New Approach of Integration Space-Ground: Hotspots, Challenges, and Key Technologies of Direct-to-Smartphone

Yuanzhi HE; Lingcai YANG; Yongwei XIAO; Shijie ZHANG; Zhiqiang LI; Yun LIU

doi:10.11959/j.issn.2096-8930.2024011

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New Approach of Integration Space-Ground: Hotspots, Challenges, and Key Technologies of Direct-to-Smartphone

Review | 更新时间：2024-08-06

- New Approach of Integration Space-Ground: Hotspots, Challenges, and Key Technologies of Direct-to-Smartphone
- Space-Integrated-Ground Information Networks Vol. 5, Issue 2, Pages: 1-11(2024)
- 作者机构：
  
  1. 军事科学院系统工程研究院，北京100141
  2. 中国电信股份有限公司卫星通信分公司，北京 100088
  3. 中国电子科技集团公司第五十四研究所，河北石家庄 050081
  4. 银河航天（北京）网络技术有限公司，北京 100192
- 作者简介：
- 基金信息：
- DOI：10.11959/j.issn.2096-8930.2024011
  CLC： TN927.2
- Online First：2024-06，
  
  Published：20 June 2024
- 稿件说明：
移动端阅览
Yuanzhi HE, Lingcai YANG, Yongwei XIAO, et al. New Approach of Integration Space-Ground: Hotspots, Challenges, and Key Technologies of Direct-to-Smartphone[J]. Space-Integrated-Ground Information Networks, 2024, 5(2): 1-11.
DOI：

Yuanzhi HE, Lingcai YANG, Yongwei XIAO, et al. New Approach of Integration Space-Ground: Hotspots, Challenges, and Key Technologies of Direct-to-Smartphone[J]. Space-Integrated-Ground Information Networks, 2024, 5(2): 1-11. DOI： 10.11959/j.issn.2096-8930.2024011.

摘要

手机直连卫星作为未来实现天地一体化融合的一种潜在技术手段，得到了产业界和学术界的广泛关注。与传统的卫星移动通信相比，当前手机直连卫星技术存在诸多挑战。针对基于同步轨道卫星和非同步轨道卫星的两种手机直连技术路线，分析国内外发展现状、系统组成架构，并从空口侧、卫星侧、网络侧和终端侧梳理技术挑战，提出星地同步、星载超大阵面天线、星地异构网络漫游等若干解决方案，为手机直连卫星技术的发展提供技术支撑。最后对手机直连卫星的发展进行展望。

Abstract

Direct-to-smartphone

as a potential technological means for achieving the integration of space and ground in the future

has received widespread attention from industry and academia.Compared with traditional satellite mobile communication

there are many challenges in the current direct-to-smartphone technology.The current development status and system architecture of two direct-to-smartphone technology routes based on synchronous orbit satellites and asynchronous orbit satellites were introduced

and the technical challenges from the air-interface side

satellite side

network side

and terminal side were summarized.Several solutions were proposed

included satellite-terrestrial synchronization

satellite-borne ultra-large array antenna

and satellite-terrestrial heterogeneous network roaming

providing technical support for the development of direct-to-smartphone technology.Finally

a brief outlook were provided.

关键词

Keywords

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