Vodafone Germany has launched four new 5G Supercore data centers. It was announced by the company on April 17, 2019. Furthermore, existing data centers will be upgraded.
Small data processing centers for manual computing on the 5G should have a little more space than the standard laptop. "With the computer at the edge, data centers move directly to the site where data is being generated – an industrial hall, clinic or street corner – so the data does not have to travel long distances across Germany to handle it happening at the edge of the network" ", reports the company. Data exchange should work in real time. This is necessary to achieve a low latency time of 5G.
The cloud server has to be on the edge
Achieving extremely short latencies requires not only spatial proximity and high frequency, but also changing the frame structure, ie adapting the data packet to radio resources to be transmitted. Thomas Haustein, Head of Wireless Communication and Networking at the Fraunhofer Telecommunications Institute, Heinrich Hertz Institute (HHI), said in December 2018: "This is the so-called cloud cloud solution, so a cloud that is not centralized somewhere or many hundreds of miles away." The cloud server has to wander to the edge – the English "edge" – the radio network so that at best it can directly perform calculations at the base station ", You also need optimization on all layers of the protocol: "Then, if you spend about 200 microseconds on the air interface, you can reuse 300 microseconds in the protocol set, and you still have half a milliseconds at the application level to reach milliseconds." There is a short latency.
If 5G transmitters and receivers are close enough, latencies below one millisecond can be reached today, as Huawei showed during IMT-2020 technology tests. "Using all of the configuration parameters, we managed to push the latency to 0.33 milliseconds for one direction in the air"Michael Lemke describes the demonstrator." "That is, 330 microseconds is the fastest time ever, which is feasible to this extent, but we have to be clear, we did it in laboratory conditions and managed to configure ideal conditions: the shortest left-right and local data processing." In addition, short latency was only possible with the use of higher frequencies mentioned in 5G.