Narrowband IoT (NB-IoT) is a new fast-growing wireless technology 3GPP cellular technology standard introduced in Release 13 that addresses the LPWAN (Low Power Wide Area Network) requirements of the IoT.
It's been classified as a 5G technology, standardised by 3GPP in 2016.
It is fast emerging as the best in class-leading LPWAN technology to enable a wide range of new IIoT devices, including smart parking, utilities, wearables, and industrial solutions.
NB-IoT is characterised by:
excellent indoor coverage,
support of a massive number of connections,
low device power consumption,
optimised network architecture.