The very possibility of using the Internet from a cell phone is not new. Even in 2000 it already existed in a number of models. The connection speed was enough to download ringtones, wallpapers and even games from the web, but the download took too long. Modern 4G networks are literally more than a thousand times faster than at that time. But even these networks are not able to cope with the need for future applications in data traffic. Therefore, the development of new standards for cellular communications, and 5G-networks are close to their debut.
Users would be interested to know about what opportunities will bring with them a network of a new generation. In the 1980s, when a list of funny accessories was made, cell phones were analog devices. They were intended for voice calls and were not able to transmit digital information, even if it was a text message.
Prehistory
Possibilities of text transmission appeared in cell phones in the early 1990s with the advent of second-generation cellular networks. The 2G era brought a variety of data services to cellular phones - e-mail, multimedia messages, as well as the ability to download images and ringtones from the Internet.
Launched in the early 2000s, 3G networks accelerated data exchange. They already allowed video calls, which previously users could only see in the fantastic films. But the spread of support for these networks has been slow. Even released in 2007, the first iPhone was a 2G-device.
But it was with the advent of the iPhone that the ascent of smartphones began, a significant expansion of the audience of their users and the development of ever faster cellular networks. But the speed was not sufficient for new needs - the YouTube video was buffered. At the end of the 2000s a fourth generation appeared, which provided an excellent data transfer rate.
How fast will the 5G network be and why do they need users?
With the real speed for modern 4G LTE networks - between 10 and 30 megabits per second - an HD movie can be downloaded in minutes. It's fast enough, but when it comes to cellular networks, the data transfer rate is not the only factor that matters.
In the near future, not only smartphones will become devices connected to the Internet in 24/7 mode. To them can be added self-propelled cars, devices "Internet of things", smart portable devices and infrastructure solutions. All this will increase the need for data transmission through cellular networks. Therefore, a new generation of networks is being developed with the idea that its capabilities will suffice with a margin. In other words, 5G-networks are likely to be able to service the increased number of connected devices.
At the same time, 5G-networks are created flexible, corresponding to the scenario of their use. Some applications may require ultra-fast data exchange, while others will require a reliable, rock-like connection with minimal latency. Regardless of the case, the 5G network must be able to provide the best possible solution.
The current data transfer rate of 5G will vary depending on the application, but the difference between tens of megabits per second and tens of gigabits per second will in any case be palpable. Surprised? By today's standards, of course, surprises. This additional bandwidth will allow you to work with services that modern 4G networks can not handle. You can only imagine the streaming of video with a resolution of 4K, 8K, and even 360-degree review, real-time interaction with augmented and virtual reality and, of course, powerful multiplayer online games that work without "hangs" at all, and much other.
When can 5G networks be launched?
5G-networks are still very far from readiness for commercial use. New network technologies have yet to be standardized. You also need to determine the wireless range in which they will work. You also need to determine which hardware will be developed for them.
But if everything is implemented in accordance with the schedule, the 5G-network will work in South Korea during the 2018 Winter Olympics. This is a network, the emergence of which will precede the standardization of 5G. This start will become a test of the new technology in real conditions.
The appearance of the already standardized commercial 5G network is expected in Japan in 2020 to the Summer Olympic Games. By that time, 5G networks will also start operating in South Korea and China.
In the US, all major operators - Verizon, AT & T, T-Mobile and Sprint - have begun testing the capabilities of fifth-generation wireless technologies. But 5G-networks, of course, will not be available until 2020.
5G networks are beautiful, are not they? What are the obstacles?
But there are a number of obstacles to the launch of next-generation networks. First of all, there are possible problems with the coating, which were typical for the transition to 4G. Complicating the problem is the fact that each 5G tower covers a smaller area than the 4G tower, so the likelihood that the device will be out of coverage is increasing.
Of course, 5G is theoretically faster than 4G, but real performance is a completely different story. In other words, 5G networks may not even be nearly as fast as today's test samples. For example, the operator T-Mobile recently during testing of the 5G-network it was possible to reach download speeds of 12 gigabits per second.
This is 1200 times faster than the average US network speed 4G LTE. But during this test we used equipment that will never be used by the average consumer. In reality, it is expected that the speed of 5G-networks will be about 10 times faster than the current 4G-networks. And this is a huge progress.
In the meantime, more and more users are starting to use 4G networks. And an increasing number of devices are characterized by appropriate support. And when 5G-networks finally become a reality, two generations of networks will coexist for a while.
Based on phonearena.com
The article is based on materials .
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