计算机科学

计算机科学 ›› 2026, Vol. 53 ›› Issue (6A): 250400072-7.doi: 10.11896/jsjkx.250400072

• 网络&通信 • 上一篇    下一篇

面向DMR应急通信系统的时间确定性服务网络

王睿家1, 王稳凯2, 罗浩翔2, 任兴亮2, 丁磊1,2, 张东坡1   

  1. 1 中国电子科技集团公司第三十六研究所 浙江 嘉兴 100048
    2 西安电子科技大学 西安 710071
  • 出版日期:2026-06-16 发布日期:2026-06-12
  • 通讯作者: 任兴亮(203271083@qq.com)
  • 作者简介:(wrj7327@163.com)
  • 基金资助:
    国家自然科学基金面上项目(62371381)

Time-deterministic Service Network for DMR Emergency Communication Systems

WANG Ruijia1, WANG Wenkai2, LUO Haoxiang2, REN Xingliang2, DING Lei1,2, ZHANG Dongpo1   

  1. 1 The 36th Research Institute of China Electronics Technology Group Corporation,Jiaxing,Zhejiang 100048,China
    2 Xidian University,Xi'an 710071,China
  • Published:2026-06-16 Online:2026-06-12
  • About author:WANG Ruijia,born in 1992,engineer.His main research interest is communication countermeasures.
    REN Xingliang,born in 2000,postgra-duate.His main research interest is electronic information.
  • Supported by:
    National Natural Science Foundation of China(62371381).

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摘要： 传统的DMR网络通过以太网连接,在面对高数量的突发业务时,往往会出现长排队的现象并导致高时延,从而容易导致大量的重传现象并出现较高的丢包率。对IP网络的端系统进行流量控制以降低业务流在交换节点的冲突,进而避免产生较长的排队可能是一种有效的解决方案。文中在此基础上探讨IP互联下的DMR应急通信网络与确定性网络的融合的关键问题,提出了DMR应急通信网络的业务转发和调度方法,并设计确定性转发单元,实现了业务调度表来保证业务流之间能够错峰传输和中转,实现并控制业务流按照调度表的规则发送。最后采用DMR设备进行测试,结果显示该方法将抖动稳定性提升了19.80%。

关键词: DMR, 确定性网络, 应急通信, 流量控制

Abstract: In traditional DMR networks,connections are made via Ethernet.When facing a high volume of burst traffic,long queues often occur,leading to high latency.This can easily result in a high rate of retransmissions and packet loss.Implementing flow control for IP network end systems to reduce traffic flow conflicts at switching nodes,and thereby avoid long queues,may be an effective solution.Based on this,this paper explores key issues related to the integration of DMR emergency communication networks with deterministic networks under IP interconnection.It proposes a traffic forwarding and scheduling method for DMR emergency communication networks,and designs a deterministic forwarding unit.This unit utilizes a scheduling table to ensure staggered transmission and relay of traffic flows,allowing for controlled traffic flow transmission according to scheduling rules.Tests performed with DMR equipment demonstrate that the method increases jitter stability by 19.80%.

Key words: DMR, Deterministic networking, Emergency communication, Flow control

中图分类号: 

  • TP393
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