Key Bridge Wireless LLC Completes Phase 1 of DoD Dynamic Spectrum Sharing 5G Prototype Project

McLean, VA – May 2, 2022 – Key Bridge Wireless LLC, a pioneer in spectrum management and wireless solutions, today announced the successful completion of Phase 1 for Project NSC-20-2093, the Dynamic Spectrum Sharing 5G Applications Prototype, funded by the Department of Defense (DoD) through the National Spectrum Consortium (NSC).

Phase 1 focused on developing and maturing a prototype Spectrum Coexistence and Sharing (SCS) system to enable seamless operation between airborne radar systems and 5G cellular networks in the 3.1-3.45 GHz band. Key accomplishments include:

Adapting Environmental Sensing Capability (ESC) technology, proven in the CBRS band, to the 3.1 GHz spectrum, with laboratory testing demonstrating reliable detection of high-power radar pulses up to 1 GW EIRP.
Successful modeling and detection of airborne radar platforms, such as AWACS, through advanced simulations and metrics evaluating detection accuracy under various conditions, including noise and 5G interference.
Progress in miniaturizing and optimizing the Spectrum Access System (SAS) for integration as a real-time scheduler controlling a commercial Nokia 5G Radio Access Network (RAN), leveraging open industry standards for interoperability.
Employing machine learning techniques to train neural networks on generated signal libraries for efficient radar pulse detection and parameter estimation, utilizing specialized hardware like GPU servers and Jetson development boards.

Conducted in collaboration with Nokia and stakeholders from the Air Force Research Laboratory (AFRL) and Naval Information Warfare Center (NIWC), this phase establishes a robust foundation for field demonstrations at Hill Air Force Base and the Utah Test and Training Range.

"This completion of Phase 1 validates our innovative approach to dynamic spectrum sharing, critical for maintaining DoD operational superiority while advancing 5G capabilities," said Jesse Caulfield, CEO of Key Bridge Wireless LLC. "By extending ESC and SAS technologies to new bands and integrating advanced AI, we're proving scalable solutions for contested spectrum environments."

The project aligns with the DoD's "5G – Next G" initiative, emphasizing detect-and-avoid strategies to mitigate interference without compromising mission-critical systems.

For more information, visit www.keybridgewireless.com or contact info@keybridgewireless.com.

About Key Bridge Wireless LLC: Key Bridge Wireless LLC specializes in spectrum management, wireless engineering, and regulatory compliance, delivering cutting-edge technologies to optimize spectrum utilization for government and commercial clients.