A method of wireless communication of a user equipment, in the following also referred to as UE, comprising: determining a first down link control channel, in the following also referred to as DCCH, resource candidate in a first control resource set, in the following also referred to as CORESET, on a carrier, the first DCCH resource candidate including a first set of resource blocks, in the following also referred to as RBs,; determining a first sequence of Demodulation Reference Signals, in the following also referred to as DMRSs, that are mapped, starting at a reference point, to RBs in a predetermined range within the carrier in a frequency domain, the predetermined range containing the first DCCH resource candidate in the frequency domain; determining, with reference to the reference point in the frequency domain, a first reference location of the first set of RBs as the lower boundary in the frequency domain of the first set of RBs; determining, based on the first reference location, a first set of DMRSs from the first sequence of DMRSs, the first set of DMRSs being mapped to the first set of RBs; obtaining a channel estimation based on the first set of DMRSs; and performing blind decoding of the first DCCH resource candidate based on the channel estimation; characterized in that the reference point is an allocation unit at an offset of RBs from a predetermined point of a bandwidth part of the carrier assigned to the UE in the frequency domain, which offset is received at the UE through higher-layer signaling with a resource allocation of the first CORESET; the predetermined point is a starting point of the bandwidth part; and the first reference location is indicated by an integer of allocation units away from the reference point, each of the allocation units including N RBs, N being an integer greater than 0. determining a first down link control channel, in the following also referred to as DCCH, resource candidate in a first control resource set, in the following also referred to as CORESET, on a carrier, the first DCCH resource candidate including a first set of resource blocks, in the following also referred to as RBs,; determining a first sequence of Demodulation Reference Signals, in the following also referred to as DMRSs, that are mapped, starting at a reference point, to RBs in a predetermined range within the carrier in a frequency domain, the predetermined range containing the first DCCH resource candidate in the frequency domain; determining, with reference to the reference point in the frequency domain, a first reference location of the first set of RBs as the lower boundary in the frequency domain of the first set of RBs; determining, based on the first reference location, a first set of DMRSs from the first sequence of DMRSs, the first set of DMRSs being mapped to the first set of RBs; obtaining a channel estimation based on the first set of DMRSs; and performing blind decoding of the first DCCH resource candidate based on the channel estimation; characterized in that the reference point is an allocation unit at an offset of RBs from a predetermined point of a bandwidth part of the carrier assigned to the UE in the frequency domain, which offset is received at the UE through higher-layer signaling with a resource allocation of the first CORESET; the predetermined point is a starting point of the bandwidth part; and the first reference location is indicated by an integer of allocation units away from the reference point, each of the allocation units including N RBs, N being an integer greater than 0.