Research on key technologies of direct-to-handset under satellite-terrestrial integrated network

LIU Hui; YE Yang; DING Zhidong; LIU Xianghua; ZHU Ziyuan; ZHOU Jing

doi:10.11959/j.issn.1000-0801.2024099

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Research on key technologies of direct-to-handset under satellite-terrestrial integrated network

direct-to-handset satellite communication | 更新时间：2024-06-05

- Research on key technologies of direct-to-handset under satellite-terrestrial integrated network
- Telecommunications Science Vol. 40, Issue 4, Pages: 10-17(2024)
- 作者机构：
  
  中国联合网络通信有限公司研究院，北京 100076
- 作者简介：
- 基金信息：
- DOI：10.11959/j.issn.1000-0801.2024099
  CLC： TN929.5
- Received：15 March 2024，
  
  Revised：15 April 2024，
  
  Published：20 April 2024
- 稿件说明：
移动端阅览
刘会,叶阳,丁志东等.星地融合下的手机直连关键技术研究[J].电信科学,2024,40(04):10-17.

LIU Hui,YE Yang,DING Zhidong,et al.Research on key technologies of direct-to-handset under satellite-terrestrial integrated network[J].Telecommunications Science,2024,40(04):10-17.
刘会,叶阳,丁志东等.星地融合下的手机直连关键技术研究[J].电信科学,2024,40(04):10-17. DOI： 10.11959/j.issn.1000-0801.2024099.

LIU Hui,YE Yang,DING Zhidong,et al.Research on key technologies of direct-to-handset under satellite-terrestrial integrated network[J].Telecommunications Science,2024,40(04):10-17. DOI： 10.11959/j.issn.1000-0801.2024099.

摘要

当前，大众用户和行业用户对星地融合通信的需求不断演进，以实现无缝覆盖与随时随地接入，集成卫星和地面通信能力将是未来手机终端的发展方向。首先介绍了手机直连的应用场景、国内外发展路径和相关技术方案；其次，针对3GPP NTN标准化技术方案，分析了实现手机直连的组网架构和空口关键技术方案，并探讨了卫星通信场景下多模终端在天线能力、语音能力及节能方面的需求及潜在改进方案；最后阐述了手机直连频谱资源及挑战，为星地融合手机直连终端通信设计提供参考。

Abstract

Nowadays

the demand of consumers and industrial users for satellite-terrestrial integrated communications is evolving to achieve seamless coverage and anytime

anywhere access

and the integration of satellite and terrestrial communication capabilities will be the development direction of future mobile phones. The application scenarios for direct-to-handset connectivity

domestic and international development paths

and related technical solutions were introduced. Subsequently

the network architecture and key technology for realizing direct-to-handset connectivity with respect to the 3GPP NTN standard scheme were analyzed. The requirements and potential improvement schemes for multi-mode terminals in satellite communication scenarios in terms of integrated design

antenna capabilities

voice capabilities and power saving

were also identified. Finally

by exploring the key regulatory challenges (e.g. radio-frequency spectrum) related to direct-to-handset communications

feasible pathways for the future development of satellite-terrestrial integrated terminals were provided.

关键词

Keywords

references

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