Study on the key performance of 5G downlink air interface based on an explainable machine learning model

LIN Jie

doi:10.11959/j.issn.1000-0801.2025122

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Study on the key performance of 5G downlink air interface based on an explainable machine learning model

Engineering and Application | 更新时间：2025-06-03

- Study on the key performance of 5G downlink air interface based on an explainable machine learning model
- Telecommunications Science Vol. 41, Issue 5, Pages: 178-185(2025)
- 作者机构：
  
  中国电信股份有限公司福州分公司，福建福州 350001
- 作者简介：
- 基金信息：
- DOI：10.11959/j.issn.1000-0801.2025122
  CLC： TN915
- Received：09 January 2025，
  
  Revised：2025-03-09，
  
  Published：20 May 2025
- 稿件说明：
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林劼.基于可解释机器学习模型的5G下行空口关键性能研究[J].电信科学,2025,41(05):178-185.

LIN Jie.Study on the key performance of 5G downlink air interface based on an explainable machine learning model[J].Telecommunications Science,2025,41(05):178-185.
林劼.基于可解释机器学习模型的5G下行空口关键性能研究[J].电信科学,2025,41(05):178-185. DOI： 10.11959/j.issn.1000-0801.2025122.

LIN Jie.Study on the key performance of 5G downlink air interface based on an explainable machine learning model[J].Telecommunications Science,2025,41(05):178-185. DOI： 10.11959/j.issn.1000-0801.2025122.

摘要

小区下行有效吞吐率和用户面时延是5G空口的重要性能指标。为研究并解释其背后的影响因素，使用局部线性森林结合Shapley值法进行预测和解释。实验结果显示，相比传统方法，该方法具有较高的预测准确性。在此基础上通过计算各影响因素对结果的贡献并分析其影响变化趋势，找出问题小区对应的问题因素。最后，通过贡献重要性排序，推演重要因素改变对结果的影响，实现更加全面理解和分析性能指标的目的。

Abstract

The cell downlink effective throughput and user plane latency are important performance indicators of the 5G system’s air interface. To study the impact factors behind them

the integration of Shapley value with local linear forest model was used to make predictions with explanations. The experiment results show that compared to traditional method

this method achieves a better predict precision. Based on this

by calculating each factor’s contribution towards the results and analyzing the corresponding trends

a problematic factor for each problematic cell was found. Finally

by sorting the importance of each factor’s contribution

changes in results were inferred by changes in important factors

thus more comprehensive understanding and analysis of the performance indicators were achieved.

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Keywords

references

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