5.51.2.2.1 General

The Energy Information Function (EIF) collects the UE related Energy Consumption information including Node-level energy consumption information, Node-level data volume from OAM and data volume of the required granularities (i.e. S-NSSAI, PDU Session and/or Service Data Flow) from UPF (via SMF) and corresponding gNB ID(s) and (I-) UPF ID(s) from SMF. The EIF can expose the energy consumption at the requested granularity over a certain time window (i.e. the total energy consumed from a start time to an end time) or periodically (i.e. every reporting period of e.g. 10 minutes).

Node-level energy consumption is collected network-wide at a configurable starting time with interval T such that the Energy Consumption information reported to the EIF is time-aligned.

The reporting period for periodic reporting by the EIF to its consumers can only be a multiple of this time interval T and is time-aligned to the node-level energy consumption reporting occurring at every time interval T configured in the network.

NOTE: If the reported Energy Consumption information is not time-aligned, it cannot be aggregated.