1、 International Telecommunication Union ITU-T Y.2222TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (04/2013) SERIES Y: GLOBAL INFORMATION INFRASTRUCTURE, INTERNET PROTOCOL ASPECTS AND NEXT-GENERATION NETWORKS Next Generation Networks Service aspects: Service capabilities and service architecture Sen
2、sor control networks and related applications in a next generation network environment Recommendation ITU-T Y.2222 ITU-T Y-SERIES RECOMMENDATIONS GLOBAL INFORMATION INFRASTRUCTURE, INTERNET PROTOCOL ASPECTS AND NEXT-GENERATION NETWORKS GLOBAL INFORMATION INFRASTRUCTURE General Y.100Y.199 Services, a
3、pplications 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.1000Y.1099 Services an
4、d 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.1700Y.1799 Charging
5、 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.2249Service aspects: Interoperability of services and ne
6、tworks 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 Generalized mobility Y.2800Y.2899 Carrier grade open environment Y.2900Y.2999 FUTURE NETWORKS
7、Y.3000Y.3499 CLOUD COMPUTING Y.3500Y.3999 For further details, please refer to the list of ITU-T Recommendations. Rec. ITU-T Y.2222 (04/2013) i Recommendation ITU-T Y.2222 Sensor control networks and related applications in a next generation network environment Summary Recommendation ITU-T Y.2222 pr
8、ovides an introduction to sensor control networks (SCNs) and related applications in a next generation network (NGN) environment. More specifically, it provides an overview of SCNs, configurations for SCN applications and service requirements of SCN applications for support in a NGN environment. His
9、tory Edition Recommendation Approval Study Group 1.0 ITU-T Y.2222 2013-04-13 13 Keywords Actuator, configurations for SCN applications, decision-making process, emergency management, gate, mote, NGN, SCN, SCN applications, SCN controller, sensor control networks, sensor networks, verification applic
10、ation. ii Rec. ITU-T Y.2222 (04/2013) 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 organ
11、 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 to
12、pics 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 pr
13、epared 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 Recommendation
14、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 to
15、 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 Intellectual
16、 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 noti
17、ce 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 2
18、014 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.2222 (04/2013) iii Table of Contents Page 1 Scope 1 2 References. 1 3 Definitions 1 3.1 Terms defined elsewhere 1 3.2 Terms defined in this Recom
19、mendation . 2 4 Abbreviations and acronyms 3 5 Conventions 3 6 Overview of SCNs 4 7 Configurations for SCN applications 6 7.1 Basic operations for SCN applications . 6 7.2 Decentralized configuration for SCN applications . 7 7.3 Transitional configurations for SCN applications 9 8 Service requiremen
20、ts of SCN applications . 12 8.1 Connectivity . 12 8.2 Mobility support . 12 8.3 Context awareness 13 8.4 Location awareness 13 8.5 Presence awareness 13 8.6 Traffic and load awareness . 14 8.7 Fault awareness 14 8.8 Routing . 14 8.9 Load balancing . 14 8.10 Scalability . 14 8.11 Fault tolerance 14 8
21、.12 Quality of service (QoS) . 14 8.13 Management . 15 8.14 Pledging of security of decisions 15 8.15 Open service environment (OSE) support 15 8.16 NGN service integration and delivery environment (NGN-SIDE) support . 16 8.17 Mass mobile user terminal support . 16 8.18 Emergency management applicat
22、ions 16 9 Security considerations . 16 Appendix I Use case of SCN for verification . 17 I.1 Errors in decisions 17 I.2 Verification . 17 I.3 Examples of verification applications 19 Appendix II Use case of SCN for emergency management . 20 iv Rec. ITU-T Y.2222 (04/2013) Page Bibliography. 22 Rec. IT
23、U-T Y.2222 (04/2013) 1 Recommendation ITU-T Y.2222 Sensor control networks and related applications in a next generation network environment 1 Scope This Recommendation provides an introduction to sensor control networks (SCNs) and related applications in a next generation network (NGN) environment.
24、 More specifically, this Recommendation provides: definitions of SCN and SCN related terms; overview of SCNs; description of possible configurations for SCN applications and the decision-making process for these configurations; service requirements of SCN applications for support in NGN environment.
