Section: 5.4.3.5 Mobility from NR failure
Content: The UE shall: 1> if the UE does not succeed in establishing the connection to the target radio access technology: 2> if the targetRAT-Type in the received MobilityFromNRCommand is set to eutra and the UE supports Radio Link Failure Report for Inter-RAT MRO EUTRA: 3> store handover failure information in VarRLF-Report according to 5.3.10.5; 2> if voiceFallbackIndication is included in the MobilityFromNRCommand message; or 2> if the mobility from NR procedure is for emergency services fallback as specified in TS 23.502[ Procedures for the 5G System (5GS) ]  [43]: 3> attempt to select an E-UTRA cell: 4> if a suitable E-UTRA cell is selected; or 4> if no suitable E-UTRA cell is available and an acceptable E-UTRA cell supporting emergency call is selected when the UE has an ongoing emergency call: 5> perform the actions upon going to RRC_IDLE as specified in 5.3.11, with release cause 'RRC connection failure'; 4> else: 5> revert back to the configuration used in the source PCell; 5> initiate the connection re-establishment procedure as specified in clause 5.3.7; NOTE: It is left to UE implementation to determine whether the mobility from NR procedure is for emergency services fallback as specified in TS 23.502[ Procedures for the 5G System (5GS) ]  [43]. 2> else: 3> revert back to the configuration used in the source PCell; 3> initiate the connection re-establishment procedure as specified in clause 5.3.7; 1> else if the UE is unable to comply with any part of the configuration included in the MobilityFromNRCommand message; or 1> if there is a protocol error in the inter RAT information included in the MobilityFromNRCommand message, causing the UE to fail the procedure according to the specifications applicable for the target RAT: 2> if the targetRAT-Type in the received MobilityFromNRCommand is set to eutra and the UE supports Radio Link Failure Report for Inter-RAT MRO EUTRA: 3> store handover failure information in VarRLF-Report according to 5.3.10.5; 2> revert back to the configuration used in the source PCell; 2> initiate the connection re-establishment procedure as specified in clause 5.3.7.