations apply: AMF Address Mapping Function
39、ASP Application Server ProcessAP Application level protocol (SCCP User Protocols) AS Application Server BG Border GatewayAAL5 ATM Adaptation Layer type 5 ATM Asynchronous Transfer Mode BSSAP+ Base Station System Application Part CAMEL Customized Application for Mobile Network Enhanced Logic CAP CAME
40、L Application Part CC Country Code NDC National Destination Code CCBS Call Completion to Busy Subscriber DNS Domain Name System ENUM Electronic Number (RFC 2916) GSM Global System for Mobile Communications GPRS General Packet Radio Service GTT Global Title Translation HPLMN Home Public Land Mobile N
41、etwork VPLMN Visitor Public Land Mobile Network IANA Internet Assigned Numbers Authority IP Internet Protocol IWF Interworking Function LDAP Lightweight Directory Access Protocol M3UA MTP3-User AdaptationMAP Mobile Application Part MCC Mobile Country Code MNC Mobile Network Code MNP Mobile Number Po
42、rtability MTP Message Transfer Part MTP1 Message Transfer Part layer 1 MTP2 Message Transfer Part layer 2 MTP3 Message Transfer Part layer 3 NAPTR The Naming Authority Pointer MTU Maximum Transfer Unit NPDB Number Portability Database PC Point code PCAP Positioning Calculation Application Part PDH P
43、lesiochronous Digital Hierarchy RANAP Radio Access Network Application Part RNSAP Radio Network Subsystem Application Part SG Signalling Gateway SMMT Short Message Mobile Terminated SMMO Short Message Mobile Originated SMS Short Message Service SNM SUA Network Management ETSI ETSI TR 129 903 V6.0.0
44、(2004-12) 9 3GPP TR 29.903 version 6.0.0 Release 6 SSAP Supplementary Service Application Part SSCF Service Specific Coordination Function SSCOP Service Specific Connection Oriented Protocol SSN SCCP subsystem number SCCP Signalling Connection Control Part SCTP Stream Control Transmission Protocol S
45、DH Synchronous Digital Hierarchy SUA SCCP-User Adaptation layer T-BCSM Terminating Basic Call State Model TC Transaction Capabilities TCAP Transaction Capabilities Application Part TPDU Transfer Protocol Data Unit UMTS Universal Mobile Telecommunication System URI Uniform Resource Indentifiers 4 Int
46、roduction The purpose of this technical report (TR) is i) to discuss the advantages and disadvantages of using the SUA protocol to transport MAP and/or CAP signalling over an IP based core network, and ii) to propose SUA as an alternative option for MAP/CAP transport in Rel-5. 5 SUA Overview SCCP-Us
47、er Adaptation (SUA) is a new protocol, currently developed by IETF (see 0), for the transport of any SS7 SCCP-User signalling (e.g. TCAP etc.) over IP using the Stream Control Transport Protocol (SCTP). SUA aims to be modular and symmetric, to allow it to work in diverse architectures, such as a Sig
48、nalling Gateway to IP Signalling Endpoint architecture as well as a peer-to-peer IP Signalling Endpoint architecture. 5.1 Sigtran Background Stream Control Transmission Protocol (SCTP), defined by the Signal Transport (SIGTRAN) working group of the Internet Engineering Task Force (IETF), is a transp
49、ort level datagram transfer protocol that operates on top of an unreliable datagram service, such as Internet Protocol (IP). Like TCP, SCTP provides a reliable transport service, ensuring that data is transported across the network without error and in sequence. SCTP works on the basic concepts of associations and streams. An SCTP association is similar to a TCP connection, except it can support multiple IP addresses at either or both ends. An SCTP association is comprised of multiple logical streams
