Verizon enlists Boingo to help it bring 5G indoors
 

Sure, real 5G is up to three times faster than LTE, but there are a few caveats. As we discovered in Chicago, 5G doesn't always hold up when you're trying to use it indoors. Even a pane of glass can cause your signal to flicker between 5G and 4G. Ver...

https://www.engadget.com/2019/08/22/...public-spaces/