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NB-IoT网络覆盖性能评估与优化 被引量:3

NB-IoT network coverage performance evaluation and optimization
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摘要 NB-IoT由于其功率谱密度、重传的技术特点,可实现较GSM系统20dB的覆盖增强能力,但是相应的终端芯片能力弱、单天线设置以及窄带宽设置,导致其抗干扰能力较差。本文主要阐述NB-IoT网络覆盖性能的评估及优化方法,针对现网发现的弱覆盖、重叠覆盖现象给出功率优化,异频组网以及干扰规避的解决方案。 Due to its power spectral density and retransmission technology, NB-IoT can achieve 20 d B coverage enhancement over GSM systems. However, the weak terminal chip capabilities, single-antenna configuration, and narrow bandwidth settings result in poor anti-interference capability. This article mainly describes the evaluation and optimization methods of NB-IoT network coverage performance. For the weak coverage and overlapping coverage found on the existing network, power optimization, inter-frequency networking, and interference avoidance solutions are provided.
作者 周红岗 郭宝 张阳 ZHOU Hong-gang;GUO Bao;ZHANG Yang(China Mobile Group Shanxi Co.,Ltd.,Taiyuan 030032,China;China Mobile Group Co.,Ltd.,Beijing 100033,China)
出处 《电信工程技术与标准化》 2018年第6期1-5,共5页 Telecom Engineering Technics and Standardization
关键词 重叠覆盖 异频组网 NB-IoT overlapping coverage inter-frequency networking NB-IoT
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