The International Air Transport Association (IATA) are calling for safeguards around the deployment of 5G/6G to protect avionics systems and radio altimeters.
IATA has presented a paper at the International Telecommunication Union (ITU) WP5B Meeting in Geneva, Switzerland that outlines priority areas for protection. Radio altimeters, which need spectrum availability, must be taken into consideration in 5G planning to ensure aircraft and crew operate at optimum situational awareness.
Guiding the ITU’s studies will inform the output of the World Radiocommunications Conference 2027 (WRC-27), which will determine the technical conditions for 5G and 6G deployment.
Nick Careen, IATA Senior Vice President Operations, Safety and Security, said:
The benefits of 5G and 6G can never come at the cost of aviation safety. Spectrum decisions must be based on real-world aircraft operations, not idealized telecommunications industry modelling. That means ensuring ITU studies fully reflect the most demanding conditions pilots face. With input from aviation users, WRC-27 must deliver clear global rules to ensure the safe coexistence of radio altimeters and other safety-critical avionic systems with next-generation telecom networks across all phases of flight
In many countries, telecommunications providers have voluntarily implemented measures to avoid interference with o the Radio Altimeter (RAD ALT) allocation (4.2–4.4 GHz). However, in countries such as Canada, these temporary measures are about to expire, potentially leaving aviation communications vulnerable.
Careen added:
Current 5G mitigations were never designed as a long-term solution and several will expire within months. At the same time, more resilient radio altimeters will not reach airlines until the next decade. That leaves a significant mitigation gap. With new spectrum auctions underway and protections being lifted in key markets, regulators must not assume safety will take care of itself. The industry needs clear, consistent safeguards to bridge the period before new altimeters are available.
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