1、 International Telecommunication Union ITU-T Y.2091TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (03/2011) SERIES Y: GLOBAL INFORMATION INFRASTRUCTURE, INTERNET PROTOCOL ASPECTS AND NEXT-GENERATION NETWORKS Next Generation Networks Frameworks and functional architecture models Terms and definition
2、s for next generation networks Recommendation ITU-T Y.2091 ITU-T Y-SERIES RECOMMENDATIONS GLOBAL INFORMATION INFRASTRUCTURE, INTERNET PROTOCOL ASPECTS AND NEXT-GENERATION NETWORKS GLOBAL INFORMATION INFRASTRUCTURE General Y.100Y.199 Services, applications and middleware Y.200Y.299 Network aspects Y.
3、300Y.399 Interfaces and protocols Y.400Y.499 Numbering, addressing and naming Y.500Y.599 Operation, administration and maintenance Y.600Y.699 Security Y.700Y.799 Performances Y.800Y.899 INTERNET PROTOCOL ASPECTS General Y.1000Y.1099 Services and applications Y.1100Y.1199 Architecture, access, networ
4、k capabilities and resource management Y.1200Y.1299 Transport Y.1300Y.1399 Interworking Y.1400Y.1499 Quality of service and network performance Y.1500Y.1599 Signalling Y.1600Y.1699 Operation, administration and maintenance Y.1700Y.1799 Charging Y.1800Y.1899 IPTV over NGN Y.1900Y.1999 NEXT GENERATION
5、 NETWORKS Frameworks and functional architecture models Y.2000Y.2099Quality of Service and performance Y.2100Y.2199 Service aspects: Service capabilities and service architecture Y.2200Y.2249 Service aspects: Interoperability of services and networks in NGN Y.2250Y.2299 Numbering, naming and address
6、ing Y.2300Y.2399 Network management Y.2400Y.2499 Network control architectures and protocols Y.2500Y.2599 Smart ubiquitous networks Y.2600Y.2699 Security Y.2700Y.2799 Generalized mobility Y.2800Y.2899 Carrier grade open environment Y.2900Y.2999 Future networks Y.3000Y.3099 For further details, pleas
7、e refer to the list of ITU-T Recommendations. Rec. ITU-T Y.2091 (03/2011) i Recommendation ITU-T Y.2091 Terms and definitions for next generation networks Summary Recommendation ITU-T Y.2091 contains terms and definitions and a framework relevant to providing a general understanding of next generati
8、on networks (NGNs) and a guide for the development of NGN documents including Recommendations in ITU. History Edition Recommendation Approval Study Group 1.0 ITU-T Y.2091 2007-03-01 13 2.0 ITU-T Y.2091 2008-02-29 13 3.0 ITU-T Y.2091 2011-03-16 13 ii Rec. ITU-T Y.2091 (03/2011) FOREWORD The Internati
9、onal Telecommunication Union (ITU) is the United Nations specialized agency in the field of telecommunications, information and communication technologies (ICTs). The ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ of ITU. ITU-T is responsible for studying technical, operat
10、ing and tariff questions and issuing Recommendations on them with a view to standardizing telecommunications on a worldwide basis. The World Telecommunication Standardization Assembly (WTSA), which meets every four years, establishes the topics for study by the ITU-T study groups which, in turn, pro
11、duce Recommendations on these topics. The approval of ITU-T Recommendations is covered by the procedure laid down in WTSA Resolution 1. In some areas of information technology which fall within ITU-Ts purview, the necessary standards are prepared on a collaborative basis with ISO and IEC. NOTE In th
12、is Recommendation, the expression “Administration“ is used for conciseness to indicate both a telecommunication administration and a recognized operating agency. Compliance with this Recommendation is voluntary. However, the Recommendation may contain certain mandatory provisions (to ensure, e.g., i
13、nteroperability or applicability) and compliance with the Recommendation is achieved when all of these mandatory provisions are met. The words “shall“ or some other obligatory language such as “must“ and the negative equivalents are used to express requirements. The use of such words does not sugges
14、t that compliance with the Recommendation is required of any party. INTELLECTUAL PROPERTY RIGHTS ITU draws attention to the possibility that the practice or implementation of this Recommendation may involve the use of a claimed Intellectual Property Right. ITU takes no position concerning the eviden
15、ce, validity or applicability of claimed Intellectual Property Rights, whether asserted by ITU members or others outside of the Recommendation development process. As of the date of approval of this Recommendation, ITU had not received notice of intellectual property, protected by patents, which may
