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. This enables the OAI CU to interact with a LITEON DU (and possibly others).
Changelog
- Add support for F1AP GNB DU Configuration Update procedure (fully)
- Send Security Mode Command (SMC) using DLRRCMessageTransfer and make the SMC independent from the UE Context Setup
- Send DRBs inside the UE Context Setup Request
- Trigger UE Context Setup after E1 Bearer Establishment
- Send only one RRCReconfiguration message triggered when PDU Sessions Establishment is accepted
- Fill MeasurementTimingConfiguration in DU, use in CU: allows to revert limitation in commit eaf28414
- Correctly indicate released PDU sessions in NGAP Release Complete
- Fix 5G-S-TMSI encoding
Edited by Robert Schmidt