AT&T today confirmed to Fierce Wireless that, like its competitors, it is deploying three-channel carrier aggregation on its LTE 4G network. "We're currently in the process of deploying three-way carrier aggregation on our network," said AT&T spokesman Steven Schwadron in a statement given to Fierce. "We're also adding spectrum and equipment on an ongoing basis to further boost our network performance." Schwadron says AT&T began deploying LTE-A in 2014 and now the majority of its customers are covered by two-channel carrier aggregation. Three-channel carrier aggregation bundles together three slices of spectrum to boost capacity and speed. AT&T didn't say specifically which markets are getting three-channel aggregation first, but said it is targeting high-density, high-traffic areas. The company didn't say what spectrum bands it is using for three-channel carrier aggregation, either. AT&T lists some 26 devices as LTE-A capable, though it is not clear if these devices support two- and three-channel carrier aggregation. Sprint, T-Mobile, and Verizon Wireless have all talked about three-channel carrier aggregation deployments in recent weeks.


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