If you have been wondering why T-Mobile, the fastest-growing major U.S. carrier, wants to merge with a company that is struggling like Sprint, we can tell you that it has nothing to do with Sprint's business prospects. The deal is all about the hoard of 2.5GHz mid-band spectrum that Sprint has and T-Mobile wants. The latter is looking to complete the first nationwide 5G network next year using a combination of its 600MHz low-band spectrum, its ultra-high mmWave spectrum, and Sprint's mid-band airwaves.
Low-band signals travel farther and penetrate buildings better ...