6G technology will explore the frequencies between 100 GHz and 1 THz. This is the frequency range that lies between radio waves and infrared light. These spectrums could support unimaginable wireless data transmission rates of up to one terabyte per second – with the tradeoff that such transmissions will only be effective for extremely short distances.
Scientists have already said 5G will be inadequate for some computing and communication needs. There is definitely a case to be made for applications that need huge amounts of data in real-time. For example, a 5G wireless signal at a few gigabits per second is not able to transmit enough data to support complex real-time manufacturing processes. There is not enough data being transmitted with a 5G network to support things like realistic 3D holograms and the future metaverse.
Scientists at the University of Oulu say they are hoping to have a lab demonstration of the ability to harness the higher spectrum bands by 2026, and they expect the world will start gelling on 6G standards around 2028. That all sounds reasonable and is in line with what they announced in 2019. One of the scientists at the University was quoted earlier this year saying that he hoped that 6G wouldn’t get overhyped as happened with both 4G and 5G.
I think it’s too late for that. You don’t need to do anything more than search for 6G on Google to find a different story – you’ll have to wade through a bunch of articles declaring we’ll have commercial 6G by 2030 before you even find any real information from those engaged in 6G research. There is even an online 6G magazine with news about everything 6G. These folks are already hyping that there will be a worldwide scramble as governments fight to be the first ones to master and integrate 6G – an upcoming 6G race.
I just shake my head when I see this – but it is nothing new. It seems every new technology these days spawns an industry of supposed gurus and prognosticators who try to monetize the potential for each new technology. The first technology I recall seeing this happen with was municipal WiFi in the 1990s. There were expensive seminars and even a paper monthly magazine touting the technology – which, by the way, barely worked and quickly fizzled. Since then, we’ve seen the guru industry pop up for every new technology like 5G, block-chain, AI, bitcoin, and now the metaverse and 6G. Most new cutting-edge technologies find their way into the economy but at a much slower pace than touted by the so-called early experts.
But before the imaginary introduction of 6G s by 2030, we will need to first integrate 5G into the world. Half of the cellphones in the world still connect using 3G. While 3G is being phased out in the U.S., it’s going to be a slower process elsewhere. While there are hundreds of Google links to articles that predict huge numbers of 5G customers this year – there aren’t any. At best, we’re currently at 4.1G or 4.2G – but the engineering reality is obviously never going to deter the marketers. We’ll probably see a fully compliant 5G cell site before the end of this decade, and it will be drastically different, and better, than what we’re calling 5G today. It’ll take another few years after that for real 5G technology to spread across U.S. urban areas. There will be a major discussion among cellular carriers about whether the 5G capabilities will make any sense in rural areas since the 5G technology is mostly aimed at solving overcrowded urban cellular networks.
Nobody is going to see a 6G cellphone in their lifetime, except perhaps as a gimmick. We’re going to need several generations of better batteries before any handheld device can process terabyte data without zapping the battery within minutes. That may not deter Verizon from showing a cellular speed test at 100 Gbps – but marketers will be marketers.
Believe it or not, there are already discussions about 7G – although nobody can define it. It seems that it will have something to do with AI and the Internet of Things. It’s a little fuzzy about how something after 6G will even be related to the evolution of cellular technology – but this won’t stop the gurus from making money off the gullible.