Japan has updated its Radio Law that will affect WLAN operation in the 5 GHz and 6 GHz bands. In brief these changes impact:
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- Allow the operation of WLAN systems in automobiles in the 5150-5250 MHz band. Power is limited to 40mW EIRP.
- Allow operation in the 5925-6425 MHz band. This is a new allocation for Wi-Fi 6E devices. Devices can be used indoors with a power level of 200mW EIRP; or indoor and outdoors with a power level of 25mW EIRP.
These changes were enacted on 2 September 2022.