Take a look at the top corner of the phone screen, you will most likely see 4G. This means that you are using 4G technology with high speed. If you go to suburbs or rural areas where the cellular network coverage is less, the network character will change to 3G, with the speed of your mobile Internet connection being slower and less stable.

Now, the mobile network is about to be transferred to a new generation, with faster connection speed, large coverage and stability, which is 5G network technology.

The "G" stands for Generation (generation). 5G is the 5th generation of cellular technology (or 5th generation of cellular technology), the next generation of 4th generation (4G) cellular technology, designed to significantly improve the mobile internet connectivity, mobile network coverage and latency.

"This new generation of networks will have the same impact as the insulation, silicon and steam energy that has been generated in previous industrial revolutions," said Borje Ekholm, CEO and President of telecom equipment maker. reported by Ericsson.

What makes 5G network different from previous generations of networks is that it operates on higher radio frequencies. While all radio waves travel at the same rate, the wavelength of a particular frequency affects its data rate directly. As a general rule of thumb, the higher the frequency, the shorter the wavelength and the more bandwidth available to send the information.

The highest frequency the 4G network uses is 2.6GHz. Meanwhile, 5G networks are transmitted with frequencies from 3.5GHz to 6GHz. This is why 5G can provide users with download speeds of up to 10Gb / s, 10 times what 4G can achieve. This will allow you to download a high-quality movie wirelessly in seconds, not minutes like before.

Of course, high-speed mobile Internet not only has download speeds, but also lags. It is communication latency over the network, the time lag between sending commands, for example clicking a button on a web page and waiting for a web page to respond, the less time it takes to respond, the lower the latency. While 4G has a maximum latency of 50 milliseconds, 5G has reduced it to 4 milliseconds, giving you virtually instant connectivity all the time.

Over the next few years, 5G could be even faster, as internet providers plan to tap into frequencies in excess of 6GHz. Part of the spectrum from 30GHz to 300GHz is called the millimeter band for the extremely short wavelengths, only 1-10mm wide. These so-called "millimeter waves" have been used in radio astronomy and radar guns in the past. Once we start using the ultra-fast bandwidth of millimeter waves, 5G will no longer feel the lag and will give you a lot of benefits.

However, higher frequencies come at a cost. Short wavelengths cannot travel long distances and are easily interrupted. In particular, millimeter waves need a straight line to the device to which they send data and can be blocked by walls or even rain. To overcome this, it is necessary to build more antennas so that the devices are always close enough to each other, enough to receive the signal. However, the higher frequencies only need small antennas, so instead of using the tall telephone towers in the city, the transmitters are integrated into electric poles and traffic lights. .

Today, mobile networks are not only for phone calls, but we have all kinds of devices that need mobile broadband networks: smartphones and tablets connected to the Internet so people can work while out. , smart watches, surveillance cameras also need to be connected to the Internet ... The connection trend will definitely develop in the coming time, requiring mobile network technology to be improved to meet that demand. That is the highest benefit that 5G network will fulfill for humans.

Not only does it have faster connection speeds, large coverage and smaller latency, but 5G networks also support a larger number of connected devices. If 4G can connect 100,000 devices within 1 square kilometer, the 5G network generation can handle 1 million connected devices in 1 square kilometer.

With the trend of all devices connected to the Internet, the rollout of 5G networks cannot be delayed

The features of the 5G network will help meet the trend of "Internet for Things" in the coming years. Thousands of objects every day, from home to work or street corner are attached to sensors to connect and share data. 5G network with the advantages of fast speed, wide bandwidth, large coverage ... will help meet this.

5G connectivity technology will lead to leaps and bounds for products, businesses and even industries, from self-driving cars to artificial intelligence…. Experts say that 5G could drive an additional $ 12 trillion in annual revenue by 2035. So it’s not surprising that countries and companies are racing to roll out 5G networks.

Currently, South Korea is the first country to roll out 5G nationwide, while both China and the US aim to achieve the same thing by the end of 2020. As many as 25 cities in the UK will provide 5G by the end of 2020. By the end of this year, Switzerland is the leading country in Europe when it comes to 5G network deployment in 227 regions.

5G will initially be aimed at businesses, but this will eventually benefit all of us as well. Faster speeds and lower latency for business mean faster response and better service for consumers. The future of 5G is coming faster than we expected.