The first time point (slot) to which a plurality of PUSCH transmission resources (or the first PUSCH resource thereamong) scheduled/indicated by the multi-slot DCI are allocated (over a plurality of slots), that is, the DCI-to-PUSCH slot offset may be indicated/determined as follows: 1) the DCI-to-PUSCH slot offset may be indicated/determined based on the value of K (for example, as the same value as K) if the corresponding DCI indicates that “UL-SCH is included” (and “a-CSI is included”); and 2) the DCI-to-PUSCH slot offset may be indicated/determined based on the value of K_c (for example, as the same value as K_c) if the corresponding DCI indicates that “there is no UL-SCH” (and “a-CSI is included”). For example, if the DCI indicates that “there is no UL-SCH” (and “a-CSI is included”), the DCI-to-PUSCH slot offset may be indicated/determined as K_c?1. In this case, a PUSCH transmission resource carrying only CSI feedback with no UL-SCH (or a slot to which the resource is allocated) may be indicated/determined according to the offset value of K_c. As another example, when the DCI indicates that “UL-SCH is included” (and “a-CSI is included”), the DCI-to-PUSCH slot offset may be indicated/determined as K?1. In this case, a PUSCH transmission resource carrying CSI feedback (including the UL-SCH) (or a slot to which the resource is allocated) may be indicated/determined according to the offset value of K.