Published in March 2023, this report authored by Ambroise Popper and Deepak Joseph of NetNav, and Thomas Block and Ryotaro Sakauchi of Bosch Sensortec, discusses the technical requirements for deploying Wi-Fi 6/7, utilizing the 6 GHz band, compared to older Wi-Fi networks operating in the 2.4 GHz and 5 GHz bands. The 6 GHz band is also used by microwave and satellite communications. The US Federal Communications Commission (FCC) maintains a database containing the altitudes of equipment transmitting in the 6 GHz band, requiring the altitude of Wi-Fi access points to be reported. Two methods for measuring altitude are described: Height Above Terrain and Height Above Ellipsoid (a mathematical model of the Earth). Altitude measurements can be calculated using air pressure measurements from a barometric sensor.

Keywords: Communications, Home Networking, Intelligent Building, Internet of Things (IoT)