F1AP refactoring to align with O-RAN.WG5.C.1-v11
The scope of this MR is to align the F1AP to the O-RAN.WG5.C.1-v11 specification.
Changelog
- Minimal support for F1AP GNB DU Configuration Update procedure
- Send Security Mode Command (SMC) using DLRRCMessageTransfer and make the SMC independent from the UE Context Setup
- Refactor UE Context Setup handler in RRC
- Send DRBtoAddList inside the UE Context Setup Request
- Clean up the F1 Context Setup Request message
- Trigger UE Context Setup after E1 Bearer Establishment
- Send only one RRCReconfiguration message triggered when PDU Sessions Establishment is accepted