Terminology » WiFi 7: Automated Frequency Coordination (AFC) benefits

WiFi 7: Automated Frequency Coordination (AFC) benefits

wifi 7 wi-fi 7 afc automated frequency coordination

Introduction : Wi-Fi 7 introduces Automated Frequency Coordination (AFC) to optimize use of the 6 GHz band. It ensures higher performance while preventing interference with licensed users. Let us explore its working and discover benefits of AFC in WiFi 7 technology.

What is AFC in WiFi 7 ?

  • It is a spectrum management system which has been introduced in Wi-Fi 6E and Wi-Fi 7.

  • In WiFi AFC mode, devices operate in the 6 GHz band (5925–7125 MHz). This band is also used for satellite services as well as fixed microwave links.

  • In order to avoid interfering with other users of this 6 GHz band, Wi-Fi devices enables AFC. Due to AFC, Wi-Fi access points (APs) automatically check which frequencies and power levels are safe to use at a given location.

  • The AP communicates with cloud based AFC database/service, which provides list of available channels and transmit power limits based on regulatory rules.

How it Works

Following steps describe how AFC works in Wi-Fi 7 network system.

Step-1: A Wi-Fi 7 access point (AP) requests spectrum availability from the AFC system.

Step-2 : The AFC system cross checks with its database of incumbent users and frequency assignments.

Step-3 : The AFC system responds with a list of allowed frequencies and maximum transmission power.

Step-4 : The AP configures itself accordingly to avoid interference while still delivering high throughput.

Advantages of Automated Frequency Coordination (AFC)

Following are some of the benefits of AFC.

  1. APs can transmit at higher power levels without interfering with incumbent users of 6 GHz band. This extends coverage range.
  2. Supports dense device deployments with more reliable connections in both enterprise and public networks.
  3. Reduces congestion and provides better spectrum utilization, improving overall efficiency and user experience.

Conclusion: AFC in Wi-Fi 7 unlocks wider channels, higher power and safer spectrum usage. It enhances speed, coverage and reliability while complying with regulations.