We might need refactoring in the way we handle UE Context in the gNodeB.
Two use cases:
5GC has data or NAS messages for UE, UE receives a Network Initiated Service Request and switches back to CM-CONNECTED to receive data.
UE has data or NAS messages for 5GC / traffic being done on UE's VRF while the UE is in CM-IDLE, and triggers a Service Request to switch back to CM-CONNECTED to send data.
gNodeB should not encapsulate UE's traffic into GTP-U and send it towards UPF untill UE has switched back to CM-CONNECTED.
Supports the following scenario:
Two use cases:
See https://www.sharetechnote.com/html/5G/5G_ServiceSetup.html