The first conference preparatory meeting (CPM1) to the World Radiocommunication Conference 2023 (WRC-23) was held in Sharm El Sheikh on 25 and 26 November 2019. In the meeting, the items that will be studied during the upcoming period were discussed. They are as follows:
- Earth stations in motion (ESIM) and the conditions to be determined for further ESIMs communications with non-geostationary space stations in the fixed-satellite services to provide reliable broadband Internet services for aircraft, ships and land vehicles.
- The High-altitude IMT base stations (HIBS) and the study of the potential use of the same frequency bands used in IMT terrestrial base stations on High Altitude Platform Station (HAPS) for extended mobile broadband connectivity that will be provided to unserved and remote areas.
- Aeronautical mobile applications – the upgrading of HF aeronautical and new non-safety aeronautical applications for air-to-ground and air-to-ground communications for aircraft systems and potential new allocations to the aeronautical mobile-satellite service to support VHF aeronautical communications in Earth-to-space and space-to-Earth directions.
- The Global Maritime Distress and Safety System (GMDSS) - Improved communications and additional spectrum and satellite resources to enhance GMDSS maritime capabilities, such as e-navigation.
In addition, the items that will be studied in WRC-23 have been distributed to the various ITU Study Groups to coordinate the work programs of the relevant Study Groups, prepare the draft CPM Report structure on the upcoming WRCs agenda and study the technical characteristics of these services and possible ways of sharing with other services operating in the same frequencies under study and the adjacent frequencies.