1、ETSI EG 201 936 1.1.1 (2002-04) ETSI Guide Services and Protocols for Advanced Networks (SPAN); In terworki ng ; IP Federating Network (IPFN) architecture 2 ETSI EG 201 936 VI .I .I (2002-04) Reference DEG/SPAN-I40104 Keywords interworking, IP, gateway, service ETSI 650 Route des Lucioles F-O6921 So
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6、Institute 2002. All rights reserved. DECTTM, PLUGTESTSTMand UMTSTMare Trade Marks of ETSI registered for the benefit of its Members. TIPHONTM and the TIPHON logo are Trade Marks currently being registered by ETSI for the benefit of its Members. 3GPPTM is a Trade Mark of ETSI registered for the benef
7、it of its Members and of the 3GPP Organizational Partners. ETSI 3 ETSI EG 201 936 VI .I .I (2002-04) Contents Intellectual Property Rights . .5 Foreword . 5 Introduction . .5 1 2 3 3.1 3.2 4 5 5.1 5.2 6 6.1 6.2 6.3 6.4 7 7.1 7.2 7.3 7.4 7.5 7.6 7.7 7.8 7.9 7.10 7.11 7.12 7.13 7.14 7.15 7.16 8 8.1 8.
8、2 8.3 8.4 9 9.1 9.2 10 11 12 13 14 Scope 6 References . .6 Definitions and abbreviations .7 Definitions 7 Abbreviations . 8 Background information .9 Users requirements . 1 O . 10 Market requirements . . 11 Users requirements . Scenario 1 - Environmental crisis situation . 12 Scenario 2 - Multileg c
9、all . . 14 Scenario 3 - Corporate application . . 15 Scenario 4 - Secured transactions . . 15 Services offered 16 Voice services . 16 . 17 . 17 . 17 . 17 . 18 es 18 Translation service . 18 Administration . 18 Presence servic . 18 Messaging services . . 1s Location based services. . . 18 Directory s
10、ervices . . 18 Compression features . . 18 Intenvorking fe atures and capabilities Functional model. .19 . 19 Mandatory functions . 20 Optional functions . The Intelligent Intenvork ctions . . .20 Recommendations . 21 Levels of interworking . 22 Levels . . .22 Recommendations . .23 Operational scena
11、rios .12 Value added services . 19 . 19 User profile structure and modelling for IPFN .23 Reference model .26 Data flows . .28 Existing protocols .29 Protocol extensions 30 ETSI 4 ETSI EG 201 936 VI . 1 . 1 (2002-04) 15 Dimensioning . 30 16 Naming conventions . 31 Annex A (informative): Cross user i
12、nterworking examples . 32 Annex B (normative): Recommendations 33 Annex C (informative): Bibliography . 35 History 36 ETSI 5 ETSI EG 201 936 VI .I .I (2002-04) Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information
13、 pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found in ETSI SR O00 3 14: “Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notijied to ETSI in respect of ETSI standards“, which is available from the ETSI
14、Secretariat. Latest updates are available on the ETSI Web server (5). 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 O00 3 14 (or the updates on the ETSI We
15、b server) which are, or may be, or may become, essential to the present document. Foreword This ETSI Guide (EG) has been produced by ETSI Technical Committee Services and Protocols for Advanced Networks (SPAN). I n t rod uct ion The present document deals with the IP Federating Network (IPFN), an in
16、telligent open interworking platform utilizing IP technology, allowing interconnection of existing and future networks. The networks interconnected may be fixed or mobile, 2G or 3G, IP or non-IP, public or private. The IPFN is composed of a set of functional subsystems, enabling users and applicatio
17、ns of these networks to interoperate in fixed and mobile environments, and allowing for provision of value added services. From the users requirements and scenarios, a functional model is established, an architecture is defiied based on the harmonization and evolution of existing architectures, refe
18、rence points are identified, so as to list the existing protocols, identiSl the need for any protocol extensions and interworking specifications. Levels of internetworking are defined depending on the Services offered like Security, Quality of Service, Supplementary Services and Data facilities. Dat
19、a may be exchanged, collected or shared between users. New Services like global addressing, internetwork broadcast, multileg communications, etc, which are not yet available on the actual network to which the user is connected, may be offered. Security will be an intrinsic capability of the architec
20、ture. From this a set of recommendations is made in annex B, in order to help identiSling the work in the different areas. ETSI 6 ETSI EG 201 936 VI .I .I (2002-04) 1 Scope The present document identifies the services requirements from the users perspective. It then defines the functions necessary f