16、 be required to implement this Recommendation. However, implementers are cautioned that this may not represent the latest information and are therefore strongly urged to consult the TSB patent database at http:/www.itu.int/ITU-T/ipr/. ITU 2012 All rights reserved. No part of this publication may be
17、reproduced, by any means whatsoever, without the prior written permission of ITU. Rec. ITU-T Y.2091 (03/2011) iii Table of Contents Page 1 Scope 1 2 References 1 3 Fundamental NGN definitions . 4 4 Modes of communication for NGN 4 4.1 Connection-mode service ITU-T X.200 4 4.2 Connectionless-mode ser
18、vice ITU-T X.200 5 5 Transport stratum for NGN 5 5.1 Vertical aspects 5 5.2 Horizontal . 7 6 Architecture for NGN . 8 7 Corporate networks 9 8 IP-related capabilities for NGN 10 9 Mobility for NGN . 11 10 ID/locator separation 13 11 Roles, players, value chain, etc., for NGN . 14 12 User, customer,
19、subscriber, client, provider, etc., for NGN . 14 13 Telecommunications, services, applications, etc., for NGN 15 14 Interworking and interoperability . 16 15 Quality of service for NGN 17 16 Identification and location for NGN (including numbering, naming, addressing, routing, etc.) . 18 17 Security
20、 . 18 18 Identity management 19 19 AAA in NGN 20 Alphabetical index . 21 Rec. ITU-T Y.2091 (03/2011) 1 Recommendation ITU-T Y.2091 Terms and definitions for next generation networks 1 Scope This Recommendation contains terms and definitions and a framework relevant to providing a general understandi
21、ng of next generation networks and a guide for the development of NGN documents in the ITU. This Recommendation is not simply a compendium of terms and definitions. The primary purpose of this Recommendation is to provide a context for the use of certain terms and definitions to avoid misunderstandi
22、ngs in NGN activities. Thus, the definitions are arranged in a specific order and certain necessary relationships are illustrated. Additionally, explanatory notes are also included where deemed appropriate. This Recommendation uses terms and definitions, which are considered particularly suitable an
23、d applicable to NGN work and that have already been defined in published ITU-T Recommendations. Additionally, where new terms were required they have been defined in this Recommendation. 2 References The following ITU-T Recommendations and other references contain provisions which, through reference
24、 in this text, constitute provisions of this Recommendation. At the time of publication, the editions indicated were valid. All Recommendations and other references are subject to revision; users of this Recommendation are therefore encouraged to investigate the possibility of applying the most rece
25、nt edition of the Recommendations and other references listed below. A list of the currently valid ITU-T Recommendations is regularly published. The reference to a document within this Recommendation does not give it, as a stand-alone document, the status of a Recommendation. ITU-T E.107 Recommendat
26、ion ITU-T E.107 (2007), Emergency Telecommunications Service (ETS) and interconnection framework for national implementations of ETS. ITU-T E.164 Recommendation ITU-T E.164 (2005), The international public telecommunication numbering plan. ITU-T G.722 Recommendation ITU-T G.722 (1988), 7 kHz audio-c
27、oding within 64 kbit/s. ITU-T G.805 Recommendation ITU-T G.805 (2000), Generic functional architecture of transport networks. ITU-T G.809 Recommendation ITU-T G.809 (2003), Functional architecture of connectionless layer networks. ITU-T G.902 Recommendation ITU-T G.902 (1995), Framework Recommendati
28、on on functional access networks (AN) Architecture and functions, access types, management and service node aspects. ITU-T G.993.1 Recommendation ITU-T G.993.1 (2004), Very high speed digital subscriber line transceivers (VDSL). ITU-T G.8081 Recommendation ITU-T G.8081/Y.1353 (2010), Terms and defin
29、itions for Automatically Switched Optical Networks (ASON). ITU-T H.248.1 Recommendation ITU-T H.248.1 (2005), Gateway control protocol: Version 3. 2 Rec. ITU-T Y.2091 (03/2011) ITU-T M.3050.1 Recommendation ITU-T M.3050.1 (2007), Enhanced Telecom Operations Map (eTOM) The business process framework.
