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Cosmote unlocks 3.5GHz potential with LTE-A demo

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Greek operator Cosmote has demonstrated three carrier FDD/TDD aggregation with the help of Nokia Networks, in what the companies claimed was a "world's first".

The Deutsche Telekom subsidiary held the demonstration at Infocom World 2015 in Athens, aggregating band 3, at 1.8GHz and band 42, at 3.5GHz.

Nokia Networks said 3.5GHz could be an important resource to increase mobile broadband capacity and improve consumer services. According to the vendor, as much as 400MHz of spectrum is available globally and this could be used to meet the increasing use of video on mobile networks.

Rachid El Hattachi, SVP Technology Architecture & Blueprints, Deutsche Telekom, said: "Spectrum plays a fundamental role for mobile communications as we look to exploit opportunities to meet the growing demand for network capacity.

"The demonstration of FDD-TDD 3 carrier aggregation together with our partners, sets a benchmark for a completely new combination of technologies including the increasingly recognized band 42 which will be expected to be a mainstream TDD band."

Markus Borchert, Senior Vice President Europe at Nokia Networks, said: "We are proud and pleased to partner with Deutsche Telekom and Cosmote to demonstrate the world's first 3 carrier aggregation across LTE-FDD and -TDD using band 42. With Nokia Networks' expertise in LTE-Advanced, we will help the operator take full advantage of its LTE spectrum to deliver the data experience its subscribers deserve."

Earlier this week, Telstra and Ericsson demonstrated five carrier aggregation on its live network, hitting downlink speeds of almost 1GBps.