While conventional technology generally is sufficient for supporting communications, techniques are needed to address problems such as those identified above. In that regard, this disclosure contemplates defining a set of one or multiple frequency chunks (FC) per carrier frequency where reference signal(s) (RS) can be transmitted by the network node and detected and/or measured by a UE. The UE finds RSs for different carriers within the same FC and, possibly performing these inter-frequency measurements without the need to frequency re-tuning (e.g., a FC is within a UE's minimum bandwidth). The UE may be configured with a FC for measurements or search through pre-defined or known FCs, and there may be a FC for intra-frequency measurement, an FC for inter-frequency measurements, and so forth. The UE may report FC where measurements were performed. This disclosure also contemplates defining for each FC, multiple frequency resource blocks (FRB). Each FRB within a FC may be associated with a given carrier frequency. The given carrier frequencies are provided to the UE so that the UE can distinguish RSs from different carrier frequencies even if the reference signal for RRM measurements are transmitted in the same FC.