­Nokia Siemens Networks, Cisco and Harris have jointly announced that they have completed the initial section of the Public Safety Communications Research (PSCR) program phase 3 LTE Demonstration Network Test Plan.

The results show these companies have completed conformance and interoperability testing of their public safety LTE solutions at the Department of Commerce Boulder Laboratories in Boulder, Colorado, and support the work of the PSCR program team.

The PSCR phase 3 testing includes conformance assessment of the network architecture, interoperability testing, handover testing and evaluation, and focused testing for stress, performance, messaging/protocol and applications.

Nokia Siemens Networks supplied its public safety LTE radio access network solution with its partner Harris. This partner solution is currently being used in 700 MHz Band 14 LTE pilot programs with the Las Vegas Metropolitan Police Department and with police officers in Miami-Dade County, Florida.

The initial PSCR testing confirmed successful interoperability between the Nokia Siemens Networks' radio access network and the Cisco ASR 5000 series multimedia core platform. Cisco supplied the LTE evolved packet core technology on its Cisco ASR 5000 series.

The companies were also part of a consortium that successfully deployed the nation's first demonstrated multi-vendor interoperable public safety LTE network during the Republican National Convention in Tampa, Florida.