By Circular Letter 4/LCCE/146, the Revision 1 of Recommendation ITU-R M.2177 “Detailed specifications of the satellite radio interfaces of International Mobile Telecommunications-2020 (IMT-2020)" has been announced.
This work is guided by Resolution ITU-R 65.
Resolution ITU-R 65 on the “Principles for the process of future development of IMT for 2020 and beyond" outlines the essential criteria and principles which will be used in the process of developing the Recommendations and Reports for IMT-2020, including Recommendation(s) for the radio interface specification.