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1                                                    Applications


                    NOTE 3 – Technologies used for interaction between data-capturing devices and data-carrying devices or data
                    carriers include radio frequency, infrared, optical and galvanic driving.
            –       Sensing and actuating device: A sensing and actuating device may detect or measure information
                    related to the surrounding environment and convert it into digital electronic signals. It may also
                    convert digital electronic signals from the information networks into operations. Generally, sensing
                    and actuating devices form local networks communicate with each other using wired or wireless
                    communication technologies and use gateways to connect to the communication networks.
            –       General device: A general device has embedded processing and communication capabilities and
                    may communicate with the communication networks via wired or wireless technologies. General
                    devices include equipment and appliances for different IoT application domains, such as industrial
                    machines, home electrical appliances and smart phones.


            7       Fundamental characteristics and high-level requirements of the IoT

            7.1     Fundamental characteristics
            The fundamental characteristics of the IoT are as follows:
            –       Interconnectivity:  With  regard  to  the  IoT,  anything  can  be  interconnected  with  the  global
                    information and communication infrastructure.
            –       Things-related services: The IoT is capable of providing thing-related services within the constraints
                    of things, such as privacy protection and semantic consistency between physical things and their
                    associated virtual things. In order to provide thing-related services within the constraints of things,
                    both the technologies in physical world and information world will change.
            –       Heterogeneity: The devices in the IoT are heterogeneous as based on different hardware platforms
                    and networks. They can interact with other devices or service platforms through different networks.
            –       Dynamic changes: The state of devices change dynamically, e.g., sleeping and waking up, connected
                    and/or disconnected as well as the context of devices including location and speed. Moreover, the
                    number of devices can change dynamically.
            –       Enormous scale: The number of devices that need to be managed and that communicate with each
                    other  will  be  at  least  an  order  of  magnitude  larger  than  the  devices  connected  to  the  current
                    Internet. The ratio of communication triggered by devices as compared to communication triggered
                    by humans will noticeably shift towards device-triggered communication. Even more critical will be
                    the  management  of  the  data  generated  and  their  interpretation  for  application  purposes.  This
                    relates to semantics of data, as well as efficient data handling.

            7.2     High-level requirements

            The following provide high-level requirements which are relevant for the IoT:
            –       Identification-based connectivity: The IoT needs to support that the connectivity between a thing
                    and  the  IoT  is  established  based  on  the  thing's  identifier.  Also,  this  includes  that  possibly
                    heterogeneous identifiers of the different things are processed in a unified way.
            –       Interoperability:  Interoperability  needs  to  be  ensured  among  heterogeneous  and  distributed
                    systems for provision and consumption of a variety of information and services.
            –       Autonomic networking: Autonomic networking (including self-management, self-configuring, self-
                    healing, self-optimizing and self-protecting techniques and/or mechanisms) needs to be supported
                    in the networking control functions of the IoT, in order to adapt to different application domains,
                    different communication environments and large numbers and types of devices.

            –       Autonomic  services  provisioning:  The  services  need  to  be  able  to  be  provided  by  capturing,
                    communicating and processing automatically the data of things based on the rules configured by
                    operators  or  customized  by  subscribers.  Autonomic  services  may  depend  on  the  techniques  of
                    automatic data fusion and data mining.



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