Research on characteristic model-based atmospheric duct interference control in TDD wireless communication system

Xiaoyun WANG; Wei DENG; Long ZHANG; Xin SU; Shizhuo ZHAO

doi:10.11959/j.issn.1000-0801.2022286

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Research on characteristic model-based atmospheric duct interference control in TDD wireless communication system

Research and Development | 更新时间：2024-06-05

- Research on characteristic model-based atmospheric duct interference control in TDD wireless communication system
- Telecommunications Science Vol. 38, Issue 11, Pages: 11-23(2022)
- 作者机构：
  
  1. 中国移动通信集团有限公司，北京 100053
  2. 中国移动通信有限公司研究院，北京 100053
- 作者简介：
- 基金信息：
- DOI：10.11959/j.issn.1000-0801.2022286
  CLC： TN929
- Published Online：2022-11，
  
  Published：20 November 2022
- 稿件说明：
移动端阅览
Xiaoyun WANG, Wei DENG, Long ZHANG, et al. Research on characteristic model-based atmospheric duct interference control in TDD wireless communication system[J]. Telecommunications science, 2022, 38(11): 11-23.
DOI：

Xiaoyun WANG, Wei DENG, Long ZHANG, et al. Research on characteristic model-based atmospheric duct interference control in TDD wireless communication system[J]. Telecommunications science, 2022, 38(11): 11-23. DOI： 10.11959/j.issn.1000-0801.2022286.

摘要

大气波导干扰是特定气象条件下发生的时分双工（time-division duplex，TDD）系统内干扰，是TDD移动通信系统大规模组网面临的顽疾。在总结分析大气波导干扰成因和分类等的基础上，对大气波导干扰进行建模和表征，验证了海量干扰源在时域和频域的功率集总特征，并结合大量4G/5G现网实测数据给出了典型条件下内陆波导和海面波导的量化干扰信号传播模型，对于干扰的预测和预防具有重要意义。基于干扰特征，给出了TDD系统预防大气波导干扰的帧结构与组网的4项设计原则，5G现网数据表明干扰控制方案有效，上行干扰下降10 dB以上，相关原则对于6G系统的设计也具有指导意义。

Abstract

Atmospheric duct interference is a seriousinternal interference of large-scale TDD wireless communication system according to specific meteorological conditions.The causes and classification of the atmospheric duct interference were analyzed firstly.Then a typical quantitative interference signal propagation model of inland and sea atmospheric duct were proposed and the power characteristics of massive interference sources in time domain and frequency domain were verified.The feature of the proposed model is based on a large number of data in real 4G/5G network environment

which is of great significance for the prediction and cancellation of atmospheric duct interference.Finally

four design principles were proposed for the frame structure and networking in TDD system to control atmospheric duct interference based on the characteristics of the proposed model.The verification in 5G network shows that the uplink interference drops more than 10 dB by the proposed interference control principles.It will also be instructive for the design of 6G system.

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references

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