移动蜂窝物联网演进方案研究

摘要

物联网应用中，低速率业务占比超过了50%。以NB-IoT和LTE-eMTC为代表的低功耗广域蜂窝技术在低功耗、广覆盖业务中扮演着重要角色。对物联网通信技术的分类和演进路线进行了阐述，介绍了NB-IoT和LTE-eMTC 2种典型的蜂窝通信技术的标准进展，最后给出了中国联通物联网的演进策略和蜂窝物联网的部署方案。%More than half of the IoT applications are low data-rate business. Low power wide area(LPWA)cel ular technologies,such as NB-IoT and LTE-eMTC,play an important role in low-power and wide-coverage application. It firstly describes the classifica-tion and the evolution route of IoT communication technology,then introduces the standardization progress of NB-IoT and LTE-eMTC,which are two typical cel ular communication technologies. Final y,it analyzes the IoT evolution strategy of China Unicom and presents the deployment schemes of cel ular IoT.