TDF expands 5G Broadcast trial across French cities

TDF has launched a large-scale 5G Broadcast experiment that uses its existing TNT transmitter network to deliver free television reception to smartphones without requiring a SIM card, Wi-Fi connection or mobile data.

TDF activates broadcast zones in multiple urban areas. The initiative follows an announcement at MWC 2026 and became operational after an event held in Paris on June 25. Coverage now reaches several cities including Paris, Reims, Bourges and Le Havre, leveraging landmark sites such as the Eiffel Tower and the Meudon transmitter.

The trial builds on earlier tests conducted during the 2023 French Open tennis tournament and the Paris 2024 Olympic Games. Those experiments allowed TDF and France Télévisions to validate reception on the move with configured smartphones provided to more than 200 testers during the Olympics.

5G Broadcast mirrors terrestrial TV principles for mobile devices. A single signal is transmitted via Hertzian waves and received simultaneously by all compatible terminals. Unlike conventional streaming that relies on individual IP streams, the technology avoids any impact on quality from the number of users and eliminates dependence on internet infrastructure.

TDF positions the service as a continuation of TNT that remains free, accessible and resilient for mobile uses. Karim El Naggar, TDF chief executive, described it as a complementary route for broadcasting content to wide audiences without the constraints of data networks.

The service targets collective viewing rather than replacing existing platforms. It does not substitute for TNT, cable, satellite or streaming services but adds a building block designed for mass audiences and simultaneity. Terrestrial broadcasting maintains quality of service and robustness during major events when connected networks can become congested, as seen in past sporting competitions or series launches.

Publishers gain an additional way to extend free television reach to mobile screens, which now represent a significant share of video consumption. The approach differentiates from OTT offerings or ISP IPTV by preserving a terrestrial broadcasting logic focused on linear channels.

Device compatibility remains the primary barrier to adoption. No mass-market smartphone currently supports reception of 5G Broadcast on the n108 band used in France. Although chips from manufacturers such as Qualcomm are theoretically capable of decoding the signal, activation depends on decisions by device makers and support at the system level.