At the 2014 Mobile World Congress (MWC) in Barcelona this week, TeleGeography witnessed as Vodafone Spain demonstrated downlink transmission speeds of 540Mbps in a carrier aggregation (CA) trial that bonded frequency division duplex (FDD) LTE technology with time division duplex (TDD) LTE technology. A total of 70MHz of bandwidth was used for the tests, which were carried out in conjunction with Huawei.
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