Revision of Regulations for Wireless LAN Systems

The Ministry of Internal Affairs and Communications (MIC) of Japan revises regulations for radio equipment operating in the 2.4/5.2/5.3/5.6 GHz bands, to introduce next generation high-efficiency wireless LAN.


In recent years, in addition to the spread of smartphones and tablet terminals, there is an expansion of usage of public wireless LAN services in airports, stations, stadiums, schools, etc.

There are increasing cases where smart devices are used in an environment where many wireless LAN terminals are located. In addition, with the future expansion of the use of IoT, wireless LANs are expected to be used in new forms.

In international standardization activities for wireless LANs, the frequency utilization efficiency has improved compared to the conventional system (IEEE 802.11ac). A study was conducted toward the formulation of a next-generation high-efficiency wireless LAN (IEEE 802.11ax) standard that can improve throughput.

Based on this, the Ministerial Ordinance draft establishes the technical standards necessary for the introduction of the next generation WLAN system.

Summary of Revisions

  • Introduce the next generation high-efficiency wireless LAN, via low power data communication system operating in the 2.4 GHz and 5 GHz bands, and high power data of 5.2 GHz band.
  • The frequency used by the radio station of the low-power data communication system using the 5 GHz band, to reduce channel congestion and improve the high-speed communication usage rate while expanding the band.
  • Maintenance of other provisions

Enforcement Date

This takes effect the date of its publication, July 11, 2019.

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