Despite all the carrier-infused hype, we're still in the early days of 5G in the US. A crux for the new network is that it currently mostly only works on extremely low or extremely high frequencies, so it's either barely faster than 4G or super-fast, but hardly able to penetrate walls. The federal government seems to recognize this issue, as it has announced that it will hand over a portion of previously military-exclusive midband frequencies to the FCC, which should help carriers create both more robust and faster 5G networks.

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