面向5G-Advanced无线系统的高精度定位技术

doi:10.11959/j.issn.1000-0801.2022041

电信科学 ›› 2022, Vol. 38 ›› Issue (3): 65-73.doi: 10.11959/j.issn.1000-0801.2022041

面向5G-Advanced无线系统的高精度定位技术

任斌¹^,², 张振宇³, 方荣一¹^,²^,³, 任晓涛¹^,², 李健翔¹^,², 侯云静¹^,², 于哲¹^,², 孙韶辉¹^,²

¹ 中信科移动通信技术股份有限公司，北京 100083
² 无线移动通信国家重点实验室（电信科学技术研究院有限公司），北京 100191
³ 北京航空航天大学，北京 100083

修回日期:2022-03-08 出版日期:2022-03-20 发布日期:2022-03-01
作者简介:任斌（1983－），男，博士，中信科移动通信技术股份有限公司高级工程师，主要研究方向为无线蜂窝网络中的高精度定位技术、非正交多址接入技术和随机接入技术
张振宇（1992－），男，北京航空航天大学博士生，主要研究方向为无线蜂窝网络中的高精度定位技术
方荣一（1993－），男，中信科移动通信技术股份有限公司工程师，北京航空航天大学博士生，主要研究方向为高精度定位技术
任晓涛（1976－），男，博士，中信科移动通信技术股份有限公司高级工程师，主要研究方向为高精度定位、车联网
李健翔（1979－），女，中信科移动通信技术股份有限公司高级工程师，主要研究方向为高精度定位、空天地一体化网络及定位
侯云静（1985－），女，中信科移动通信技术股份有限公司高级工程师，主要研究方向为定位、网络切片
于哲（1995－），男，中信科移动通信技术股份有限公司工程师，主要研究方向为高精度定位
孙韶辉（1972－），男，博士，中信科移动通信技术股份有限公司副总经理，长期从事移动通信新技术研究与标准制定工作，主要研究方向为移动通信系统设计及多天线技术、卫星通信和定位等关键技术

High-accuracy positioning for 5G-Advanced wireless systems

Bin REN¹^,², Zhenyu ZHANG³, Rongyi FANG¹^,²^,³, Xiaotao REN¹^,², Jianxiang LI¹^,², Yunjing HOU¹^,², Zhe YU¹^,², Shaohui SUN¹^,²

¹ CICT Mobile Communications Technology Co., Ltd., Beijing 100083, China
² State Key Laboratory of Wireless Mobile Communications, China Academy of Telecommunications Technology(CATT), Beijing 100191, China
³ Beihang University, Beijing 100083, China

Revised:2022-03-08 Online:2022-03-20 Published:2022-03-01

摘要/Abstract

摘要：

随着定位技术的快速发展，面向5G-Advanced的高精度定位技术正受到越来越多的关注。首先，介绍了第三代合作伙伴计划（3rd Generation Partnership Project，3GPP）Rel-16和Rel-17的5G定位标准现状和Rel-18的5G-Advanced定位技术增强方向。其次，重点研究了5G正交频分复用（orthogonal frequency division multiplexing，OFDM）信号模型和载波相位定位技术需要解决的 3 个关键算法：基于锁相环的载波相位测量算法、基于参考终端的双差分算法和基于拓展卡尔曼滤波的用户设备（user equipment，UE）位置解算算法。最后，分析了低功耗高精度定位技术方案和基于定位参考设备的定位精度增强技术方案。

关键词: 5G新空口, 载波相位定位, 低功耗高精度定位, 定位参考设备, 整周模糊度

Abstract:

With the rapid development of positioning technology, high-accuracy positioning technology for 5G-Advanced is receiving more and more attention.Firstly, the current situation of 5G positioning standards based on the 3rd Generation Partnership Project (3GPP) Release 16/ Release17 and the enhancement directions of the 5G-Advanced positioning technology based on 3GPP Release 18 were introduced.Secondly, the 5G orthogonal frequency division multiplexing (OFDM) signal model and three key algorithms for carrier phase positioning technology were mainly studied, including: carrier phase measurement algorithm based on phase locked loop, double-difference algorithm based on reference user equipment (UE), and UE position calculation algorithm based on extended Kalman filter.Finally, the low-power high-accuracy positioning technology and the positioning accuracy enhancement technology based on positioning reference unit were analyzed.

Key words: 5G new radio, carrier phase positioning, low-power high-accuracy positioning, positioning reference unit, integer ambiguity

中图分类号:

TP393

任斌, 张振宇, 方荣一, 任晓涛, 李健翔, 侯云静, 于哲, 孙韶辉. 面向5G-Advanced无线系统的高精度定位技术[J]. 电信科学, 2022, 38(3): 65-73.

Bin REN, Zhenyu ZHANG, Rongyi FANG, Xiaotao REN, Jianxiang LI, Yunjing HOU, Zhe YU, Shaohui SUN. High-accuracy positioning for 5G-Advanced wireless systems[J]. Telecommunications Science, 2022, 38(3): 65-73.

图/表 4

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仿真参数	参数取值
载波频率	3.5 GHz
定位场景	3GPP室内工厂场景（InF-SH）
场景尺度	长300 m，宽150 m
移动终端速度	1 m/s
TOA测量算法	高分辨率算法
载波相位测量算法	数字锁相环

面向5G-Advanced无线系统的高精度定位技术

High-accuracy positioning for 5G-Advanced wireless systems

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