This Recommendation specifies the requirements and framework for the support of User Equipment (UE)-to-UE session management in future networks including International Mobile Telecommunication (IMT)-2020 network. The Recommendation highlights the motivation of supporting UE-to-UE session management to meet emerging service demands. It emphasizes a flexible, distance-based, on-demand network resource allocation and accounting model, enabling affordable access for small and medium-sized organizations without regular financial commitments.