An apparatus employed within an evolved Node B (eNB). The apparatus comprises baseband circuitry which includes a radio frequency (RF) interface and one or more processors. The one or more processors are configured to generate first channel state information-reference signal (CSI-RS) bandwidth information for a first partition of a system bandwidth, generate second CSI-RS bandwidth information for a second partition of a system bandwidth, and send the first CSI-RS bandwidth information and the second CSI-RS bandwidth information to the RF interface for transmission to one or more user equipment (UE) devices, wherein the first CSI-RS bandwidth information and the second CSI-RS bandwidth information are provided within a physical channel and/or higher layer signalling.
