1、 INTERNATIONAL TELECOMMUNICATION UNION ITU-T Y.140.1TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (03/2004) SERIES Y: GLOBAL INFORMATION INFRASTRUCTURE, INTERNET PROTOCOL ASPECTS AND NEXT GENERATION NETWORKS Global information infrastructure General Guideline for attributes and requirements for in
2、terconnection between public telecommunication network operators and service providers involved in provision of telecommunication services ITU-T Recommendation Y.140.1 ITU-T Y-SERIES RECOMMENDATIONS GLOBAL INFORMATION INFRASTRUCTURE, INTERNET PROTOCOL ASPECTS AND NEXT GENERATION NETWORKS GLOBAL INFO
3、RMATION INFRASTRUCTURE 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 INTER
4、NET PROTOCOL ASPECTS 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,
5、 administration and maintenance Y.1700Y.1799 Charging Y.1800Y.1899 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: Interope
6、rability of services and networks in NGN Y.2250Y.2299 Numbering, naming and addressing Y.2300Y.2399 Network management Y.2400Y.2499 Network control architectures and protocols Y.2500Y.2599 Security Y.2700Y.2799 Generalized mobility Y.2800Y.2899 For further details, please refer to the list of ITU-T
7、Recommendations. ITU-T Rec. Y.140.1 (03/2004) i ITU-T Recommendation Y.140.1 Guideline for attributes and requirements for interconnection between public telecommunication network operators and service providers involved in provision of telecommunication service Summary Based on the framework set fo
8、rth in ITU-T Rec. Y.140, this Recommendation concentrates on one of the interconnection scenarios relevant to GII, the interconnection between operators of public telecommunication networks (PTNOs) and service providers (SPs). After looking at the situation before and during transition to a full imp
9、lementation of the so-called enterprise model, attributes of reference points for interconnection between PTNOs and SPs are dealt with in some detail. Separate clauses treat the various aspects of these attributes, in particular, security, service interaction, charging/billing, service availability,
10、 access to a network address and management. The content of this Recommendation should be seen as a guideline for consideration by involved parties when implementing the GII concept within a Next Generation Network. Source ITU-T Recommendation Y.140.1 was approved on 29 March 2004 by ITU-T Study Gro
11、up 13 (2001-2004) under the ITU-T Recommendation A.8 procedure. Keywords Essential requirements for service provision, Global Information Infrastructure, interconnection, interconnection interfaces, public policy, reference points for interconnection. ii ITU-T Rec. Y.140.1 (03/2004) FOREWORD The Int
12、ernational Telecommunication Union (ITU) is the United Nations specialized agency in the field of telecommunications. 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 Recommen
13、dations 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, produce Recommendations on these topics. The app
14、roval 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 this Recommendation, the expression “Administra
15、tion“ 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. interoperability or applicability) and complianc
16、e 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 suggest that compliance with the Recommendation is re
17、quired 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 evidence, validity or applicability of claimed Intell
18、ectual 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 be required to implement this Recommendation.
19、However, implementors are cautioned that this may not represent the latest information and are therefore strongly urged to consult the TSB patent database. ITU 2004 All rights reserved. No part of this publication may be reproduced, by any means whatsoever, without the prior written permission of IT
20、U. ITU-T Rec. Y.140.1 (03/2004) iii CONTENTS Page 1 Scope and purpose 1 2 References. 2 3 Terms and definitions . 3 4 Abbreviations 4 5 Security. 5 6 Situation before and during transition to a full implementation of the enterprise model 5 7 Attributes of reference points for interconnection between
21、 PTNOs and SPs. 6 7.1 Security aspects 6 7.2 Service interaction aspects . 10 7.3 Charging/billing aspects . 10 7.4 Service availability . 11 7.5 Access to a network address. 11 7.6 Management aspects. 11 8 Requirements and their priorities at RPIs. 13 BIBLIOGRAPHY 13 iv ITU-T Rec. Y.140.1 (03/2004)
22、 Introduction The objective of this Recommendation is to elaborate on one aspect of ITU-T Rec. Y.140 and is intended to supplement it. The reader should be aware of the content and considerations of ITU-T Rec. Y.140. ITU-T Rec. Y.140 describes the reference points for technical interconnection betwe
23、en various entities involved in the provision of telecommunication services. One of the areas identified by ITU-T Rec. Y.140 as to where technical interconnection is required, is “for the access and/or interconnection of a service provider to products of a public network operator“ (item b of clause
24、8/Y.140). This Recommendation (ITU-T Rec. Y.140.1) looks in more detail at this relationship between the service provider and the network operator, and at the elements of the interconnection interface that results as a consequence of this relationship. It needs to be recognized at the outset that th
25、e elements of the technical interconnection between these two entities, the network operator and the service provider, arise not only from the needs of these two entities. External forces also play a role in determining the elements of interconnection that will exist between these two entities. For
26、example, service subscribers needs will also influence the nature of the interconnection between the network operator and the service provider. Also, government regulators may impose certain requirements on the nature of the interconnection between the two parties. (It is to be noted in passing that
27、 there may be an inverse relationship between the extent to which the network operator and the service provider take the needs of the service subscriber into account voluntarily, and the need for government regulation, as a matter of public policy, to require the two entities to do so. If the networ