21、or interoperability required to establish an “IP Federating Network (IPFN)“. It identifies the architecture and the reference points that are sufficient to meet the users requirements in order to: - allow Voice, Video and Data or combination of this (Multimedia) interworking between users on heterog
22、eneous interconnected Networks; allow users to roam between networks, i.e. to allow the users to change network point of attachment; ensure secured communication when required by the users; maintain all or some Services (Supplementary Services, Data facilities, etc.) to the users; offer new Services
23、 like global name/addressing, internetwork broadcast, multileg communications, etc. which are not yet available on the actual network to which the user is connected; ensure lossless Data exchange between users of different Networks and between Databases, if required; provide extended addressing and
24、naming capabilities; allow desirable feature interaction between applications that interwork across different networks; offer scalability of network interconnection; ensure some corresponding levels of Priority, Quality of Service; provide necessary network and service management capabilities for al
25、l of the above. - - - - - - - - - - The present document aims to provide an analysis of the status of the subject, make recommendations for future work. The objective is not to redefine existing standards when they can be reused (see note), but in a global analysis to review standards applicable, th
26、eir limitations and the rules for implementing interoperability. For example a list of candidate protocols are SIP for interworking between gateways, Mobile IP, LDAP, IPSec, HTTP, XML. NOTE: The standards referred to here are developed by ETSI, WWRF, IETF, IPv6 Forum and W3C, details of which are av
27、ailable in the Bibliography (annex C). Levels of interworking will be investigated when appropriate in the context of the IPFN 2 Refe re nces The following documents contain provisions which, through reference in this text, constitute provisions of the present document. References are either specifi
28、c (identified by date of publication andor edition number or version number) or non-specific. For a specific reference, subsequent revisions do not apply. For a non-specific reference, the latest version applies. il 21 IST 2000-28345 EGERIS: “European Generic Emergency Response Information System“.
29、ETSI TS 101 3 14: “Telecommunications and Internet Protocol Harmonization Over Networks (TIPHON); Network architecture and reference configurations; TIPHON Release 2“. 31 ITU-T Recommendation F. 16: “Global virtual network service“ ETSI 7 ETSI EG 201 936 VI .I .I (2002-04) 3 3.1 Definitions and abbr
30、eviations De fin it ions For the purposes of the present document, the following terms and definitions apply: IP Federating Network intelligent, open interworking platform utilizing IP technology, allowing interconnection of any kind of existing and future networks user: any entity that actually use
31、s a service. Examples of users in the context of the present document are as follows: public users; regulators; services providers; emergency authorities; corporate users; utilities; agents/applications. interworking: ability of equipments to communicate together from different systems and with simi
32、lar services interoperability: ability of equipments from different manufacturers (or different systems) to communicate together on the same infrastructure (same system), or on another while roaming location based services: specific services offered depending on the user geographical location like m
33、apping services, points of interest, routing services portability: ability of an entity or element to be used in different systems or environments roaming: process of changing the network access point from one location area network or domain to another within one system or between different systems
34、agent: application program that performs management operations in response to received management messages or that sends notifications client: application program that sends request gateway: interface, between two (or more) systems that have similar functions but dissimilar implementations, enabling
35、 users on one network to communicate with users on the other proxy, proxy sewer: intermediary program that acts as both a server and a client for the purpose of making requests on behalf of other clients redirect server: server that accepts requests, maps the address into zero or more new addresses
