Summary

Satellite communications is a type of communications using satellite-borne equipment as part of or all of the communication network. In developing countries, considering the limitations on the capabilities and capacity of land-based networks, the use of satellite communications is important. Supplement 81 to ITU-T Y-series Recommendations specifies some use cases and the corresponding requirements of satellite communication networks in developing countries, in the context of non-radio aspects of IMT‑2020 networks and beyond.