2/3G going the way of the Dodo...
Lots of stuff in the comments... Anyway.
Why is 3G ( and by extension 2G ) going the way of the Dodo ?
It's a simple frequency matter. They need to go to make room to 5G. ( and to a lesser extend to a better 4G )
In Europe ( and UK ) :
- most of the 2G Frequencies are in the 900Mhz and 1800Mhz range.
- most of the 3G Frequencies are in the 900Mhz and 2100Mhz range. ( I guess you start to see the issue )
- most of the 4G Frequencies are in the 700MHz, 800Mhz, 900Mhz, 1800Mhz, 2100Mhz and 2600Mhz range ( now it should start to become obvious )
- most of the 5G Frequencies are in the 700MHz, 800Mhz, 900Mhz, 1800MHz, 2100Mhz, 2600Mhz and 3500Mhz ( now it should be obvious )
you can only cram so many channels in a given frequency range...
So you need to free the range from the stuff that used it ( say ditch the 2/3G in the 900Mhz/1800Mhz/2100Mhz ) in order to reuse it for a new purpose. ( say 5G )
That's also what occurred with the 700Mhz range, it was used by the TV broadcast, and with DVB-T they freed most of the range to be reused in mobile phones.