Hi Experts.
5G SA device tries to register network sending registration request to AMF and EPS attach at the same time.
Identity req comes in DL from AMF but gNB does not deliver it to UE.
RRC setup is complete.
What might be the cause?
UE sends 1 single message includes registration request and attach request which is forwarded to AMF anybody know how to follow that procedure in 3gpp?
You can try 3GPP TS 24.501 → Non-Access-Stratum (NAS) protocol for 5G System (5GS) and 3GPP TS 23.502 → Procedures for the 5G System (5GS).
Also try here: 3GPP Guru
Have you checked this 5G Standalone Access Registration | by EventHelix | 5G NR | Medium ?
Yes, thanks.
But it is telling the story of a single standard registration to AMF.
In my case I see EPS attach too within registration request.