5G LTE Narrowband Internet of Things (NB-IoT)
Published: January 22, 2026
Duration: 17:43
Focuses on the technical specifications and applications of Narrowband Internet of Things (NB-IoT) within 5G LTE cellular networks. The text explains the underlying protocol stack and architecture of NB-IoT, detailing layers such as the Radio Resource Control (RRC) sublayer, Packet Data Convergence Protocol (PDCP) sublayer, Radio Link Control (RLC) sublayer, Medium Access Control (MAC) sublayer, and Physical (PHY) sublayer. It explores key operational aspects including RRC modes (IDLE and CONNECTED), data transfer mechanisms, power saving modes (PSM), and quality of service (QoS) for NB-IoT devices. Furthermore, the source outlines various applications and use cases for NB-IoT, such as smart...