第五代移动通信网络多站定位精度分析与提升方法

摘要/Abstract

摘要： RAT-dependent 是 5G 自带的不依赖卫星的定位技术。3GPP 给出了单站理想条件下的定位精度CRLB（CRLB, Cramer-Rao lower bound）并给出了多站在不同网络配置下的仿真定位精度。基于实际组网条件提出了多站定位精度的分析框架和精度范围，并提出相应的提升方法，实验结果表明，RAT-dependent 定位精度与组网技术紧密相关，优化方案相对于非优化方案定位精度可提升 20%～30%。

关键词: 5G, RAT-dependent 定位, 定位精度

Abstract: RAT-dependent is a satellite independent positioning technology of 5G. 3GPP gives the Cramer-Rao lower bound (CRLB) of the positioning accuracy under the ideal condition of a single station and the simulation positioning accuracy of multi-station under different network configurations. Based on the actual network conditions, the analysis framework, accuracy range of multi-station positioning accuracy and the corresponding improvement method are proposed. The experimental results show that the RAT-dependent positioning accuracy is closely related to network technologies, and the positioning accuracy of the optimized scheme can be improved by 20%～30% compared with the non-optimized scheme.

赵飞龙, 王丽莉. 第五代移动通信网络多站定位精度分析与提升方法[J]. 物联网学报.

ZHAO Feilong, WANG Lili. Multi-station RAT-dependent positioning accuracy and enhancement method for 5th generation mobile communication network[J]. Chinese Journal on Internet of Things.

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