AT&T will light up cities with 5G mobile technology this year. Faster data speeds and shorter communication delays could enable technology like self-driving cars. 5G technology has potential to create things like smart traffic lights as well. AT&T’s 5G will use millimeter wave connections – high-frequency radio waves that send signals at long distances. The AT&T networks will only work with a Wi-Fi connection. Later, AT&T will support 5G expansion beyond metro areas with lower-frequency radio bands that travel even further.
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