Question: What action(s) does a User Equipment (UE) take if it cannot comply with part of the configuration in an RRCConnectionReconfiguration message in an E-UTRA network?
Option 1: The UE applies the compliant parts of the configuration and ignores the non-compliant parts, then performs actions for the failure case.
Option 2: The UE rejects the entire configuration, reverts to its previous state, and performs actions defined for E-UTRA Reconfiguration failure.
Option 3: The UE attempts to rectify the non-compliant parts through additional signaling with the network before taking any failure handling actions.
Option 4: The UE treats this as a protocol error, ignores the message, and continues operating with its current configuration without any failure handling.
Explanation: If a UE cannot comply with part of the RRCConnectionReconfiguration message in an E-UTRA context, it doesn't apply any new configuration to avoid partial success/failure. Instead, it reverts and performs failure handling actions for E-UTRA, maintaining consistency and preventing potential conflicts or misconfigurations.