I wonder how much of this deal was made with the intention of acquiring T-Mobiles spectrum rights? I'm under the impression that GSM was mainly a technology fo

I wonder how much of this deal was made with the intention of acquiring T-Mobiles spectrum rights? I'm under the impression that GSM was mainly a technology focused in the time domain, and the newer 4G technologies seem like they're more centered around the frequency domain. It occurs to me that if lack of spectrum is a problem for 1 it is probably a problem for the other, so it would make sense for both carriers to merge?