The phosphide-impregnated semiconductor chip is said to have carried out high-speed wireless transmission experiments in the 300Hz band, with a peak rate of 100Gbps. The technological breakthroughs are endless, and such chips are a welcome step forward in the development of communications technology. Some media have defined the chip as a 6G chip, and others believe it is a big breakthrough for Japan's 6G, surpassing China's 5G. However, the author thinks that this judgment is too early, we should have a sober, scientific understanding of 6G.
What is 6G? It should be said that today is not known. Countries still come up with their own ideas about what the 6G after 5G should look like, and these ideas need to be exchanged and refined in the communications industry around the world. As a result, national research institutions are now merely issuing white papers on the 6G, offering their own understanding. On this basis, the International Telecommunication Union will convene relevant meetings to present a vision for 6G. This vision, like the three 5G scenarios, should have scenarios and targets for those scenarios.
On the basis of its vision, the International Organization for Standardization (ISO) will promote the establishment of the 6G standards, and the relevant enterprises of each country will propose the standards for the establishment of the relevant standards around these projects. In the process of perfecting the standards, communication enterprises in various countries will develop products around these standards, carry out indoor experiments, and then carry out field experiments. Finally, a network was set up to provide services to the community.
At present, the global development of 6G is still in the stage of gradual formation of vision. In this sense, no technology is an internationally recognized 6G technology, and no technology is sure to become a 6G technology. The chip, developed by japanese companies, is strictly a telecommunications chip in the terahertz band. Although many experts have mentioned the terahertz band at the time of the discussion of the vision, it provides a large spectrum that provides the possibility for high-speed communications, it is hard to predict whether the terahertz band will be used. As in the discussion of the 5G standard, the world agreed that millimeter-waves were necessary to support higher bandwidth, and that countries had made millimeter-wave frequency planning for 5G. But because of the greater technical difficulty, the world's current 5G band is mainly Sub6, or below 6 GHz. More technical problems need to be addressed if millimeter waves are to be widely adopted.
6G is only the next generation of 5G technology, in addition to communication chips, the design of antennas that can be installed in terminals and base stations to support the terahertz band, which is a complex question. Therefore, the author thinks japan's telecommunications chip, which supports the terahertz band, is valuable, but it is still a long way from turning it into a real 6g technology.
Nowadays, China's 5G technology is in the forefront of the world in chip, communication system, terminal, application and so on, and the pace of 6G has not slowed down. At present, from the Ministry of Science and Technology to the Ministry of Industry and Information Technology to research institutions, there have been a number of departments to do related work. Many chinese telecommunication companies, such as Huawei, zte and xinke, are also doing the technology accumulation, and many forward-looking technologies (including terahertz technology) are research topics in universities such as the university of electronic science and technology, and the level is also in the forefront of the world. But since the world now has no definition of what a 6G vision is, it's not rushing to call a technology a \"6G technology \"that's scientific.
Communication technology is a common advance for all mankind, and it is a welcome breakthrough for any country. With the accumulation of 4G and 5G, it is believed that China will still be in the forefront of the world in the field of 6G. (The writer is Director of Information Consumption Alliance)