A method for facilitating Physical Downlink Shared Channel, PDSCH, rate matching is presented. The method is performed in a network node (2) and comprises sending (102) to a wireless device (1) an indication whether a group of all available resources of an aperiodic Channel State Information Reference Signal, CSI-RS, resource pool is used in a given subframe, wherein the sending (102) comprises transmitting, to a wireless device in transmission mode 9, a Downlink Control Information, DCI, format 2C message, in values of two additional bits representing a determined use of CSI-RS resources.