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AT&T says it will offer 5G wireless in a dozen cities by late 2018

A cellular telephone transmitter farm sits on a tower in Brooklyn in New York on Saturday, March 12, 2016. Photo: Richard Levine/Corbis via Getty Images

AT&T plans to begin mobile 5G service in a dozen cities later this year, the company said Wednesday, suggesting the next generation of wireless technology will arrive sooner than expected. The move follows the recent ratification of a key 5G wireless standard.

Why it matters: The next generation of technology, aka 5G, is designed not only to offer faster data speeds, but also support far more devices and allow the kind of ultra-low-latency needed to handle remote operation of equipment and medical gear.

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