At present, the world has started directional research on 6G and conducted in-depth analysis on some potential technologies (such as terahertz communication technology). 'THz communication should be a new 6G spectrum resource technology, just as 5G expands spectrum resources to millimeter waves. Professor Li Shaoqian, director of the national key laboratory of communication anti-jamming technology at the University of Electronic Science and Technology of China, said in an interview.
Terahertz waves are electromagnetic waves between microwaves and infrared rays. The reason why the industry attaches so much importance to terahertz is that terahertz technology has broad application prospects, including terahertz will be the basis of 6G or 7G communications.
Li Shaoqian stated that with the continuous development of wireless communication requirements and technologies in the future, new spectrum resources need to be continuously developed to increase the information transmission rate. Terahertz band (0.1-10 THz) Spectrum resources have high-capacity transmission capability of 100 Gbps or more. In the future, wireless and mobile Communication is very useful.
The development and utilization of terahertz spectrum resources has been highly valued and vigorously developed by all countries in the world. According to Li Shaoqian, Japan has listed the development of terahertz technology as the top ten national strategic key strategic goals, claiming to be at the 2020 Tokyo Olympics. Realize 100Gbps terahertz high speed communication, 1000 times faster than current LTE network; EU has listed developing terahertz communication as 6G research plan; ITU has agenda item 1.15 at WRC-19 to determine land movement in frequency band above 275GHz The technical and operational characteristics of the fixed service system include the study of relevant spectrum requirements, the establishment of a propagation model in the frequency range of 0.275-0.450 THz, the conduct of electromagnetic compatibility analysis between services, and the determination of candidate frequency bands.
“Over the past ten years, China has carried out a lot of research work on terahertz sources, detectors, modulators and other functional devices and wireless communication systems, and achieved a series of key results. 'Li Shaoqian said, I hope the country will continue to increase investment. In order to break through the bottleneck of key technologies, lay the foundation for the subsequent development of 5G, and the development and application of new spectrum resources for 6G new generation mobile communications.
Looking into the future evolution of 6G, Li Shaoqian said that 6G will be smarter and more flexible than 5G, more secure and reliable, with greater transmission rate and capacity, and the multi-domain integration of air, space, and the world can meet more application scenarios.