Merge remote-tracking branch 'origin/e1ap-issue-878' into integration_2025_w04 (!3171)

- Refactor SCTP Association Response Handling
  - Unified function for both CU-CP and CU-UP handling
  - CU-CP: Notifies RRC of E1 connection loss with CU-UP
  - CU-UP: Initiates a new SCTP association request to regain E1 connection
  - this fix will prevent issue #878 from happening

- Send list of PDU Session Resources to Failed Setup in the (PDU Session
  Resource/Initial Context) Setup Response
  - depending on different failure scenarios
  - e.g. (#878) when No CU-UP is associated and still the CU-CP receives a PDU
    Session Setup Request
  - add relevant functions to handle NGAP Setup Response messages with failed
    list of items
  - this is an extra failure handling to make #878 is handled if it ever happens
    again

- NGAP Cause Refactoring
  - Refactor struct for NGAP cause group and value
  - Add extended radio network cause enumeration values
  - Refactor redundant code into a new NGAP cause encoding function

- Minor logging, function descriptions improvements

Closes #878

This commit is contained in:

Jaroslava Fiedlerova

2025-01-23 17:50:55 +01:00

parent 4f5cb2408c 9fe045f40e

commit 2da68f6056

24 changed files with 345 additions and 282 deletions

									
										CMakeLists.txt
									
		+1
		
												View File
												
				@@ -345,6 +345,7 @@ set(NGAP_DIR ${OPENAIR3_DIR}/NGAP)

				include_directories ("${NGAP_DIR}")

				add_library(ngap

				  ${NGAP_DIR}/ngap_gNB.c

				  ${NGAP_DIR}/ngap_common.c

				  ${NGAP_DIR}/ngap_gNB_context_management_procedures.c

				  ${NGAP_DIR}/ngap_gNB_decoder.c

				  ${NGAP_DIR}/ngap_gNB_encoder.c