T-Mobile today provided more details concerning its forthcoming 5G network. It will be building 5G across 30 cities in the U.S. this year. It will start with New York City in the 600 MHz and mmWave spectrum bands. Other named cities include Dallas, Las Vegas, and Los Angeles. The company has been fortifying its LTE 4G network with technologies such as carrier aggregation, 4x4 MIMO, 256 QAM, License Assisted Access, and FD-MIMO with 64 antennas (32 transmit, 32 receive). The company is not going to cap its LTE network in any form, continuing to use it for the foreseeable future. All these technologies have helped the company prepare for 5G. T-Mobile says 5G and 4G are going to coexist and live together. T-Mobile reiterated that it will first use its 600 MHz spectrum for 5G, though it is also eyeing the 3.5 GHz mid-band and 28 GHz mmWave spectrum. The FCC expects to auction off 28GHz later this year. T-Mobile didn't specify what mmWave spectrum it will us for its 5G network. T-Mobile sees 5G encompassing fixed broadband (routers), mobile service (phones, AR/VR, wearables, drones), and IoT (sensors, industrial automation). It will cover every inch of the U.S. with some 5G service by 2020 with equipment from Nokia and Ericsson. The company is already deploying 5G NR-capable hardware in its base stations. T-Mobile expects to debut the first 5G smartphones and other products during the first quarter of 2019.


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