Huawei provides an NB-IoT end-to-end (E2E) solution with multiple open capabilities to support fast application integration for partners. Huawei also provides NB-IoT chips of Hisilicon, eNodeBs, and OceanConnect. Developers can develop terminals based on chip/module development manuals provided by terminal vendors and develop applications based on the IoT platform. The following figure shows the NB-IoT E2E networking architecture.
● NB-IoT terminal/UE
NB-IoT terminals/UEs, such as smart water meters and gas meters, are connected to an eNodeB over the Uu interface.
An eNodeB controls network access over the Uu interface, manages cells, and forwards non-access stratum (NAS) data to upper-layer NEs. An eNodeB is connected to the IoT core over the S1-lite interface.
● IoT core
An IoT core exchanges information with NB-IoT terminals at the NAS layer and forwards data related to NB-IoT services to the IoT platform.
● IoT Platform
The IoT platform converges IoT data from various access networks and then forwards such data to a required service application for processing based on the data type. The SoftRadio can be interconnected only with Huawei OceanConnect.
● Application server
An application server is the destination of IoT data and processes data in compliance with customer requirements.