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Unleashing the potential of the Internet of Things 3

network operator/service provider. Rather, it means the vendor may optionally provide the feature
and still claim conformance with the specification.

6 Introduction to gateways for IoT applications
In IoT applications, information in either the physical or information world is collected by devices
and then sent to the IoT applications through communication networks. Some devices cannot
connect to the communication networks directly. The gateways support the interconnection of such
devices with the communication networks.

Figure 1 shows the typical deployment scenario of gateways for IoT applications.

IoT applications

Communication networks

Gateways

Devices
Y.2067(14)_F01

Figure 1 – Typical deployment scenario of gateways for IoT applications

As shown in Figure 1, different kinds of devices can connect to the communication networks
through one or multiple gateways. The connectivity between devices and gateway(s) can be based
on different kinds of wired or wireless technologies, such as a controller area network (CAN) bus,
ZigBee, Bluetooth or Wi-Fi.
The communication networks can be realized via existing networks, such as conventional
TCP/IP-based networks and/or evolving networks, such as next generation networks (NGN)
[b-ITU-T Y.2001]. A gateway that connects to these networks should support the appropriate
communication technologies.

The IoT applications implement application logic according to the application requirements. The
applications can be based on proprietary application platforms, but can also be built upon common
service/application support platforms providing generic enabling capabilities, such as
authentication, device management, charging and accounting [ITU-T Y.2060].

The gateway connects to the IoT applications through the communication networks.

Rec. ITU-T Y.4101/Y.2067 (06/2014) 101