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 Series Y TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU Supplement 47 (04/2018) SERIES Y: GLOBAL INFORMATION INFRASTRUCTURE, INTERNET PROTOCOL ASPECTS, NEXT-GENERATION NETWORKS, INTERNET OF THINGS AND SMART CITIES Informat
2、ion-centric networking Overview, standardization gaps and proof-of-concept ITU-T Y-series Recommendations Supplement 47 ITU-T Y-SERIES RECOMMENDATIONS GLOBAL INFORMATION INFRASTRUCTURE, INTERNET PROTOCOL ASPECTS, NEXT-GENERATION NETWORKS, INTERNET OF THINGS AND SMART CITIES GLOBAL INFORMATION INFRAS
3、TRUCTURE General 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 A
4、SPECTS General 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, administratio
5、n and maintenance 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 aspe
6、cts: Interoperability 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 e
7、nvironment Y.2900Y.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 Framewo
8、rks, architectures 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 R
9、ecommendations. Y series Supplement 47 (04/2018) i Supplement 47 to ITU-T Y-series Recommendations Information-centric networking Overview, standardization gaps and proof-of-concept Summary Supplement 47 to ITU-T Y-series Recommendations provides the overview of information-centric networking (ICN)
10、and describes the fifteen standardization gaps and five proof-of-concept technologies investigated by the ITU-T Focus Group on IMT-2020 (FG IMT-2020) during 2015-2016. It is based on the ICN related contents of the two final output documents of FG IMT-2020 b-FG IMT-2020 Gaps and b-FG IMT-2020 ICN Po
11、C. History Edition Recommendation Approval Study Group Unique ID* 1.0 ITU-T Y Suppl. 47 2018-04-18 13 11.1002/1000/13588 Keywords Content-centric networking, data-aware networking, future networks, ICN, IMT-2020, information-centric networking, named data networking, PoC. * To access the Recommendat
12、ion, 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 Y series Supplement 47 (04/2018) FOREWORD The International Telecommunication Union (ITU) is the United Nations spe
13、cialized 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, operating and tariff questions and issuing Recommendations on them
14、 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, produce Recommendations on these topics. The approval of ITU-T
15、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 this publication, the expression “Administration“ is used for
16、conciseness to indicate both a telecommunication administration and a recognized operating agency. Compliance with this publication is voluntary. However, the publication may contain certain mandatory provisions (to ensure, e.g., interoperability or applicability) and compliance with the publication
17、 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 suggest that compliance with the publication is required of any party. INTELLE
18、CTUAL PROPERTY RIGHTSITU draws attention to the possibility that the practice or implementation of this publication may involve the use of a claimed Intellectual Property Right. ITU takes no position concerning the evidence, validity or applicability of claimed Intellectual Property Rights, whether
19、asserted by ITU members or others outside of the publication development process. As of the date of approval of this publication, ITU had not received notice of intellectual property, protected by patents, which may be required to implement this publication. However, implementers are cautioned that
20、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 2018 All rights reserved. No part of this publication may be reproduced, by any means whatsoever, without the prior written permission of ITU. Y seri
21、es Supplement 47 (04/2018) iii Table of Contents Page 1 Scope . 1 2 References . 1 3 Definitions 1 3.1 Terms defined elsewhere 1 3.2 Terms defined in this Supplement 2 4 Abbreviations and acronyms 2 5 Conventions 5 6 ICN overview 5 6.1 Background . 5 6.2 Elements of ICN . 6 7 Standardization gaps .
