A network architecture for 5G and 6G satellites based on Integrated access and backhaul

With the rapid evolution of 5G and 6G technologies, satellite networks are playing a crucial role in extending global connectivity. We present a novel multi-orbit satellite network architecture based on Integrated Access and Backhaul (IAB) technology. The proposed architecture addresses key challenges, including high propagation delays in GEO satellites and frequent handovers in LEO networks, by optimizing handover strategies and ensuring seamless transitions between satellite layers. Furthermore, we propose an authorization mechanism for terminals to address the technical requirements. These advancements aim to enhance network efficiency, throughput, and user experience, particularly in remote areas where traditional infrastructure is limited.