OSNMA+

Position, Velocity and Time (PVT) based on GNSS, and in particular on Galileo, is used by many critical applications in several factors such as transportation, finance, telecommunications, information technology, energy, utilities, manufacturing, health services, emergency services, defense and law enforcement. However, accessibility to spoofing and jamming and relevant knowledge is increasing, resulting in disruption or denial incidents being more frequently observed. 

The Galileo Open Service Navigation Message Authentication (OSNMA) comes to aid as it provides a data authentication function for Galileo Open Service global users, freely accessible to all. OSNMA provides receivers with the assurance that the received Galileo navigation message is coming from the system itself and has not been modified. 

Within this framework, addressing the needs of the market and the related user communities, the OSNMA+ project supported the development of an OSNMA receiver and service able to target several market applications, from consumer applications to critical infrastructure. 

The OSNMA+ project aimed at the development of enhanced user terminals, targeting key market segments such as consumer solutions, road transportation and automotive, critical infrastructure (timing), and drones. As a result, the following was delivered:

• OSNMA+ receiver, which targets all applications requiring secure and robust positioning 
• OSNMA+ application software and OSNMA+ service, which targets all existing applications that do not desire to modify the hardware but aim to advance OSNMA services as well as smartphones and consumer applications that do not use GNSS data from satellites 

Challenge and technical solution

The solution proposes a more robust use of the OSNMA service and of the new I/NAV data. In particular:

• The OSNMA+ receiver targets the most demanding levels of security, availability, accuracy and connectivity leveraging an ecosystem of technologies, where GNSS has a primary role with the support of PNT data to the user, and information assurance is achieved with multiple positioning services and sensors.
• The OSNMA+ application software supports applications or the use of connected services
• The OSNMA+ service supporting OSNMA service specifically for smartphones and consumer products.