3GPP 23.501 v20.2.0 — the document's own text
5.26 Configuration Transfer Procedure
Taught in 27. Overload, energy, deployment and the rest (The 5G system architecture, in depth).
The purpose of the Configuration Transfer is to enable the transfer of information between two RAN nodes at any time via NG interface and the Core Network. An example of application is to exchange the RAN node's IP addresses in order to be able to use Xn interface between the NG-RAN node for Self-Optimised Networks (SON), as specified in TS 38.413 [34].