Fairspectrum, a DYNASAT partner, performed a live demonstration on the exhibition floor of the Dynamic Spectrum Alliance (DSA) Global Summit 2022 in Paris on September 12-14,2022. (France).
The demonstration by Fairspectrum aimed to show spectrum sharing between a Non-Geostationary Orbit (NGSO) NTN and a terrestrial network (TN) in the same frequency band. This would result in a significant increase in network coverage while maintaining the primary terrestrial network’s performance.
Finding suitable frequency bands that can provide 5G, Beyond 5G, or 6G broadband connectivity is normally difficult and time-consuming. Furthermore, many terrestrial capacity bands are only deployed in urban areas.
Fairspectrum proposed a dynamic spectrum access sharing arrangement in which satellite networks are permitted as long as they do not interfere with terrestrial networks.
Results and benefits
The demonstration highlighted the capabilities of NTN in filling the gaps with – 6 dB and even better with 0 dB. It has also demonstrated that when TN and NTN operators work together, spectrum utilization efficiency can be improved further.
Furthermore, there appears to be a continuous process of allocating IMT bands for 3GPP terrestrial technologies; some of these bands may also be used by NTN, simplifying the search for and allocation of broadband frequency bands. In fact, areas that are not currently covered by TN may benefit from NTN coverage of the assigned frequency bands.
DYNASAT’s next steps
Such demonstrations are critical to DYNASAT’s research and development efforts. The project aims to evaluate how innovative techniques for bandwidth-efficient transmission and efficient spectrum utilization can be designed for satellite architectures. The ultimate goal is to significantly improve the performance of a satellite network infrastructure, fully integrated into the 5G ecosystem, which is pivotal to serve the mass-market and professional 5G user equipment, particularly in unserved or underserved areas.
Find out more about Dynasat’s demos in our video session.