Recently, Su Xin, head of imt-2020 (5g) wireless technology working group of the Ministry of industry and information technology, revealed that 6G concept research will be launched this year. This means that China and the world have started 6G research simultaneously. In addition to China, the United States, Russia, the European Union and other countries and regions are also carrying out relevant conceptual design and R & D work. According to the assumption, the theoretical download speed of 6G technology can reach 1TB / s in the future, and it is expected to officially start research and development by 2020, and put into commercial use by 2030.
According to the change time of mobile communication, it will take ten years for a generation of technology to be developed and commercialized. Therefore, when 5g is about to be put into commercial use, it is time to start preparing 6G R & D.
As for whether 6G research is too early, Wan Yi, deputy director of Institute of technology and standards of China Academy of information and communication, said in an interview: 'in general, scientific research should be ahead of market application. There is a saying & lsquo; use one generation, research one generation, reserve one generation & rsquo;. To say the common point is to eat in the bowl, stare at the pot and think of the field. At present, 4G technology is applied in most regions, and 5g will be put into the market soon. It is normal to start the research and development of next generation communication technology at this time. '
In March this year, Miao Wei, Minister of industry and information technology, said in an interview: 'at the beginning of this year, we started to study the development of 6G, the sixth generation of mobile communication. '
In addition to being faster, 6G may introduce some new technologies. At the mwca 2018 Mobile World Conference held in Los Angeles earlier this year, Jessica rosenworcel, a member of the Federal Communications Commission (FCC), proposed in a speech that 6G would move towards terahertz (THz) frequency, and at the same time, it would introduce dynamic band sharing technology based on blockchain.
Terahertz wave refers to the electromagnetic wave whose frequency is between 0.1THz and 10THz. Its wavelength range is from 0.03mm to 3mm. Its position in the spectrum is between millimeter wave and infrared radiation.
According to Fu Liang, an independent Telecom analyst, 6G is still in the pre research stage, and the standard can only be determined eight to 10 years later. Many information has variables, and the high terahertz frequency is poor in penetration, so we have not yet figured out how to make wide area coverage.