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IN DEPTH: The World’s First 5G Wired Subway
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The World’s First 5G Wired Subway
Next-Level Tech Dominance!
By Austin Chang

BT 2020201 In depth 01China has proved its technology prowess, once again! This time by rolling out a massive plan to wire its extensive subway network with superfast 5G technology. The wireless revolution was first put into play in both the Chengdu and Changchun subway systems in Sichuan province early this year. The Taipingyuan Station of the city's subway line 1 is covered by high-speed Wi-Fi signal converted from 5G network.
 

According to industry experts, this experiment is considered indicative of China's pioneering vision in 5G technology. Especially, the network tests starting from Taipingyuan Station to Cujin Station are already setting the foundation for the 5G-enabled construction of the whole route. The line will link with Chengdu Shuangliu International Airport, which already has 5G network service.
 

This is not just China's first 5G indoor distribution network, but also a one-of-its-kind demonstration. It is based on the 2.6GHz frequency range, compared to the previous 5G base stations deployed outdoors to expand the breadth of the 5G network. The indoor distribution system focuses on the depth coverage enabling signals to reach every corner of the station.
 

Imagine visitors from around the world taking a look at scenic spots as soon as they arrive! For instance, the giant panda base and the Dujiangyan Irrigation System through 5G plus virtual reality. Or people playing high-bandwidth virtual-reality games in the subway - how does it sound?
 

While it’s probably a bad idea to imagine a subway packed with people blinded by VR goggles - it may soon become a common sight in the subways of China! Well, whatever the future holds, this development signifies that China's 5G network constructions have entered the fast lane and that it is racing ahead of its contemporaries.
 

中国推出一项宏伟计划:在其复杂的地铁网络布局超快的5G网络。今年年初已在四川成都和长春地铁系统中启用。该城市地铁1号线的太平苑站覆盖了5G网络高速Wi-Fi信号。这一发展标志着中国的5G网络建设已进入快车道,并且它正在领先于同时代的其它国家。

BT 202001 IN DEPTH 06Piloting 5G Communication in Multiple Subway Networks

From live broadcasts of townhall meetings, smooth conference calls in a crowded metro, and quick-as-a-flash downloads of high-resolution videos, China aims at turning technological dreams into reality with its superfast 5G network technology. With the first batch of 5G applications in the Sichuan province's subway, China has formally unveiled a new era of wireless technology. Here are the other pilot subway networks in China where you can enjoy lightning-fast internet.
 

5G网络在复杂地铁系统测试

2019年1月5日,四川移动正式宣布,继2018年底在成都远洋太古里开通全国首个5G示范街区之后,全国首个5G地铁站在成都正式开通。在成都地铁10号线太平园站内,由移动5G网络转化而来的高速WiFi信号已经悄然覆盖整个站厅,这是四川移动继太古里首个5G示范街区之后,开通的国内首个基于2.6GHz频段的5G数字化室内分布系统网络,标志着5G全场景连续覆盖即将成为现实,室内数字化新经济点燃在即。

BT 202001 IN DEPTH 02Line 4 of Beijing Subway

China Mobile joined hands with the Beijing subway to set up a 5G station on line 4 of the subway network. The Beijing subway is the first to offer a 5G network across an entire line that equipped all ten stations along the metro’s Line 16 with super-fast internet access. After the local media tested the new subway 5G network speed, it measured download speed of 933 Mbps and upload speeds of 87Mbps, significantly higher than speeds found on an average 4G network that can seamlessly stream high-definition content like 4k video.
 