30、 ITU-T Q.825 Recommendation ITU-T Q.825 (1998), Specification of TMN applications at the Q3 interface:Call detail recording. ITU-T Q.1703 Recommendation ITU-T Q.1703 (2004), Service and network capabilities framework of network aspects for systems beyond IMT-2000. ITU-T Q.1706 Recommendation ITU-T Q
31、.1706/Y.2801 (2006), Mobility management requirements for NGN. ITU-T Q.1741.1 Recommendation ITU-T Q.1741.1 (2002), IMT-2000 references to release 1999 of GSM evolved UMTS core network with UTRAN access network. ITU-T Q.1741.6 Recommendation ITU-T Q.1741.6 (2009), IMT-2000 references to Release 8 of
32、 GSM-evolved UMTS core network. ITU-T Q.1742.1 Recommendation ITU-T Q.1742.1 (2002), IMT-2000 references to ANSI-41 evolved core network with cdma2000 access network. ITU-T Q.1761 Recommendation ITU-T Q.1761 (2004), Principles and requirements for convergence of fixed and existing IMT-2000 systems.
33、ITU-T Q.1762 Recommendation ITU-T Q.1762/Y.2802 (2007), Fixed-mobile convergence general requirements. ITU-T T.120 Recommendation ITU-T T.120 (2007), Data protocols for multimedia conferencing. ITU-T T.137 Recommendation ITU-T T.137 (2000), Virtual meeting room management for multimedia conferencing
34、 audio-visual control. ITU-T X.200 Recommendation ITU-T X.200 (1994) | ISO/IEC 7498-1:1994, Information technology Open Systems Interconnection Basic Reference Model: The basic model. ITU-T X.462 Recommendation ITU-T X.462 (1996) | ISO/IEC 11588-3:1997, Information technology Message Handling System
35、s (MHS) Management: Logging information. ITU-T X.601 Recommendation ITU-T X.601 (2000), Multi-peer communications framework. ITU-T X.603 Recommendation ITU-T X.603 (2004) | ISO/IEC 16512-1:2005, Information technology Relayed multicast protocol: Framework. ITU-T X.800 Recommendation ITU-T X.800 (199
36、1), Security architecture for Open Systems Interconnection for CCITT applications. ITU-T X.811 Recommendation ITU-T X.811 (1995) | ISO/IEC 10181-2:1996, Information technology Open Systems Interconnection Security frameworks for open systems: Authentication framework. ITU-T Y.101 Recommendation ITU-
37、T Y.101 (2000), Global Information Infrastructure terminology: Terms and definitions. ITU-T Y.110 Recommendation ITU-T Y.110 (1998), Global Information Infrastructure principles and framework architecture. ITU-T Y.1001 Recommendation ITU-T Y.1001 (2000), IP framework A framework for convergence of t
38、elecommunications network and IP network technologies. Rec. ITU-T Y.2091 (03/2011) 3 ITU-T Y.1411 Recommendation ITU-T Y.1411 (2003), ATM-MPLS network interworking Cell mode user plane interworking. ITU-T Y.2001 Recommendation ITU-T Y.2001 (2004), General overview of NGN. ITU-T Y.2002 Recommendation
39、 ITU-T Y.2002 (2009), Overview of ubiquitous networking and of its support in NGN. ITU-T Y.2011 Recommendation ITU-T Y.2011 (2004), General principles and general reference model for next generation networks. ITU-T Y.2012 Recommendation ITU-T Y.2012 (2006), Functional requirements and architecture o
