NB-IoT的重传性能研究

Study on Retransmission Performance of NB-IoT

本文首先介绍了NB-Io T的技术特点及覆盖等级;然后具体介绍了NB-Io T物理层重传的处理过程,分别从NPUSCH和NPUSDH两个不同信道的物理层资源映射举例说明;最后给出在相同参数配置下不同重传次数仿真结果,说明重传对于NB-IOT覆盖性能的影响。

This paper first introduces the technical features and coverage level of NB-Io T,and then introduces the processing process of NB-Io T physical layer retransmission,and illustrates the physical layer resource mapping from two different channels of NPUSCH and NPUSDH respectively. Finally,simulation results of different retransmission times under the same parameter configuration are given to illustrate the effect of retransmission on NB-IOT coverage performance.