<p>Narrowband IoT (NB-IoT) is a wireless internet of things (<a href="https://www.techtarget.com/iotagenda/definition/Internet-of-Things-IoT"&gt;IoT&lt;/a>) standard that uses low-power wide area network (<a href="https://www.techtarget.com/iotagenda/definition/LPWAN-low-power-wide-area-network"&gt;LPWAN&lt;/a>) technology. It was developed by the 3rd Generation Partnership Project (3GPP) for connecting IoT devices to established mobile networks. NB-IoT is one of the three main