1、 I n t e r n a t i o n a l T e l e c o m m u n i c a t i o n U n i o n ITU-T Y.2340 TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (09/2016) SERIES Y: GLOBAL INFORMATION INFRASTRUCTURE, INTERNET PROTOCOL ASPECTS AND NEXT-GENERATION NETWORKS, INTERNET OF THINGS AND SMART CITIES Next Generation Netwo
2、rks Enhancements to NGN Next generation network evolution phase 1 Overview Recommendation ITU-T Y.2340 ITU-T Y-SERIES RECOMMENDATIONS GLOBAL INFORMATION INFRASTRUCTURE, INTERNET PROTOCOL ASPECTS AND NEXT-GENERATION NETWORKS, INTERNET OF THINGS AND SMART CITIES GLOBAL INFORMATION INFRASTRUCTURE Gener
3、al Y.100Y.199 Services, applications and middleware Y.200Y.299 Network aspects Y.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
4、 Y.1000Y.1099 Services and applications Y.1100Y.1199 Architecture, access, network 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 maintena
5、nce Y.1700Y.1799 Charging Y.1800Y.1899 IPTV over NGN Y.1900Y.1999 NEXT GENERATION NETWORKS Frameworks and functional architecture models Y.2000Y.2099 Quality of Service and performance Y.2100Y.2199 Service aspects: Service capabilities and service architecture Y.2200Y.2249 Service aspects: Interoper
6、ability of services and networks in NGN Y.2250Y.2299 Enhancements to NGN Y.2300Y.2399 Network management Y.2400Y.2499 Network control architectures and protocols Y.2500Y.2599 Packet-based Networks Y.2600Y.2699 Security Y.2700Y.2799 Generalized mobility Y.2800Y.2899 Carrier grade open environment Y.2
7、900Y.2999 FUTURE NETWORKS Y.3000Y.3499 CLOUD COMPUTING Y.3500Y.3999 INTERNET OF THINGS AND SMART CITIES AND COMMUNITIES General Y.4000Y.4049 Definitions and terminologies Y.4050Y.4099 Requirements and use cases Y.4100Y.4249 Infrastructure, connectivity and networks Y.4250Y.4399 Frameworks, architect
8、ures and protocols Y.4400Y.4549 Services, applications, computation and data processing Y.4550Y.4699 Management, control and performance Y.4700Y.4799 Identification and security Y.4800Y.4899 Evaluation and assessment Y.4900Y.4999 For further details, please refer to the list of ITU-T Recommendations
9、. Rec. ITU-T Y.2340 (09/2016) i Recommendation ITU-T Y.2340 Next generation network evolution phase 1 Overview Summary Recommendation ITU-T Y.2340 provides an overview of phase 1 in the evolution of next generation networks (NGNs). NGN evolution phase 1 supports enhanced capabilities based on NGN ca
10、pability set 2, as per ITU-T Y.2007. The key objective of NGN evolution phase 1 is to satisfy the service and capability requirements for the support of network intelligence, virtualization and programmability for services and applications for humans and things. This Recommendation summarizes the en
11、hancements of NGN evolution phase 1 according to the relevant Recommendations which relate to these different enhancements. History Edition Recommendation Approval Study Group Unique ID* 1.0 ITU-T Y.2340 2016-09-29 13 11.1002/1000/13014 Keywords Capability, Internet of Things, network intelligence,
12、NGN evolution, programmability, requirement, virtualization. * To access the Recommendation, type the URL http:/handle.itu.int/ in the address field of your web browser, followed by the Recommendations unique ID. For example, http:/handle.itu.int/11.1002/1000/11830-en. ii Rec. ITU-T Y.2340 (09/2016)
13、 FOREWORD The International 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 stu
14、dying technical, operating 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 gro
15、ups which, in turn, produce 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
16、ISO and IEC. NOTE In this 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 provisi
17、ons (to ensure, e.g., interoperability 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 suc
18、h words does not suggest that compliance with the Recommendation is required of any party. INTELLECTUAL PROPERTY RIGHTSITU 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
19、 concerning the evidence, 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
20、 by patents, which may 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 2017 All rights reserved. No part of th
21、is publication may be reproduced, by any means whatsoever, without the prior written permission of ITU. Rec. ITU-T Y.2340 (09/2016) iii Table of Contents Page 1 Scope . 1 2 References . 1 3 Definitions 2 3.1 Terms defined elsewhere 2 3.2 Terms defined in this Recommendation . 2 4 Abbreviations and a
