Editing My 3GPP 23.501 Notes (section)

==§ 4.2.7 Reference Points ==

The 5G System Architecture reference points:

{| class="wikitable"
|+ Reference Points
|-
! Reference !! Endpoints  !! Notes
|-
| N1
| UE and AMF
|
|-
| N2
| (R)AN and AMF
|
|-
| N3
| (R)AN and UPF
|
|-
| N4
| SMF and UPF
|
|-
| N6
| UPF and Data Network
|
|-
| N9
| UPF and UPF
|
|}

The following reference points are of interest to me and show the interactions that exist between the NF services in the NFs. See spec for full list of reference points. These reference points are realized by corresponding NF service-based interfaces and by specifying the identified consumer and producer NF service as well as their interaction in order to realize a particular system procedure.

{| class="wikitable"
|+ Reference Points
|-
! Reference !! Endpoints  !! Notes
|-
| N8
| UDM and AMF
|
|-
| N10
| UDM and SMF
|
|-
| N11
| AMF and SMF
|
|-
| N12
| AMF and AUSF
|
|-
| N14
| AMF and AMF
|
|}