I have visited most of the hospitals and found that the net connection of mobiles is very slow, can you tell me the reason for this?

I have visited most of the hospitals and found that the net connection of mobiles is very slow, can you tell me the reason for this?

Not just hospitals, you won't find a good mobile network inside any large building unless you have a network extender device. This is because with the upgrade of the generation, the mobile network loses the ability to penetrate the signal walls. This means that the penetration of 2G network is the most because it has low frequency and high wavelength.Thus 3G is less penetrable, 4G is less and 5G is the least because it has a much higher frequency. That's why in the case of 5G, towers will be needed at the corners of the neighborhood if a fair service is expected!

Now the introduction of 3G and 4G. Although they can penetrate the walls fairly well, its power decreases behind multiple walls. Due to this the network is weak in such places and often goes from 3G / 4G to 2G.

Another reason may be the supply of less bandwidth than demand. The speed can be slow if many people use it at the same time.