1、 ETSI TR 184 007 V2.2.1 (2008-11)Technical Report Telecommunications and Internet converged Services andProtocols for Advanced Networking (TISPAN);Naming/Numbering Address Resolution (NAR)ETSI ETSI TR 184 007 V2.2.1 (2008-11) 2Reference RTR/TISPAN-04016-NGN-R2 Keywords addressing, enum, DNS ETSI 650
2、 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 Important notice Individual copies of the present document can be downlo
3、aded from: http:/www.etsi.org The present document may be made available in more than one electronic version or in print. In any case of existing or perceived difference in contents between such versions, the reference version is the Portable Document Format (PDF). In case of dispute, the reference
4、shall be the printing on ETSI printers of the PDF version kept 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 av
5、ailable at http:/portal.etsi.org/tb/status/status.asp If you find errors in the present document, please send your comment to one of the following services: http:/portal.etsi.org/chaircor/ETSI_support.asp Copyright Notification No part may be reproduced except as authorized by written permission. Th
6、e copyright and the foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute 2008. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTM, TIPHONTM, the TIPHON logo and the ETSI logo are Trade Marks of ETSI registered for the benefit of its Members. 3GPPTM
7、 is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. ETSI ETSI TR 184 007 V2.2.1 (2008-11) 3Contents Intellectual Property Rights 4g3Foreword . 4g31 Scope 5g32 References 5g32.1 Normative references . 5g32.2 Informative references 5g33 Definitio
8、ns and Abbreviations 7g33.1 Definitions 7g33.2 Abbreviations . 8g34 Introduction 10g35 Rationale for the Analysis of Naming Numbering Address Resolution and of the Basic Structure of a Naming Numbering Address Resolution Framework . 11g35.1 Motivation - Use Cases 11g35.2 Steps requiring further Inve
9、stigation 19g36 Basic Structure of the Naming/Numbering Address Resolution Framework 20g36.1 NAR Methods - Generic Approach 20g36.2 Fundamental Principles and Requirements 21g36.3 NAR Process in TISPAN NGN 22g37 Gap-Analysis 25g37.1 Concept of NAR to support/enable Use Cases . 26g37.2 Reference Poin
10、ts/Interfaces between NAR and Network Elements . 26g37.3 Introduction of a Network Function NAR 26g38 Conclusions 27g3Annex A: Bibliography 28g3Annex B: Change history 29g3History 30g3ETSI ETSI TR 184 007 V2.2.1 (2008-11) 4Intellectual Property Rights IPRs essential or potentially essential to the p
11、resent 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 000 314: “Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
12、 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 Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee can be given as t
13、o 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 Technical Report (TR) has been produced by ETSI Technical Committee Telecommunications and Internet converged
14、Services and Protocols for Advanced Networking (TISPAN). ETSI ETSI TR 184 007 V2.2.1 (2008-11) 51 Scope The present document investigates the need to introduce a Naming/Numbering Address Resolution framework into TISPAN NGN conformant communication networks. To this end the following topics are cove
15、red: Analysis of the consequences of creating a Naming/Numbering Address Resolution framework. Gap Analysis of current TISPAN NGNs specifications in comparison to existing/emerging solutions of NAR methods. Identification of items for standardization as a result of the analysis described in the bull
16、et above. Furthermore the present document investigates the Naming/Numbering Address Resolution (NAR) in NGNs and identifies Naming/Numbering Address Resolution (NAR) use cases used in NGN environments. 2 References References are either specific (identified by date of publication and/or edition num
17、ber or version number) or non-specific. For a specific reference, subsequent revisions do not apply. Non-specific reference may be made only to a complete document or a part thereof and only in the following cases: - if it is accepted that it will be possible to use all future changes of the referen
