Motorola Demos Prototype Public-Safety LTE Data Device
Wednesday, November 10, 2010 | Comments
Motorola executives Dan Naylor (left) and Kevin Tenbrunsel demonstrate the company's LTE prototype data device.
Motorola held a demonstration of its Long Term Evolution (LTE) technology at a user group meeting in Las Vegas Tuesday, and an executive said its first-release public-safety LTE product will be available in the third quarter of 2011.
The demonstration was conducted using a prototype data adapter device streaming video to a laptop. Data rates were 16 Megabits per second (Mbps) on the downlink and 6 Mbps on the uplink, said engineers at the demo.
The demonstration included an LTE prototype core and LTE radio access network (RAN) at 5 watts. Two multiple input multiple output (MIMO) antennas, along with two additional antennas similar to those that would be on a public-safety vehicle, transmitted the data to the USB-like device. A canned video clip and live video were streamed during the demonstration.
The nomadic data adapter device works in band 14 public-safety and D block spectrum. Motorola plans to release the data adapter in the second half of the year.
Motorola announced plans to release additional LTE devices, including a rugged in-vehicle modem in the second half of 2011 and a rugged handheld device in the first half of 2012. A fixed customer premise unit (CPU) for utilities and other markets is being considered, along with a handheld device that could work on Project 25 (P25) voice networks and LTE broadband networks, although no timeframes were given for those concepts. Motorola executives said the chipset will be the same for all its LTE devices, but declined to name the chipset vendor.
“Additional devices are under investigation,” said Kevin Tenbrunsel, Motorola director of 4G private broadband business development for North America.
“Our first prototype units will be delivered to the Bay RICS (Regional Interoperable Communications System (RICS) during the next few months,” said Dan Naylor, Motorola government and public-safety product portfolio manager for wireless broadband solutions. Motorola also plans to participate in the Public Safety Communications Research (PSCR) demonstration network under way in Boulder, Colo. Alcatel-Lucent was the first vendor to go live on the PSCR network last month.
Tenbrunsel said several features will be included in Motorola’s first-release LTE product. The release will include P25 to LTE push-to-talk (PTT); enhanced quality of service and priority services; ruggedized devices; VoIP telephony; multiagency configuration, management and operations; enhanced video streaming; integration with CAD systems; and carrier roaming and interoperability.
Motorola plans to offer an LTE-based public-safety interoperability gateway to allow for interoperability across agencies. Officials noted the company has made a “significant investment” in research and development (R&D) of public-safety LTE technology during the past year. “Our No. 1 R&D expenditure this year is for LTE for public safety,” Tenbrunsel said.
Naylor said LTE coverage will require two to fives times the number of sites as P25 networks for the same coverage area, so partnerships and site sharing will be key for public-safety LTE systems.  
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