Six cities across T-Mobile’s network are now running LTE-U. Using publicly available airwaves in the 5GHz band, it gives the carrier more capacity while offering faster data speeds for T-Mobile customers. Speaking of customers, those with compatible smartphones in the LTE-U locations don’t have to do a darn thing in order to access it. And the same features that T-Mobile uses to beef up its 4G LTE pipeline will also work with LTE-U.
That means Carrier Aggregation, 256 QAM (Quadrature Amplitude Modulation) and 4×4 MIMO (Multiple Input Multiple Output) are being employed on LTE-U. Because LTE-U uses high frequency airwaves, it has limited range which means it needs to be deployed in urban areas. Earlier this year, T-Mobile said that it might use LTE-U to debut its Gigabit LTE services.
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