22、cronyms 3 5 Conventions 3 6 Introduction of NGN evolution phase 1 . 3 7 Service and capability requirements for NGN evolution phase 1 3 7.1 Support of services and applications for things 3 7.2 Support of network intelligence capabilities 4 7.3 Support of network programmability . 4 7.4 Support of n
23、etwork functions virtualization . 4 8 The capability framework of NGN evolution phase 1 5 8.1 Overview of capability framework . 5 8.2 Service stratum capabilities of NGNe1 6 8.3 Transport stratum capabilities of NGNe1 . 7 8.4 Management capabilities of NGNe1 7 9 Security considerations . 7 Appendix
24、 I Deployment scenarios in NGN evolution phase 1 . 8 I.1 Scenarios of network functions virtualization in NGN evolution phase 1 . 8 I.2 Scenarios for support of IoT applications in NGN evolution phase 1 . 9 Appendix II Potential requirements for further study concerning NGN evolution phase 1 13 II.1
25、 Support of unified service provision and management 13 II.2 Support of interoperability and interworking . 13 II.3 Support of unified network management . 13 Bibliography. 14 Rec. ITU-T Y.2340 (09/2016) 1 Recommendation ITU-T Y.2340 Next generation network evolution phase 1 Overview 1 Scope This Re
26、commendation gives a general overview of phase 1 of the evolution of next generation networks (NGNs) in terms of service and capability requirements, as well as a capability framework. The Recommendations for NGN evolution will be developed phase by phase. This Recommendation addresses phase 1 of NG
27、N evolution. The key objective of NGN evolution phase 1 is to satisfy any additional requirements with respect to NGN capability set 2 ITU-T Y.2007, for the support of network intelligence, virtualization and programmability for services and applications for humans and things. In particular, this Re
28、commendation provides the service and capability requirements as well as the capability framework of NGN evolution phase 1. Relevant NGN evolution deployment scenarios are addressed in Appendix I. As this Recommendation addresses the overall requirements and capabilities for NGN evolution phase 1, a
29、nd in order to avoid the overlap or inconsistency with the relevant Recommendations related to NGN evolution, this Recommendation makes reference to the relevant Recommendations, as appropriate. Along with the introduction of the key enhancements mentioned above, Appendix II provides some additional
30、 potential requirements of NGN evolution phase 1 which need further study and are not currently addressed in specific Recommendations related to NGN evolution. This could be used as background information to assist the future development of Recommendations related to these potential requirements and
31、 corresponding capabilities. 2 References The following ITU-T Recommendations and other references contain provisions which, through reference in this text, constitute provisions of this Recommendation. At the time of publication, the editions indicated were valid. All Recommendations and other refe
32、rences are subject to revision; users of this Recommendation are therefore encouraged to investigate the possibility of applying the most recent edition of the Recommendations and other references listed below. A list of the currently valid ITU-T Recommendations is regularly published. The reference
33、 to a document within this Recommendation does not give it, as a stand-alone document, the status of a Recommendation. ITU-T M.3060 Recommendation ITU-T M.3060/Y.2401 (2006), Principles for the Management of Next Generation Networks. ITU-T Y.2007 Recommendation ITU-T Y.2007 (2010), NGN capability se
34、t 2. ITU-T Y.2012 Recommendation ITU-T Y.2012 (2010), Functional requirements and architecture of next generation networks. ITU-T Y.2201 Recommendation ITU-T Y.2201 (2009), Requirements and capabilities for ITU-T NGN. ITU-T Y.2240 Recommendation ITU-T Y.2240 (2011), Requirements and capabilities for
35、 next generation network service integration and delivery environment. ITU-T Y.2301 Recommendation ITU-T Y.2301 (2013), Network intelligence capability enhancement Requirements and capabilities. ITU-T Y.2320 Recommendation ITU-T Y.2320 (2015), Requirements for virtualization of control network entit
