Nokia Siemens Networks (NSN) is carrying out field trials of long term evolution (LTE) and MIMO (multiple input/multiple output) technology in Berlin, aiming to achieve mobile internet/data speeds of up to 173Mbps. The trial is being run in partnership with the Heinrich Hertz research institute using an LTE base station in the city centre which uses 20MHz of spectrum in the 2.6GHz frequency band. To test the base station’s coverage and throughput, road vehicles equipped with LTE terminals drive within a radius of one kilometre. NSN has acquired 2.6GHz test licences for several major German cities, ahead of the anticipated award of new commercial spectrum concessions to mobile network operators in the next couple of years. Last year NSN demonstrated LTE/MIMO mobile data transmission at speeds of up to 160Mbps.