From ICIC (Inter Cell Interference Cancellation) to Further Enhanced ICIC
Further Enhanced ICIC in Release 11 aims at strengthening the eICIC concept and boosting the overall performance.
Due to synchronization signal collision from macro and picocells, a UE may have difficulty to detect picocells.
To assist cell detection, the serving cell provides the UE a list of picocells IDs so that the UE can skip cell ID detection and directly perform picocell reference signal measurements.
In order to enhance reliability, additional options are defined such as sending SIB1 information in a RRC Reconfiguration message or applying interference cancellation at the UE receiver.