3GPP 23.501 v20.2.0 — the document's own text

5.51.7 Energy-Aware NF discovery and selection

Taught in 27. Overload, energy, deployment and the rest (The 5G system architecture, in depth).

To enable Energy-Aware discovery and selection of a NF, its NF profile can be augmented with Energy-Related NF profile attributes defined in Table 5.51.7-1.

Table 5.51.7-1: Energy-Related NF profile attributes

Attribute	Description
Energy Priority Information	Value of Energy Priority Set by the operator (e.g. taking into account various aspects such as cost of energy or other energy related information outside the scope of this document). It indicates the priority relative to other NFs of the same type from an energy standpoint. If the Priority attribute defined in TS 29.510 [58] is also used in the NF profile, the Energy Priority indicates a further priority based on energy among NFs with the same Priority attribute value in the NF profile.

Attribute

Description

Energy Priority Information

Value of Energy Priority Set by the operator (e.g. taking into account various aspects such as cost of energy or other energy related information outside the scope of this document). It indicates the priority relative to other NFs of the same type from an energy standpoint. If the Priority attribute defined in TS 29.510 [58] is also used in the NF profile, the Energy Priority indicates a further priority based on energy among NFs with the same Priority attribute value in the NF profile.

The following applies:

A NF service consumer that supports Energy-Aware NF discovery and selection shall take into account any NF profile attributes in Table 5.51.7-1 from the NF profiles discovered from NRF by using the NF Discovery and Selection procedure (and subsequent NF profile updates if the NF subscribes to NF profile updates), for the selection of a target NF. The NRF also takes these parameters into account for discovery and selection.