5G vs. 4G: What are the differences?

Mobile technology has advanced by leaps and bounds in recent decades, taking us from the first mobile phones to the Internet of Things (IoT) era. In this context, the arrival of 5G marks a before and after in the history of wireless communications. But what makes 5G so special and how does it differ from 4G?

How does 5G work?

5G is the fifth generation wireless technology, designed to provide faster and more reliable connectivity. Unlike its predecessors, the 5G uses a wider frequency spectrum, This allows for higher bandwidth and thus significantly higher data transmission speeds. In addition, 5G network infrastructures are designed to support a higher density of connected devices, This is crucial for the development of the Internet of Things.

Some of the key aspects that explain how 5G works are detailed in more detail below:

• Frequency spectrum: 5G uses a wider range of frequencies compared to 4G. This includes low frequency bands (below 1 GHz), mid-frequency bands (1-6 GHz) and high frequency or millimetre wave bands (24 GHz and above). Each band has its advantages and challenges: low bands offer greater coverage and better signal penetration, while high bands offer higher capacity and faster speeds.
• Advanced antenna technology: 5G uses technologies such as massive MIMO (Multiple Input Multiple Output) and beamforming. Massive MIMO involves the use of a large number of antennas at a base station to improve network capacity and efficiency. Beamforming is a technique that directs the signal more precisely towards the user's device, improving signal quality and reducing interference.
• Densification networks: To take advantage of high-capacity millimetre wave frequencies, 5G requires a denser base station network. This means more antennas, placed closer together, to ensure adequate coverage, especially in densely populated urban areas.
• Flexible network architecture: 5G introduces a more flexible and efficient network architecture, using technologies such as network functions virtualisation (NFV) and software-defined networking (SDN). These technologies enable more dynamic and efficient management of network resources, better adapting to the changing needs of data traffic.
• Network segmentation (Network slicing): 5G enables the creation of multiple virtual networks (or «slices») over the same physical infrastructure. Each slice can be configured with specific features to meet different needs, such as low latency for critical applications or high speed for video streaming.
• Integration with the Internet of Things (IoT): 5G is designed to support a large number of connected devices, which is essential for the development of the Internet of Things. It can handle massive device connections with different requirements in terms of bandwidth, latency and mobility.
• Low latency and high reliability: 5G significantly reduces latency, enabling real-time applications such as online gaming, autonomous vehicles and telemedicine. It also offers higher reliability compared to previous generations of mobile technology.

What is the difference between 4G and 5G?

The differences between 4G and 5G are numerous and significant, impacting not only the speed and efficiency of mobile networks, but also the way they are used and the applications they enable. Here are some key differences:

Latency

Latency, or network response time, is one of the most significant improvements of 5G over 4G. While 4G has an average latency of around 50 milliseconds, 5G reduces this time to just 1 millisecond. This improvement is essential for applications that require real-time response, such as online gaming or autonomous driving.

Base stations

The 5G base stations are smaller and more efficient compared to 4G. This allows for denser and more flexible deployment, which is essential for covering densely populated urban areas and for providing uniform indoor coverage.

Frequencies

5G uses higher frequencies than 4G, allowing data to be transmitted at a higher rate than 4G. much higher speeds. However, these high-speed frequencies have a shorter range and are less effective at penetrating obstacles such as buildings, requiring a denser base station network.

Energy consumption

Despite offering higher speed and capacity, 5G is more efficient in terms of power consumption compared to 4G. This is due to the improvements in semiconductor technology and the most efficient algorithms used in 5G networks.

How do I know if my phone is 5G?

To determine whether your mobile phone supports 5G, you should check the technical specifications of the device. 5G handsets often have a specific mark or mention on their features indicating their compatibility with 5G mobile networks. In addition, it is important to make sure that your mobile operator offers 5G coverage in your area and that your data plan is compatible with this technology.

Conclusions

5G is not just an improvement in connection speed; it represents a fundamental change in the way we interact with technology. 

With its low latency and high speed, 5G opens the door to new possibilities in areas such as augmented reality, mobile phones, mobile phones and mobile phones. autonomous vehicles and the Internet of Things. 

As this technology continues to be deployed globally, it is essential that businesses and consumers understand its capabilities and prepare for the impact it will have on our lives and the global economy.

What you should remember

• 5G uses low-, medium- and high-frequency bands, including millimetre wave bands, to offer higher capacity and faster speeds.
• It has a larger number of base stations, placed closer together, to support high-capacity frequencies and ensure adequate coverage.
• It stands out for its use of NFV and SDN for a more dynamic and efficient management of network resources.
• It has the capability to handle massive connections of devices with different requirements, essential for IoT development.
• It is more energy efficient thanks to technological improvements and smarter grid management.