A user equipment, UE, operable in a Long Term Evolution, LTE, communication system and LTE-Advanced communication system, the user equipment comprising: a receiving unit configured to receive on a physical downlink control channel, from a base station apparatus, a downlink control information format 1A, the receiving unit being configured to receive on the physical downlink control channel, from the base station apparatus, a downlink control information format X including information indicating one parameter set from a plurality of parameter sets configured by using a higher layer signal, each of the plurality of parameter sets providing a frequency shift and a number of antenna ports, the downlink control information format X being different from the downlink control information format 1A, the receiving unit being configured to decode a physical downlink shared channel, the physical downlink shared channel being mapped to resource elements, wherein for decoding the physical downlink shared channel in a non-MBSFN, Multicast/Broadcast over Single Frequency Network, subframe that is scheduled by using the downlink control information format 1A, the resource elements to which the physical downlink shared channel is mapped are determined based on positions of cell-specific reference signals that are given by using at least a physical layer cell identity, for decoding the physical downlink shared channel in a non-MBSFN subframe that is scheduled by using the downlink control information format X, the resource elements to which the physical downlink shared channel is mapped are determined based on the positions of the cell-specific reference signals that are given by using at least the frequency shift and the number of antenna ports provided by the one parameter set, the one parameter set being indicated by the information included in the downlink control information format X, wherein the downlink control information format 1A is received in a UE-specific search space and a common search space, and wherein the downlink control information format X is received only in a UE-specific search space. a receiving unit configured to receive on a physical downlink control channel, from a base station apparatus, a downlink control information format 1A, the receiving unit being configured to receive on the physical downlink control channel, from the base station apparatus, a downlink control information format X including information indicating one parameter set from a plurality of parameter sets configured by using a higher layer signal, each of the plurality of parameter sets providing a frequency shift and a number of antenna ports, the downlink control information format X being different from the downlink control information format 1A, the receiving unit being configured to decode a physical downlink shared channel, the physical downlink shared channel being mapped to resource elements, wherein for decoding the physical downlink shared channel in a non-MBSFN, Multicast/Broadcast over Single Frequency Network, subframe that is scheduled by using the downlink control information format 1A, the resource elements to which the physical downlink shared channel is mapped are determined based on positions of cell-specific reference signals that are given by using at least a physical layer cell identity, for decoding the physical downlink shared channel in a non-MBSFN subframe that is scheduled by using the downlink control information format X, the resource elements to which the physical downlink shared channel is mapped are determined based on the positions of the cell-specific reference signals that are given by using at least the frequency shift and the number of antenna ports provided by the one parameter set, the one parameter set being indicated by the information included in the downlink control information format X, wherein the downlink control information format 1A is received in a UE-specific search space and a common search space, and wherein the downlink control information format X is received only in a UE-specific search space.