December
December
Often inside large buildings there is a need for cellular repeaters. The owners of these facilities determine who gets to place their equipment inside.
See TTC subway cellular debacle for an extreme example.
December
December
There are a couple of Cell Tower Mapping sites and apps. This is a popular one.
February
February
February
5G has a very limited range compared to LTE/4G. For the higher frequency 5G bands, they do not penetrate buildings very well, especially concrete and steel structures. Unless the owners of the facilities allow repeaters, there's no easy answer.
February