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3.4 Internet of Things Gateway

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The Internet of Things (IoT) generates additional messaging on telecoms networks, and requires gateways to aggregate the messages and ensure low latency and security. Because of the nature of some of the devices being connected, a real time capability is required and a grouping of sensors and devices is needed for efficient service.

IoT devices are often resource constrained in terms of processor and memory capacity. There is a need to aggregate various IoT device messages connected through the mobile network close to the devices. This also provides an analytics processing capability and a low latency response time.

Various devices are connected over different forms of connectivity, such as 3G, LTE, Wi-Fi or other radio technologies. In general the messages are small, encrypted and come in different forms of protocols. There is a need for a low latency aggregation point to manage the various protocols, distribution of messages and for the processing of analytics. The MEC server provides the capability to resolve these challenges.

Mobile Edge Computing can be used to connect and control devices remotely, analyse and provide real time provisioning and analytics. MEC enables the aggregation and distribution of IoT services into the highly distributed mobile base station environment, and enable applications to respond in real-time. This can reduce the round trip time of data and enable a layer of abstraction from both the core network and applications in the cloud. IoT applications can run on MEC servers which are deployed at the LTE base station site to provide this functionality.