22、7 8 Proof-of-concept . 11 8.1 Overview and mapping with standardization gaps . 11 8.2 PoC #1: ICN enhanced mobile video at the network edge . 13 8.3 PoC #2: Functional chaining system in ICN 14 8.4 PoC #3: End-to-end ICN service orchestration with mobility for IMT-2020 16 8.5 PoC #4: IP services ove
23、r ICN . 19 8.6 PoC #5: ICN transport in millimetre wave networks . 22 9 Recommendations to parent standardization organization . 24 Appendix I PoC #4: IP services over ICN Technical details . 25 I.1 Network architecture 25 I.2 Showcase proof-of-concept 25 Appendix II PoC #5: ICN transport in millime
24、tre wave networks Technical details 27 Bibliography. 29 Y series Supplement 47 (04/2018) 1 Supplement 47 to ITU-T Y-series Recommendations Information-centric networking Overview, standardization gaps and proof-of-concept 1 Scope This Supplement describes fifteen standardization gaps and five proof-
25、of-concept technologies investigated by the ITU-T Focus Group on IMT-2020 during 2015-2016. 2 References None. 3 Definitions 3.1 Terms defined elsewhere This Supplement uses the following terms defined elsewhere: 3.1.1 IMT-2020 b-ITU-T Y.3100: systems, system components, and related technologies tha
26、t provide far more enhanced capabilities than those described in b-ITU-R M.1645. NOTE b-ITU-R M.1645 defines the framework and overall objectives of the future development of IMT-2000 and systems beyond IMT-2000 for the radio access network. 3.1.2 latency b-ITU-R M.2083-0: the contribution by the ne
27、twork to the difference in time (in ms) between when the source sends a packet and when the destination receives it. 3.1.3 mobility b-ITU-R M.2083-0: from a performance target point of view, mobility is the maximum speed (in km/h) at which a defined QoS and seamless transfer can be achieved between
28、radio nodes, which may belong to different layers and/or radio access technologies (multi-layer/-RAT). 3.1.4 future network (FN) b-ITU-T Y.3001: A network able to provide services, capabilities, and facilities difficult to provide using existing network technologies. A future network is either: a) A
29、 new component network or an enhanced version of an existing one, or, b) A heterogeneous collection of new component networks or of new and existing component networks that is operated as a single network. NOTE The plural form “Future Networks“ (FNs) is used to show that there may be more than one n
30、etwork that fits the definition of a future network. 3.1.5 network virtualization b-ITU-T Y.3011: A technology that enables the creation of logically isolated network partitions over shared physical networks so that heterogeneous collection of multiple virtual networks can simultaneously coexist ove
31、r the shared networks. This includes the aggregation of multiple resources in a provider and appearing as a single resource. 3.1.6 software-defined networking b-ITU-T Y.3300: A set of techniques that enables to directly program, orchestrate, control and manage network resources, which facilitates th
32、e design, delivery and operation of network services in a dynamic and scalable manner. 3.1.7 identifier b-ITU-T Y.2091: An identifier is a series of digits, characters and symbols or any other form of data used to identify subscriber(s), user(s), network element(s), function(s), network entity(ies)
33、providing services/applications, or other entities (e.g., physical or logical objects). Identifiers can be used for registration or authorization. They can be either public to all networks, shared between a limited number of networks or private to a specific network (private IDs are normally not dis
34、closed to third parties). 2 Y series Supplement 47 (04/2018) 3.1.8 locator (LOC) b-ITU-T Y.2015: A locator is the network layer topological name for an interface or a set of interfaces. LOCs are carried in the IP address fields as packets that traverse the network. NOTE In b-ITU-T Y.2015, locators a
35、re also referred to as location IDs. 3.1.9 node ID b-ITU-T Y.2015: A node ID is an identifier used at the transport and higher layers to identify the node as well as the endpoint of a communication session. A node ID is independent of the node location as well as the network to which the node is att
