>>14489245>>14489249The technology started with beam shaping on wifi and just gets more advanced. Even wifi beamshaping allows some basic mapping capabilities, but to make mmWave wifi good it relies heavily on beamshaping which can provide even more detail.
https://www.rfglobalnet.com/doc/detailed-indoor-channel-modeling-with-diffuse-scattering-for-g-millimeter-wave-wireless-networks-0001