cells on other carriers in due time without performing unnecessary inter-frequency measurements. Here the dilemma is that while frequent inter-frequency measurement by macro-UEs would enable timely small cell discovery on neighbour carriers, it comes with a cost in terms of both UE power consumption and measurement gaps. Current LTE specifications include options of enabling periodical inter-frequency measurements every 40 or 80 ms, using measurement gaps of 6 ms. Typically, the network first enables inter-frequency measurements for the UEs when the serving cell signal strength (or quality) drops below a certain threshold (i.e. corresponding to UE reporting event A2) as these are the conditions where inter-frequency handovers are most likely to offer benefits. Alternatively, location-aware methods for automatic suspend and resume of macro-UE inter-frequency RRM measurements for small cell detection could be controlled depending on whether the UE is likely to be in close vicinity of deployed small cells [4]. Examples of the former include using RF finger printing techniques (e.g. based on collected UE RRM measurements). Inter-frequency small cell discovery is less challenging for UEs supporting carrier aggregation, as those may be able to perform concurrent reception on carrier A and inter-frequency measurements on carrier B (depending on the UE category and implementation). In the rare event of RLF due to, for example, too early or too late handover, mechanisms for efficient recovery are available. Among those include re-establishment attempts initiated by the UE. If the eNodeB receiving the re-establishment request is not prepared for the UE, the eNodeB can fetch the context from the eNodeB previously serving the UE. The context fetch functionality is standardized as part of Release 12. Furthermore, Release 12 also offers the LTE Small Cell Optimization possibility for the network to configure a new timer for the UE to additionally lower the UE outage time to speed up recovery from RLF. This goal is achieved by 