LTE Advanced in operation with more than 20 carriers

LTE Advanced, referred to as LTE-A, has been quietly taking the stage in select markets around the world. Right now, 21 networks have LTE-A in operation in some shape or form.



Last summer, SK Telecom in South Korea was the first to light up an LTE-A network whose performance was the original definition of the “fourth generation” wireless standard. However, the marketing machines of the wireless carriers would not be daunted, and the advent of plain-old-LTE forced the standards bodies to re-write the specifications.



In the United States, AT&T has LTE-A running in and around Chicago, ...



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