Nokia Siemens Networks said it is conducting end-to-end interoperability testing with four LTE device makers.
The vendor said the tests covered a number of steps in end-to-end network configuration based on commercial LTE hardware, including the Flexi Multiradio base station, the Evolved Packet Core and standard compliant software in the AWS, 700MHz and 2100MHz frequency bands.
The company said the tests were taking place at its LTE competency center in Dallas in close cooperation with research and development sites in Ulm, Germany, and Oulu, Finland.
In recent weeks, the company's rivals also have touted their own LTE accomplishments. Alcatel-Lucent recently said it will launch 14 new LTE operator trials during the next six months. And last month, Ericsson was chosen by MetroPCS as the primary infrastructure vendor for the carrier's forthcoming LTE network, the second major LTE contract win Ericsson has in North America alone (after Verizon Wireless).
Separately, the newly appointed head of its U.S. division, Sue Spradley, said that its Dallas site was being used to trial LTE for a large customer, speculated to be T-Mobile U.S. Despite not having gained a role in the high-profile Verizon Wireless LTE contract on the radio access side, Spradley claimed it was "not the end of the world", and that NSN would "be a leader in LTE in this [U.S.] market."
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