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What is 6G

The 6G is the replacement to 5G cellular technology, with higher features like higher frequencies, higher capacity and much lower latency.

And many experts expect the sixth generation network to achieve significant technological development in the coming years.

Advantages of 6G over 5G

6G is expected to support 1 terabyte per second (Tbps) speeds. This level of capacity and latency will be unprecedented and will extend the performance of 5G applications along with expanding the scope of capabilities in support of increasingly new and innovative applications across the realms of wireless cognition, sensing and imaging. 6G's higher frequencies will enable much faster sampling rates in addition to providing significantly better throughput. The combination of sub-mmWave (e.g. wavelengths smaller than one millimeter) and the use of frequency selectivity to determine relative electromagnetic absorption rates is expected to lead to potentially significant advances in wireless sensing solutions.

Additionally, whereas the addition of mobile edge computing (MEC) is a point of consideration as an addition to 5G networks, MEC will be built into all 6G networks. Edge and core computing will become much more seamlessly integrated as part of a combined communications/computation infrastructure framework by the time 6G networks are deployed. This will provide many potential advantages as 6G technology becomes operational, including improved access to artificial intelligence (AI) capabilities.
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When is 6G coming?

“It’s a little too early to talk about 6G.”

Not our words, but the words of Ericsson’s Chief Technology Officer (CTO) Erik Ekudden during MWVC 2019 Shanghai in July 2019. We’ll say it again, it’s all about 5G at the moment. However, in his interview with Mobile World Live Ekudden did add that it’s never too early to start researching the next evolution of the mobile industry.

But if the research is only just starting, when will 6G launch? Ekudden continued that it would be about a decade before 6G comes along, a prediction which fits in with both Huawei founder Ren Zhengfei, who told CNBC in September 2019 that 6G was still in an early phase and at least ten years away, and Japan’s NTTDoCoMo. In NTTDoCoMo’s own white paper on 6G, published in January 2020, NTTDoCoMo illustrated how mobile connection technology has evolved on a relatively steady basis, with 3G coming in the early 2000s, 4G in 2010, and 5G in 2020. It posits that it’s reasonable to expect 6G in 2030.
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Do we even need 6G?

More than ever before, the sixth generation of cellular wireless communications will integrate a set of previously disparate technologies, including deep learning and big data analytics. The introduction of 5G paves the way for much of this convergence.

The need to deploy edge computing to ensure overall throughput and low latency for ultra-reliable, low latency communications solutions is an important driver for 6G, as is the need to support machine-to-machine communication in the internet of things (IoT). Furthermore, a strong relationship has been identified between future 6G solutions and high-performance computing (HPC). While some of the IoT device data will be handled by edge computing resources, much of it will require processing by more centralized HPC resources.

Who is working on it?

The race to 6G will draw the attention of many industry constituents, such as major test and measurement vendor Keysight Technologies who has also indicated a commitment to its development. This may very well make the race to reach 5G supremacy look minor compared to the wait to see which countries can dominate the 6G technology market and its related applications, services and solutions.

• The University of Oulu in Finland is committed to a 6G research initiative referred to as 6Genesis. The project will be conducted for the next eight years and will develop a vision for 2037.
• South Korea’s Electronics and Telecommunications Research Institute is conducting research on Terahertz band for 6G and envisions making it 100 times faster than 4G LTE networks and 5 times faster than 5G networks.
• The Ministry of Industry and Information Technology (MIIT) in China is directly investing and monitoring the research and development process.
• The United States is planning to open up 6G frequency for R&D purposes pending approval from the Federal Communications Commission (FCC) for frequencies over 95 gigahertz (GHz) to 3 THz.
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