Cross-Border Interference Generated by LEO Mobile Satellite Systems on Terrestrial IMT Equipments
Year: 2026
Type: conference-paper
Abstract: This paper investigates the potential for crossborder interference generated by Low Earth Orbit (LEO) satellite constellations providing Direct-to-Cell (D2C) services to terrestrial International Mobile Telecommunications (IMT) equipment. Motivated by Agenda Item 1.13 of the World Radiocommunication Conference 2027 (WRC-27), the study examines the impact of satellite systems operating in frequency bands traditionally allocated to IMT on terrestrial networks in neighboring countries, arising from the large coverage footprints of satellite beams. Using Italy as a case study, MATLAB-based simulations have been developed to assess the interference levels experienced by both IMT base stations and user terminals. Several interference mitigation strategies are evaluated, including the implementation of buffer zones with widths of up to 100 km. The results provide quantitative insights into the effectiveness of these mitigation techniques and contribute to the development of globally harmonized regulatory frameworks and multilateral coordination mechanisms aimed at ensuring the coexistence of satellite and terrestrial IMT systems.
Author: Massimo Celidonio
Institution: Fondazione "Ugo Bordoni"
Language: English
Subfield: Aerospace Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
OpenAlex ID: W7202392023