28、k operator and service provider act voluntarily in a way that satisfies public policy, the need for government regulation may be reduced. This relationship is also known as co-regulation.) Also, the nature of the technical interconnection that is agreed upon between the two parties will need to be c
29、aptured in a contractual agreement between them. Figure 1 portrays these relationships in diagram form. The focus of this Recommendation is on the technical aspects of the interconnection between the network operator and the service area (the shaded area). However, it is recognized that the interest
30、s of other parties (identified in the diagram outside the shaded area) may impact this relationship. Therefore, although the Recommendation only addresses the shaded area, references in the Recommendation are made, where appropriate, to identify places where these external forces may impact these re
31、ference points. Contractual agreements are also outside the scope of this Recommendation. Also, in some places, the Recommendation identifies reference points that may be impacted by external contractual agreements. More background information about how the influence of the changing regulatory envir
32、onment may impact the technical aspects of these reference points may be found in the attached bibliography. ITU-T Rec. Y.140.1 (03/2004) 1 ITU-T Recommendation Y.140.1 Guideline for attributes and requirements for interconnection between public telecommunication network operators and service provid
33、ers involved in provision of telecommunication services 1 Scope and purpose This Recommendation deals with the interconnection of service providers and (public) networks (in short, this type of interconnection will be called service provider access). The Recommendation should not be seen as an oblig
34、ation for the parties involved, but should be considered as a Guideline assisting in recognizing and implementing the adequate essential attributes and/or requirements in a voluntary manner facilitating the public policy objectives. Therefore, two aspects/perspectives have to be considered: a) servi
35、ce providers requirements on network operators in delivering telecommunication services; and b) network operators requirements for the provision of service provider access. As illustrated in Figure 1/Y.140, a set of possible reference points for interconnection (RPIs) is introduced. In clause 8/Y.14
36、0, it is pointed out that there might be a couple of essential attributes and/or requirements relating to different classes of interconnection interfaces. Class b of these relates to the interconnection of service providers to (products of) public network operators. This Recommendation proposes a de
37、scription of attributes/requirements for the class b interconnection interfaces. Indirect SPA, i.e., accesses where intermediate networks are involved, will not be considered in this Recommendation. An example of a possible scenario is given in Figure 1. It shows an environment of involved parties w
38、here many different roles and relationships exist. In this Recommendation, only the grey shadowed area is dealt with. 2 ITU-T Rec. Y.140.1 (03/2004) Figure 1/Y.140.1 Example of relationships between involved parties The scope of this Recommendation is to describe generic functional requirements rega
39、rding the service provider access. The priority of each requirement is based on the need perceived from the viewpoint of either the service provider, a, or the (public) network operator, b. To fulfil these requirements, appropriate protocols may have to be enhanced or developed, particularly taking
40、into account network integrity considerations. 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 Recommendati
41、ons and other references 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 publis
42、hed. The reference to a document within this Recommendation does not give it, as a stand-alone document, the status of a Recommendation. 1 ITU-T Recommendation F.115 (1995), Service objectives and principles for future public land mobile telecommunication systems. 2 ITU-T Recommendation H.235 (2003)
43、, Security and encryption for H-series (H.323 and other H.245-based) multimedia terminals. 3 ITU-T Recommendation J.93 (1998), Requirements for conditional access in the secondary distribution of digital television on cable television systems. 4 ITU-T Recommendation J.95 (1999), Copy protection of i
44、ntellectual property for content delivered on cable television systems. 5 ITU-T Recommendation Q.1290 (1998), Glossary of terms used in the definition of intelligent networks. 6 ITU-T Recommendation X.800 (1991) | ISO/IEC 7498-2:1989, Security architecture for Open Systems Interconnection for CCITT
45、applications. ITU-T Rec. Y.140.1 (03/2004) 3 7 ITU-T Recommendation Y.140 (2000), Global Information Infrastructure (GII): Reference points for interconnection framework. 8 ISO 7498-2:1989, Information processing systems Open Systems Interconnection Basic Reference Model Part 2: Security Architectur
46、e. 9 ETSI ES 201671 V2.1.1 (2001), Telecommunications security; Lawful Interception (LI); Handover interface for the lawful interception of telecommunications traffic. 10 ETSI TS 101 331 V1.1.1 (2001), Telecommunications security; Lawful Interception (LI); Requirements of Law Enforcement Agencies. 1
47、1 ETSI ETR 232 ed.1 (1995), Glossary of security terminology. 12 ETSI EG 201 722 V1.2.1 (2000), Intelligent Network (IN); Service provider access requirements; Enhanced telephony services. 13 ETSI EG 201 781 V1.1.1 (2000), Intelligent Network (IN); Lawful interception. 14 ETSI EG 201 807 V1.1.1 (200
48、0), Network operators requirements for the delivery of service provider access. 15 ETSI EG 201 897 V1.2.1 (2002), Service Provider Access Requirements in a Fixed and Mobile Environment. 16 ETSI EG 201 899 V1.1.1 (2001), Modelling Service Provider Access Requirements using an API Approach. 17 ETSI EG
49、 201 916 V1.1.1 (2001), Development of standards to support Open Inter-Network Interfaces and Service Provider Access. 18 ETSI EG 201 965 V1.1.1 (2001), Service Provider Access Management Requirements for Open Network Access. 3 Terms and definitions For the purpose of this Recommendation, the term “Service“ or “service“ is used in a broader sense and should not be understood in the limited sense of the defined term of ITU-T SG 2 as fully specified “Telecommunication Service“. For the purpose of this Recommendation,
