- Viasat automotive satellite voice call debuts in BMW vehicles.
- Satellite connectivity improves communication beyond mobile network coverage.
Viasat has successfully demonstrated the first automotive satellite voice call that is fully integrated into a BMW Group vehicle platform. Announced on July 16, the milestone introduces Non-Terrestrial Network (NTN) communications to connected vehicles, enabling drivers and passengers to place voice calls even in locations where conventional mobile network coverage is unavailable or unreliable. The achievement represents an important advancement in extending vehicle connectivity beyond terrestrial cellular infrastructure while supporting continuous communication in remote environments.
How the Automotive Satellite Voice Call Works
The demonstration combined several technologies to enable satellite-based voice communication directly through the vehicle platform. It utilized Cubic's eSIM technology, Qualcomm's Snapdragon Auto 5G Modem-RF Gen 2, and Fraunhofer IIS NESC AI voice codec to transmit voice calls across Viasat's L-band satellite network using the NB-IoT protocol. Unlike external communication devices, the solution was integrated into the in-vehicle interface, allowing occupants to make voice calls using the vehicle's native communication system.
Key Technologies Used in the Demonstration
| Technology | Role |
|---|---|
| Cubic eSIM | Provides embedded connectivity support |
| Qualcomm Snapdragon Auto 5G Modem-RF Gen 2 | Enables automotive communication processing |
| Fraunhofer IIS NESC AI Voice Codec | Processes voice transmission efficiently |
| Viasat L-band Satellite Network | Delivers satellite communication coverage |
| NB-IoT Protocol | Supports satellite communication using 3GPP standards |
Benefits for Connected Vehicle Safety
By integrating satellite voice capability directly into the vehicle platform, the solution helps maintain communication when cellular networks are unavailable. This capability can support emergency response, roadside assistance, and other safety-related services for drivers traveling through isolated regions. Direct integration within the vehicle interface also provides a seamless user experience without requiring additional hardware or separate communication devices.
Industry Collaboration and Future Development
Viasat, BMW Group, Cubic, and Fraunhofer IIS are all members of the 5G Automotive Association (5GAA), supporting industry collaboration on connected mobility technologies. The current demonstration relies on the NB-IoT protocol built on global 3GPP standards. Looking ahead, future 5G-New Radio (5G-NR) satellite technology is expected to enable higher-bandwidth services such as video streaming while allowing seamless transitions between terrestrial mobile networks and satellite connectivity.
Frequently Asked Questions
What is the significance of Viasat's automotive satellite voice call demonstration?
The demonstration marks the first time an automotive satellite voice call has been fully integrated into a BMW Group vehicle platform using Non-Terrestrial Network technology. It enables voice communication through satellite connectivity in areas without conventional mobile coverage by combining Viasat's satellite network, Cubic's eSIM, Qualcomm's modem platform, and Fraunhofer IIS voice codec. The technology is designed to improve connected vehicle communication and support emergency and safety services in remote locations while providing a seamless in-vehicle user experience.
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