Narrow Band Internet of Things concept and role Narrow Band Internet of Things (NB-IoT) is an important branch of the Internet of Everything, also known as Narrowband-IoT. Built on cellular networks, likes Lora, is one of the technologies of Low Power Wide Area Networks (LPWAN), Narrow Band Internet of Things supports long standby times, consumes only about 180kHz of bandwidth, and can be deployed directly on GSM networks, UMTS networks, or LTE networks to reduce deployment costs and enable smooth upgrades. Narrow Band Internet of Things (NB-IoT) requires efficient connectivity for high network connectivity devices. Narrow Band Internet of Things (NB-IoT) devices can increase battery life by at least 10 years, while also providing very comprehensive coverage of indoor cellular data connections.