3GPP 38.300 v19.3.0 — the document's own text
4.10.3.2 Protocol Stacks for NG Control Plane
Taught in 4. What NR actually is, in the shape its own document gives it (TSG RAN — the group that specifies the radio, overview).
The figure below shows the NG-C protocol stack with the NR Femto GW.
When the NR Femto GW is not present, NG-C is defined as specified in clause 4.3.1.2, and all the NGAP procedures are terminated at the NR Femto node and the AMF.