25、 Moreover, two important use cases of SCNs are described in the appendices: SCNs for verification and SCNs for emergency management. Business models and charging issues are outside of the scope of this Recommendation. 2 References The following ITU-T Recommendations and other references contain prov
26、isions 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 Recommendation are therefore encouraged to investigate the possib
27、ility 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 give it, as a stand-alone document, the status of a Recommen
28、dation. ITU-T Y.2020 Recommendation ITU-T Y.2020 (2011), Open service environment functional architecture for next generation networks. ITU-T Y.2061 Recommendation ITU-T Y.2061 (2012), Requirements for the support of machine-oriented communication applications in the next generation network environm
29、ent. ITU-T Y.2234 Recommendation ITU-T Y.2234 (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. 3 Definitions 3.1 Terms defined elsewhere This
30、 Recommendation uses the following terms defined elsewhere: 3.1.1 actuator ITU-T Y.2061: A device performing physical actions caused by an input signal. NOTE 1 As examples, an actuator might act on the flow of a gas or liquid, on electricity distribution, or through a mechanical operation. Dimmers a
31、nd relays are examples of actuators. The decision to activate the actuator may come from an MOC application, a human or MOC devices and gateways. 2 Rec. ITU-T Y.2222 (04/2013) NOTE 2 (added by ITU-T Y.2222) There are three types of actuators: information actuators, which are intended to provide visu
32、al, audio, sensory interaction with the human user; gateway actuators, which are intended to forward control commands given by SCN to other networks; machine actuators, which are electromechanical devices intended for physical interaction with the external environment. 3.1.2 application b-ITU-T Y.10
33、1: A structured set of capabilities, which provide value-added functionality supported by one or more services. 3.1.3 context awareness b-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 c
34、oherent environment as a context. 3.1.4 machine oriented communication (MOC) ITU-T Y.2061: A form of data communication between two or more entities in which at least one entity does not necessarily require human interaction or intervention in the communication process. 3.1.5 next generation network
35、 (NGN) b-ITU-T Y.2001: A packet-based network able to provide telecommunication1 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. 3.1.6 NGN service integration and delivery environment (NGN-SIDE) ITU-T Y.2240: An open environment i
37、n NGN integrating resources from different domains and delivering integrated services to applications over NGN. NOTE These domains include, but are not limited to, telecommunication domain (e.g., fixed and mobile networks), Internet domain, broadcasting domain and content provider domain. 3.1.7 noma
38、dism b-ITU-T Q.1706: The ability of the user 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
39、 is that users shut down their service session before attaching to a different access point. 3.1.8 open service environment capabilities ITU-T Y.2234: Capabilities provided by open service environment to enable enhanced and flexible service creation and provisioning based on the use of standards int
40、erfaces. 3.1.9 seamless handover b-ITU-T Q.1706: It is a special case of mobility with service continuity since it preserves the ability to provide services without any impact on their service level agreements to a moving object during and after movement. 3.1.10 sensed data b-ITU-T F.744: Data sense
41、d by a sensor that is attached to a specific sensor node. 3.1.11 sensor b-ITU-T Y.2221: An electronic device that senses a physical condition or chemical compound and delivers an electronic signal proportional to the observed characteristic. 3.1.12 service b-ITU-T Y.101: A structure set of capabilit
42、ies intended to support applications. 3.2 Terms defined in this Recommendation This Recommendation defines the following terms: 3.2.1 aggregate value: A value calculated by combining the sensed data of several spatially distributed motes, reference values and other data and intended to represent the
43、 environmental conditions of a given geographical area. 3.2.2 central communication channel: A communication channel or a set of communication channels for transmitting data between SCN controllers and actuators without utilizing motes. Rec. ITU-T Y.2222 (04/2013) 3 3.2.3 gate: Intermediate device t
44、hat is used to provide a communication channel between an actuator and one or several nearby motes. 3.2.4 mote: A miniature computing device equipped with sensors and signal transceivers operating in a given radio band, and used for transmitting sensed data. NOTE 1 It is a kind of sensor node and it
45、 is characterized by a mandatory minimal level of computing resources. NOTE 2 Depending on application, a mote has one or more of the following capabilities: data manipulation, intelligent commutation and connectivity with actuators, retrieving data on the read-outs of near-site sensors. 3.2.5 mote
46、group: A set of motes connected to each other without making usage of external networks. 3.2.6 non-SCN-enabled actuator: An actuator that is not able to communicate with motes directly, and uses networks to communicate with motes. NOTE In this Recommendation, a non-SCN-enabled actuator uses NGN to c
47、ommunicate with motes. 3.2.7 reference value: A value calculated by combining the sensed data of one or several closely situated motes and intended to represent the environmental conditions of some specific location. 3.2.8 sensor control network (SCN): A sensor network consisting of motes which is i
48、ntended for controlling one or more actuators. 3.2.9 SCN application: An application that uses SCNs for controlling actuators. 3.2.10 SCN controller: A hardware/software system designed to collect and process data from motes and to transmit to actuators the necessary information for their control. 3
49、.2.11 SCN-enabled actuator: An actuator that is able to communicate with motes directly. 4 Abbreviations and acronyms This Recommendation uses the following abbreviations and acronyms: 3G Third Generation GPRS General Packet Radio Service MOC Machine Oriented Communication NGN Next Generation Network NGN-SIDE NGN Service Integration and Delivery Environment OSE Open Service Environment PDA Personal Digital Assistant QoS Quality of Service SCN Sensor Control Network Wi-Fi Wire
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