ITU-T Y 3035-2015 Service universalization in future networks (Study Group 13)《在未来的网络服务普及化(研究组13)》.pdf

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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.3035 TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (06/2015) SERIES Y: GLOBAL INFORMATION INFRASTRUCTURE, INTERNET PROTOCOL ASPECTS AND NEXT-GENERATION NETWORKS Future networks Service universalization in future network

2、s Recommendation ITU-T Y.3035 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.300Y.399 Interfaces and proto

3、cols 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, network capabilities and resource m

4、anagement 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 NETWORKS Frameworks and func

5、tional 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: Interoperability of services and networks in NGN Y.2250Y.2299 Enhancements to NGN Y.2300Y.2399 Network management Y.240

6、0Y.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.2900Y.2999 FUTURE NETWORKS Y.3000Y.3499 CLOUD COMPUTING Y.3500Y.3999 For further details, please refer to the l

7、ist of ITU-T Recommendations. Rec. ITU-T Y.3035 (06/2015) i Recommendation ITU-T Y.3035 Service universalization in future networks Summary Recommendation ITU-T Y.3035 addresses the social and economic awareness objective of future networks (FNs), in particular the related design goal of service uni

8、versalization, identified in Recommendation ITU-T Y.3001. In order to help fulfil this purpose, this Recommendation identifies requirements and technical considerations regarding service universalization that FNs design should consider. History Edition Recommendation Approval Study Group Unique ID*

9、1.0 ITU-T Y.3035 2015-06-13 13 11.1002/1000/12522 Keywords Future networks, service universalization, social and economic awareness. _ * 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,

10、http:/handle.itu.int/11.1002/1000/11830-en. ii Rec. ITU-T Y.3035 (06/2015) 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 Standardizatio

11、n 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 with a view to standardizing telecommunications on a worldwide basis. The World Telecommunication Standardization Assembly (WTSA), which meets

12、 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 Recommendations is covered by the procedure laid down in WTSA Resolution 1. In some areas of information technology which fall within ITU-Ts pu

13、rview, the necessary standards are prepared on a collaborative basis with 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 vo

14、luntary. However, the Recommendation may contain certain mandatory provisions (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

15、 the negative equivalents are used to express requirements. The use of such 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 invol

16、ve the use of a claimed Intellectual Property Right. ITU takes no position 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 Recom

17、mendation, ITU had not received notice of intellectual property, protected 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

18、 http:/www.itu.int/ITU-T/ipr/. ITU 2015 All rights reserved. No part of this publication may be reproduced, by any means whatsoever, without the prior written permission of ITU. Rec. ITU-T Y.3035 (06/2015) iii Table of Contents Page 1 Scope . 1 2 References . 1 3 Definitions 1 3.1 Terms defined else

19、where 1 3.2 Terms defined in this Recommendation . 2 4 Abbreviations and acronyms 2 5 Conventions 2 6 Introduction . 2 7 Stimulating service universalization through FNs deployment 2 8 Requirements for service universalization 3 8.1 Measurement of network resources by service 4 8.2 Flexible network

20、deployment . 4 8.3 Collaborative development . 4 8.4 Use of green technologies 4 9 Technical considerations to facilitate service universalization 4 9.1 Network resources measurement 4 9.2 Adoption of technologies with flexibility . 4 9.3 Green network equipment 5 10 Security considerations . 5 Rec.

21、 ITU-T Y.3035 (06/2015) 1 Recommendation ITU-T Y.3035 Service universalization in future networks 1 Scope This Recommendation addresses social and economic awareness objectives of future networks (FNs), in particular the related design goal of service universalization, identified in ITU-T Y.3001. Th

22、is Recommendation covers the following: The objective of stimulating service universalization through FNs; Requirements regarding service universalization in FNs; Technical considerations for FNs design in order to facilitate service universalization. It is important to bear in mind that this Recomm

23、endation does not have the purpose of creating new technologies or standards that should be implemented in FNs. However, it aims to identify which technical considerations should be useful to enhance service universalization and how they could contribute to achieve this goal. 2 References The follow

24、ing 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 references are subject to revision; users of this Recomm

25、endation 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 to a document within this Recommendation does not g

26、ive it, as a stand-alone document, the status of a Recommendation. ITU-T Y.2701 Recommendation ITU-T Y.2701 (2007), Security requirements for NGN release 1. ITU-T Y.3001 Recommendation ITU-T Y.3001 (2011), Future Networks: Objectives and Design Goals. 3 Definitions 3.1 Terms defined elsewhere This R

27、ecommendation uses the following terms defined elsewhere: 3.1.1 future network 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 new component network or an enhanced version of an

28、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 1 The plural form “Future Networks“ (FNs) is used to show that there may be more than one network that fits the definition of a future networ

29、k. NOTE 2 A network of type b may also include networks of type a. NOTE 3 The label assigned to the final federation may, or may not, include the word “future“, depending on its nature relative to any preceding network and similarities thereto. NOTE 4 The word “difficult“ does not preclude some curr

