摘要
NB-IoT(窄带物联网)是3GPP R13中引入的蜂窝物联网技术,具有广覆盖、低成本、大容量、低功耗的系统特性。基于空中接口和物理层基本过程的角度,通过研究NB-IoT上下行物理信道主要的结构、配置和功能,阐述了已完成标准化的NB-IoT物理层基本设计方案,从而更好地了解NB-IoT物理层是如何匹配系统设计目标的,有助于进一步研究把握NB-IoT技术的发展方向。
NB-IoT(Narrow Band-Internet of Things)is a cellular-based IoT technology introduced in3GPP Release13,characterized by its wide signal coverage,low terminal cost,large capacity and low power consumption.Based on the air interface and basic process of physical layer,the standardized basic design of NB-IoT physical layer is discussed via the study of the structure,configuration and function of DL/UL physical channel in NB-IoT,thus to make a better understanding of how the NB-IoT physical layer to match design objectives of the system,and this would be of help for further study and grasp the development direction of NB-IoT technology.
作者
蒙文川
MENG Wen-chuan(Guigang Branch, China Mobile Communications Corporation Guangxi Co., Ltd., Guigang Guangxi 537100, China)
出处
《通信技术》
2017年第12期2745-2749,共5页
Communications Technology
