摘要
随着NB-IoT的迅速发展,势必面临NB-IoT与现有多种系统邻频共存的问题。这就需要对NB-IoT与现有系统间相互干扰的问题进行充分的考虑与分析,使得NB-IoT系统商用部署时系统间相互干扰所引起的性能损失合理。文中研究了Stand-alone NB-IoT与LTE/UMTS/GSM共存分析、In-band NB-IoT与LTE共存分析、Guard-band NB-IoT与LTE共存分析以及LTE干扰下NPUSCH的性能情况。仿真结果表明了NB-IoT系统可以与LTE等系统共存时NB-IoT BS ACS与UE ACLR所处的范围。
With the rapid development of NB-IoT,it is bound to the adjacent frequency coexistence problem between NB-IoT and other multi-existing systems. Thus,it is necessary to analyze and consider themutual interference problem between the NB-IoT and the existing systems,making the performance losscaused by mutual interference among the systems in the commercial deployment of the NB-IoT system bereasonable. This paper studies the coexistence analysis between the Stand-alone NB-IoT and LTE/UMTS/GSM,the coexistence analysis between the In-band NB-IoT and LTE,the coexistence analysis between theGuard-band NB-IoT and LTE,and the performance of NPUSCH on LTE interference. Simulation resultsshow that NB-IoT BS ACS and UE ACLR are within the range when NB-IoT system coexists with LTE sys-tem.
作者
李贵勇
杨艳娟
邢苹苹
李安艺
LI Guiyong;YANG Yanjuan;XING Pingping;LI Anyi(Chengqing Key Lab of Mobile Communications,Chongqing University of Posts and Telecommunications,Chongqing 400065,China)
出处
《南京邮电大学学报（自然科学版）》
北大核心
2018年第6期19-23,共5页
Journal of Nanjing University of Posts and Telecommunications：Natural Science Edition
基金
国家科技重大专项(2017ZX03001021-004)资助项目
关键词
窄带物联网
性能
干扰
共存
NB-IoT
performance
interference
coexistence
作者简介
通讯作者:李贵勇(1971-),男,正高级工程师,四川简阳人。重庆邮电大学重庆市移动通信技术重点实验室正高级工程师。研究方向:无线通信的高层协议。E-mail:2326684160@qq.com.
