The Office of Communications, commonly known as Ofcom, is the government-approved regulatory and competition authority for the broadcasting, telecommunications and postal industries of the United Kingdom. It is similar to how FCC regulates the use of Wi-Fi channels in the United States.
UK currently use a part of the spectrum called the 2.4 GHz and 5GHz band, which is becoming increasingly congested and can impair broadband performance. Ofcom last month decided to update their regulations to allow Wi-Fi use in the 5.8 GHz band (U-NII-3). This decision opens an additional 125 MHz of spectrum in a ‘sub-band’ within the 5 GHz frequency range for Wi-Fi – while ensuring protection for other users, such as satellite services. The extra sub-band increases the number of 80 MHz channels available for Wi-Fi from four to six.