u-blox, a global provider of advanced positioning and wireless communication technologies, has introduced its first IoT module that integrates both 3GPP-compliant terrestrial networks (TN) and non-terrestrial networks (NTN). The new module, SARA-S528NM10, represents a significant advancement in satellite IoT, offering global coverage with precise, low-power, and concurrent positioning—ideal for applications requiring continuous or cyclic asset tracking and monitoring. Other potential uses include aftermarket telematics, industrial monitoring and control, smart metering, utilities, and fleet management.
With traditional cellular networks covering just 10% of the planet, the need for reliable global connectivity has become more pressing, especially for IoT applications in remote or maritime areas. While satellite IoT can fill this gap, its wider adoption has been hindered by the high costs of satellite terminals, energy consumption, and airtime fees.
Nonetheless, ABI Research forecasts that the satellite IoT market will exceed USD 4 billion by 2030. Current solutions often rely on proprietary hardware, which ties users to a specific satellite operator. In contrast, u-blox’s solution is built on global 3GPP standards, enabling interoperability with multiple satellite providers, giving customers more flexibility and choice.
“The new u-blox satellite IoT-NTN cellular module is designed to maintain connectivity in areas without cellular coverage,” said Stephan Zizala, CEO, u-blox. “The integrated u-blox GNSS solution consumes less than 15mW of power in continuous tracking mode and has high RF sensitivity that reduces the time required to establish a position fix. It provides concurrent location data without interrupting the cellular or satellite connection, which further helps to minimise power consumption due to the shortened active time of the device.”
Powered by the u-blox UBX-S52 cellular/satellite chipset and GNSS M10 platform, the module complies with the 3GPP Rel 17 NB-NTN specification. This ensures extended connectivity through LTE-M and NB-IoT on terrestrial cellular networks and NB-IoT via geostationary orbit (GEO) satellite constellations, with future readiness for low-Earth orbit (LEO) satellites. The UBX-S52 chipset is currently undergoing certification with Skylo, a global NTN service provider, to ensure seamless compatibility with both cellular and satellite networks, enhancing reliability and resource efficiency.
The SARA-S528NM10 module supports three NTN bands: n23 (United States), n255 (L-band global), and n256 (S-band Europe), ensuring its future-proof credentials. Additionally, it is pin-compatible with other u-blox cellular-only modules within the SARA range, allowing engineers to scale up IoT solutions without costly redesigns, ensuring a smoother transition to advanced technology.
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