Summary of U-BLOX ANNOUNCES NB-IOT MODULE READY FOR 3GPP REL 14 AND 5G
u-blox introduced the SARA-N3, a multi-band NB-IoT module supporting 3GPP Release 14 features. Available in China-specific and global variants, it enables remote firmware updates via uFOTA and LwM2M for future 5G compliance. Optimized for low power, it supports various protocols like MQTT and CoAP, ensuring long battery life and security against attacks. Its robust manufacturing guarantees high reliability for diverse IoT applications.
Parts used in the SARA-N3:
- SARA-N3 Module (China Variant)
- SARA-N3 Module (Global Variant)
- u-blox Firmware-over-the-air (uFOTA) Client/Server Solution
- Lightweight M2M (LwM2M) Protocol
- TCP Protocol
- HTTPS Protocol
- CoAP Protocol
- DTLS Protocol
- MQTT Protocol
u-blox, a global provider of leading positioning and wireless communication technologies, has announced the SARA-N3, a multi-band NB-IoT module that supports a preliminary set of 3GPP Release 14 features (LTE Cat NB2). The SARA-N3 is available in two variants: one dedicated to China and another that can operate across multiple bands on any NB-IoT network globally.
The u-blox firmware-over-the-air (uFOTA) client/server solution with Lightweight M2M (LwM2M) allows SARA-N3 to be remotely provisioned with additional features. LwM2M is a more lightweight solution as compared to OMA-DM and thereby ideal for providing critical firmware updates to IoT devices. In this way, SARA-N3 can ultimately become 5G compliant. SARA-N3 also supports the creation of dynamic LwM2M objects, giving customers high levels of feature customization through the ability to script their own configurable objects.
With its feature-rich capabilities, the SARA-N3 enables the development of one device across multiple regions for a wide variety of IoT/IIoT applications such as metering, smart city smart city systems, smart homes and industrial trackers,
says Samuele Falcomer, Senior Product Manager, Product Center Cellular at u-blox.
For customers currently using other methods to send IoT/IIoT data, such as legacy cellular technology, it is simple to upgrade to SARA-N3 through u-blox nested design and the new features introduced. The product is future-proof, as it can receive further firmware upgrades over the air.
The SARA-N3 provides a comprehensive set of features and protocols that NB-IoT-based applications will benefit from, including TCP, HTTPS, CoAP, DTLS and MQTT. With its ultra-low power consumption profile and the ability to configure voltage domains, the module is optimized to operate on a single cell primary battery for 10+ years, eliminating the need for frequent maintenance visits. Other features include a ‘last gasp’ function that lets the module send one last message should the power fail unexpectedly and protection against software attacks by detecting potential jamming signals.
u-blox manufactures according to ISO/TS16949 professional grade specifications. This approach incorporates 100% automated x-ray and optical inspections, 100% outgoing test and product traceability. Together with failure analysis and product qualification criteria ensures that highly reliable products designed for long-term operation are created.
- What is the primary function of the SARA-N3?
The SARA-N3 is a multi-band NB-IoT module designed for IoT and IIoT applications. - Can the SARA-N3 be upgraded to support 5G?
Yes, the module can become 5G compliant through remote firmware upgrades over the air. - How does the SARA-N3 handle remote provisioning?
It uses the uFOTA client/server solution with Lightweight M2M for remote feature provisioning. - What is the expected battery life of the SARA-N3?
The module is optimized to operate on a single cell primary battery for over 10 years. - Does the SARA-N3 offer protection against software attacks?
Yes, it includes protection against software attacks by detecting potential jamming signals. - What happens if power fails unexpectedly on the SARA-N3?
The last gasp function allows the module to send one final message before power loss. - Are there specific variants available for different regions?
Yes, there is a variant dedicated to China and another that operates globally across multiple bands. - Which communication protocols does the SARA-N3 support?
It supports TCP, HTTPS, CoAP, DTLS, and MQTT.

