AT&T's mobile 5G will be standards-based, and at least initally, it'll use millimeter wave (mmWave) spectrum. It will also add more 5G capable mobile devices and smartphones to its lineup from early 2019.
AT&T said Dallas, Waco and Atlanta will be among a dozen cities where the carrier will deploy 5G-based mobile services by the end of 2018. That trailblazing move makes the company the only US carrier to roll out plans for the high-speed technology in 2018, according to its announcement.
5G, heralded as the next generation of wireless network technology, is about 10 times faster than 4G, according to experts.
As the company notes, though, 5G isn't just about higher speeds; it is also about lower latency to support applications such as connected cars, the Internet of Things and augmented and virtual reality.
AT&T officials plan to announce the other cities in the "coming months".
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Last June, AT&T said data traffic has increased 250,000 percent on its mobile network since 2007, the year the iPhone was released.
"After significantly contributing to the first phase of 5G standards", said AT&T senior Vice President Igal Elbaz.
Dallas and Waco were chosen due to their strong ties to the company, said Gordon Mansfield, AT&T's vice president of radio access network and device design.
2018 will be a year for the earliest of 5G early adopters.
"We're working on an aggressive schedule to help ensure customers can enjoy mobile 5G when we launch the network this year".