Introduction
Bimonthly, started in 1957
Administrator
Shanxi Provincial Education Department
Sponsor
Taiyuan University of Technology
Publisher
Ed. Office of Journal of TYUT
Editor-in-Chief
SUN Hongbin
ISSN: 1007-9432
CN: 14-1220/N
Administrator
Shanxi Provincial Education Department
Sponsor
Taiyuan University of Technology
Publisher
Ed. Office of Journal of TYUT
Editor-in-Chief
SUN Hongbin
ISSN: 1007-9432
CN: 14-1220/N
location: home > paper >
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Evaluation and Optimization of Multi-service Complex NetworkCoverage Based on NB-IoT
DOI:
10.16355/j.cnki.issn1007-9432tyut.2019.05.021
Received:
Accepted:
| Corresponding author | Institute | |
| WEI Hongjing | China Mobile Group Shanxi Co.,Ltd,Taiyuan 030032,China |
abstract:
NB-IoT(Narrow Band Internet of Things)is China Mobile's main technology for future IoT development.Good network coverage quality and low power consumption design are its competitive advantages in the future.However,there are bottlenecks in NB-IoT,such as serious overlapping coverage,large local coverage,and insufficient indoor coverage.In view of the above problems,this paper proposed an evaluation and optimization method based on NB-IoT multi-service complex network coverage.According to the feature differences of the four types of service of NB-IoT,the content of service coverage,repeatability and redundancy were investigated.In-depth research was conducted on a large number of tests and business simulation,KPI,and coverage standards.Finally,for different sites and different problem objects,the research realized the optimization of indoor upgrade,total antenna optimization,low-cost NG splitting and terminal extension.It lays the foundation for the Internet of Things to achieve low-speed,low-cost,low-power,wide-depth coverage,and large connectivity needs of NB-IoT.
Keywords:
narrow band internet of things;overlapping coverage;common antenna;KPI