A method for operating by a user equipment, UE, in a wireless communication system, the method comprising: receiving configuration information related to a PDSCH repetition scheme; receiving downlink control information, DCI, wherein two transmission configuration indicator, TCI, states are indicated in a codepoint of a TCI field in the DCI, and mapping between the two TCI states and the codepoint of the TCI field is applied based on an activation command; receiving two physical downlink shared channels, PDSCHs, based on the configuration information and the DCI, wherein the two PDSCHs are based on same transport block, TB, wherein a first PDSCH of the two PDSCHs corresponds to a first TCI state of the two TCI states and a second PDSCH of the two PDSCHs corresponds to a second TCI state of the two TCI states, wherein, based on a unit of physical resource block, PRB, bundling being configured as a wideband: a total PRBs allocated for the UE is divided into first consecutive PRBs and second consecutive PRBs, and the first PDSCH is received in the first consecutive PRBs and the second PDSCH is received in the second consecutive PRBs, and wherein, based on the unit of the PRB bundling being configured as a 2 PRBs or 4 PRBs: the total PRBs allocated for the UE are divided into a plurality of precoding resource block groups, PRGs, and the first PDSCH is received in even PRGs among the plurality of PRGs and the second PDSCH is received in odd PRGs. receiving configuration information related to a PDSCH repetition scheme; receiving downlink control information, DCI, wherein two transmission configuration indicator, TCI, states are indicated in a codepoint of a TCI field in the DCI, and mapping between the two TCI states and the codepoint of the TCI field is applied based on an activation command; receiving two physical downlink shared channels, PDSCHs, based on the configuration information and the DCI, wherein the two PDSCHs are based on same transport block, TB, wherein a first PDSCH of the two PDSCHs corresponds to a first TCI state of the two TCI states and a second PDSCH of the two PDSCHs corresponds to a second TCI state of the two TCI states, wherein, based on a unit of physical resource block, PRB, bundling being configured as a wideband: a total PRBs allocated for the UE is divided into first consecutive PRBs and second consecutive PRBs, and the first PDSCH is received in the first consecutive PRBs and the second PDSCH is received in the second consecutive PRBs, and a total PRBs allocated for the UE is divided into first consecutive PRBs and second consecutive PRBs, and the first PDSCH is received in the first consecutive PRBs and the second PDSCH is received in the second consecutive PRBs, and wherein, based on the unit of the PRB bundling being configured as a 2 PRBs or 4 PRBs: the total PRBs allocated for the UE are divided into a plurality of precoding resource block groups, PRGs, and the first PDSCH is received in even PRGs among the plurality of PRGs and the second PDSCH is received in odd PRGs. the total PRBs allocated for the UE are divided into a plurality of precoding resource block groups, PRGs, and the first PDSCH is received in even PRGs among the plurality of PRGs and the second PDSCH is received in odd PRGs.