Scientists in Germany have demonstrated a startling new form of surveillance: identifying people using nothing more than ordinary WiFi signals. By analyzing how radio waves bounce around a room, researchers can effectively “see” and recognize individuals — even if they are not carrying a device and even if their phone is turned off.
Sensing is officially going to be part of 6G, might not be deployed everywhere, but it’s going to be in the standard.
Sounds like the higher frequency 6G would have better resolution (potentially sub mm?) than Wifi 7’s ~5cm. Article about 6G ISAC.