Borussia Dortmund and 1&1 equip SIGNAL IDUNA PARK with 5G technology

Thanks to LTE and 5G technology, all visitors will have first-class mobile reception while they are at the stadium. That goes not only for 1&1 customers, but also to customers of other mobile networks.

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1&1 are the first and only network operator in Europe to rely entirely on innovative Open RAN technology for the construction of the fourth German mobile network. All network functions are located in the private cloud and are controlled via software. Standardised interfaces enable flexible collaboration with the safest and best manufacturers, without being reliant on Chinese network components. This makes the new 1&1 Open RAN significantly different from traditional networks, which are often provided by only one network supplier. SIGNAL IDUNA PARK will thus become part of the most modern 5G network in Germany and Europe.

The mobile phone supply for the Euros in the open areas of the stands will be ensured using 128 mobile phone antennas, as well as an indoor supply. Already this season, a new Wi-Fi network has been available in the hospitality areas, which is made possible by a redundant 10 Gigabit fibre optic cable from 1&1 Versatel, as well as state-of-the-art technology from the network manufacturer Extreme Networks with more than 40 kilometres of network cabling.

Fans can already see many of the new 5G antennas under the stadium’s roof. As part of the renovation, the previous Wi-Fi technology with more than 900 antennas, which enabled fans to access the Internet inside the stadium, had to be dismantled. The Wi-Fi network had been in operation since 2014 and no longer met the current transmission standards. In the 2023/24 season, therefore, there will initially be no public Wi-Fi in the stands at SIGNAL IDUNA PARK.