Objective 1: Define the main building blocks of the terrestrial segment in the 3D network, identify a set of use cases, system requirements, and key technological enablers. It includes the analysis of several use cases to extract the different 6G requirements in addition to the identification of the key technical enablers to ensure a cost-effective, ubiquitous, reliable, secure, and scalable.

Objective 2: Design of air-interface, antenna solutions and resource management techniques. Design flexible numerologies, waveforms, and access schemes to deal with peculiarities of the satellite channel for both low and high orbital satellites. Additionally, investigate beamforming and antenna solutions like large-scale MIMO schemes to enhance the capacity of the non-terrestrial network and develop efficient radio resource management strategies to cope with highly dynamic scenarios expected in 6G.

Objective 3: Enhance spectrum efficiency of the communication networks. Develop beamforming solutions for non-terrestrial network terminals using EHF (Extremely High frequencies) to enable high-throughput connectivity, multi-orbit operation and efficient spectrum usage.

Objective 4: Explore multi-access Edge computing and develop innovative approaches based on artificial intelligence for operation and optimization at all system levels. Develop multi-access edge computing techniques to reduce content retrieval latency of the network and efficiently perform the computation offloading when needed enabling what is called processing in the sky. Additionally, consider the cooperation and interplay between the different non-terrestrial network components to enable an efficient computation handover and develop AI-based solution to tackle the huge complexity of the system and provide the 3D network with the necessary intelligence, with adaptive and flexible optimization tools, and with predictive configurability.

Objective 5: Evaluate and validate the solutions by means of Proof-of-Concepts. AROMA3D-Space will perform several experimental validations and demonstrations of selected techniques developed in the project.