The Ministry of Internal Affairs and Communications of Japan is revising its frequency allocation plan in response to the outcomes of the International Telecommunication Union, World Radiocommunication Conference 2023. Effective September 2, 2024, this revision introduces new frequency allocations for several key applications, including IMT high altitude platform base stations, aeronautical mobile satellite services, and the modernization of the Global Maritime Distress and Safety System.

These updates aim to enhance the efficiency and reliability of emergency communications and improve global maritime safety. The public is invited to provide feedback on the proposed frequency allocations from July 27 to September 2, 2024. The final plan will be developed after considering public comments and the recommendations of the Radio Administrative Council.

Key Changes

• IMT High Altitude Platform Base Stations: Allocations in the 694 MHz to 2,690 MHz range will boost coverage in remote areas, enhancing connectivity in rural regions and during emergencies.
• Aeronautical Mobile Satellite Services: New frequency allocations will improve mobile communication on aircraft, enhancing passenger experience and operational efficiency in areas with limited ground infrastructure.
• GMDSS Modernization: Upgrades to the Global Maritime Distress and Safety System will incorporate advanced technologies and satellite services, enhancing communication and safety in maritime emergencies.

The feedback period provides an opportunity for stakeholders to influence the final allocation plan, ensuring that it meets the needs of all users effectively.