18、ced document for the purposes of the referring document; - for informative references. Referenced documents which are not found to be publicly available in the expected location might be found at http:/docbox.etsi.org/Reference. For online referenced documents, information sufficient to identify and
19、 locate the source shall be provided. Preferably, the primary source of the referenced document should be cited, in order to ensure traceability. Furthermore, the reference should, as far as possible, remain valid for the expected life of the document. The reference shall include the method of acces
20、s to the referenced document and the full network address, with the same punctuation and use of upper case and lower case letters. NOTE: While any hyperlinks included in this clause were valid at the time of publication ETSI cannot guarantee their long term validity. 2.1 Normative references The fol
21、lowing referenced documents are indispensable for the application of the present document. For dated references, only the edition cited applies. For non-specific references, the latest edition of the referenced document (including any amendments) applies. Not applicable. 2.2 Informative references T
22、he following referenced documents are not essential to the use of the present document but they assist the user with regard to a particular subject area. For non-specific references, the latest version of the referenced document (including any amendments) applies. i.1 ITU-T Recommendation E.164(2005
23、): “The international public telecommunication numbering plan“. ETSI ETSI TR 184 007 V2.2.1 (2008-11) 6i.2 ETSI TS 184 002 (V.1.1.1): “Telecommunications and Internet converged Services and Protocols for Advanced Networking (TISPAN); Identifiers (IDs) for NGN“. i.3 ETSI ES 282 002: “Telecommunicatio
24、ns and Internet converged Services and Protocols for Advanced Networking (TISPAN); PSTN/ISDN Emulation Sub-system (PES); Functional architecture“. i.4 IETF RFC 3761: “The E.164 to Uniform Resource Identifiers (URI) Dynamic Delegation Discovery System (DDDS) Application (ENUM)“. i.5 ETSI TS 123 228:
25、“Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); IP Multimedia Subsystem (IMS); Stage 2 (3GPP TS 23.228 Release 8)“. i.6 ITU-T Recommendation Y.2001 (2004): “General overview of NGN“. i.7 ETSI TR 184 005 (V1.1.1): “Telecommunications and Inte
26、rnet converged Services and Protocols for Advanced Networking (TISPAN); Types of numbers used in an NGN environment“. i.8 ETSI TS 124 229: “Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); Internet Protocol (IP) multimedia call control protoco
27、l based on Session Initiation Protocol (SIP) and Session Description Protocol (SDP); Stage 3 (3GPP TS 24.229 Release 8)“. i.9 ETSI TR 123 979: “Universal Mobile Telecommunications System (UMTS); 3GPP enablers for Open Mobile Alliance (OMA) Push-to-talk over Cellular (PoC) services; Stage 2 (3GPP TR
28、23.979 Release 7)“. i.10 ETSI TS 123 140: “Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); Multimedia Messaging Service (MMS); Functional description; Stage 2 (3GPP TS 23.140 Release 6)“. i.11 ETSI TS 123 141:“Universal Mobile Telecommunicati
29、ons System (UMTS); Presence service; Architecture and functional description; Stage 2 (3GPP TS 23.141 Release 7)“. i.12 IETF RFC 3966: “The tel URI for Telephone Numbers“. i.13 IETF RFC 4282: “The Network Access Identifier“. i.14 ETSI TR 184 003: “Telecommunications and Internet converged Services a
30、nd Protocols for Advanced Networking (TISPAN); Number Portability scenarios in Next Generation Networks (NGNs)“. i.15 ETSI EG 284 004 (V1.1.2): “Telecommunications and Internet converged Services and Protocols for Advanced Networking (TISPAN); Incorporating Universal Communications Identifier (UCI)
31、support into the specification of Next Generation Networks (NGN)“. i.16 IETF RFC 5031: “A Uniform Resource Name (URN) for Emergency and Other Well-Known Services“. i.17 ETSI TS 129 228: “Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); IP Mult
32、imedia (IM) Subsystem Cx and Dx Interfaces; Signalling flows and message contents (3GPP TS 29.228 Release 8)“. i.18 ETSI ES 282 001 (V2.0.0): “Telecommunications and Internet converged Services and Protocols for Advanced Networking (TISPAN); NGN Functional Architecture“. i.19 ITU-T Recommendation E.
