Delay characteristics of time-sensitive services in 5G networks

Jianyu CAO; Wei FENG; Ning GE

doi:10.11959/j.issn.2096-3750.2022.00298

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Delay characteristics of time-sensitive services in 5G networks

Theory and Technology | 更新时间：2024-08-16

- Delay characteristics of time-sensitive services in 5G networks
- Chinese Journal on Internet of Things Vol. 6, Issue 4, Pages: 93-103(2022)
- 作者机构：
  
  1. 桂林电子科技大学计算机与信息安全学院，广西桂林 541004
  2. 清华大学电子工程系，北京 100084
- 作者简介：
- 基金信息：
- DOI：10.11959/j.issn.2096-3750.2022.00298
  CLC： TN91
- Online First：2022-12，
  
  Published：30 December 2022
- 稿件说明：
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Jianyu CAO, Wei FENG, Ning GE. Delay characteristics of time-sensitive services in 5G networks[J]. Chinese Journal on Internet of Things, 2022, 6(4): 93-103.
DOI：

Jianyu CAO, Wei FENG, Ning GE. Delay characteristics of time-sensitive services in 5G networks[J]. Chinese Journal on Internet of Things, 2022, 6(4): 93-103. DOI： 10.11959/j.issn.2096-3750.2022.00298.

摘要

面向工业应用，5G 接入网需要同时支持时敏与非时敏业务。两类业务共享无线资源和缓冲队列，常导致时延的复杂耦合与不确定。针对ON-OFF时敏业务与非时敏业务共存场景，基于二阶级联排队模型，建立包含排队时延的随机时延特性计算方法，得到时敏业务的时延均值、标准差、越界概率与概率分布。在此基础上，分析非时敏业务对时敏业务随机时延特性的影响。实验表明，非时敏业务对ON-OFF时敏业务随机时延特性的影响与ON-OFF阶段的轮换频率相关；ON-OFF时敏业务时延的概率分布与伽马分布的右拖尾长度近似相等。

Abstract

For industrial applications

the time-sensitive services (TSS) and non TSS need to share the radio resources and the same buffer queue in 5G radio access network (RAN).This incurs the complex coupling and uncertainty of the delays.Considering the scenario where ON-OFF TSS and non TSS coexist

the calculation methods for the random delay (including queueing delay) characteristics were established based on the two-stage tandem queueing model

to obtain the mean value

standard deviation

bound violation probability and probability distribution of the delay of TSS.On this basis

the influence of non TSS on the random delay characteristics of TSS was analyzed.It is shown that the influence of non TSS on the random delay characteristics of ON-OFF TSS is related to the rotation frequency of ON-OFF stages.Moreover

the delay probability distribution of ON-OFF TSS has approximately the same right tail length as Gamma distribution.

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