Wi-Fi Sensing (802.11bf) was scheduled for WiFi 7, which is present in recently announced "AI PCs". It works best with an on-device "AI" NPU that can perform inference on WiFi radar signals reflected from local humans and objects, to infer surrounding movement, breathing, keystrokes, location & more. It wasn't mentioned in recent device announcements, so perhaps the device firmware and algorithms are awaiting regulatory approval?

Intel 2023 demo, https://community.intel.com/t5/Blogs/Tech-Innovation/Client/...

> the first commercial Wi-Fi sensing feature of Wake-on-approach and Walk-away lock on Intel’s Raptor Lake platform. This feature detects when a person approaches the PC so as to bring it out of sleep and get it ready for user input by the time the person reaches the device ... Intel Labs will demonstrate an early prototype of breathing detection .. The solution detects the rhythmic change in CSI due to chest movement during breathing. It then uses that information to detect the presence of a person near a device, even if the person is sitting silently without moving. The respiration rates gathered by this technology could play an important role in stress detection and other wellness applications.

Qualcomm 2023 demo, https://youtube.com/watch?v=-HYTt1doRRY

> Working with China Unicom and ZTE, Qualcomm showed centimeter-level positioning in complex industrial facilities. Building on precise positioning, RF sensing uses changes in radio propagation to detect and track device-free objects.

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