面向5G-Advanced无线系统的高精度定位技术

doi:10.11959/j.issn.1000-0801.2022041

Abstract

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

CLC Number:

TP393

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.

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References 30

[1]	Intel Corporation,Ericsson. Revised SID:study on NR positioning support:RP-182155[R]. 2018.
[2]	Intel Corporation,Ericsson. Revised WID:NR positioning support:RP-192581[R]. 2019.
[3]	3GPP. Study on NR positioning support,Version 16.0.0:TR 38.855[R]. 2019.
[4]	3GPP. Study on NR positioning enhancements,version 17.0.0:TR 38.857[R]. 2021.
[5]	Intel Corporation,CATT. Revised WID on NR positioning enhancements:RP-210903[R]. 2021.
[6]	REN B , FANG R Y , REN X T ,et al. Progress of 3GPP Rel-17 standards on new radio (NR) Positioning[C]// Eleventh International Conference on Indoor Positioning and Indoor Navigation (IPIN). [S.l.:s.n.], 2021.
[7]	Intel Corporation,CATT,Ericsson. Revised SID on Study on expanded and improved NR positioning:RP-213588[R]. 2021.
[8]	CATT,Huawei. Revised SID on Study on expanded and improved NR positioning:RP-213588[R]. 2021.
[9]	谢钢 . GPS原理与接收机设计[M]. 北京: 电子工业出版社, 2009.
	XIE G . GPS principle and receiver design[M]. Beijing: Publishing House of Electronics Industry, 2009.
[10]	SPETHM , FECHTEL S A , FOCK G ,et al. Optimum receiver design for wireless broad-band systems using OFDM.I[J]. IEEE Transactions on Communications, 1999,47(11): 1668-1677.
[11]	CHO Y S , KIM J , YANG W Y ,et al. MIMO-OFDM Wireless Communications with MATLAB[M]. Chichester,UK: John Wiley ＆ Sons,Ltd, 2010.
[12]	GOLDSMITH A . Wireless Communications[M]. Cambridge: Cambridge University Press, 2005.
[13]	KUANG L L , NI Z Y , LU J H ,et al. A time-frequency decision-feedback loop for carrier frequency offset tracking in OFDM systems[J]. IEEE Transactions on Wireless Communications, 2005,4(2): 367-373.
[14]	XU W , HUANG M , ZHU C ,et al. Maximum likelihood TOA and OTDOA estimation with first arriving path detection for 3GPP LTE system[J]. Transactions on Emerging Telecommunications Technologies, 2016,27(3): 339-356.
[15]	RYDEN H , ZAIDI A , RAZAVI S M ,et al. Enhanced time of arrival estimation and quantization for positioning in LTE networks[C]// Proceedings of 2016 IEEE 27th Annual International Symposium on Personal,Indoor,and Mobile Radio Communications. Piscataway:IEEE Press, 2016: 1-6.
[16]	LI X R , PAHLAVAN K . Super-resolution TOA estimation with diversity for indoor geolocation[J]. IEEE Transactions on Wireless Communications, 2004,3(1): 224-234.
[17]	HE W , YUE Z Y , TIAN Z S ,et al. Carrier phase-based Wi-Fi indoor localization method[C]// Proceedings of 2020 IEEE/CIC International Conference on Communications in China (ICCC). Piscataway:IEEE Press, 2020: 34-39.
[18]	SHI J . Precise point positioning integer ambiguity resolution with decoupled clocks[D]. Canada:University of Calgary, 2012.
[19]	ZHAO S H , CUI X W , GUAN F ,et al. A Kalman filter-based short baseline RTK algorithm for single-frequency combination of GPS and BDS[J]. Sensors (Basel,Switzerland), 2014,14(8): 15415-15433.
[20]	3GPP. Study on channel model for frequencies from 0.5 to 100 GHz,Version 16.1.0:TR 38.901[R]. 2019.
[21]	Intel. Moderator's summary for discussion[RAN93eR18Prep-10]expanded and improved positioning:RP211660[R]. 2021.
[22]	Qualcomm Incorporated. Views on Positioning Evolution for Rel-18:RP-212045[R]. 2021.
[23]	CATT. On Rel-18 NR expanded and improved positioning:RP-212250[R]. 2021.
[24]	3GPP. 5G System (5GS) Location Services (LCS),Version 17.3.0:TS 23.273[S]. 2021.
[25]	Qualcomm Incorporated. Positioning of UEs in RRC inactive state:R2-2103900[R]. 2021.
[26]	Intel. Email discussion summary for[94e-06-R18-PositionEvo]:RP-213486[R]. 2021.
[27]	Qualcomm Incorporated. Signalling and procedures for supporting positioning reference units:R2-2108386[R]. 2021.
[28]	VIVO. Discussion on support for positioning reference unit:R2-2107647[R]. 2021.
[29]	CATT. Discussion on positioning reference units (PRUs) for positioning enhancement:R2-2107143[R]. 2021.
[30]	CATT,ZTE Corporation,Intel corporation. Discussion on positioning reference units (PRUs):R2-2109489[R]. 2021.

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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

High-accuracy positioning for 5G-Advanced wireless systems

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