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.2341 TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (03/2017) SERIES Y: GLOBAL INFORMATION INFRASTRUCTURE, INTERNET PROTOCOL ASPECTS, NEXT-GENERATION NETWORKS, INTERNET OF THINGS AND SMART CITIES Next Generation Networks
2、 Enhancements to NGN Next generation network evolution Requirements and capabilities for supporting authorized account messaging service Recommendation ITU-T Y.2341 ITU-T Y-SERIES RECOMMENDATIONS GLOBAL INFORMATION INFRASTRUCTURE, INTERNET PROTOCOL ASPECTS, NEXT-GENERATION NETWORKS, INTERNET OF THIN
3、GS AND SMART CITIES GLOBAL INFORMATION 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.79
4、9 Performances Y.800Y.899 INTERNET 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 Sig
5、nalling 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 functional architecture models Y.2000Y.2099 Quality of Service and performance Y.2100Y.2199 Service aspects: Service capabilities and s
6、ervice 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.2400Y.2499 Network control architectures and protocols Y.2500Y.2599 Packet-based Networks Y.2600Y.2699 Security Y.2700Y.2799 Generaliz
7、ed mobility Y.2800Y.2899 Carrier grade open environment 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, c
8、onnectivity and networks Y.4250Y.4399 Frameworks, 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
9、 details, please refer to the list of ITU-T Recommendations. Rec. ITU-T Y.2341 (03/2017) i Recommendation ITU-T Y.2341 Next generation network evolution Requirements and capabilities for supporting authorized account messaging service Summary Recommendation ITU-T Y.2341 specifies requirements of pro
10、file management, identification, messaging related features, open API, resource allocation and policy control, as well as capabilities support of service stratum, transport stratum and end user in next generation network (NGN) evolution for supporting authorized account messaging service. History Ed
11、ition Recommendation Approval Study Group Unique ID* 1.0 ITU-T Y.2341 2017-03-29 13 11.1002/1000/13250 Keywords Authorized account messaging service, IP multimedia subsystem, IMS, next generation network, NGN. * To access the Recommendation, type the URL http:/handle.itu.int/ in the address field of
12、 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.2341 (03/2017) FOREWORD The International Telecommunication Union (ITU) is the United Nations specialized agency in the field of telecommunications, information and
13、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 with a view to standardizing telecommunications on a worldwide basi
14、s. 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 Recommendations is covered by the procedure laid down in WTSA Resolu
15、tion 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 “Administration“ is used for conciseness to indicate both a telecommunication administration a
16、nd 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 compliance with the Recommendation is achieved when all of these mandatory provisions are
17、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 required of any party. INTELLECTUAL PROPERTY RIGHTSITU draws attention to the possi
18、bility 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 Intellectual Property Rights, whether asserted by ITU members or others outside of the R
19、ecommendation 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. However, implementers are cautioned that this may not represent the latest informa
20、tion 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 this publication may be reproduced, by any means whatsoever, without the prior written permission of ITU. Rec. ITU-T Y.2341 (03/2017) iii Table of Conten
21、ts Page 1 Scope . 1 2 References . 1 3 Definitions 1 3.1 Terms defined elsewhere 1 3.2 Terms defined in this Recommendation . 2 4 Abbreviations and acronyms 2 5 Conventions 3 6 Introduction of NGN evolution for supporting authorized account messaging service . 3 7 Requirements of NGN evolution for a
22、uthorized account messaging service support 4 7.1 Requirements of profile management 4 7.2 Requirements of identification . 4 7.3 Requirements of messaging related features 4 7.4 Requirements of open API . 5 7.5 Requirements of resource allocation and policy control 5 8 Capabilities of NGN evolution
23、 for authorized account messaging service support . 5 8.1 Capability framework overview . 5 8.2 Service stratum . 6 8.3 Transport stratum 7 8.4 End user 7 9 Security considerations of NGN evolution for supporting authorized account messaging service . 7 Appendix I Scenarios of authorized account mes
24、saging service 8 I.1 Subscribe and notify scenario . 8 I.2 Interactive application scenario 9 Bibliography. 11 Rec. ITU-T Y.2341 (03/2017) 1 Recommendation ITU-T Y.2341 Next generation network evolution Requirements and capabilities for supporting authorized account messaging service 1 Scope This Re
25、commendation specifies requirements and capabilities of next generation network (NGN) evolution for supporting authorized account messaging service, in order to enable a NGN end user to subscribe a profile of the entity (third-party provider) for accessing the information via messaging exchange. Thi
26、s Recommendation introduces a basic scheme and business roles for authorized account messaging service support in NGN evolution, and it also specifies the requirements and the capabilities of authorized account messaging service in NGN evolution. Relevant scenarios for authorized account messaging s
27、ervice are provided in Appendix I. 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 othe
28、r 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 published. The ref
29、erence to a document within this Recommendation does not give it, as a stand-alone document, the status of a Recommendation. ITU-T Y.2012 Recommendation ITU-T Y.2012 (2010), Functional requirements and architecture of next generation networks. ITU-T Y.2021 Recommendation ITU-T Y.2021 (2006), IMS for