36、ies in next generation network evolution. 2 Rec. ITU-T Y.2340 (09/2016) ITU-T Y.3011 Recommendation ITU-T Y.3011 (2012), Framework of network virtualization for future networks. ITU-T Y.3300 Recommendation ITU-T Y.3300 (2014), Framework of software-defined networking. ITU-T Y.3321 Recommendation ITU
37、-T Y.3321 (2015), Requirements and capability framework for NICE implementation making use of software-defined networking technologies. ITU-T Y.4000 Recommendation ITU-T Y.4000 (2012), Overview of the Internet of things. ITU-T Y.4100 Recommendation ITU-T Y.4100 (2014), Common requirements of Interne
38、t of Things. ITU-T Y.4101 Recommendation ITU-T Y.4101 (2014), Common requirements and capabilities of a gateway for Internet of things applications. ITU-T Y.4401 Recommendation ITU-T Y.4401 (2015), Functional framework and capabilities of the Internet of things. 3 Definitions 3.1 Terms defined elsew
39、here This Recommendation uses the following terms defined elsewhere: 3.1.1 Internet of things (IoT) ITU-T Y.4000: A global infrastructure for the information society, enabling advanced services by interconnecting (physical and virtual) things based on existing and evolving interoperable information
40、and communication technologies. 3.1.2 next generation network (NGN) b-ITU-T Y.2001: A packet-based network which is able to provide telecommunication services and able to make use of multiple broadband, QoS-enabled transport technologies and in which service-related functions are independent from un
41、derlying 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. 3.1.3 network intelligence capab
42、ility enhancement (NICE) ITU-T Y.2301: An enhancement for NGNs supporting some intelligence capabilities for the provisioning of services according to requirements of users and application providers. These intelligence capabilities (termed as NICE capabilities) enable operators to assign and dynamic
43、ally adjust specific network resources based on the requirements, as well as supporting interfaces for users and applications enabling on-demand resource and service provision. 3.1.4 network virtualization ITU-T Y.3011: A technology that enables the creation of logically isolated network partitions
44、over shared physical networks so that heterogeneous collections of multiple virtual networks can simultaneously coexist over the shared networks. This includes the aggregation of multiple resources in a provider and appearing as a single resource. 3.1.5 software-defined networking (SDN) ITU-T Y.3300
45、: A set of techniques that enables to directly program, orchestrate, control and manage network resources, which facilitates the design, delivery and operation of network services in a dynamic and scalable manner. 3.2 Terms defined in this Recommendation None Rec. ITU-T Y.2340 (09/2016) 3 4 Abbrevia
46、tions and acronyms This Recommendation uses the following abbreviations and acronyms: IP Internet Protocol IoT Internet of Things NGN Next Generation Network NGNe1 Next Generation Network evolution phase 1 NICE Network Intelligence Capability Enhancement QoS Quality of Service SDN Software-Defined N
47、etworking VCN Virtualization of Control Network entities 5 Conventions This Recommendation uses the following conventions: The term “is required to“ indicates a requirement which must be strictly followed, and from which no deviation is permitted, if conformance to this Recommendation is to be claim
48、ed. 6 Introduction of NGN evolution phase 1 ITU-T Y.2201 specifies the high level requirements and related capabilities of NGN. The motivation for NGN evolution is to provide the enhanced capabilities to suit the new demands from industry based on the NGN infrastructure. NGN evolution is a non-stop
49、long-term piece of work. NGN evolution phase 1 (NGNe1) addresses an evolved version of NGN with enhanced capabilities for the support of network intelligence, virtualization and programmability, in order to provide services and applications for humans and things. In particular, NGN evolution phase 1 addresses: requirements and capabilities for the support of Internet of things applications; requirements and capabilities for the support of network intelligence; for exam
