1、 International Telecommunication Union ITU-T Y.2007TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (01/2010) SERIES Y: GLOBAL INFORMATION INFRASTRUCTURE, INTERNET PROTOCOL ASPECTS AND NEXT-GENERATION NETWORKS Next Generation Networks Frameworks and functional architecture models NGN capability set 2
2、 Recommendation ITU-T Y.2007 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 protoc
3、ols 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 ma
4、nagement 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 funct
5、ional 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 addressing Y.2300Y.2399 Network manag
6、ement Y.2400Y.2499 Network control architectures and protocols Y.2500Y.2599 Future networks Y.2600Y.2699 Security Y.2700Y.2799 Generalized mobility Y.2800Y.2899 Carrier grade open environment Y.2900Y.2999 For further details, please refer to the list of ITU-T Recommendations. Rec. ITU-T Y.2007 (01/2
7、010) i Recommendation ITU-T Y.2007 NGN capability set 2 Summary Recommendation ITU-T Y.2007 aligns with fundamental ITU-T documents for NGN, such as: Supplement 7 to ITU-T Y-series Recommendations regarding NGN release 2 scope; Recommendation ITU-T Y.2201 on requirements and capabilities for ITU-T N
8、GN; Recommendation ITU-T Y.2012 dealing with functional requirements and architecture of NGN; technical specifications (e.g., protocol related) identified as being part of NGN capability set 2. NGN capability set 2 includes all features of NGN capability set 1 (Recommendation ITU-T Y.2006) and featu
9、res related to Internet protocol television (IPTV) basic services such as linear TV and video on demand services. Moreover, it provides a description of the network framework and protocols that have been standardized in ITU-T. History Edition Recommendation Approval Study Group 1.0 ITU-T Y.2007 2010
10、-01-29 13 ii Rec. ITU-T Y.2007 (01/2010) 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 or
11、gan 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 every four years, establishes the
12、 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 purview, the necessary standards are
13、 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 voluntary. However, the Recommendati
14、on 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 the negative equivalents are used
15、to express requirements. The use of such words does not suggest 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 Intellectu
16、al 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 Recommendation, ITU had not received no
17、tice 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 http:/www.itu.int/ITU-T/ipr/. ITU
18、 2010 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.2007 (01/2010) iii CONTENTS Page 1 Scope 1 2 References. 1 3 Terms and definitions . 4 3.1 Terms defined elsewhere 4 3.2 Terms defined in this
19、Recommendation . 4 4 Abbreviations and acronyms 4 5 Conventions 5 6 NGN environment 5 6.1 Transport functions . 6 6.2 Network-to-network interfaces (NNIs) 7 6.3 User profile functions . 7 6.4 End-user functions 7 6.5 NGN service components . 7 7 NGN capability set 2 8 7.1 Transport connectivity 8 7.
20、2 Communication modes . 9 7.3 Transport network component 9 7.4 Network attachment 9 7.5 IPv6 support 9 7.6 Multicast support 9 7.7 Routing . 9 7.8 Quality of service . 9 7.9 Identification, authentication and authorization . 9 7.10 Security . 10 7.11 Management . 10 7.12 Mobility management . 10 7.
