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The blogger is full of crap. 3G base stations don't automatically upgrade themselves to 4G. It costs a fortune to upgrade each tower. The backhaul also has to be upgraded to cope with the extra bandwidth that the tower can cope with due to the increased spectrum efficiency (more data in the same frequency space due to SCIENCE!).

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Can you expand on why it costs so much to upgrade a basestation? the fiber is already rolled out, the contracts between land owners have already been signed, the surveys for radio propagation have already been done. I honestly don't think the upgrade from 3g to LTE was nearly as expensive as the upgrade from EDGE/2g networks to 3g was for carriers. Also it was much, much quicker for them to roll out LTE networks vs 3g networks.

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