A user equipment (UE) may receive, during a first transmission time interval (TTI), one or more broadcasts from a base station over a first frequency range. The UE may receive, during the first TTI, a reference signal over a second frequency range that is disjoint from the first frequency range. The UE may receive, during a subsequent TTI, a downlink grant from the base station scheduling a downlink data transmission over at least portions of both the first frequency range and the second frequency range, wherein the downlink grant comprises a reference signal sharing indication. The UE may obtain a channel estimate for the second frequency range of the subsequent TTI based at least in part on the reference signal and may refrain from applying the channel estimate to the first frequency range in the subsequent TTI.