36、ached so that the node ID is not required to change even when the node changes its network connectivity by physically moving or simply activating another interface. The node IDs should be used at the transport and higher layers for replacing the conventional use of IP addresses at these layers. A no
37、de may have more than one node ID in use. NOTE b-ITU-T Y.2015 specifies a node ID structure. 3.1.10 name b-ITU-T Y.2091: A name is the identifier of an entity (e.g., subscriber, network element) that may be resolved/translated into address. 3.2 Terms defined in this Supplement None. 4 Abbreviations
38、and acronyms This Supplement uses the following abbreviations and acronyms: 5G Fifth generation mobile network AAA Authentication, Authorization, Accounting APN Access Point Name BGP Border Gateway Protocol BH Backhaul BRAS Broadband Remote Access Server CCN Content-Centric Networking CDN Content De
39、livery Network CN Core Network COTS Commercial Off-The-Shelf C-RAN Cloud Radio Access Network CS Content Store D2D Device-to-Device D2N Device-to-Network DASH Dynamic Adaptive Stream over HTTP DDD Directional Division Duplex DNS Domain Name System DRM Digital Rights Management E2E End-to-End EMS Ele
40、ment Management System eNodeB Evolved Node B Y series Supplement 47 (04/2018) 3 EPC Evolved Packet Core FDD Frequency Division Duplex FIB Forwarding Information Base FID Forwarding Identifier FQDN Fully Qualified Domain Name GTP Generic Tunnelling Protocol GTP-C GTP Control GW Gateway HTTP Hyper Tex
41、t Transfer Protocol ICN Information Centric Networking ICNRG Information Centric Networking Research Group IDC Internet Data Centre IMEI International Mobile Equipment Identity IMT International Mobile Telecommunications IoT Internet of Things IP Internet Protocol KPI Key Performance Index LAN Local
42、 Area Network LINP Logically Isolated Network Partitions LISP Location/Identity Separation Protocol LTE Long Term Evolution M2M Machine to Machine MAC Medium Access Control MEC Mobile Edge Computing MIMO Multiple-Input and Multiple-Output MLDR Mobility Loss Detection and Recovery MME Mobility Manage
43、ment Entity mmWave Millimetre Wave MNO Mobile Network Operator MTC Machine Type Communication NAP Network Access Point NDN Named Data Networking NFV Network Function Virtualization NP Network Performance OAM Operation, Administration and Management ONOS Open Network Operating System PCE Path Computa
44、tion Element 4 Y series Supplement 47 (04/2018) PDCP Packet Data Convergence Protocol PDN Packet Data Network PDU Protocol Data Unit P-GW Packet data network Gateway PIF Protocol Independent Forwarding PIT Pending Interest Table PoC Proof of Concept POF Protocol Oblivious Forwarding PTN Packet Trans
45、port Network QCI QoS Class Identifier QoE Quality of Experience QoS Quality of Service RAN Radio Access Network RAT Radio Access Technologies RoF Radio over Fibre ROHC Robust Header Compression RTP Real-time Transport Protocol SAE-GW System Architecture Evolution - Gateway SAP Service Access Point S
46、DN Software Defined Networking SDO Standard Development Organization S-GW Serving Gateway SIP Session Initiation Protocol sNAP Source Network Attachment Point SON Self Organizing Network SR Segment Routing TCP Transmission Control Protocol TDD Time Division Duplex TMN Technology Management Network U
47、DP User Datagram Protocol UE User Equipment UHD Ultra-High Definition UMTS Universal Mobile Telecommunication System UNI User Network Interface URI Uniform Resource Identifier VLAN Virtual LAN VM Virtual Machine Y series Supplement 47 (04/2018) 5 VNF Virtual Network Function VoLTE Voice over LTE VPN
48、 Virtual Private Network VSER Virtual Service Edge Router WLDR Wireless Loss Detection and Recovery 5 Conventions None. 6 ICN overview 6.1 Background Information centric networking (ICN) was studied in FG IMT-2020 as an example of emerging network technologies. FG IMT-2020 produced two output docume
49、nts on the description of ICN related standardization gaps and proof-of-concept technologies b-FG IMT-2020 Gaps b-FG IMT-2020 ICN PoC. ICN has been considered useful to satisfy the network requirements of IMT-2020 to support enhanced mobile broadband, massive machine-type communications and ultra-reliable low-latency communications. Research shows that ICN is a promising technology that can provide benefits for IMT-2020 networks supporting very large-scale hete
