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Ericsson Runs Live Trials of LTE-Advanced in Sweden
|29 июня 2011|
Ericsson has demonstrated a working version of LTE-Advanced to the Swedish Post and Telecom Agency (PTS). The demonstration, held in Kista, Sweden, featured speeds more than 10 times faster than those currently experienced by LTE consumers in Sweden.
The system, based on commercial hardware, was operating on a test frequency provided by the PTS. This enabled Ericsson to demonstrate LTE Advanced functionality such as carrier aggregation of 3 x 20MHz (60MHz aggregated) over the air in a mobile environment for the first time.
"Ericsson encourages all regulators to allocate harmonized spectrum as early as possible," says Ulf Ewaldsson, Vice President and Head of Product Area Radio, Ericsson. "The next step of LTE enhances the current service offering, performance and data speed even further. It provides operators with the opportunity to capitalize further on their existing infrastructure. Once again, Ericsson is committed to supporting operators' needs as expectations and requirements for mobile broadband services increase."
The enhancements introduced with LTE Advanced include carrier aggregation and extended multiple-input, multiple-output (MIMO) functionality. From a user perspective, this means that information can be retrieved and sent much faster, even when the network is congested. This, in combination with the faster speeds, improves the user experience significantly.
The demo system was based on Ericsson's radio base station, RBS 6000. Live traffic was streamed between the RBS and a moving van from which network performance could be monitored. In the demonstration, 60MHz of aggregated bandwidth was used, compared to the 20MHz maximum that is currently possible using LTE. In the downlink, 8x8 MIMO was used.
The first stages of LTE Advanced are expected to be in commercial operation in 2013.
Источник: Cellular news