T-Mobile Launches Narrowband Communications for Internet of Things
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As part of its run-up to nationwide 5G communications, T-Mobile has launched narrowband IoT, a series of bands intended specifically for sensors and other devices that communicate only small amounts of data at any one time, but which need a dedicated band in which to do it.
T-Mobile has utilized the guard bands, which are narrow slices of frequencies next to their LTE bands used for cellular communications, as a way to achieve spectrum efficiency.