Radio astronomy spectrum impacted by WRC23 mobile service agenda items

Abstract

The agenda of the 39th World Radiocommunications Conference (WRC23) planned to be held in autumn 2023 includes several agenda items for new frequency allocations or upgrades to the spectrum used by mobile services. This includes new frequency allocations for the International Mobile Telecommunications (IMT) services, upgrades to aeronautical mobile services and enhanced regulatory provisions for the maritime mobile services. The proposed changes to the radio spectrum regulations under these agenda items could directly impact several frequency bands allocated to the Radio Astronomy Service (RAS). Sharing and compatibility studies during the current cycle would be required to ensure proper protection for RAS as a passive service in these bands.