1、 International Telecommunication Union ITU-T Y.2221TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (01/2010) SERIES Y: GLOBAL INFORMATION INFRASTRUCTURE, INTERNET PROTOCOL ASPECTS AND NEXT-GENERATION NETWORKS Next Generation Networks Service aspects: Service capabilities and service architecture Req
2、uirements for support of ubiquitous sensor network (USN) applications and services in the NGN environment Recommendation ITU-T Y.2221 ITU-T Y-SERIES RECOMMENDATIONS GLOBAL INFORMATION INFRASTRUCTURE, INTERNET PROTOCOL ASPECTS AND NEXT-GENERATION NETWORKS GLOBAL INFORMATION INFRASTRUCTURE General Y.1
3、00Y.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 ASPECTS General Y.100
4、0Y.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, administration and maintenance Y.
5、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 aspects: Interoperabilit
6、y 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 Future networks Y.2600Y.2699 Security Y.2700Y.2799 Generalized mobility Y.2800Y.2899 Carrier grade open environment Y.
7、2900Y.2999 For further details, please refer to the list of ITU-T Recommendations. Rec. ITU-T Y.2221 (01/2010) i Recommendation ITU-T Y.2221 Requirements for support of ubiquitous sensor network (USN) applications and services in the NGN environment Summary Recommendation ITU-T Y.2221 provides a des
8、cription and general characteristics of ubiquitous sensor network (USN) and USN applications and services. It also analyses the service requirements of USN applications and services, and specifies the extended or new NGN capability requirements based on the service requirements. History Edition Reco
9、mmendation Approval Study Group 1.0 ITU-T Y.2221 2010-01-13 13 Keywords NGN, sensor networks, ubiquitous sensor network (USN), USN applications and services, wireless sensor networks (WSNs). ii Rec. ITU-T Y.2221 (01/2010) FOREWORD The International Telecommunication Union (ITU) is the United Nations
10、 specialized 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
11、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 approval of IT
12、U-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 “Administration“ is us
13、ed 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 compliance with the
14、 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 required of
15、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 Intellectual Pro
16、perty 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. However, i
17、mplementers 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 2010 All rights reserved. No part of this publication may be reproduced, by any means whatsoever, without the prior wr
18、itten permission of ITU. Rec. ITU-T Y.2221 (01/2010) iii CONTENTS Page 1 Scope 1 2 References. 1 3 Definitions 2 3.1 Terms defined elsewhere 2 3.2 Terms defined in this Recommendation . 2 4 Abbreviations and acronyms 2 5 Conventions 3 6 USN description and characteristics . 3 7 Service requirements
19、of USN applications and services 5 7.1 Sensor network management 5 7.2 Profile management 6 7.3 Open service environment 6 7.4 Quality of service (QoS) support 7 7.5 Connectivity . 8 7.6 Location-based service support 8 7.7 Mobility support . 8 7.8 Security . 9 7.9 Identification, authentication and
20、 authorization . 9 7.10 Privacy 10 7.11 Accounting and charging 10 8 NGN capability requirements for support of USN applications and services 10 8.1 Requirements for extensions or additions to NGN capabilities . 10 8.2 Requirements supported by existing NGN capabilities 12 9 Reference diagram of NGN
21、 capabilities for support of USN applications and services . 13 10 Security considerations . 13 Appendix I Use-cases of USN applications and services . 14 I.1 Weather information service 14 I.2 Healthcare service 17 I.3 Environmental and situational information service using public transportation 18
22、 Appendix II Capability requirements for support of USN applications and services not directly affecting the NGN . 20 II.1 Power conservation (sensors node) 20 II.2 Network formation: auto-configuration and self-healing (sensor networks) 20 II.3 Addressing mechanisms . 20 II.4 ID design 21 iv Rec. I
23、TU-T Y.2221 (01/2010) Page II.5 Sensor nodes mobility support . 21 II.6 Secure control messages . 21 II.7 Lightweight routing 21 II.8 Connectivity . 22 Bibliography. 23 Rec. ITU-T Y.2221 (01/2010) 1 Recommendation ITU-T Y.2221 Requirements for support of ubiquitous sensor network (USN) applications
24、and services in the NGN environment 1 Scope This Recommendation, based on ITU-T Y.2201, covers extensions and additions to NGN capabilities in order to support ubiquitous sensor network (USN) applications and services b-ITU-T Y.Sup.7 in the NGN environment. The scope of this Recommendation includes:
25、 Description and general characteristics of USN and USN applications and services; Service requirements to support USN applications and services; Requirements of extended or new NGN capabilities based on the service requirements. The NGN functional architecture extensions for support of the identifi
26、ed extended or new NGN capabilities are out of scope of this Recommendation. 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 indicate
27、d were valid. 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 Recom
28、mendations 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 Q.1703 Recommendation ITU-T Q.1703 (2004), Service and network capabilities framework of network aspects for systems beyond IMT
29、-2000. ITU-T Q.1706 Recommendation ITU-T Q.1706/Y.2801 (2006), Mobility management requirements for NGN. ITU-T Y.2012 Recommendation ITU-T Y.2012 (2006), Functional requirements and architecture of the NGN release 1. ITU-T Y.2201 Recommendation ITU-T Y.2201 (2009), Requirements and capabilities for
30、ITU-T NGN. ITU-T Y.2233 Recommendation ITU-T Y.2233 (2008), Requirements and framework allowing accounting and charging capabilities in NGN. ITU-T Y.2234 Recommendation ITU-T Y.2234 (2008), Open service environment capabilities for NGN. ITU-T Y.2701 Recommendation ITU-T Y.2701 (2007), Security requi
