Ericsson, Orange in successful LTE-Advanced test
Data speeds of 300 Mbps achieved using 3.5 GHz band in aggregation with 2.6 GHz band
Ericsson and French telecoms operator Orange announced today that they have conducted a successful LTE-Advanced FDD trial, using the 3.5 GHz frequency for testing data speeds, coverage and FDD carrier aggregation.
This test was carried out through October and November 2014, and built on the results of the first phase of the two companies' LTE-A trial. This first phase was performed at Orange Labs in Paris, where speeds of 300 Mbps were achieved by using the 3.5 GHz band in aggregation with the 2.6 GHz band.
The phase confirmed the ability of 3.5 GHz FDD technology to increase mobile broadband capacity, the two companies said in a statement. This provided a green light for the second phase - this latest test - on Orange's live network in the French city of Bordeaux, using Ericsson's pre-commercial FDD 3.5 GHz radio base station equipment.
A peak performance of 150 Mbps at a distance of up to 700 metres was achieved in the 3.5 GHz band when used alone, and speeds of 300 Mbps were attained when used in aggregation with the 2.6 GHz band, the two companies said.
"This live FDD trial demonstrated that the 3.5 GHz band can be successfully used in urban and suburban environments in stand-alone mode or in aggregation with another band to provide advanced mobile broadband services using a FDD access scheme for high peak data rate applications to enhance user experience," said Alain Maloberti, senior vice president at Orange Labs Networks.
Ericsson said that the project has provided an opportunity to gather experience on the ways future multi-frequency networks could be optimised from cost and performance perspectives. The vendor said that one of the most rewarding results of the trial is the confirmation that the existing network grid can be re-used for a 3.5 GHz macro grid - in Bordeaux, the trials used the same grid as for the 1,800 MHz and 2.6 GHz bands.
"This live FDD trial also demonstrated that the macro coverage of 3.5 GHz spectrum is suitable for providing substantial capacity gains that can satisfy future consumer needs," said Thomas Noren, vice president and head of Radio Product Management, Ericsson.