Feasibility research on the use of IMT frequencies for direct-to-cell satellite communication

ZHANG Lingfan; JI Tianxiang; CHENG Ritao; HUANG Yaoming; CAO Tianyang; ZHU Likun

doi:10.11959/j.issn.1000-0801.2025240

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Feasibility research on the use of IMT frequencies for direct-to-cell satellite communication

Engineering and Application | 更新时间：2026-01-08

- Feasibility research on the use of IMT frequencies for direct-to-cell satellite communication
- Telecommunications Science Vol. 41, Issue 12, Pages: 214-225(2025)
- 作者机构：
  
  中国移动通信集团设计院有限公司，北京 100080
- 作者简介：
- 基金信息：
  
  The National Natural Science Foundation of China(U24B2053)
- DOI：10.11959/j.issn.1000-0801.2025240
  CLC： TN929.5
- Received：28 February 2025，
  
  Revised：2025-08-11，
  
  Accepted：12 August 2025，
  
  Published：20 December 2025
- 稿件说明：
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章凌凡,姬天相,程日涛等.IMT频率用于手机直连卫星的可行性研究[J].电信科学,2025,41(12):214-225.

ZHANG Lingfan,JI Tianxiang,CHENG Ritao,et al.Feasibility research on the use of IMT frequencies for direct-to-cell satellite communication[J].Telecommunications Science,2025,41(12):214-225.
章凌凡,姬天相,程日涛等.IMT频率用于手机直连卫星的可行性研究[J].电信科学,2025,41(12):214-225. DOI： 10.11959/j.issn.1000-0801.2025240.

ZHANG Lingfan,JI Tianxiang,CHENG Ritao,et al.Feasibility research on the use of IMT frequencies for direct-to-cell satellite communication[J].Telecommunications Science,2025,41(12):214-225. DOI： 10.11959/j.issn.1000-0801.2025240.

摘要

频率选择是开展手机直连卫星发星工作的首要问题，也是发星的技术基础。为此，对手机直连卫星通信频率选择进行分析研究，先从政策、国内外协调层面分析国际移动通信（International Mobile Telecommunications，IMT）频率用于手机直连卫星的可行性，再从技术层面研究IMT频率的星间互调及星地干扰影响。通过完善用频方案，为开展不同轨位手机直连卫星的应用提供高可靠性、高可用度的选频思路，这对加快手机直连卫星系统建设具有重要意义。

Abstract

Frequency selection is the primary consideration and technical foundation for launching satellites for direct to cell-satellite communication. To this end

the frequency selection for such communication systems was analyzed and studied. The feasibility of using International Mobile Telecommunications (IMT) frequencies for direct-to-cell satellite communication was analyzed from the perspectives of policy and international coordination. It then investigated the technical impacts

specifically inter-satellite intermodulation and satellite-to-ground interference

within the IMT frequency bands. By refining the frequency utilization plan

a highly reliable and available frequency selection approach was provided for various orbital applications of direct-to-cell satellite. This work is of great significance for accelerating the development of direct to cell-satellite systems.

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references

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