31、rements for NGN release 1. ITU-T Y.2702 Recommendation ITU-T Y.2702 (2008), Authentication and authorization requirements for NGN release 1. ITU-T Z.100 Recommendation ITU-T Z.100 (1999), Specification and Description Language (SDL). 2 Rec. ITU-T Y.2221 (01/2010) 3 Definitions 3.1 Terms defined else
32、where This Recommendation uses the following terms defined elsewhere: 3.1.1 context awareness ITU-T Y.2201: A capability to determine or influence a next action in telecommunication or process by referring to the status of relevant entities, which form a coherent environment as a context. 3.1.2 netw
33、ork mobility ITU-T Q.1703: The ability of a network, where a set of fixed or mobile nodes are networked to each other, to change, as a unit, its point of attachment to the corresponding network upon the networks movement itself. 3.1.3 open service environment capabilities ITU-T Y.2234: Capabilities
34、provided by open service environment to enable enhanced and flexible service creation and provisioning based on the use of standards interfaces. 3.2 Terms defined in this Recommendation This Recommendation defines the following terms: 3.2.1 sensor: An electronic device that senses a physical conditi
35、on or chemical compound and delivers an electronic signal proportional to the observed characteristic. 3.2.2 sensor network: A network comprised of interconnected sensor nodes exchanging sensed data by wired or wireless communication. 3.2.3 sensor node: A device consisting of sensor(s) and optional
36、actuator(s) with capabilities of sensed data processing and networking. 3.2.4 service: A set of functions and facilities offered to a user by a provider. 3.2.5 service description language: A language for the specification of event-driven systems, in particular telecommunication systems, and an obje
37、ct-oriented formal language intended for the specification of complex, event-driven, real-time, and interactive applications involving many concurrent activities that communicate using discrete signals. 3.2.6 ubiquitous sensor network (USN): A conceptual network built over existing physical networks
38、 which makes use of sensed data and provides knowledge services to anyone, anywhere and at anytime, and where the information is generated by using context awareness. 3.2.7 USN end-user: An entity that uses the sensed data provided by USN applications and services. This end-user may be a system or a
39、 human. 3.2.8 USN gateway: A node which interconnects sensor networks with other networks. 3.2.9 USN middleware: A set of logical functions to support USN applications and services. NOTE 1 The functionalities of USN middleware include sensor network management and connectivity, event processing, sen
40、sor data mining, etc. NOTE 2 In the NGN environment, functions of the USN middleware may be provided by the NGN open service environment (OSE) capabilities ITU-T Y.2234 and/or by other NGN capabilities. However, some of the USN middleware functions (e.g., those for supporting interface to sensor net
41、works) may not be provided by the NGN OSE capabilities or other NGN capabilities. 4 Abbreviations and acronyms This Recommendation uses the following abbreviations and acronyms: CDMA Code Division Multiple Access IP Internet Protocol Rec. ITU-T Y.2221 (01/2010) 3 ITS Intelligent Transportation Syste
42、m MAC Media Access Control MAN Metropolitan Area Network NGN Next Generation Network OSE Open Service Environment PHY PHYsical layer QoS Quality of Service USN Ubiquitous Sensor Network WCDMA Wideband CDMA WiMAX Worldwide Interoperability for Microwave Access WMN Wireless Mesh Network WPAN Wireless
43、Personal Area Network WSN Wireless Sensor Network 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 Recommendation is to be claimed. The keywords “is recommended“
44、indicate a requirement which is recommended but which is not absolutely required. Thus, this requirement need not be present to claim conformance. The keywords “can optionally“ and “may“ indicate an optional requirement which is permissible, without implying any sense of being recommended. These ter
45、ms are not intended to imply that the vendors implementation must provide the option and the feature can be optionally enabled by the network operator/service provider. Rather, it means the vendor may optionally provide the feature and still claim conformance with the specification. 6 USN descriptio
46、n and characteristics Ubiquitous sensor network (USN), as defined in clause 3.2.6, is a conceptual network built over existing physical networks which makes use of sensed data and provides knowledge services to anyone, anywhere and at anytime, and where the information is generated by using context
47、awareness. USN utilizes wireline sensor networks and/or wireless sensor networks (WSNs). WSNs are wireless networks consisting of interconnected and spatially distributed autonomous devices using sensors to cooperatively monitor physical or environmental conditions (e.g., temperature, sound, vibrati
48、on, pressure, motion or pollutants) at different locations. Up to now, WSNs were generally implemented as isolated networks. Simple design of applications and services based on isolated sensor networks is made by the capture and transmission of collected sensed data to designated application systems
49、. Such isolated, simple applications and services have been evolving over the years through deployment of networks, based upon advanced hardware and software technologies that provide network and service integration, data processing schemes enhanced by business logic and by data mining rules, context-awareness schemes, etc. These technical developments enable the ability to build an intelligent information infrastructure of sensor networks connected to the existing network 4 Rec. ITU-T Y.2
