Integrated Routing and Switching Technology for LEO Satellites

ZHANG Shiceng; ZHANG Dong; AN Shaoyi; SUN Yanhong; WANG Limin

doi:10.11959/j.issn.1000-0801.2025014

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Integrated Routing and Switching Technology for LEO Satellites

Studies | 更新时间：2025-07-04

- Integrated Routing and Switching Technology for LEO Satellites
- Space-Integrated-Ground Information Networks Vol. 6, Issue 2, Pages: 19-26(2025)
- 作者机构：
  
  中国电子科技集团公司第五十四研究所，河北石家庄 050081
- 作者简介：
- 基金信息：
  
  National Key Research and Development Program of China(2023YFB4302801)
- DOI：10.11959/j.issn.1000-0801.2025014
  CLC： TN927.2
- Received：20 January 2025，
  
  Revised：2025-04-30，
  
  Published：20 June 2025
- 稿件说明：
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张世层,张冬,安绍毅等.低轨卫星一体化路由交换技术[J].天地一体化信息网络,2025,06(02):19-26.

ZHANG Shiceng,ZHANG Dong,AN Shaoyi,et al.Integrated Routing and Switching Technology for LEO Satellites[J].Space-Integrated-Ground Information Networks,2025,06(02):19-26.
张世层,张冬,安绍毅等.低轨卫星一体化路由交换技术[J].天地一体化信息网络,2025,06(02):19-26. DOI： 10.11959/j.issn.1000-0801.2025014.

ZHANG Shiceng,ZHANG Dong,AN Shaoyi,et al.Integrated Routing and Switching Technology for LEO Satellites[J].Space-Integrated-Ground Information Networks,2025,06(02):19-26. DOI： 10.11959/j.issn.1000-0801.2025014.

摘要

低轨卫星可提供更精准、更高效的多源数据融合信息服务。深入分析低轨卫星在轨特性对星座网络的影响，设计融合了卫星的再生处理、透明转发、子带转发等多服务场景的载荷配置方案。针对星座网络拓扑变化对服务性能的影响，以及多类用户不同应用模式需求，从载荷配置、交换架构、控制机制、星间高速通信4个关键维度，开展低轨星座载荷系统设计与星地一体化路由交换技术研究，并进行路由交换典型性能测试验证。目前，该技术已成功应用于某低轨卫星互联网试验星。

Abstract

Low Earth Orbit (LEO) satellites are capable of delivering more precise and efficient multi-source data fusion information services. This paper delves deep into the impact exerted by the on-orbit characteristics of low-orbit satellites on the constellation network. Based on this analysis

a payload configuration scheme is devised

which seamlessly integrates multiple service scenarios

including satellite regenerative processing

transparent forwarding

and sub-band forwarding. In view of the negative effects of constellation network topology changes on service performance and the diverse application mode demands of various user groups

this study conducts in-depth research on the design of the low-orbit constellation payload system and satellite-ground integrated routing and switching technology. The research is carried out from four crucial aspects: payload configuration

switching architecture

control mechanism

and inter-satellite high-speed communication. Moreover

the typical performance of routing and switching is validated through rigorous tests. Currently

this technology has been successfully implemented in a specific low-orbit satellite Internet experimental satellite.

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references

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