In June 2018, T-Mobile worked with Ericsson and other partners, to deploy NB-IoT nationwide. NB-IoT, based on the 3GPP standard, is a low power, wide area network (LPWAN) LTE-Advanced technology that provides a pathway to 5G IoT and offers many benefits like low power usage, long battery life and low device cost. By lighting up NB-IoT in the guard bands – the network equivalent of driving down the shoulders on the highway – T-Mobile can utilize precious spectrum resources most efficiently, and IoT applications don’t have to compete with other data traffic for network resources.



The OMA Lightweight M2M 1.1 standard (LwM2M 1.1) supports managing a broad spectrum of IoT devices including devices operating in LPWAN  networks. LwM2M provides device management and service enablement capabilities for managing the entire lifecycle of the IoT device. LwM2M 1.1 adds support for a Non-IP transport binding. It also introduces more efficient data formats, optimized message exchanges and support for application layer security based on IETF OSCORE. These new LwM2M 1.1 features can significantly improve the performance and security of Non-IP devices in lossy and low bandwidth networks such as NB-IoT.

This white paper discusses the capabilities introduced in LwM2M 1.1 for managing non-IP devices in Cellular IoT networks, specifically Non-IP Data Delivery (NIDD) in NB-IoT leveraging the 3GPP Service Capability Exposure Function (SCEF) node. It highlights the key LwM2M 1.1 features that are relevant in NB-IoT and provides guidance on addressing the unique challenges for managing IoT devices in NB-IoT.

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