8.1 List of E1AP Elementary Procedures – TechSpec

8.1 List of E1AP Elementary Procedures

38.4633GPPE1 Application Protocol (E1AP)NG-RANRelease 16TS

Tools: ARFCN - Frequency Conversion for 5G NR/LTE/UMTS/GSM

In the following tables, all EPs are divided into Class 1 and Class 2 EPs (see subclause 3.1 for explanation of the different classes):

Table 1: Class 1 procedures

Elementary Procedure		Initiating Message		Successful Outcome		Unsuccessful Outcome
				Response message		Response message
Reset		RESET		RESET ACKNOWLEDGE
gNB-CU-UP E1 Setup		GNB-CU-UP E1 SETUP REQUEST		GNB-CU-UP E1 SETUP RESPONSE		GNB-CU-UP E1 SETUP FAILURE
gNB-CU-CP E1 Setup		GNB-CU-CP E1 SETUP REQUEST		GNB-CU-CP E1 SETUP RESPONSE		GNB-CU-CP E1 SETUP FAILURE
gNB-CU-UP Configuration Update		GNB-CU-UP CONFIGURATION UPDATE		GNB-CU-UP CONFIGURATION UPDATE ACKNOWLEDGE		GNB-CU-UP CONFIGURATION UPDATE FAILURE
gNB-CU-CP Configuration Update		GNB-CU-CP CONFIGURATION UPDATE		GNB-CU-CP CONFIGURATION UPDATE ACKNOWLEDGE		GNB-CU-CP CONFIGURATION UPDATE FAILURE
E1 Release		E1 RELEASE REQUEST		E1 RELEASE RESPONSE
Bearer Context Setup		BEARER CONTEXT SETUP REQUEST		BEARER CONTEXT SETUP RESPONSE		BEARER CONTEXT SETUP FAILURE
Bearer Context Modification (gNB-CU-CP initiated)		BEARER CONTEXT MODIFICATION REQUEST		BEARER CONTEXT MODIFICATION RESPONSE		BEARER CONTEXT MODIFICATION FAILURE
Bearer Context Modification Required (gNB-CU-UP initiated)		BEARER CONTEXT MODIFICATION REQUIRED		BEARER CONTEXT MODIFICATION CONFIRM
Bearer Context Release (gNB-CU-CP initiated)		BEARER CONTEXT RELEASE COMMAND		BEARER CONTEXT RELEASE COMPLETE
Resource Status Reporting Initiation		RESOURCE STATUS REQUEST		RESOURCE STATUS RESPONSE		RESOURCE STATUS FAILURE
IAB UP TNL Address Update		IAB UP TNL ADDRESS UPDATE		IAB UP TNL ADDRESS UPDATE ACKNOWLEDGE		IAB UP TNL ADDRESS UPDATE FAILURE

Table 2: Class 2 procedures

Elementary Procedure			Message
Error Indication			ERROR INDICATION
Bearer Context Release Request (gNB-CU-UP initiated)			BEARER CONTEXT RELEASE REQUEST
Bearer Context Inactivity Notification			BEARER CONTEXT INACTIVITY NOTIFICATION
DL Data Notification			DL DATA NOTIFICATION
UL Data Notification			UL DATA NOTIFICATION
Data Usage Report			DATA USAGE REPORT
gNB-CU-UP Counter Check			GNB-CU-UP COUNTER CHECK
gNB-CU-UP Status Indication			GNB-CU-UP STATUS INDICATION
MR-DC Data Usage Report			MR-DC DATA USAGE REPORT
Trace Start			TRACE START
Deactivate Trace			DEACTIVATE TRACE
Resource Status Reporting			RESOURCE STATUS UPDATE
Early Forwarding SN Transfer			EARLY FORWARDING SN TRANSFER
GNB-CU-CP Measurement Results Information			GNB-CU-CP MEASUREMENT RESULTS INFORMATION
IAB PSK Notification			IAB PSK NOTIFICATION