5G

5G is the natural progression of mobile technology and telecommunications. The fifth generation of mobile networks, 5G, has improved speed and latency for mobile devices and provided the world with better connectivity and reliability.

What is 5G?

5G definition: 5G is the fifth generation of cellular network technology that has been the standard for mobile telecommunications networks since 2019. 5G lets phones and other devices connect to the internet much faster, with less delay and more reliably, even when lots of devices are online at the same time.

5G runs on the same radio frequencies as its predecessors, 3G and 4G. However, improvements in how 5G operates deliver noticeable gains over prior generations, including faster download speeds.

This new generation has transformed the way people communicate, with mobile phone users able to interact more easily through social media and other channels thanks to 5G.

Roaming capability was a top priority for this next generation, helping mobile users stay connected more often, wherever they are.

How does 5G work?

As with previous generations, 5G transmits data via radio waves. Cellular technology divides service areas into smaller geographic sections, known as cells.

These cells provide a boundary within which 5G devices can receive internet and a stable phone network via these radio waves. This newer generation also enables more devices to be connected than before due to the wider bandwidth of 5G, which supports faster speeds and improved quality of service for internet applications. This flexibility also enables segmenting the network itself, laying the foundation for technologies like network slicing, which allow different devices and use cases to operate on tailored virtual networks within the same infrastructure.

Network slicing

Network slicing is the ability to create multiple virtual networks on a single physical network infrastructure, with each slice tailored to specific performance needs such as speed, latency, reliability or security. Enabled primarily by 5G, this technology allows operators to dynamically allocate network resources so that different devices and applications can operate without competing with one another.

For example, a network slice can be dedicated to mission-critical applications like autonomous vehicles or industrial automation, while another slice serves consumer mobile users by streaming video or browsing the web. By separating traffic in this way, 5G network slicing improves overall reliability, ensures consistent performance and supports a wide range of use cases across smartphones, IoT devices and enterprise systems—all on the same underlying network.

What is the history of 5G & mobile internet?

The evolution of 5G is part of a broader history of mobile networks, hence its name 5G referencing the fifth generation of mobile networks. Briefly, the history of mobile networks dates back to the 1980s, when the first generation was researched and developed.

Since then, there have been a number of iterations, leading up to 5G.

• 1979–1984, 1G: The first generation of mobile networks launched commercially in 1979 in Japan (NTT). It supported analog voice calls only and was widely used throughout the 1980s.
• 1991, 2G: Digital mobile networks launched with GSM in Finland. This generation introduced clearer voice calls along with SMS text messaging.
• 2001, 3G: Third-generation networks enabled mobile internet access, making basic app usage, multimedia messaging and video calling possible.
• 2010, 4G / LTE: Fourth-generation networks delivered much faster data speeds, supporting smartphone ecosystems built around streaming, social media and cloud-based apps.
• 2012, 5G research begins: Early research into 5G started globally, with research centers funded to explore higher speeds, lower latency and new network architectures.
• 2015, early 5G results: Mobile World Congress showcased early 5G research, demonstrating how the technology could significantly improve upon 4G capabilities.
• 2019, first commercial 5G launches: 5G was launched commercially, marking a new generation of mobile networks focused on speed, capacity and reduced latency.

What are the key types of 5G?

As 5G is already a type of mobile network, there aren’t necessarily different types of 5G. However, there are different bands within 5G that offer different capabilities.

Low-band 5G is the weakest of the bands within 5G, as it provides the slowest speeds of 5G and is only slightly faster than what 4G offers. Low-band 5G does, however, provide blanket coverage, enabling a large number of devices to connect to the network.

Mid-band 5G is considered a perfect band as it can carry a large amount of data while covering large distances, providing a well-balanced network for multiple users.

High-band 5G is focused on providing the fastest speeds possible, but over shorter distances compared to the other bands. This band is used to offer high speeds to areas where network traffic can be exceptionally high.

There is also advanced 5G, which is looked at as the natural progression of 5G. The hope with advanced 5G is to provide performance improvements and efficiency.

How is 5G used?

With a considerable amount of time since 5G was launched commercially, there are plenty of use cases and examples of how 5G has improved certain aspects of society and advanced the efficiency of certain organizations.

Healthcare is a major beneficiary of the technology of 5G. It has helped propel the capabilities of what is possible in healthcare, such as advancements in remote surgery, by reducing data-sharing latency compared to previous generations. With seamless 5G connectivity, monitoring patients via the internet of things (IoT)-connected devices enables healthcare professionals to provide better care without constant face-to-face contact.

Another major benefit of the improvements 5G technology has provided is improved connectivity for more communities. Emergency responders in less-developed communities are benefiting from the improved connectivity and lower latency that 5G provides.

How does 5G relate to memory and storage?

5G’s high speeds, low latency and ability to support massive numbers of connected devices dramatically increase how much data must be processed and stored. Real-time applications such as high-resolution streaming, IoT and edge computing depend on fast, reliable memory for immediate data access and high-capacity storage to handle growing data volumes without bottlenecks.

For Micron, 5G represents a major driver of innovation across memory and storage solutions. From smartphones and edge devices to base stations and data centers, Micron memory and storage technologies help ensure that 5G networks deliver on their promise of speed, reliability and scalability. As use cases like autonomous systems, smart infrastructure and AI-enabled applications expand, memory and storage play a critical role in enabling efficient data handling—turning 5G connectivity into actionable performance and real-world outcomes. To learn more, contact Micron’s Sales Support team.