| 摘要: |
| 定位构建人与万物和网络之间的时空桥梁，具有巨大的经济和社会价值。移动网络具有大带宽、多天线、高覆盖率等特点，在定位领域具备独特的优势，尤其在卫星信号覆盖不足的区域或多径丰富的场景，可以对卫星定位系统提供重要的补充，实现高精度、高可用性定位。从基于非参数估计和参数估计的移动网络定位关键技术、移动网络定位面临的技术挑战和移动网络定位相关标准等几个方面综述了移动网络定位的研究进展，并对移动网络定位技术趋势给出了展望。 |
| 关键词: 5G 上行定位 下行定位 定位导频 到达时间/到达时间差 到达角度 |
| DOI： |
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| 基金项目:国家科技重大专项（2016ZX03001022）；上海市科委项目（17511106300） |
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| Research Progress in Mobile Network Positioning |
| ZHANG Yi,XU Chang-qing,WAN Qun |
| (Huawei Technologies Co., Ltd., Shanghai 201206, China;School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China;School of Communication & Information Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China) |
| Abstract: |
| Positioning is to build a time and spatial bridge between human and all things to the networks and makes great economic and social value.Typical features of mobile network such as broad bandwidth, multi antennas, and seamless coverage have special advantages in positioning.In scenarios where GNSS signals are weak or multi-paths are very rich, mobile network positioning can play an efficient and important supplementary role, providing high accuracy and accessible location service.This paper summarizes the research progress of mobile network positioning based on the key technologies of non-parametric estimation and parametric estimation, the technical challenges of mobile network positioning and the relevant standards of mobile network positioning, and gives the prospect of the trend of mobile network positioning technology. |
| Key words: 5G Uplink positioning Downlink positioning TOA/TDOA AOA |
