Our products > Wireless solutions ​> Velocite 

Velocite™

A novel, proven technology using commercial 4G / 5G to provide affordable telemetry to high-speed aircraft

Military and commercial aircraft use sophisticated aeronautical mobile telemetry (AMT) services for monitoring and transmitting data collected on board during flight testing and to evaluate performance and ensure pilot safety. The technology traditionally employs a band of dedicated radio frequency (RF) spectrum for communications. 
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With the explosive growth in mobile communications, demand for RF spectrum is accelerating worldwide. At the same time, AMT has increasing need for bandwidth to deliver massive amounts of test data generated from highly sophisticated modern aircraft and to take advantage of emerging opportunities for enhanced predictive maintenance applications and cost-savings advances in live, virtual, constructive (LVC) training.   ​
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Why it's needed

​Velocite is a revolutionary solution that leverages commercial 4G and 5G LTE infrastructure to deliver bidirectional air ground communications in any frequency band and at speeds well above Mach 1. Velocite provides seamless, secure communications at long distances and delivers sophisticated, high-bandwidth, real-time communications for flight testing, training and operations. It also supports offload of aircraft maintenance, telemetry and mission data while in flight and it enables real-time, virtualized services for aircraft safety, predictive maintenance, LVC training and mission readiness. 

Unlike current AMT systems that can only handle one test mission at a time, Velocite enables multiple simultaneous test missions conducted over high-bandwidth commercial equipment from any vendor with considerable time and cost savings. Velocite is a patented, proven solution which has been successfully demonstrated in flight testing at Edwards Air Force Base. 

Velocite can be utilized by military and commercial users in a variety of aerospace applications including: 
  • High-bandwidth AMT services on test and training ranges (domestic and international) used by military, safety, rescue and law enforcement agencies 
  • Airport service providers furnishing communications in an airfield’s airspace and on the ground 
  • Small and medium-sized companies in air and space that do not own spectrum and require communications 
  • Aircraft manufacturers and suppliers supplying data to support just-in-time maintenance and improve timeliness, efficiency and supply chain workflow   
  • Emerging applications using on-board virtualization for advances in LVC training that improve mission readiness at lower cost 
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How it works

Velocite combines an intelligent LTE network design with groundbreaking innovations to reliably deliver high-bandwidth data communications for test aircraft at speeds of 1,000 kph and above. Velocite’s Doppler compensation applique works with any airborne LTE COTS User Equipment (UE). It automatically and intelligently resolves the challenges due to Doppler shift on the mobile transceiver to deliver assured, high-speed air ground communications for any LTE-compliant equipment and without any modifications to the LTE radio access or core network.   

The appliqué performs high-speed Doppler estimation and real-time frequency compensation functions to synchronize the test aircraft’s LTE transceiver in both radio directions with any desired LTE base station and maintain a robust data link. The Velocite appliqué substantially extends the standard LTE mobility limit of 350 kph to fighter jet speed, providing real-time processing to keep up with LTE signaling on board the airborne unit. It also incorporates frequency translation and a high-power radio frequency (RF) amplifier for large area coverage.  

The Velocite network design provides 3D coverage with connection to multiple cells available at most points in the airspace. This provides redundant and reliable coverage for a full duplex radio link, for both base station (eNB) and UE to deliver a nominal 20 megabits per second throughput per link over a large part of the covered airspace.  

The Velocite unit can be augmented by a ground-based integrated cellular network control capability (ICNC) which seamlessly takes control of cell-to-cell handovers at LTE base stations when needed. ICNC is a sophisticated management component that collects real-time power, location and timing data, and utilizes advanced analytics to estimate aircraft trajectory and cell signal quality. 

Velocite also includes easy to use radio frequency planning tools to support test range operators with 3D coverage analysis and flight trajectory coverage predictions. The ICNC visualization tools are used for supervision of network operation and real-time situational awareness of test status.  

Doppler compensation appliqué

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Features

  • ​A single Velocite airframe-installed transceiver supports full duplex IP-based connectivity whether the aircraft is in the air, on the ground, taxiing, refueling, or in the hangar 
  • Delivers secure, high-bandwidth communications at any aircraft speed while airborne and within a 100km range from the landing area, with peak data rates above 1Gbps  
  • Multi-SIM capability for multiple networks can connect with any private or commercial 5G service to support aircraft conducting operations at multiple bases or ranges 
  • The Velocite transceiver leverages automatic network discovery and configuration to identify the ground network and automatically choose an appropriate channel if many are available  
  • Supports native automatic sharing of network resources with other aircraft in the coverage area via automatic apportionment of resource (frequency and time) to maintain fair access to wireless resources for each aircraft
  • Easy to use radio frequency planning tools to support test range operators with 3D coverage analysis and flight trajectory coverage predictions  
  • Easy to operate with minimal oversight needed from test range ground teams 
  • A future-proof solution with easy, native support for perpetual future standards releases implemented into UE to interwork with the separate bolt-on Doppler compensation appliqué   
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Advantages

  • Successfully demonstrated in field demonstrations at Edwards Air Force Base 
  • Cost-effective and RF spectrum-efficient 
  • Leverages unmodified existing commercial equipment  
  • Enables multiple simultaneous tests with almost no spectrum coordination 
  • Requires only a small fraction of AMT spectrum 
  • Operational in all testing range RF bands and at flexible bandwidths, on demand 
  • Vendor-agnostic solution that can transfer to different vendor platforms to meet custom operational needs 
  • Dynamic automatic assignment of spectrum resources based on data rate and coverage needs  
  • 5G NR ready and upgradeable to future releases due to the flexibility of the appliqué approach 
anchor: Specifications

Specifications

Velocite second-generation transceiver specifications
  • 3GPP TDD and FDD configurations supported, up to 100MHz BW
  • Supports latest LTE & NR releases
  • 1Tx / 2Rx antenna ports
  • Operates in custom L, C, S bands
  • Environmentally hardened to operate in aeronautical environments, with -40 C to +85 C (conduction cooled)
  • Ethernet connection to onboard data sources
  • Integrated RF power amplifier for extended range
  • Power: 28V DC
  • 24 lbs., 9’’x8’’x6’’
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Resources

Research, services and products of interest

Research

  • 5G research: exceptional 5G performance with enhanced security and reliability 
  • Mobility research: advances in dynamic, secure mobile networking for congested and contested environments 

Services

  • CSfC trusted integrator: NSA-designated, proven CSfC trusted integrator with innovative tools for mobile access and campus WLAN deployments
  • Electronic warfare services: analysis, prototyping, fabrication and custom dynamic laboratories for rigorous evaluation of EW technology before fielding

Products

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