Feature: Communications
Where next, after 2G and 3G are
phased out? By Paul Bullock, Group Head of Mobile Virtual Network Operations, Wireless Logic
T
he closure of 2G and 3G networks around the globe is imminent. In fact, in some regions and for some mobile network
operators (MNOs), it has happened already. This presents a challenge to device manufacturers of machine-to- machine and Internet of Things (IoT) installations, since many devices still operate on 2G and 3G networks. There are several alternatives to 2G/3G that companies can adopt for IoT continuity. Each has its own merits, so organisations must consider factors such as the markets and applications these devices will serve, the power they will require, and the impact the change will have on manufacturing processes.
2G/3G sunsetting 2G, 3G and 4G have co-existed, providing cellular connectivity for consumers and businesses alike. To free up spectrum for 4G and 5G, 2G and 3G are now being phased out, a process referred to as “sunsetting”. Sunsetting is happening at different
times across different MNOs and regions. In the UK, all public 2G and 3G networks will be switched off by 2033, although the impact will be felt much sooner. Generally, 3G is going first across
regions with BT announcing that customers across its brands will be phased off those services by 2023.
5G and the IoT 5G is the latest communications technology, promising applications that will make cities smart, connect cars and advance healthcare.
5G offers enhanced mobile broadband,
high-speed connectivity, where many applications, including security and virtual reality, can stream video with very little latency. However, many IoT applications have low usage and require only low power, but must have high availability – and, to date, 2G and 3G have been the best fit. IoT deployments supporting building management systems, industrial metering and fleet management are cases in point; they have low data throughput, use low power to keep devices in the field for many years but, crucially, have generally large, multi-site deployments.
Replacing 2G/3G Companies weighing their 2G/3G replacement options must choose a network technology most suited to their
www.electronicsworld.co.uk November 2022 17
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