Vodafone Germany has introduced peak download speeds of up to 500Mbps over its LTE-Advanced (LTE-A) network in Dusseldorf, with plans to expand the service to Dortmund, Dresden and Stuttgart ‘shortly’. The LTE-A utilises tri-carrier aggregation (3C) technology in the 800MHz, 1800MHz and 2600MHz frequency bands, and is currently available to subscribers with compatible handsets. Vodafone is planning to expand the super high-speed LTE-A service to 15 cities by the summer, reaching a total of 30 locations by year-end. TeleGeography notes that Vodafone trialled the high-speed network in parts of Berlin and Dusseldorf in November last year.