北京5G地铁

早在2018年10月,京港地铁联手中国移动北京公司,就已在14号线九龙山站完成了全国第一个可向5G网络平滑演进的地铁试验站,为后续5G网络引入积累了经验。2019年5月份,京港地铁16号线开始5G网络建设。两周时间,京港地铁完成了16号线北段包括10个站台、站厅和9个隧道站点的设备安装和调试工作,实现了车站及双向所有隧道全覆盖,即10站9区间上下行全覆盖。根据测试结果,16号线站台移动5G速率可达下载速率933Mbps、上传87Mbps,足以支持高清视频直播和回传、高清视频通话和VR实时监控等5G业务。

BT 202001 IN DEPTH 03Zhengzhou Subway Line

The Zhengzhou Subway line in Central China has also been covered by 5G networks of the country’s top three telecom operators. The successful implementation by China Mobile, China Union and China Telecom in Zhengzhou has been a stepping stone in the development and application of 5G technologies in China. This 5G network provides an average download speed of more than 700 Mbps on the subway platforms and around 630 Mbps between stations. The network enables passengers to easily watch live-streaming videos or play virtual-reality games inside the metro. Since ensuring a steady and strong signal inside the train was a challenge, the equipment that has been used to provide the 5G coverage in this subway line is the first-of-its-kind in the world.
 

郑州地铁5号线

河南通信部门将郑州地铁5号线快速建成国内首条涵盖三家电信运营企业5G网络的地铁,创新提出了“新型地铁E站”等多项新型产品及解决方案,为后续国内乃至全球范围内的地铁隧道5G建设施工提供了高可靠性的技术参考。经测试,郑州地铁5号线站厅台平均下载速率均达到了700Mbps以上,地铁列车在隧道内行车过程中车厢内下载速率达到了630Mbps(双缆部署,后续部署四缆后可达到1Gbps以上)。

BT 202001 IN DEPTH 04Shenzhen Subway Line

China's southern tech hub Shenzhen also piloted the use of the 5G wireless network to transmit a huge volume of data from the subway train to the station. The test on Line 11 shows a transmission of 25 GB of data to the station's control room in just 150 seconds. The speedy transmission of data, including the train's operation information and surveillance video, is expected to support futuristic tech applications, such as automatic searches for missing passengers or lost luggage and also to boost overall subway efficiency. The subway 5G communication system is even designed in a manner to facilitate emergency situations with intelligent behaviour analysis and facial recognition to locate dangerous people and behaviours in the train.
 

深圳地铁11号线试行5G车地无线通信

2019年5月20日,深圳地铁集团联合华为技术有限公司,举行“智慧地铁5G加速-地铁5G车地通信全球首次应用”发布会。利用5G技术实现车载数据快速自动传输,25GB的数据完成传输只需要150秒,未来5G技术将在智慧地铁各个领域广泛应用。


地铁的车地通信是要在列车高速运行过程中,把车载数据向车站、车辆段、停车场等属地进行及时传输,以实现地铁运营方对乘客状况、列车设备及运行状态、隧道及弓网等情况的监测。受技术现状制约,目前车地无线网络带宽不足,传输速率不稳定,车载数据基本无法实现及时下传,只能储存在车上的硬盘中,待列车下线后再由人工上车拷贝。不但耗时耗力,可靠性和实时性也无法保障,直接影响地铁调度快捷、流畅地查看列车监控,也成为地铁运维效率提升的限制瓶颈。

BT 202001 IN DEPTH 05Takeaway

Internet in subways isn't a new phenomenon! Many technologically advanced countries have equipped their subway systems and buses with Wi-Fi. But China takes 5G quite seriously and is already ahead of the United States in infrastructure deployment, going by a report by Deloitte. A recent instance wherein Huawei helped stream CCTV’s Chinese New Year Gala over a 5G network in 4k ultra high definition shows just how serious China is with its 5G applications. Though 5G applications on subways bring multiple benefits to users, they could also aid in surveillance and security, which means the government can use such tools for facial recognition and positioning technologies, and guarantee a high safe environment.
 

许多技术先进的国家都已经为其地铁系统和公共汽车配备了Wi-Fi。德勤(Deloitte)公布的一项研究报告显示,近年来,中国在下一代移动互联网技术5G上的投入比美国多出240亿美元。地铁上的5G应用不仅用户带来了诸多好处,也有助于监管和安全,这意味着政府可以将其用于面部识别和定位技术,从而确保更安全的环境。

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