[Ministry of Industry and Information Technology: Strengthen the coordination of high, medium and low orbit satellite constellations to enhance the capacity of high orbit wide and narrowband communication satellite systems] On September 7, the Ministry of Industry and Information Technology issued the "15th Five-Year Plan for the Development of the Information and Communications Industry". It mentioned that the coordination of high, medium and low orbit satellite constellations should be strengthened, the capacity of high-orbit wide and narrow-band communication satellite systems should be improved, and the networking service capabilities of low-orbit satellite Internet, high-orbit satellite communication systems, and satellite Internet of Things should be enhanced. Promote the deep integration of satellite networks and terrestrial communication networks, coordinate the construction of satellite-ground interconnection centers, and carry out applications such as direct connection of mobile phones to satellites and satellite Internet of Things. Make full use of terrestrial communication facilities such as 5G/5G-A to promote low-altitude communication network coverage as needed. Actively explore the deployment of 5G air-to-ground communications (5G-ATG), expand the scale of route technology trials in a timely manner, and promote the development of airborne communications. Explore the application of high-altitude floating platforms such as stratospheric airships and solar drones to improve the coverage and quality of communication networks. Promote the integrated development of “5G+Beidou”.