8.7.5 SgNB Reconfiguration Completion

36.4233GPPEvolved Universal Terrestrial Radio Access Network (E-UTRAN)Release 17TSX2 Application Protocol (X2AP)

8.7.5.1 General

The purpose of the SgNB Reconfiguration Completion procedure is to provide information to the en-gNB whether the requested configuration was successfully applied by the UE.

The procedure uses UE-associated signalling.

8.7.5.2 Successful Operation

Figure 8.7.5.2-1: SgNB Reconfiguration Complete procedure, successful operation.

The MeNB initiates the procedure by sending the SGNB RECONFIGURATION COMPLETE message to the en-gNB.

The SGNB RECONFIGURATION COMPLETE message may contain information that

– either the UE has successfully applied the configuration requested by the en-gNB. The MeNB may also provide NR RRCReconfigurationComplete message in the MeNB to SgNB Container IE.

– or the configuration requested by the en-gNB has been rejected. The MeNB shall provide information with sufficient precision in the included Cause IE to enable the en-gNB to know the reason for an unsuccessful reconfiguration.

Upon reception of the SGNB RECONFIGURATION COMPLETE message the en-gNB shall stop the timer T_DCoverall if T_DCoverall is running.

8.7.5.3 Abnormal Conditions

Void.