Fecha de publicación: 03/07/2020 Fuente: Wipo "IOT" The invention relates to the technical field of NB-IoT networks. The invention relates to the technical field of wireless communication, in particular to a power-saving NB-IoT chip, a power-saving NB-IoT device and a power-saving NB-IoT method, the power-saving NB-IoT device comprises a processor with a plurality of cores, and further comprises a protocol stack and a physical layer which run on the processor, and the power-saving NB-IoT device is characterized in that the protocol stack and the physical layer respectively run on different cores of the processor. The NB-IoT power saving methodis based on the device. The method comprises the following steps that in a data processing task needing to be jointly processed by a physical layer and a protocol stack, the physical layer independently processes and analyzes data after receiving the data, whether the data need to be submitted to the protocol stack for processing or not is judged, if yes, a core where the protocol stack is locatedis awakened, the data are submitted, and if not, the protocol stack is not awakened. Wherein the data processing task comprises one or more of paging information processing, measurement reselection processing and hybrid retransmission processing. According to the power-saving NB-IoT chip, the power-saving NB-IoT device and the NB-IoT power-saving method, the power consumption of NB-IoT equipmentcan be reduced, and the endurance of the equipment can be improved.