33、191 (2000): “B-ISDN Addressing“. i.20 GSMA IR.67: “DNS Guidelines for Operators“. i.21 IETF RFC 4769: “IANA Registration for an Enumservice Containing Public Switched Telephone Network (PSTN) Signaling Information“. i.22 IETF RFC 4967: “Dial String Parameter for the Session Initiation Protocol Unifo
34、rm Resource Identifier“. ETSI ETSI TR 184 007 V2.2.1 (2008-11) 7i.23 IETF RFC 4694: “Number Portability Parameters for the tel URI“. i.24 ETSI TS 182 006: “Telecommunications and Internet converged Services and Protocols for Advanced Networking (TISPAN); IP Multimedia Subsystem (IMS); Stage 2 descri
35、ption 3GPP TS 23.506 Release 8, modified“. i.25 IETF RFC 2822: “Internet Message Format“. 3 Definitions and Abbreviations 3.1 Definitions For the purposes of the present document, the terms and definitions given in ITU-T Recommendation E.164 i.1, TS 184 002 i.2, TR 184 005 i.7, ITU-T Recommendation
36、E.191 i.19 and the following apply: address: identifier for a specific termination point and used for routing to this termination point NOTE: From this understanding e-mail address and SIP addresses are no addresses but names due to utilized by users! dialling plan : string or combination of decimal
37、 digits, symbols, and additional information that defines the method by which the numbering plan is used NOTE: A dialling plan includes the use of prefixes, suffixes, and additional information, supplemental to the numbering plan, required to complete the call. Domain Name System (DNS): most ubiquit
38、ous naming service in the world is the DNS system used on the Internet and other IP networks NOTE: DNS returns the numeric IP address for the submitted domain name. E.164 number: string of decimal digits that satisfies the three characteristics of structure, number length and uniqueness specified in
39、 ITU-T Recommendation E.164 NOTE: The number contains the information necessary to route the call to the end user or to a point where a service is provided. identifier: series of digits, characters and symbols used to identify uniquely subscriber(s), user(s), network element(s), function(s) or netwo
40、rk entity(ies) providing services/applications NOTE 1: Identifiers can be used for registration or authorization. They can be either public to all networks or private to a specific network (private IDs are normally not disclosed to third parties). NOTE 2: In 3GPP the term “Identity“ or “ID“ is typic
41、ally used instead. international E.164 number: string of decimal digits that, for a geographic country code, uniquely identifies a subscriber or a point where a service is provided NOTE 1: For the case of a global service code, it identifies the subscriber of the service. For Networks, it identifies
42、 a subscriber of the Network. An international E.164 number can act in the “role“ of both a name and an address. Portability is reducing a numbers role as an address. Numbers are increasingly acting in the role of a name only. The number, which includes the country code and subsequent digits, but no
43、t the international prefix, contains the information necessary to route the call to this termination point on a public network (it may also contain the supplementary information necessary to forward it on a private network). NOTE 2: It is sometimes referred to as an “international number“, “internat
44、ional public telecommunication number“ or “E.164 number“. name: identifier of an entity (e.g. subscriber, network element) that may be resolved/translated into an address NOTE: From this understanding e-mail address and SIP addresses are names and used by users! ETSI ETSI TR 184 007 V2.2.1 (2008-11)
45、 8Name number Address Resolution (NAR): terms “address resolution“ and “name resolution“ are synonymous and are used in the IP world in different manners: In IP networks, there are two types of Address Resolutions defined: - The first is the conversion from a domain name into an IP address (see DNS)
46、. - The second is from the IP address to the Ethernet Address Resolution - this is not in the scope of the present document. The Name/Number to Address Resolution is queried using names (E.164 numbers) and responds with addresses (e.g. SIP URIs) associated with that name. These functions could be us
47、ed internal for one operator network or shared between networks. non-E.164 number: any number, defined inside national E.164 numbering plan, which does not conform to the structure of international E.164 numbers as defined in ITU-T Recommendation E.164 and is only used and meaningful in the national
48、 dialling plan and is not reachable from abroad NOTE: An explanation of non-E.164 numbers is in ITU-T Recommendation E.164 i.1 in clause A.8. number: string of decimal digits public identifier: series of digits, characters and symbols used in public networks to uniquely identify subscriber(s), user(
49、s), network element(s), function(s) or network entity(ies) providing services/applications routing: in SIP, determination process of a route (which is a series of Route header fields) for delivering a request to the current name or address that identifies the target of the request SIP Address-of-Record (AoR): SIP or SIPS URI that points to a domain with a location service that can map the URI to another URI where the user might be available NOTE: Typically, the location service is populated through r
