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Understanding 5G technology: the basics and beyond

The advent of 5G technology marks a revolutionary leap in mobile connectivity, bringing many improvements over its predecessors. But what exactly makes 5G so transformative?

5G, or “fifth generation,” represents the latest evolution in mobile networks. It succeeds in 4G and promises significantly enhanced performance. At its core, 5G offers three key benefits: faster speeds, lower latency, and greater connectivity. These improvements are made possible by utilizing high-frequency millimetre waves, which can transmit data at lightning speeds.

Unlike previous generations, 5G operates on three distinct frequency bands: low-band, mid-band, and high-band. Low-band 5G provides broad coverage with relatively slower speeds, while mid-band 5G balances speed and coverage. High-band 5G, on the other hand, delivers blazing-fast speeds but has a more limited range. This variety allows for versatile applications and ensures that 5G can meet different needs across various environments.

One of the standout features of 5G is its ability to handle a massive number of connected devices simultaneously. This capability is crucial for the burgeoning Internet of Things (IoT), where everything from smart home devices to autonomous vehicles relies on robust, reliable connectivity. 5G’s enhanced bandwidth and reduced latency mean that devices can communicate more effectively, making real-time applications, such as augmented and virtual reality, more viable and immersive.

Another significant advantage of 5G is its support for small-cell technology. These miniaturized cell towers are deployed more densely than traditional towers, which helps to bolster signal strength and network capacity. This infrastructure enables more stable and consistent connections, even in crowded urban areas.

To better understand how 5G works and impacts our daily lives, check out our explainer video below. It breaks down the complex technology behind 5G in an easy-to-follow format, perfect for anyone curious about the future of connectivity.

George Mavridis is a journalist currently conducting his doctoral research at the Department of Journalism and Mass Media at Aristotle University of Thessaloniki (AUTH). He holds a degree from the same department, as well as a Master’s degree in Media and Communication Studies from Malmö University, Sweden, and a second Master’s degree in Digital Humanities from Linnaeus University, Sweden. In 2024, he completed his third Master’s degree in Information and Communication Technologies: Law and Policy at AUTH. Since 2010, he has been professionally involved in journalism and communication, and in recent years, he has also turned to book writing.