矿用5G网络切片技术研究

孟庆勇; 姜玉峰; 李晨鑫; 张立亚

doi:10.13272/j.issn.1671-251x.18131

矿用5G网络切片技术研究

doi: 10.13272/j.issn.1671-251x.18131

孟庆勇^{1, 2, 3,},
姜玉峰^{1, 2, 3},
李晨鑫^{1, 2, 3},
张立亚^{1, 2, 3}

1.
煤炭科学技术研究院有限公司, 北京　100013
2.
煤矿应急避险技术装备工程研究中心, 北京　100013
3.
北京市煤矿安全工程技术研究中心, 北京　100013

基金项目: 天地科技股份有限公司科技创新创业资金专项项目（2023-TD-ZD005-001, 2022-2-TD-ZD001）。

详细信息

作者简介:
孟庆勇（1982—），男，山东梁山人，研究员，硕士，现主要从事煤矿安全监控与通信技术方面的研究和应用工作，E-mail：mengqingyong@ccrise.cn

中图分类号: TD655
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- 被引次数: 0
出版历程
- 收稿日期: 2023-05-05
- 修回日期: 2023-06-02
- 网络出版日期: 2023-06-29

Research on mine 5G network slicing technology

MENG Qingyong^{1, 2, 3
,},
JIANG Yufeng^{1, 2, 3},
LI Chenxin^{1, 2, 3},
ZHANG Liya^{1, 2, 3}

1.
CCTEG China Coal Research Institute, Beijing 100013, China
2.
Engineering Research Center for Technology Equipment of Emergency Refuge in Coal Mine, Beijing 100013, China
3.
Beijing Engineering and Research Center of Mine Safe, Beijing 100013, China

摘要

摘要: 网络切片是5G网络的一项重要技术，现有矿用5G研究主要集中于系统架构及应用场景，缺乏对切片技术具体实现方案的研究。针对该问题，通过分析矿用5G网络的基本结构及智能矿山的应用需求，提出利用FlexE的通道化功能实现传输网的资源分配及业务隔离，从而在同一网络基础设施上构建多个按需定制的专用逻辑网络，即网络切片。根据当前矿用信息通信系统及智能矿山应用情况，提出矿用5G网络基础切片划分+基于带宽权重的传输资源分配方法，将网络划分为低时延业务、大带宽业务、工业环网业务、特定业务（无人化协同控制）及预留业务5类切片，并通过进一步的虚拟专用网(VPN)划分方法，设计差异化的带宽权重，以确保充足的传输资源，避免信道拥塞。根据不同业务对时延、带宽的要求，定义具体的5G QoS标志符（5QI），并根据5QI进行业务映射及隔离，为各类业务提供所需的服务级别。在实验室条件下，对矿用5G网络系统的业务调度时间和端到端时延2项指标进行测试，结果表明：网络切片与传统的尽力而为服务模型相比，能够实现更加高效的业务调度，在高负载的场景下，平均调度时间减少了10.9%；在同一业务切片内，矿用5G网络的平均端到端时延为10.33 ms，为无人化协同控制等业务的实施提供了必要条件。
- 智能矿山 /
- 矿用5G网络 /
- 网络切片 /
- 切片分类 /
- 切片带宽权重 /
- 业务映射 /
- 业务调度时间 /
- 端到端时延
Abstract: Network slicing is an important technology in 5G networks. The existing research on mine 5G mainly focuses on system architecture and application scenarios, lacking specific implementation solutions for slicing technology. In order to solve the above problem, by analyzing the basic structure of mine 5G networks and the application requirements of intelligent mines, it is proposed to use the channelization function of FlexE to achieve resource allocation and business isolation in the transmission network. It constructs multiple on-demand customized dedicated logical networks on the same network infrastructure, namely network slicing. According to the current applications of mine information communication systems and intelligent mines, a method of mine 5G network basic slicing+transmission resource allocation based on bandwidth weight is proposed. The network is divided into five types of slicing: low delay service, large bandwidth service, industrial ring network service, specific service (unmanned cooperative control) and reserved service. Through further virtual private network (VPN) division method, differentiated bandwidth weight is designed to ensure sufficient transmission resources and avoid channel congestion. The specific 5G QoS identifiers (5QI) are defined based on the requirements of different services for latency and bandwidth. The mapping and isolation based on 5QI are obtained to provide the required service levels for various businesses. Under laboratory conditions, two indicators of business scheduling time and end-to-end delay are tested for mine 5G network systems. The results show that network slicing can achieve more efficient business scheduling than traditional best-effort service models. In high-load scenarios, the average scheduling time is reduced by 10.9%. Within the same business slice, the average end-to-end delay of the mine 5G network is 10.33 ms, providing necessary conditions for the implementation of unmanned collaborative control and other services.
- intelligent mine /
- mine 5G network /
- network slicing /
- slicing classification /
- slicing bandwidth weight /
- business mapping /
- business scheduling time /
- end-to-end delay

HTML全文

图 1 矿用5G网络的系统架构

Figure 1. System architecture of mine 5G Network

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图 2 网络切片总体架构

Figure 2. Architecture of network slicing

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图 3 FlexE技术参考模型

Figure 3. Reference model of FlexE technology

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图 4 FlexE的通道化功能

Figure 4. Channelization capabilities of FlexE

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图 5 网络切片设计方案

Figure 5. Design scheme of network slicing

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图 6 业务映射及隔离

Figure 6. Service mapping and isolation

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图 7 测试网络拓扑

Figure 7. Testing network topology

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图 8 低负载下的调度时间

Figure 8. Scheduling time under low load

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图 9 高负载下的调度时间

Figure 9. Scheduling time under high load

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图 10 时延测试结果

Figure 10. Results of latency testing

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表 1 典型终端的网络需求

Table 1. Network requirements of typical terminals

序号	终端类型	速率		时延要求/ms
序号	终端类型	上行	下行	时延要求/ms
1	CPE	100 kbit/s	100 kbit/s	25
2	5G手机	100 kbit/s	100 Mbit/s	25
3	矿压传感器	100 kbit/s	100 kbit/s	100
4	车载终端	100 kbit/s	100 kbit/s	25

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表 2 常见业务类型及权重值

Table 2. Common service types and weight values

序号	矿用系统及应用	权重等级	权重值
1	矿用5G通信系统	1	1.0
2	矿用4G通信系统
3	安全监控系统
4	定位系统
5	广播系统
6	调度指挥系统
7	供电系统
8	特定业务（无人化协同控制）
9	自动风门系统	2	0.9
10	主运胶带系统
11	矿压监测系统
12	水文监测系统
13	视频监控系统	3	0.8
14	WiFi通信系统	3	0.8
15	其他环网非安全类业务	4	0.7

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