The evolution toward 6G networks requires fundamental architectural innovations that can simultaneously lower costs, improve sustainability, and enable new services. The current landscape remains fragmented, often energy intensive, and heavily dependent on proprietary solutions, limiting the ability of operators to meet future performance, resilience, and sovereignty requirements. PROSPERO addresses these challenges by proposing a Uniform, Integrated and Simplified (UIS) 6G architecture that unifies connectivity, intelligence and sustainability within a coherent framework. The project is framed around three operator driven business cases: lowering Total Cost of Ownership, enabling new revenue sources, and reinforcing network resiliency.

To achieve these objectives, PROSPERO introduces five strategic paradigms: architectural simplification to reduce fragmentation and deployment costs; global operations that enable trusted collaboration across multiple stakeholders; native integration of AI for automation and novel services; sustainability by design through energy aware mechanisms and resource efficient programming; and seamless management frameworks for resources, functions and AI models across heterogeneous domains. These paradigms are translated into concrete solutions that will be designed and validated through targeted Proof of Concepts to demonstrate both technical feasibility and operator relevance. By following this approach, PROSPERO contributes to the expected impacts of the program: the UIS architecture reduces reliance on proprietary technologies and strengthens European sovereignty. Energy efficiency and resource optimization support the green transition. AI enabled orchestration across cloud, edge and operator environments fosters new business models and vertical applications. Finally, alignment with standardization activities ensures European leadership through a validated blueprint for future 6G networks.