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Unleashing the potential of the Internet of Things                         4

            Recommendation ITU-T Y.4251/F.747.1


                                 Capabilities of ubiquitous sensor networks for
                           supporting the requirements of smart metering services



            1       Scope
            The  main  purpose  of  this  Recommendation  is  to  identify  the  capabilities  of  ubiquitous  sensor
            networks  (USNs)  which  support  the  requirements  of  smart  metering  services.  The  scope  of  this
            Recommendation covers the following:
            –       overview of smart metering
            –       smart metering use case scenarios
            –       requirements of smart metering services
            –       USN capabilities for supporting the requirements of smart metering services.


            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 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 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 F.744]       Recommendation ITU-T F.744 (2009), Service description and requirements
                                for ubiquitous sensor network middleware.
            [ITU-T Y.2221]      Recommendation ITU-T Y.2221 (2010), Requirements for support of
                                ubiquitous sensor network (USN) applications and services in the NGN
                                environment.


            3       Definitions


            3.1     Terms defined elsewhere
            This Recommendation uses the following terms defined elsewhere:

            3.1.1   sensor [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.

            3.1.2   sensor network [ITU-T Y.2221]: A network comprised of inter-connected sensor nodes
            exchanging sensed data by wired or wireless communication.
            3.1.3   sensor  node  [ITU-T  Y.2221]:  A  device  consisting  of  sensor(s)  and  optional  actuator(s)
            with the capabilities of sensed data processing and networking.
            3.1.4   ubiquitous  sensor  network  (USN)  [ITU-T  Y.2221]:  A  conceptual  network  built  over
            existing physical  networks which makes  use of  sensed data and provides knowledge services to
            anyone,  anywhere  and  at  any  time,  and  where  the  information  is  generated  by  using  context
            awareness.

            3.1.5   USN gateway [ITU-T Y.2221]: A node which interconnects sensor networks with other
            networks.




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