21、13 Codecs 10 7.14 Operations and provisioning . 10 7.15 Interconnection and interworking . 10 7.16 PSTN/ISDN emulation and simulation 10 7.17 IPTV services . 11 7.18 Public interest aspect 11 8 NGN architecture overview 11 8.1 Overview of NGN architecture 11 8.2 IPTV architecture . 13 iv Rec. ITU-T
22、Y.2007 (01/2010) Page 9 Technical specifications 15 9.1 External interfaces of NGN 15 9.2 NACF-related interfaces . 15 9.3 RACF-related interfaces . 16 9.4 IPTV-related specifications 18 Appendix I Table of documents related to NGN capability set 2 . 20 Appendix II IPTV service categorization . 26 B
23、ibliography. 28 Rec. ITU-T Y.2007 (01/2010) 1 Recommendation ITU-T Y.2007 NGN capability set 2 1 Scope This Recommendation gives a description of NGN capability set 2 in terms of the overall requirements and a high-level overview of the functional features that are supported. This Recommendation als
24、o lists ITU-T Recommendations relevant to NGN capability set 2. To fulfil the general objectives and principles of the NGN identified in ITU-T Y.2001 and ITU-T Y.2011, this Recommendation focuses on key capabilities whilst ensuring that the general and long-term architectural direction of NGN is mai
25、ntained to be as flexible as possible to allow future enhancements. 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 va
26、lid. All Recommendations 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 Recommendation
27、s 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 G.1080 Recommendation ITU-T G.1080 (2008), Quality of experience requirements for IPTV services. ITU-T H.622.1 Recommendation ITU-T H.62
28、2.1 (2008), Architecture and functional requirements for home networks supporting IPTV services. ITU-T H.701 Recommendation ITU-T H.701 (2009), Content delivery error recovery for IPTV services. ITU-T H.720 Recommendation ITU-T H.720 (2008), Overview of IPTV terminal devices and end systems. ITU-T H
29、.721 Recommendation ITU-T H.721 (2009), IPTV terminal device: Basic model. ITU-T H.750 Recommendation ITU-T H.750 (2008), High-level specification of metadata for IPTV services. ITU-T H.760 Recommendation ITU-T H.760 (2009), Overview of multimedia application frameworks for IPTV services. ITU-T H.77
30、0 Recommendation ITU-T H.770 (2009), Mechanisms for service discovery and selection for IPTV services. ITU-T M.3060 Recommendation ITU-T M.3060/Y.2401 (2006), Principles for the Management of Next Generation Networks. ITU-T Q.1706 Recommendation ITU-T Q.1706/Y.2801 (2006), Mobility management requir
31、ements for NGN. ITU-T Q.3221 Recommendation ITU-T Q.3221 (2008), Requirements and protocol at the interface between the service control entity and the transport location management physical entity (S-TC1 interface). 2 Rec. ITU-T Y.2007 (01/2010) ITU-T Q.3223 Recommendation ITU-T Q.3223 (2009), Requi
32、rements and protocol for the interface between a transport location management physical entity and a policy decision physical entity (Ru Interface). ITU-T Q.3300 Recommendation ITU-T Q.3300 (2008), Architectural framework for the Q.33xx series of Recommendations. ITU-T Q.3301.1 Recommendation ITU-T
33、Q.3301.1 (2007), Resource control protocol No. 1 Protocol at the Rs interface between service control entities and the policy decision physical entity. ITU-T Q.3302.1 Recommendation ITU-T Q.3302.1 (2007), Resource control protocol No. 2 Protocol at the Rp interface between transport resource control
34、 physical entities. ITU-T Q.3303.0 Recommendation ITU-T Q.3303.0 (2007), Resource control protocol No. 3 Protocols at the Rw interface between a policy decision physical entity (PD-PE) and a policy enforcement physical entity (PE-PE): Overview. ITU-T Q.3303.1 Recommendation ITU-T Q.3303.1 (2007), Re
35、source control protocol No. 3 Protocol at the interface between a Policy Decision Physical Entity (PD-PE) and a Policy Enforcement Physical Entity (PE-PE): COPS alternative. ITU-T Q.3303.2 Recommendation ITU-T Q.3303.2 (2007), Resource control protocol No. 3 Protocol at the interface between a Polic
