Wireless Communication System of 5G Vehicle and Ground Fused by Public and Private Network

LI Hui; ZHANG Xin-bo

doi:10.13756/j.gtxyj.2021.03.015

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Wireless Communication System of 5G Vehicle and Ground Fused by Public and Private Network

- Wireless Communication System of 5G Vehicle and Ground Fused by Public and Private Network
- Study on Optical Communications Issue 3, Pages: 72-78(2021)
- 作者机构：
  
  1.中信科移动通信技术有限公司，武汉　430205
  2.武汉虹信科技发展有限责任公司，武汉　430205
- 作者简介：
- 基金信息：
- DOI：10.13756/j.gtxyj.2021.03.015
  CLC： TN929.531
- Published：10 June 2021，
  
  Received：29 September 2020，
扫描看全文
LI Hui, ZHANG Xin-bo. Wireless Communication System of 5G Vehicle and Ground Fused by Public and Private Network. [J]. Study on Optical Communications (3):72-78(2021)
DOI：

LI Hui, ZHANG Xin-bo. Wireless Communication System of 5G Vehicle and Ground Fused by Public and Private Network. [J]. Study on Optical Communications (3):72-78(2021) DOI： 10.13756/j.gtxyj.2021.03.015.

摘要

第四代移动通信技术（4G）的长期演进技术（LTE）受国内1 785~1 805 MHz专网频段制约，轨道交通对于双网冗余配置和专门业务必须保证稳定的最低带宽要求，这使得LTE-Metro（LTE-M）综合承载系统的服务能力受到很大限制。针对上述问题，文章提出了对4G基站、核心网和车载终端适配器单元（TAU）进行升级，加入第五代移动通信技术（5G）公网非独立（NSA）基站的方案，利用4G专网作为列车自动运行通信控制（CBTC）系统业务的主网络，5G网络作为承载CBTC系统的辅网络，5G基站承载轨道交通专网的大带宽业务，实现了4G专网与5G公网融合以承载通信系统的大带宽需求。

Abstract

The 4th Generation Mobile Communication Technology (4G) Long Term Evolution (LTE) is restricted by the frequency band of 1 785~1 805 MHz private network in China. Rail transit must ensure stable minimum bandwidth requirements for dual network redundancy configuration and special services

which greatly limits the service capacity of LTE-M integrated bearing system. In view of the above problems

we propose to upgrade the 4G base station

core network and vehicle mounted Terminal Adapter Unit (TAU). and add the 5th Generation Mobile Communication Technology (5G) public network Non-Standalone (NSA) base station. Therefore

4G private network can be used as the main network of Communication Based Train Control (CBTC) system service

and 5G network is used as the auxiliary network to carry CBTC system. The 5G base station can also be used to carry large bandwidth service of rail transit private network. Our propose solution realizes the integration of 4G private network and 5G public network to carry the large bandwidth requirements of the communication system.

关键词

轨道交通4G专网5G公网无线通信

Keywords

rail transit4G private network5G public networkwireless communication

references

卢锦君.5G技术在轨道交通内的应用研究[J].无线互联科技, 2019(16): 9-10.

杨亮, 刘艳霞.浅析5G通信技术在城市轨道交通中的应用[J].电子世界, 2019(3): 189, 191.

毛磊, 翟浩杰, 尹尚国.5G在轨道交通行业的应用探讨[J].移动通信, 2020, 44(1): 63-70.

T/CAMET 04005.1-2018，城市轨道交通车地综合通信系统(LTE-M)总体规范第1部分：系统需求[S].

T/CAMET 04005.2-2018，城市轨道交通车地综合通信系统(LTE-M)总体规范第2部分：总体结构及系统功能[S].

T/CAMET 04007.1-2018，城市轨道交通车地综合通信系统(LTE-M)设备技术规范第1部分：系统设备技术[S].

T/CAMET 04007.2-2018，城市轨道交通车地综合通信系统(LTE-M)设备技术规范第2部分：终端设备技术[S].

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