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F1AP refactoring to align with O-RAN.WG5.C.1-v11

Giulio Carota requested to merge f1ap_uecontext_refactoring into develop

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
Edited by Giulio Carota

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