The demand for wireless communication is growing explosively. Among other things, due to the arrival of 5G, the use of smart devices, and the increasing use of drones, frequencies are scarce. The Digital Infrastructure Inspectorate (RDI) therefore investigated in a test environment whether license holders can share frequencies. A system called Dynamic Spectrum Management and Sharing was used. The results of this pilot are promising.
The research took place between December 2024 and September 2025. The goal was to investigate whether scarce radio spectrum can be shared more intelligently. The system Dynamic Spectrum Management & Sharing was used. DSMS is a system that can automatically and in real-time allocate frequencies among users without causing interference. Users share the same frequency band but in a more efficient way than usual.
Testing was done with two users in the 3.8-4.2 GHz band: the private 5G network of the Port of Rotterdam was added as the second user to this band. The primary user is the satellite connection provider Speedcast in Biddinghuizen.
Measurements show that the DSMS system worked well and successfully protected Speedcasts services. In the future, the technology could be more widely deployed among multiple networks and in other frequency bands.