Defining measures for the successful implementation of 3GPP-based automotive satellite connectivity

The 5G Automotive Association (5GAA) is pleased to release its new Technical Report “Defining measures for successful implementation of 3GPP-based automotive satellite connectivity”

This report analyses the technical, commercial and architectural challenges of automotive satellite connectivity and evaluates realistic deployment pathways. The study confirms that future automotive NTN demand will vary significantly by use case. Safety and resilience applications such as emergency calls, hazard warnings and disaster management generate relatively low traffic volumes and can already be supported by Narrowband Internet of Things (NB-IoT) satellite systems. In contrast, future services such as high-definition (HD) map distribution, cloud gaming, teleoperated driving, video communication, and advanced remote operations require orders of magnitude more bandwidth and will depend on wideband and broadband NTN solutions.

The report also demonstrates that future NTN business models will initially be driven by safety, resilience and coverage-extension use cases. OEMs expect narrowband and wideband satellite capabilities to become embedded vehicle functions, while broadband services are more likely to be introduced as premium or optional features. Survey results also show that emergency services, hazard warnings and vehicle safety functions consistently rank highest in perceived customer value and criticality.

Perhaps the most important evidence comes from the various live demonstrations conducted by 5GAA members. These demonstrations successfully validated emergency messaging, hazard warnings, NTN-based eCall concepts, NTN/TN switching, satellite assisted voice services, and NR-NTN-based broadband applications. Collectively, they prove that 3GPP-based satellite communications have moved beyond theoretical feasibility and are now capable of delivering real automotive services. However, the demonstrations also confirmed current limitations, including uplink latencies of several seconds, strong dependence on GNSS availability, and the challenges associated with GEO-based narrowband systems.