基于NTN的手机直连卫星定位技术

孙晓南; 周世东; 康绍莉

doi:10.11959/j.issn.2096-8930.2024026

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基于NTN的手机直连卫星定位技术

专题：通导遥算融合无线网络技术 | 更新时间：2024-12-11

- 基于NTN的手机直连卫星定位技术
- Non-Terrestrial Network Based Positioning Technologies for Direct-to-Satellite Service
- 天地一体化信息网络 2024年5卷第3期页码：35-43
- 作者机构：
  
  1.中信科移动通信技术股份有限公司,北京 100083
  2.清华大学,北京 100084
- 作者简介：
  
  [ "孙晓南（1974— ），男，中信科移动通信技术股份有限公司总经理，长期从事移动通信新技术研究，主要研究方向为5G、卫星通信等。" ]
  [ "周世东（1969— ），男，清华大学信息技术研究院无线中心副主任、电子系教授、博士生导师，主要研究方向为无线与移动通信系统体制、扩频与码分多址技术、信道编译码技术、多天线系统与技术等。" ]
  [ "康绍莉（1974— ），女，中信科移动通信技术股份有限公司系统研究高级技术专家，长期从事地面移动通信和卫星通信的新技术研究，在中国通信标准化协会担任航空通信委员会系统组副组长。" ]
- 基金信息：
  
  国家重点研发计划资助项目(2022YFB2902600)
- DOI：10.11959/j.issn.2096-8930.2024026
  中图分类号： TP393
- 收稿日期：2024-05-30，
  
  修回日期：2024-08-20，
  
  纸质出版日期：2024-09-20
- 稿件说明：
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孙晓南,周世东,康绍莉.基于NTN的手机直连卫星定位技术[J].天地一体化信息网络,2024,05(03):35-43.

SUN Xiaonan,ZHOU Shidong,KANG Shaoli.Non-Terrestrial Network Based Positioning Technologies for Direct-to-Satellite Service[J].Space-Integrated-Ground Information Networks,2024,05(03):35-43.
孙晓南,周世东,康绍莉.基于NTN的手机直连卫星定位技术[J].天地一体化信息网络,2024,05(03):35-43. DOI： 10.11959/j.issn.2096-8930.2024026.

SUN Xiaonan,ZHOU Shidong,KANG Shaoli.Non-Terrestrial Network Based Positioning Technologies for Direct-to-Satellite Service[J].Space-Integrated-Ground Information Networks,2024,05(03):35-43. DOI： 10.11959/j.issn.2096-8930.2024026.

摘要

随着无线通信技术的飞速发展，定位技术正经历从专用导航卫星系统向通信系统辅助定位，甚至独立定位的方向转变。国际标准化组织3GPP自R18开展了基于5G NTN的定位技术研究，推进通信导航一体化发展。考虑到终端可见的卫星数量，目前在3GPP中研究的主要是单星定位技术，存在收敛慢、定位精度低等不足。随着低轨巨型星座的发展，终端未来可见的卫星数目越来越多，因此多星定位成为可能，并相对于单星定位具有收敛快、几何布局好、精度高等优势。针对5G NTN体制的手机直连卫星定位技术进行研究，提出多种适合多星定位的算法，分析影响定位性能的关键因素并开展定位性能仿真评估。

Abstract

With the rapid evolution of wireless communication technologies

positioning technologies are undergoing a transformation from dedicated navigation satellite systems towards communication system-assisted positioning and even standalone positioning. The International Telecommunication Union's 3GPP

since Release 18

has embarked on researching 5G Non-Terrestrial Network (NTN) positioning technologies

fostering the integration of communication and navigation. Considering the limited visibility of satellites to terminals

the primary focus of current 3GPP research lies in single-satellite positioning technology

which suffers from drawbacks such as slow convergence and low accuracy. However

with the emergence of low-Earth orbit mega-constellations

terminals will access to an increasing number of visible satellites in the future

rendering multi-satellite positioning feasible. Compared to single-satellite positioning

multi-satellite positioning offers advantages such as faster convergence

improved geometric configurations and higher accuracy.This paper delves into the research of positioning technologies for Direct-to-Satellite Service (D2SS) within the 5G NTN framework

proposing various multi-satellite positioning algorithms

analyzing the critical factors influencing positioning performance

and conducting simulation assessments of positioning performance.

关键词

Keywords

references

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