Enhanced Reliability and Availability of Services
GNSS (Global Navigation Satellite System) is synonymous with Position, Navigation and Time. We put GPS receivers everywhere, expecting that they will work well for emerging applications and services such as Public Safety, Autonomous Vehicles and 5G.
But, is GNSS alone good enough?
GNSS is an adequate source of timing if satellite signals are available.
- GNSS-signals are vulnerable to several natural and unnatural disruptive forces
- Loss of GNSS signals in urban canyons, underground subways and parking lots
- May be unreliable or unavailable due to signal jamming and/or spoofing
- Atmospheric changes and multipath effects often render GNSS signals unusable
Key Requirements in Emerging Applications
When augmented with PTP, GNSS provides improved synchronization resiliency and avaiability of services
- Sync traceability to a common source (grandmaster) within a network segment allows for foolproof audits of network services
- Network latency monitoring
- PTP provides enhanced holdover (4 to 8 hours or longer) and robust clock performance with TCXO (10x cost savings compared to OCXO)
- Faster GNSS satellite acquisition after a momentary loss of GNSS (requires special receiver)
Additional Sources of Synchronization
- A grandmaster that works with GNSS and non-GNSS satellite systems (such as Low Earth Orbit systems) provides additional synchronization resilience.
- Ability to detect GNSS jamming events and provide critical alerts to service personnel
- Qulsar’s Qg 2 Multi-Sync Edge Gateway uses GNSS and non-GNSS encrypted signals to provide unprecedented resilience to GNSS vulnerabilities
Qulsar’s products ensure resilience and availability of critical services
- Qg 2 Multi-Sync Gateway provides GNSS and non-GNSS synchronized time
- M6X/M88 timing modules and QNgine software are easily integrated into network equipment for cost-effective sync delivery and network latency monitoring solutions