Swedish vendor Ericsson and Spanish telecoms giant Telefonica have demonstrated live, over-the-air delivery of LTE in unlicensed spectrum (LTE-U) through the latter’s domestic network, it has been announced. In a press release confirming the development it was revealed that the demonstration used the Ericsson RBS 6402 – a high-performance indoor pico cell solution offering three standards (LTE, W-CDMA and Wi-Fi), ten frequency bands and up to 300Mbps LTE carrier aggregation (CA).
Ericsson has, meanwhile, also announced the implementation of a range of enhancements to its Networks Software LTE-U offering, including improved LTE-U performance and efficiency, and reduced LTE-U transmission duration in line with 3GPP Release 13 LAA specifications. Such enhancements, it has claimed, will allow operators to leverage unlicensed 5GHz spectrum for improved peak rates and capacity even before Rel-13 LAA becomes available, in places where national regulations allow the use of pre-Rel-13 LAA standards.
Angel Blazquez, director of Radio and Core at Telefonica Espana, said of the trials: ‘This demonstration proves that multiple technologies will co-exist for best use of all spectrum and to support all deployment scenarios, widening the LTE ecosystem using the aggregation with licensed spectrum to provide the best performance experience.’ Meanwhile, Ericsson’s Head of Mobile Broadband, 4G/5G Radio Access Eric Parsons was cited as saying: ‘By enabling the use of unlicensed 5GHz spectrum to boost peak data rates and capacity, LTE-U helps operators extract maximum value from their spectrum investments while bringing high-quality experiences to mobile broadband users everywhere.’