According to the official WeChat account of the China Academy of Information and Communications Technology, at the plenary meeting of the Fourth Study Group of the International Telecommunication Union Radio Bureau (referred to as ITU-R SG4) on September 23, the China Academy of Information and Communications Technology (hereinafter referred to as "The international standard "Vision, Requirements and Evaluation Methods for 5G Satellite Radio Interface " led by the China Academy of Information and Communications Technology was officially adopted, marking China's major achievements in the international standardization of 5G satellite communications.
On this basis, the ITU issued a circular letter and began to solicit candidate technologies for 5G satellites from all over the world. According to the current work plan, the 5G satellite technical standard specification proposal will be released in the first half of 2025.
The China Academy of Information and Communications Technology stated that in order to meet the needs of diverse application scenarios in the 5G era, the "5G Satellite Radio Interface Vision, Requirements and Evaluation Methods" standard specifies three major application scenarios for the 5G satellite part, eMBB-s (enhanced mobile broadband), mMTC-s (massive machine type communication), HRC-s (high-reliability communication) and three terminal types, including handheld terminals, IoT terminals, and VSAT terminals. Compared with the satellite part in the 4G period, the key performance indicators of 5G satellites are more diversified, and the performance has also been significantly improved.
In addition, the standard specifies criteria and methods for evaluating candidate technologies and points the way for the development of detailed specification proposals for the radio interface of the 5G satellite segment. For the 13 key performance indicators of the 5G satellite part, the standard specifies the corresponding application scenarios, test environment, satellite system configuration, terminal configuration, etc.
According to reports, this 5G satellite international standard was led by the China Academy of Information and Communications Technology. Some of the contents of the vision and technical indicators adopted the relevant content of the research report "Research on 5G-based Satellite Communication System" by the China Communications Standards Association. The participating units include CITIC More than 20 companies and universities, including Science and Technology Mobile, Huawei, ZTE, Xiaomi, China Satcom, China Mobile, China Unicom, Telecom, UNISOC, Galaxy Aerospace, Asia Pacific Satellite, Kingsignal, Frontier Exploration, Alibaba, Beijing University of Posts and Telecommunications, etc. and scientific research institutions.