电信科学 ›› 2022, Vol. 38 ›› Issue (5): 26-37.doi: 10.11959/j.issn.1000-0801.2022090

• 专题：5G行业应用 • 上一篇    下一篇

端边协同保障时延确定性技术研究

宋光敏1, 王群青2, 黄占兵3, 施迅4, 韩高健4   

  1. 1 联通（浙江）产业互联网有限公司，浙江 杭州 310051
    2 中国联合网络通信有限公司浙江省分公司，浙江 杭州 310051
    3 华为技术有限公司，浙江 杭州310051
    4 华为技术有限公司，广东 东莞 523808
  • 修回日期:2022-05-15 出版日期:2022-05-20 发布日期:2022-05-01
  • 作者简介:宋光敏（1981- ），男，联通（浙江）产业互联网有限公司 5G 应用系统架构师，主要研究方向为 5G 网络赋能工业领域的关键技术及场景
    王群青（1975- ），女，中国联合网络通信有限公司浙江省分公司高级工程师，主要研究方向为 5G 创新网络和差异化业务的端到端解决方案、5G专网及MEC领域
    黄占兵（1981- ），男，华为技术有限公司5G解决方案架构师，主要研究方向为5G确定性网络、行业可靠性综合解决方案
    施迅（1976- ），男，华为技术有限公司云核心网系统架构师，主要研究方向为 5G 确定性网络、行业可靠性的关键技术及架构
    韩高健（1985- ），男，华为技术有限公司云核心网系统架构师，主要研究方向为 5G确定性网络、行业可靠性的关键技术及行业场景与解决方案

Research on the edge-end collaboration framework for deterministic network

Guangmin SONG1, Qunqing WANG2, Zhanbing HUANG3, Xun SHI4, Gaojian HAN4   

  1. 1 Unicom（Zhejiang）Industrial Internet Co., Ltd., Hangzhou 310051, China
    2 Zhejiang Branch of China United Network Communications Co., Ltd., Hangzhou 310051, China
    3 Huawei Technologies Co., Ltd., Hangzhou 310051, China
    4 Huawei Technologies Co., Ltd., Dongguan 523808, China
  • Revised:2022-05-15 Online:2022-05-20 Published:2022-05-01

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摘要：

工业自动控制等5G垂直行业对网络传输时延与可靠性有着苛刻的要求。聚焦自动导引车（automated guided vehicle，AGV）协同搬运业务场景，深入分析AGV业务关键质量指标（key quality indicator，KQI）与网络时延可靠性需求。现有的5G低时延技术，比如预调度机制通过大量预留空口时频资源降低传输调度等待时延，降低了频谱效率。此外，无线信道弱覆盖、干扰等质差因素会引发较大的时延抖动，难以满足业务时延可靠性需求。针对现有5G网络面临的挑战，设计了一种端边协同时延确定性保障技术方案，基于业务特征进行网络资源预留，同时感知空口信道状态，开启质差保障机制，提升传输可靠性。测试结果表明，端边协同技术方案可以有效提升时延可靠性，降低大时延抖动与优化业务KQI。

关键词: 5G, AGV, 确定性网络, 端边协同

Abstract:

5G vertical industries such as industrial automatic control have strict requirements on network transmission delay and reliability.It was focused on the AGV collaborative carrying scenarios, in which the key quality indicator (KQI) of the AGV collaboration and the requirements for network jitter were analyzed.Existing 5G ultra-low-latency technologies, such as the pre-scheduling mechanism, reduce transmission scheduling latency by reserving a large number of time-frequency resources, which heavily decreases spectrum efficiency.In addition, wireless channel quality factors such as weak coverage and interference, often cause large jitter, making it difficult to meet the service reliability requirements.In order to deal with these challenges, a deterministic edge-end cooperation framework design to guarantee end-to-end latency was proposed.Based on service flow characteristics, resource reservation was utilized to reduce scheduling latency.Moreover, the proposed framework could enhance data transmissions when poor status of channels was sensed.The experimental results show that the edge-end collaboration framework design can effectively increase the delay reliability, reduce the large jitter, and improve the KQI of AGV collaboration.

Key words: 5G, AGV, deterministic network, edge-end collaboration

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