위상 배열 안테나와 다중 사용자 분할 빔포밍을 통한6G 이동통신과 저궤도 위성 시스템 간 간섭 분석

초록

This study analyzed the interference impact of the next-generation mobile communication technology, 6G (IMT-2030), on low Earth orbit (LEO) satellite systems under Agenda Item 1.7 adopted by the World Radiocommunication Conference (WRC-27). Specifically, we evaluated and compared the interference mitigation performance of two beamforming approaches based on the active antenna system (AAS) model used in IMT-2030 systems: an extended AAS model incorporating a subarray structure and a model applying zero-forcing beamforming techniques. Based on the modeling methodologies and key system parameters defined by the International Telecommunication Union Radiocommunication Sector (ITU-R), we quantitatively assessed the aggregate interference from the IMT-2030 base stations when sharing the same frequency band as the satellite uplink. Through this analysis, we evaluated the manner in which different beamforming techniques could mitigate interference and support coexistence with satellite systems.

키워드