6 Procedures of the E1 interface

37.4803GPPE1 general aspects and principlesRelease 17TS

6.1 Interface Management procedures

The E1 interface management procedures are listed below:

– Reset procedure

– Error Indication procedure

– gNB-CU-UP E1 Setup procedure

– gNB-CU-CP E1 Setup procedure

– gNB-CU-UP Configuration Update procedure

– gNB-CU-CP Configuration Update procedure

– E1 Release procedure

– gNB-CU-UP Status Indication procedure

6.2 Bearer Context Management procedures

The E1 bearer management procedures are listed below:

– Bearer Context Setup procedure

– Bearer Context Release Request (gNB-CU-UP initiated) procedure

– Bearer Context Release (gNB-CU-CP initiated) procedure

– Bearer Context Modification (gNB-CU-CP initiated) procedure

– Bearer Context Modification Required (gNB-CU-UP initiated) procedure

– DL Data Notification procedure

– Bearer Context Inactivity Notification procedure

– Data Usage Report procedure

– MR-DC Data Usage Report procedure

6.3 UE Tracing procedures

The following procedures are used to trace the UE:

– Trace Start procedure

– Deactivate Trace procedure

– Cell Traffic Trace procedure

6.4 Load management procedures

The load management procedures are listed as below:

– Resource Status Reporting Initiation procedure

– Resource Status Reporting procedure

6.5 Measurement results transfer procedures

The measurement results transfer procedures are listed as below:

– GNB-CU-CP Measurement Results Information

6.6 IAB procedures

Note: IAB is an NR feature, and this procedure is not applicable to eNB CP-UP separation and ng-eNB CP-UP separation.

The IAB procedures are listed as below:

– IAB UP TNL Address Update procedure

– IAB PSK Notification procedure

6.7 NR MBS procedures

The E1 MBS procedures are listed below:

– Broadcast E1AP MBS procedures

– BC Bearer Context Setup

– BC Bearer Context Modification (gNB-CU-CP inititated)

– BC Bearer Context Modification (gNB-CU-UP inititated)

– BC Bearer Context Release (gNB-CU-CP inititated)

– BC Bearer Context Release (gNB-CU-UP inititated)

– Multicast E1AP MBS procedures

– MC Bearer Context Setup

– MC Bearer Context Modification (gNB-CU-CP inititated)

– MC Bearer Context Modification (gNB-CU-UP inititated)

– MC Bearer Context Release (gNB-CU-CP inititated)

– MC Bearer Context Release (gNB-CU-UP inititated)