Performance analysis of NSA control plane and user plane delay in 5G network

Dan ZHANG; Lei WANG; Xiaoqi WANG; Siyu XI

doi:10.11959/j.issn.1000-0801.2020260

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Performance analysis of NSA control plane and user plane delay in 5G network

Topic:5G Commercial and Evolution | 更新时间：2024-06-05

- Performance analysis of NSA control plane and user plane delay in 5G network
- Telecommunications Science Vol. 36, Issue 9, Pages: 141-147(2020)
- 作者机构：
  
  1. 中国移动通信集团陕西有限公司，陕西西安 710077
  2. 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：
- DOI：10.11959/j.issn.1000-0801.2020260
  CLC： TN929.5
- Published Online：2020-09，
  
  Published：20 September 2020
- 稿件说明：
移动端阅览
Dan ZHANG, Lei WANG, Xiaoqi WANG, et al. Performance analysis of NSA control plane and user plane delay in 5G network[J]. Telecommunications science, 2020, 36(9): 141-147.
DOI：

Dan ZHANG, Lei WANG, Xiaoqi WANG, et al. Performance analysis of NSA control plane and user plane delay in 5G network[J]. Telecommunications science, 2020, 36(9): 141-147. DOI： 10.11959/j.issn.1000-0801.2020260.

摘要

不同于2G/3G/4G的独立组网，5G的网络架构分为两种：非独立（NSA）组网和独立（SA）组网。NSA作为非独立架构，能实现5G的快速部署。低时延是5G非常重要的特点，其实现需要一系列技术的有机结合。针对2.6 GHz NR帧结构，结合理论分析和实际案例数据，研究了NSA架构下控制面时延和用户面时延的现状和问题：当前，商用芯片级别的终端控制面时延约为359～510 ms；，开启预调度功能时，NSA好点空口双向用户面时延为11～14 ms，关闭预调度后，用户面时延增加至15～17 ms。为了进一步优化控制面时延性能，可采用设置NSA的锚点与NR子帧同步、将B1的timetotrigger设置得略小等方案；而采取SR周期自适应方式则可以降低用户面时延。并给出了时延优化方案，给NSA网络部署提供了相应的思路和建议。

Abstract

Different from 2G/3G/4G

the 5G network architecture contains two parts:NSA (non-standalone) and SA (standalone) networking.NSA can help network deploys faster.Low latency is a very important feature of 5G

and its implementation requires a combination of technologies.Based on the 2.6 GHz NR frame structure

combined with theoretical analysis and real case

the current situation and problems of control plane delay and user plane delay were discussed

and the delay optimization method was provided

which provided the corresponding ideas and suggestions for NSA network deployment.

关键词

Keywords

references

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