Interim Report on High-Power 6 GHz Wi-Fi and Advanced 5 GHz DFS
Overview
Japan’s Ministry of Internal Affairs and Communications published an interim report by the Telecommunications Council on the technical conditions needed for high-power use of 6 GHz Wi-Fi and on advances to DFS for 5 GHz Wi-Fi. The ministry plans to develop the relevant rules based on the report. For high-power use, technical requirements including an AFC system were examined on the premise of appropriate frequency sharing with existing wireless systems.
Key points
- The Telecommunications Council issued an interim report on high-power use of 6 GHz Wi-Fi and advances to DFS for 5 GHz Wi-Fi.
- For high-power use in the 6 GHz band, technical conditions enabling appropriate frequency sharing with existing wireless systems were examined.
- The Ministry of Internal Affairs and Communications plans to develop the relevant rules based on the interim report.
Overview
Although use of the 6 GHz band is expanding internationally as an important frequency range for next-generation Wi-Fi, high-power operation is needed to enable appropriate frequency sharing with existing wireless systems.
The United States and Canada operate high-power systems using automated frequency coordination (AFC), while other countries are also examining advances in Wi-Fi, including AFC adoption.
Key figures
- Publication date of the interim report
- July 24, 2026
- Date of the Telecommunications Council interim report
- July 2, 2026
- Publication date of the related press material
- April 21, 2026
- Publication date of the public comment results
- June 15, 2026
Impact
If the relevant rules are developed, they could provide an institutional foundation for advanced operation of Wi-Fi in the 6 GHz and 5 GHz bands.
Advances to 5 GHz DFS are positioned as an effort to ensure consistency with international Wi-Fi standards.
Details
In Japan, the feasibility of frequency sharing with existing wireless systems was organized while considering the technical requirements for an AFC system, and technical conditions for high-power use of 6 GHz Wi-Fi have been examined.
In parallel, advances to DFS (Dynamic Frequency Selection) for 5 GHz Wi-Fi were examined to ensure consistency with international Wi-Fi standards.
Following deliberations by the Subcommittee on Communications Technology, the Telecommunications Council compiled an interim report covering both items.
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