摘要
NB-IoT是由3GPP定义的基于蜂窝网络的窄带物联网技术。首先,简单介绍了SA和IB两种NB-IoT的主要工作模式。然后,分别研究了两种工作模式的覆盖、速率和时延性能,指出了现阶段NB-IoT上行自适应传输方案对于上行底噪抬升较敏感等问题。最后,对比了SA和IB两种工作模式的性能,给出了在NB-IoT规划建设工作中值得思考的问题与参数配置建议。
NB-IoT is a narrow band networking technology based on cellular networks defined by 3 GPP. First of all,the main work patterns of two kinds of NB-IoT were briefly introduced,such as SA and IB. Then,the coverage,rate and delay performance of the two modes of work were studied. It was worth explained that NB-IoT uplink adaptive transmission scheme could be more sensitive to noise. Finally,the performance of the two working modes of SA and IB was compared,as well as some suggestions on the problem and parameter configuration in the NB-IoT planning and construction work could be given.
出处
《电信科学》
2018年第S1期111-117,共7页
Telecommunications Science
