Sounds like a solution to a problem already solved by DECT NR+ -- a 5G technology that is 'subscription free'.
I didn't know about this. Neato. Links for the lazy:
https://www.nordicsemi.com/Products/Wireless/DECT-NR
https://en.wikipedia.org/wiki/DECT-2020
alt Hacker News
I didn't know about this. Neato. Links for the lazy:
https://www.nordicsemi.com/Products/Wireless/DECT-NR
https://en.wikipedia.org/wiki/DECT-2020