“The beginning of a revolution”, or how we have gone from using waves to tornadoes to send 1 TB in a second on 6G networks

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We are still getting used to 5G networks, but the development of future 6G networks it’s already running. This is what has been shown by a group of Chinese researchers, who have achieved send 1 TB of data in a second 1 km away.

This record has demonstrated the enormous bandwidth that is possible with this type of connection, which allows an incredible leap: From the 20 Gbps that can be achieved in 5G networks, we went to 1 Tbps in 6Gbut it is that we also gained in latency: from 1 ms in 5G we went to 0.1 ms in 6G.

A new dimension (really)

The experiment was launched on the Beijing Olympics campus a month ago. As Professor Zhang Chao, from the School of Aerospace Engineering at Tsinghua University in Beijing, explained, with him it was possible stream more than 10,000 HD videos simultaneously.

The result, Chao noted, showed how China is “leading global research into technologies with key potential for 6G.” In this experiment, the researchers used so-called millimeter vortex wavesa type of extremely high frequency emission.

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Today’s mobile devices use electromagnetic waves that spread like ripples in a pond to communicate. The information is represented by those “up” and “down” peaks of the waves, which from a mathematical point of view they only have two dimensions.

Unlike those waves, in these 6G transmissions the electromagnetic vortex waves have a three-dimensional shape: they look more like a tornado.

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Thanks to this format you can encode additional information in the vortex or orbital angular momentum (OAM) of those waves. That is the key to dramatically increasing communication bandwidth. These types of waves were already described by the British physicist John Henry Poynting in 1909, but until now it had not been possible to emit them efficiently.

There are drawbacks with these waves: their size increases with distance, causing that weakening signal to complicate high-speed data transmission over long distances. To solve it, the Chinese research team used a very special transmitter to generate a smaller vortex which made the waves spin in three different ways to store more information. The receiver designed to collect that information is capable of receiving that data and decoding it in an instant.

Some describe this as “the beginning of a revolution” in communications technology. The Chinese government researcher making the remarks explained that “the most surprising thing is not the speed, but the introduction of a new physical dimensionwhich can lead to a whole new world of limitless possibilities.”

The experiment is, of course, a promise for the future of 6G communication network technology, but that future – in which Huawei is very involved – will take time to arrive. Commercial deployment of these networks is expected in 2030 —perhaps earlier, according to Samsung—although in military applications that deployment could come sooner. In fact Professor Zhang’s team made use of the W frequency band which is used in military broadcasting.

China is making remarkable progress in the development of 6G networks: according to a September 2021 study Elaborated by Cyber ​​Creative Institute, more than 40% of patents in this field come from this country. Following is 35% from the US, 10% from Japan, 9% from Europe and 4% from South Korea.

Via | SCMP

We are still getting used to 5G networks, but the development of future 6G networks it’s already running. This is…

We are still getting used to 5G networks, but the development of future 6G networks it’s already running. This is…

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