Nokia Siemens Networks have just completed their first real-world tests of a trial Long Term Evolution (LTE) network. LTE networks have been chosen as the next step in GSM, following UMTS and HSPA. A trial network was set up in Berlin on 2.6 GHz spectrum as testers with data cards drove cars around within a 1 km radius of the test cell. Test subjects were able to maintain speeds of 100 Mbps with peak rates of 173 Mbps. Nokia Siemens networks will set up additional test sites in metro areas throughout Germany in 2008 using test licenses the company has acquired.