30、 Next Generation Networks. ITU-T Y.2111 Recommendation ITU-T Y.2111 (2011), Resource and admission control functions in next generation networks. ITU-T Y.2201 Recommendation ITU-T Y.2201 (2006), Functional requirements and architecture of the NGN release 1. ITU-T Y.2234 Recommendation ITU-T Y.2234 (
31、2008), Open service environment capabilities for NGN. ITU-T Y.2240 Recommendation ITU-T Y.2240 (2011), Requirements and capabilities for next generation network service integration and delivery environment. ITU-T Y.2701 Recommendation ITU-T Y.2701 (2007), Security requirements for NGN release 1. ITU
32、-T Y.2702 Recommendation ITU-T Y.2702 (2008), Authentication and authorization requirements for NGN release 1. 3 Definitions 3.1 Terms defined elsewhere This Recommendation uses the following terms defined elsewhere: 3.1.1 application b-ITU-T Y.2013: A software entity residing on an application serv
33、er that contributes to the delivery of an end user service. 2 Rec. ITU-T Y.2341 (03/2017) 3.1.2 application network interface (ANI) ITU-T Y.2012: Interface which provides a channel for interactions and exchanges between applications and NGN elements. The ANI offers capabilities and resources needed
34、for the realization of applications. 3.1.3 application programming interface (API) b-ITU-T I.312: An API provides a set of interfaces from an application environment to an execution environment. The execution environment provides services to the application environment. 3.1.4 next generation network
35、 (NGN) b-ITU-T Y.2001: A packet-based network 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 underlying transport-related technologies. It enables unfettered access
36、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. 3.1.5 NGN service stratum b-ITU-T Y.2011: That part of the NGN which provides the user functions that
37、transfer service-related data and the functions that control and manage service resources and network services to enable user services and applications. 3.1.6 NGN transport stratum b-ITU-T Y.2011: That part of the NGN which provides the user functions that transfer data and the functions that contro
38、l and manage transport resources to carry such data between terminating entities. 3.1.7 open service environment capabilities ITU-T Y.2234: Capabilities provided by an open service environment to enable enhanced and flexible service creation and provisioning based on the use of standards interfaces.
39、 3.1.8 service b-ITU-T Y.2091: A set of functions and facilities offered to a user by a provider. 3.2 Terms defined in this Recommendation This Recommendation defines the following terms: 3.2.1 authorized account: A profile of the entity which a NGN end user can subscribe for accessing the informati
40、on via messaging exchange. NOTE 1 authorized means the account is sanctioned and recognized by the service provider (third-party provider) and it is always available to be accessed. NOTE 2 The profile is a numeric string which includes the identity of the entity and the service information of the en
41、tity. 3.2.2 authorized account messaging service: A messaging service through which third-party provider can register to an authorized account and interact with the account subscribers via messaging exchange. 4 Abbreviations and acronyms This Recommendation uses the following abbreviations and acron
42、yms: AAMS Authorized Account Messaging Service ANI Application Network Interface API Application Programming Interface IMS IP Multimedia Subsystem NGN Next Generation Network OSE Open Service Environment QoS Quality of Service Rec. ITU-T Y.2341 (03/2017) 3 RACF Resource and Admission Control Functio
43、n SUP Service User Profile UE User Equipment UNI User Network Interface UTF Unicode Transformation Format 5 Conventions In this Recommendation: The keywords is required to indicate a requirement which must be strictly followed and from which no deviation is permitted if conformance to this Recommend
44、ation is to be claimed. The keywords is prohibited from indicate a requirement which must be strictly followed and from which no deviation is permitted if conformance to this Recommendation is to be claimed. The keywords is recommended indicate a requirement which is recommended but which is not abs
45、olutely required. Thus this requirement need not be present to claim conformance. The keywords is not recommended indicate a requirement which is not recommended but which is not specifically prohibited. Thus, conformance with this specification can still be claimed even if this requirement is prese
46、nt. The keywords can optionally indicate an optional requirement which is permissible, without implying any sense of being recommended. This term is not intended to imply that the vendors implementation must provide the option and the feature can be optionally enabled by the network operator/service
47、 provider. Rather, it means the vendor may optionally provide the feature and still claim conformance with the specification. 6 Introduction of NGN evolution for supporting authorized account messaging service Authorized account messaging service is a messaging service through which the authorized a
48、ccount owner of the service (third-party provider) can register to an authorized account and interact with the authorized account subscribers (NGN end user) via messaging exchange (provided by the NGN provider). The content of these messages can vary, including text, image, video, audio, location in
49、formation and other types of information. Figure 1 provides the basic scheme for authorized account messaging service, which shows the related business roles and interactions among them. Figure 1 Basic scheme for authorized account messaging service 4 Rec. ITU-T Y.2341 (03/2017) In the basic scheme for authorized account messaging service, three business roles are identified: NGN provider: the NGN provider provides the messaging service, which realizes the co