36、y Decision Physical Entity (PD-PE) and a Policy Enforcement Physical Entity (PE-PE) (Rw interface): H.248 alternative. ITU-T Q.3303.3 Recommendation ITU-T Q.3303.3 (2008), Resource control protocol No. 3 Protocols at the Rw interface between a policy decision physical entity (PD-PE) and a policy enf
37、orcement physical entity (PE-PE): Diameter. ITU-T Q.3304.1 Recommendation ITU-T Q.3304.1 (2007), Resource control protocol No. 4 (rcp4) Protocols at the Rc interface between a transport resource control physical entity (TRC-PE) and a transport physical entity (T-PE): COPS alternative. ITU-T Q.3304.2
38、 Recommendation ITU-T Q.3304.2 (2007), Resource control protocol No. 4 (rcp4) Protocols at the Rc interface between a transport resource control physical entity (TRC-PE) and a transport physical entity (T-PE): SNMP alternative. ITU-T Q.3305.1 Recommendation ITU-T Q.3305.1 (2008), Resource control pr
39、otocol No. 5 (rcp5) Protocol at the interface between a transport resource control physical entity (TRC-PE) and a policy decision physical entity (PD-PE) (Rt interface): Diameter-based. ITU-T Q.3306.1 Recommendation ITU-T Q.3306.1 (2009), Resource control protocol No. 6 (rcp6) - Protocol at the inte
40、rface between intra-domain policy decision physical entities (PD-PE) (Rd interface). ITU-T Q.3401 Recommendation ITU-T Q.3401 (2007), NGN NNI signalling profile (protocol set 1). ITU-T Q.3401 Amd.1 Recommendation ITU-T Q.3401 (2007) Amd.1 (2008), Extensions of NGN NNI signalling profile including vi
41、deo and data services. Rec. ITU-T Y.2007 (01/2010) 3 ITU-T Q.3402 Recommendation ITU-T Q.3402 (2008), NGN UNI signalling profile (Protocol set 1). ITU-T X.1191 Recommendation ITU-T X.1191 (2009), Functional requirements and architecture for IPTV security aspects. ITU-T Y.1901 Recommendation ITU-T Y.
42、1901 (2009), Requirements for the support of IPTV services. ITU-T Y.1910 Recommendation ITU-T Y.1910 (2008), IPTV functional architecture. ITU-T Y.2001 Recommendation ITU-T Y.2001 (2004), General overview of NGN. ITU-T Y.2006 Recommendation ITU-T Y.2006 (2008), Description of capability set 1 of NGN
43、 release 1. 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 of the NGN release 1. ITU-T Y.2014 Recommendation ITU-T Y.2014 (2008), N
44、etwork attachment control functions in next generation networks. ITU-T Y.2017 Recommendation ITU-T Y.2017 (2009), Multicast functions in next generation networks. 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/
45、ISDN emulation architecture. ITU-T Y.2111 Recommendation ITU-T Y.2111 (2008), Resource and admission control functions in next generation networks. ITU-T Y.2201 Recommendation ITU-T Y.2201 (2009), Requirements and capabilities for ITU-T NGN. ITU-T Y.2233 Recommendation ITU-T Y.2233 (2008), Requireme
46、nts and framework allowing accounting and charging capabilities in NGN. ITU-T Y.2236 Recommendation ITU-T Y.2236 (2009), Framework for NGN support of multicast-based services. ITU-T Y.2262 Recommendation ITU-T Y.2262 (2006), PSTN/ISDN emulation and simulation. ITU-T Y.2271 Recommendation ITU-T Y.227
47、1 (2006), Call server-based PSTN/ISDN emulation. ITU-T Y.2701 Recommendation ITU-T Y.2701 (2007), Security requirements for NGN release 1. ITU-T Y.2702 Recommendation ITU-T Y.2702 (2008), Authentication and authorization requirements for NGN release 1. 4 Rec. ITU-T Y.2007 (01/2010) 3 Terms and defin
48、itions 3.1 Terms defined elsewhere This Recommendation uses the following terms defined elsewhere: 3.1.1 Internet protocol television (IPTV) ITU-T Y.1901: Multimedia services such as television/video/audio/text/graphics/data delivered over IP-based networks managed to support the required level of Q
49、oS/QoE, security, interactivity and reliability 3.1.2 nomadism ITU-T Q.1706: Ability of the users to change their network access point on moving. When changing the network access point, the users service session is completely stopped and then started again, i.e., there is no service continuity or hand-over used. It is assumed that normal usage pattern is that users shut down their service session before attaching
