Sustain-6G Sustainability Requirements Definition Methodology and Its Application in Mobile Network Operator Use Case

This paper presents a sustainability requirements definition methodology developed within the SUSTAIN-6G project. The proposed methodology provides a structured approach to deriving sustainability requirements for 6G use cases considering the resulting ecosystem with different stakeholders. The paper defines the steps to derive sustainability requirements, making use of identified general sustainability themes and then proceeding to use case level analysis, where stakeholders' sustainability needs, key values and key value indicators (KVIs) are identified. KVIs are then consolidated across stakeholders to form the basis for deriving use case specific sustainability requirements. The paper illustrates the proposed methodology by applying it to a 6G Mobile Network Operator's (MNO) mobile broadband use case. The results show consolidated KVI list for the MNO use case to form the basis for deriving sustainability requirements.