30、ent technologies from being used in future networks. 2 Rec. ITU-T Y.3035 (06/2015) NOTE 5 In the context of this Recommendation, the word “new“ applied to a component network means that the component network is able to provide services, capabilities, and facilities that are difficult or impossible t

31、o provide using existing network technologies. 3.1.2 service universalization ITU-T Y.3001: A process to provide telecommunication services to every individual or group of people irrespective of social, geographical, and economical status. 3.2 Terms defined in this Recommendation None. 4 Abbreviatio

32、ns and acronyms This Recommendation uses the following abbreviations and acronyms: CAPEX Capital Expenditure FN Future Network IP Internet Protocol NaaS Network as a Service OPEX Operational Expenditure VPN Virtual Private Network 5 Conventions This Recommendation uses “is recommended“ to indicate a

33、 requirement which is recommended but which is not absolutely required. Thus, this requirement need not be present to claim conformance. 6 Introduction Increasing the access to information provided through telecommunications infrastructure is important to enhance social and digital inclusion, especi

34、ally in developing countries. Aiming to bridge the digital gap, it is highly recommended for FNs to promote service universalization by enhancing awareness of the importance of developing technologies that facilitate the deployment of networks and provision of services everywhere to every individual

35、. Social and economic awareness is one out of four design objectives for FNs defined in ITU-T Y.3001. This objective aims to reduce entry barriers for the various actors involved in the network ecosystem, by reducing life cycle costs, and by allowing appropriate competition and an appropriate return

36、 for all actors. Accordingly, ITU-T Y.3001 identifies the design goal of service universalization. Through it the FNs are recommended to facilitate and accelerate provision of telecommunication services in differing areas, such as towns or countryside, in developed or developing countries, by minimi

37、zing the costs of network deployment and by adopting collaborative design of new technologies. Thus, the Recommendation at hand identifies the objective, requirements, and technical considerations important to promote service universalization. 7 Stimulating service universalization through FNs deplo

38、yment In order to better analyse the conditions and actions needed to enhance service universalization, it is possible to identify four areas of service provision, as shown in Figure 1. Rec. ITU-T Y.3035 (06/2015) 3 Figure 1 Four different geographic areas of service provision Current served area an

39、d planned expansions: geographic region where telecommunication services are already provided or are planned to be provided in a short timeframe, due to its high-income potential and affordable capital expenditure (CAPEX) and operational expenditure (OPEX) requirements for operators; Attractive area

40、: geographic region where the telecommunication services are not provided yet despite of its high-income potential and moderated level of CAPEX and OPEX requested; Sustainable area: geographic region with CAPEX and OPEX requirements and relatively high and low incomes expectations, which becomes eco

41、nomically attractive only after an initial incentive by the government in the infrastructure deployment; Unattractive area: geographic region with high CAPEX and OPEX requirements and low incomes expected in a way that the provision of telecommunication services is only viable with continuous regula

42、tory intervention. In this approach, the geographic regions are classified by economic attractiveness from the operators perspective, which is related to how sustainable the financial return is to provide service to an area based on the CAPEX and OPEX required and the incomes expected by the operato

43、rs. Given that, the main objective of stimulating service universalization through FNs deployment is to make possible expanding current served and attractive areas by reducing sustainable and unattractive areas through more efficient regulatory interventions. The requirements and technical considera

44、tions that should be taken into account to achieve this objective will be described in the next clauses. 8 Requirements for service universalization Aiming to achieve the objective described in the previous clause, this clause specifies requirements for service universalization. 4 Rec. ITU-T Y.3035

45、(06/2015) 8.1 Measurement of network resources by service Measurement of network resources by service is to analyse the network resources allocation by each service provided. In packet-based networks, where the same infrastructure can provide various services, this possibility allows efficient regul

46、atory interventions directed to service universalization into sustainable and unattractive areas. Therefore, the measurement of network resources by service is recommended to facilitate service universalization. 8.2 Flexible network deployment Flexible network deployment is to dynamically allocate o

47、nly the resources required to address a specific demand of a telecommunication service, in order to reduce CAPEX and OPEX and to promote network infrastructure deployment into sustainable and unattractive areas. Therefore, flexible network deployment is recommended to promote service universalizatio

48、n. 8.3 Collaborative development Collaborative development is a joint effort to develop new technologies based on open standards, in order to promote innovation and facilitate the deployment of low CAPEX and OPEX telecommunication services into sustainable and unattractive areas. Therefore, collabor

49、ative development is recommended to promote service universalization. 8.4 Use of green technologies Use of green technologies is the adoption of technologies with small levels of heat and CO2 emissions and lower energy consumption, allowing a lower level of OPEX requested for operators to maintain service provision in sustainable and unattractive areas. Therefore, use of green technologies is recommended to promote service universalization. 9 Technical considerations to facilitate ser