DoD Authorizes VT-ARC and
iPosi, Inc. GPS Signal Processing for 5G Shared
Spectrum
April 12, 2022
iPosi, Inc. and Virginia
Tech Applied Research Corporation (VT-ARC) have been
contracted by the Department of Defense's Defense
Spectrum Office (DSO) to develop a GPS/GNSS system
to measure radio frequency (RF) path-loss that
substantially increases shared spectrum without
interference. The OTA contract addresses the need
for increased shared spectrum between the DoD and
wireless providers who require expanded access
because of skyrocketing demand for broadband 5G
spectrum.
iPosi's in-building SMART 5G
measures the loss profile to protect military and
commercial spectrum from interference in shared or
adjacent bands.
iPosi's in-building SMART 5G
measures the loss profile to protect military and
commercial spectrum from interference in shared or
adjacent bands.
iPosi, Inc. and VT-ARC
collaborate with the Department of Defense to
develop GPS/GNSS system to increase shared spectrum.
The agreement represents a
collaboration among multiple academic and industry
partners, one of several endeavors by the Defense
Information Systems Agency and Defense Spectrum
Organization under the Spectrum Sharing Test &
Evaluation (SSTD) project as part of the DoD
Advanced Wireless Systems–3 (AWS-3) spectrum
transition program. Not only would the iPosi /
VT-ARC technology enable a substantial increase in
protected, interference-free wireless service that
operates in DoD or federal government bands, but
once scaled, it could also support broader civilian
and federal shared spectrum operations which are
essential to both spectrum protection and growth of
5G.
"This relationship is an
important foundation for DoD and commercial
applications of our technology across a wide range
of spectrum sharing initiatives.
We look forward to collaborating with our partners
to enable greater spectrum sharing," Richard Lee,
CEO of iPosi, Inc. said.
Mr. Lee cites their three-year
relationship with VT-ARC and DISA/DSO as an
important foundation for commercial and government
applications of iPosi's GPS based loss-profiling
technology. The earlier collaboration led to field
validation of new tomographic wireless propagation
measurements that enable sharing between new 5G and
DoD in common 1-10 GHz mid-band spectrum blocks.
How This Technology Supports
Spectrum Sharing
The iPosi loss-profile
technology automates measurements of GPS/GNSS
controlled satellite signal transmissions. Once
compiled, these form precise intelligent arrays
ultimately characterized as an intensity-based 3D
loss-contour map. As satellites move across the sky,
their signals illuminate radio path obstructions
precisely. The 3D map is specific to each site
sharing the channel. Each
loss-map determines the extent of shared channel
radio isolation with a low-error loss between
wireless entities, and continuously updates to
maintain interference-free channels. Though applied
initially to sharing DOD ground-to-air systems with
commercial wireless services, this has wide
applications for other 5G services.
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