36、and returns the requests with the new addresses to the client server: application program that accepts requests in order to service those requests and send back responses to those requests user agent client: client application that initiates requests on behalf of a user user agent sewer: server appl
37、ication that contacts the user when a request is received user agent: application that contains both a user agent client and user agent server ETSI 8 ETSI EG 201 936 VI .I .I (2002-04) 3.2 Abbreviations For the purposes of the present document, the following abbreviations apply: AAA ABM API BICC CLI
38、P CR DNS EP FG GERAN GIS GSM GVNS GW HLR HTTP IETF IIP IP IPFN IPSec ISP ISS1 IST ISTAG ISUP IT ITEA LAN LDAP MCU MESA MG MGC NAT NSB os1 PDA PIM PKI PMR PSTN PTN QOS RFC ROBO SCF SDF SG SIM SIP SLA SMS SOHO QoSPE UMTS URL Authentication, Authorisation and Accounting Asynchronous Balance Mode Applic
39、ation Programming Interface Bearer Independent Call Control Calling Line Identification Presentation (supplementary service) Call Reference Domain Name Server ETSI Project Functional Grouping GSM EDGE Radio Access Network Geographical Information System Global System for Mobile communications Global
40、 Virtual Network Service Gateway Home Location Register Hyper Text Transfer Protocol Internet Engineering Task Force Intelligent Interworking Plane Internet Protocol IP Federating Network IP Security Internet Service Provider Inter Sub System Interface Information Society Technologies IST programme
41、Advisory Group ISDN User Part Information Technology Information Technology for European Advancement Local Area Network Light Directory Application Protocol Media Conferencing Unit Public Safety Partnership Project (Project MESA) Media Gateway Media Gateway Controller Network Address Translation Net
42、work Service Broker Open System Interconnection Personal Digital Assistant Presence and Immediate Messaging Public Key Infiastructure Private Mobile Radio Public Switched Telephone Network Private Telecommunications Network Quality of Service Request For Comment Remote Office Branch Office Service C
43、ontrol Function Service Data Function Signalling Gateway Subscriber Identity Module Session Initiation Protocol Service Level Agreement Short Message Service Small Office Home Office Quality of Service Policy Element Universal Mobile Telecommunications System User Requirements Language ETSI 9 ETSI E
44、G 201 936 VI .I .I (2002-04) UTRAN V+D VHE VOIP VPN WAP WLAN XML UMTS Terrestrial Radio Access Network Voice plus Data Virtual Home Environment Voice over IP Virtual Private Network Wide Area Paging wireless local area network X Modelling Language 4 Bac kg round information It is a fact that wireles
45、s and wireline technologies are diverse with their specific adaptations to different markets. There is an increasing need to interconnect these public and private networks to provide Multimedia, not only a discrete Voice, Video and Data intenvorking, but also including global Name/addressing, Mobili
46、ty, Value Added Services, Security. IP based networks, by connecting functional subsystems, can federate those different wireless and wireline technologies for the users and for applications enabling implementations of new cross technology services and new business models between networks. These IP
47、Core networks can use a common IP transport network for wireless and wireline subscribers and are independent from the access networks. Multiple access technologies should include: UTRAN, GERAN, Hiperlad, etc. This will include wireline access in addition to the existing radio accesses, i.e. MESA. A
48、lso, this convergence between wireline and wireless technologies should be seen as a key area of alignment, both at the network and service layers. It is important to derive common mobility requirements that could be adopted for wireless and fixed IP technologies, based on the study and review of mo
49、bility solutions of already evolving mobile networks (i.e. the Release 4 and beyond) and fixed networks (e.g. WLAN networks). This is actually needed to identi - citizens using public networks, fixed or mobile like PSTN, GSM, UMTS; operators and ISPs of the fixed or mobile public odand private networks; emergency Services, civil protection using fixed and mobile networks and their Information Centres; administrations taking decisions in crisis situations from the available Information; IT Agencies (Like Environment, etc.) using different communications means and Infomation
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