5G Network in Cologne. Speed ​​above 500 Mbit and response of a few milliseconds


Specifically, the test consists of placing an antenna with 64 × 64 Massive MIMO technology at the top of the building near Futurum. O2 uses the 3.5 GHz band with a width of 60 MHz, which is borrowed for one month from the Czech Telecom Office.

In a 5G phone from Chinese manufacturer Oppo, technicians measured a speed of 516 Mbit per second and a latency of about 10 ms on Thursday. They also showed a response of about 8 ms in the measurement history.

"We hope to get better answers at the final launch of 5G networks," commented Jan Hruška, O2's chief technical officer, commenting on the results.

This is supposed to provide Mobile Edge Computing technologies, or the deployment of the same station with additional servers that will not have to go through the core of the network (located in Prague), which will save an order of magnitude more milliseconds depending on the location of the site. metropolis.

In current LTE networks, tens of Mbit per second and latency of about 15 milliseconds can be measured. Usually, however, the responses are larger.

It is the latency that is important for 5G networks. "It's all about where a specialist remotely controls something. Usually, distant surgeries that a specialist can perform thousands of miles away from the patient are reported, "says Pear's chief technical officer, an example in which it is logically necessary that the response be as short as possible.

As another example, it generally refers to the use of the power of cloud computing in the hardware connected to the network. Already seen in video games and virtual reality. This was shown by O2 directly in Cologne, when it was possible to experience the expanded reality at the booth through smart HoloLens glasses and shared virtual reality games.

In either case, the applications were not run directly on the hardware, nor were the glasses attached to any other "iron". They worked seamlessly and "uncut" from Sweden's Ericsson Data Center.

For example, industry and robotics are looking forward to this. For the robots themselves, it will be possible to concentrate fully on the design and materials suited to their operation, without the hardware having to compromise because of the location and the involvement of the "brain" of the machine. It will run remotely in the cloud.

Both the radio and the main technology of a separate test network were provided by Ericsson. O2 says it wants to test devices from different vendors, so it does not only work with Ericsson on 5G networks.

The fifth-generation network was tested by Vodafone in Karlovy Vary last summer. It then measured speeds of about 1.8 Gbit, or 1800 Mbit per second. At the same time, thanks to the LTE four-band connection in Cologne, O2 has launched a "nearly 5G network" or a 4.5G network. It also shows speeds in hundreds of megabits per second, but the latency is at 4G.

Although this 4.5G network can be used by the common Colony, if it has a compatible phone or other device, the current 5G network test is for O2 only, no one outside is required to join the network.


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