40、f the NGN release 1. ITU-T Y.2015 Recommendation ITU-T Y.2015 (2009), General requirements for ID/locator separation in NGN. ITU-T Y.2017 Recommendation ITU-T Y.2017 (2009), Multicast functions in next generation networks. ITU-T Y.2018 Recommendation ITU-T Y.2018 (2009), Mobility management and cont
41、rol framework and architecture within the NGN transport stratum. ITU-T Y.2021 Recommendation ITU-T Y.2021 (2006), IMS for Next Generation Networks. ITU-T Y.2031 Recommendation ITU-T Y.2031 (2006), PSTN/ISDN emulation architecture. ITU-T Y.2111 Recommendation ITU-T Y.2111 (2006), Resource and admissi
42、on control functions in Next Generation Networks. ITU-T Y.2171 Recommendation ITU-T Y.2171 (2006), Admission control priority levels in Next Generation Networks. ITU-T Y.2201 Recommendation ITU-T Y.2201 (2009), Requirements and capabilities for ITU-T NGN. ITU-T Y.2205 Recommendation ITU-T Y.2205 (20
43、08), Next Generation Networks Emergency telecommunications Technical considerations. ITU-T Y.2236 Recommendation ITU-T Y.2236 (2009), Framework for NGN support of multicast-based services. ITU-T Y.2261 Recommendation ITU-T Y.2261 (2006), PSTN/ISDN evolution to NGN. ITU-T Y.2262 Recommendation ITU-T
44、Y.2262 (2006), PSTN/ISDN emulation and simulation. ITU-T Y.2271 Recommendation ITU-T Y.2271 (2006), Call server-based PSTN/ISDN emulation. ITU-T Y.2601 Recommendation ITU-T Y.2601 (2006), Fundamental characteristics and requirements of future packet based networks. ITU-T Y.2611 Recommendation ITU-T
45、Y.2611 (2006), High-level architecture of future packet-based networks. ITU-T Y.2701 Recommendation ITU-T Y.2701 (2007), Security requirements for NGN release 1. ITU-T Y.2703 Recommendation ITU-T Y.2703 (2009), The application of AAA service in NGN. 4 Rec. ITU-T Y.2091 (03/2011) ITU-T Y.2720 Recomme
46、ndation ITU-T Y.2720 (2009), NGN identity management framework. ITU-T Y.2807 Recommendation ITU-T Y.2807 (2009), MPLS-based mobility capabilities in NGN. ITU-T Z.100 Sup.1 Recommendation ITU-T Z.100 Supplement 1 (1997), SDL+ methodology: Use of MSC and SDL (with ASN.1). 3 Fundamental NGN definitions
47、 The following three definitions define the fundamental nature of an NGN. next generation network (NGN) ITU-T Y.2001: A packet-based network able to provide telecommunication1services and able to make use of multiple broadband, QoS-enabled transport technologies and in which service-related function
48、s are independent from underlying transport-related technologies. It enables unfettered access for users to networks and to competing service providers and/or services of their choice. It supports generalized mobility which will allow consistent and ubiquitous provision of services to users. NGN ser
49、vice stratum ITU-T Y.2011: That part of the NGN which provides the user functions that transfer service-related data and the functions that control and manage service resources and network services to enable user services and applications. NGN transport stratum ITU-T Y.2011: That part of the NGN which provides the user functions that transfer data and the functions that c
