Discuss the Key Development Direction of 6G Key Technology Based on 5G Technology

At present, mobile communication has developed from the first generation (1G) analog communication, the second generation (2G) digital communication to the third generation (3G) quasi broadband mobile communication, the fourth generation (4G) mobile communication system and the fifth generation (5G) mobile communication system, and has made significant achievements. On November 16, 2021, the Ministry of Industry and Information Technology issued the “Fourteenth Five Year Plan” for the Development of Information and Communication Industry, which listed the research and development of 6G basic theories and key technologies as the core technology evolution and industry promotion project of mobile communication., Put 6G research on the agenda, which will further meet people's requirements for mobile data transmission performance in the future, and will also bring about a hundred times higher energy efficiency and a hundred times lower bit rate for the network. This paper introduces several key technologies that may be involved in the future 6G, including terahertz band, new antenna technology, full duplex technology, spectrum sharing technology, AI technology, etc.(Abstract)