物联网学报 ›› 2023, Vol. 7 ›› Issue (3): 95-102.doi: 10.11959/j.issn.2096-3750.2023.00342

• 专题:短距无线通信技术 • 上一篇    

5G多站定位精度分析与提升方法

赵飞龙1,2, 王丽莉1,2   

  1. 1 中国移动通信集团海南有限公司,海南 海口 571250
    2 新一代移动信息通信技术国家工程研究中心海南自贸港分中心,海南 海口 571250
  • 修回日期:2023-04-18 出版日期:2023-09-01 发布日期:2023-09-01
  • 作者简介:赵飞龙(1977- ),男,博士,中国移动通信集团海南有限公司正高级工程师,主要研究方向为电磁波传播及其应用、移动通信、算力网络
    王丽莉(1976- ),女,中国移动通信集团海南有限公司高级工程师,主要研究方向为网络安全、算力网络、人工智能
  • 基金资助:
    国家重点研发计划(2022YFB3900011)

Multi-station positioning accuracy and enhancement method for 5G

Feilong ZHAO1,2, Lili WANG1,2   

  1. 1 China Mobile Group Hainan Co., Ltd., Haikou 571250, China
    2 National Engineering Research Center for New Generation Mobile Information and Communication Technology Hainan Branch, Haikou 571250, China
  • Revised:2023-04-18 Online:2023-09-01 Published:2023-09-01
  • Supported by:
    The National Key Research and Development Program of China(2022YFB3900011)

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克拉默-拉奥下界(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 were 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.

Key words: 5G, RAT-dependent positioning, positioning accuracy

中图分类号: 

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