Korea Subways

Samsung Boosts Wi-Fi Connections in Subways using 5G mmWave

Using Samsung’s 5G mmWave Compact Macro, subway passengers enjoy 25 times faster Wi-Fi speed

Samsung has successfully demonstrated improved Wi-Fi service in a fast-moving subway train using its 5G mmWave solution as a backhaul in Seoul, Korea. The trial demonstrated how the use of 5G mmWave can significantly boost legacy Wi-Fi service in a crowded, public setting.

Samsung reached Wi-Fi downlink speeds of 1.8Gbps using a Samsung Galaxy S21 Ultra on a moving subway train in the trial. This speed is approximately 25 times faster than the current average speed of 71Mbps on Seoul’s subway lines. The use of Samsung’s 5G Compact Macro helped boost Wi-Fi data speeds by leveraging the ultra-high capacity of 5G mmWave spectrum as a backhaul.

This trial took place in parts of Seoul Metro, covering five stations on the subway line circulating through major downtown areas. The enhanced Wi-Fi service was powered by Samsung’s 5G mmWave Compact Macro, installed along the railways and utilizing 800MHz in the 28GHz spectrum band.

In addition to delivering faster Wi-Fi speeds, the wide bandwidth of mmWave enables exceptional mobile experience on smartphones and tablets in hotspots, such as sports stadiums and shopping malls. 5G use cases have expanded to various business areas including public transportation, such as high-speed trains, buses, and more.

“We are pleased to deliver an enhanced mobile experience, with faster download speeds and connections for subway passengers, leveraging our advanced 5G mmWave solution,” said Seungil Kim, Vice President and Head of Korea Business, Networks Business at Samsung Electronics.

“Our successful speed trial on public transportation proves the high potential of 5G mmWave, demonstrating its capability to complement existing wireless technologies, and boosting the performance of legacy networks, all while providing a foundation for future telecommunication services.”

Samsung’s Compact Macro brings together a baseband unit, radio and antenna in a single form factor. This compact and lightweight solution can be easily installed on the sides of the buildings as well as on utility poles for a swift buildout of 5G networks.

Samsung’s Compact Macro is the first 5G product to be listed on the U.S. National Information Assurance Partnership (NIAP) Product Compliant List (PCL) and the Canadian Centre for Cyber Security’s Certified Product List.

My Cart Close (×)

Your cart is empty
Browse Shop

Rapid Mobile

Rapid Mobile uses cookies, tokens, and other third party scripts to recognise visitors of our sites and services, remember your settings and privacy choices, and - depending on your settings and privacy choices - enable us and some key partners to collect information about you so that we can improve our services and deliver relevant ads.


By continuing to use our site or clicking I Accept, you agree that Rapid Mobile and our key partners may collect data and use cookies for personalised ads and other purposes, as described more fully in our privacy policy.


You can change your settings at any time by clicking Manage Settings or by visiting our Privacy Centre for more detailed information.


Privacy Settings saved!
Cookie Services

We need your consent so that we and our trusted partners can store and access cookies, unique identifiers, personal data and information about your browsing behaviour on your device. This enables us to serve relevant content and advertising to you, and to improve the service that we provide to our readers. This only applies to rapidmobile.biz.Because we respect your right to privacy, you can choose not to allow some types of cookies. Click on the different category headings to find out more and change our default settings. However, blocking some types of cookies may impact your experience of the site and the services we are able to offer.

These cookies allow us to count visits and traffic sources, so we can measure and improve the performance of our site.

We track anonymized user information to improve our website.
  • _ga
  • _gid
  • _gat

Save my preferences