NB-IoT上行链路速率分析

With the internet of thing market growing rapidly, the low rate applications occupy most of the connections of IoT. However, existing network techniques can\'t match them very well. NB-IoT owning wide coverage, low power, low cost, large connection, stands out from many candidates for low rate applications. Based on the analysis of the characteristics of NB-IoT technology, this paper deeply studies the coverage of NB-IoT by combining the features of uplink (UP) / downlink (DL) frame structure, multiplexing method and scheduling unit used by narrowband IoT (NB-IoT). Firstly, the uplink and downlink rate ability were analyzed .Then, according to the rate requirement, the coverage capability, cell capacity and throughput were quantitatively analyzed and suggestions about the NB-IoT network planning were given.