A PUSCH transmission resource carrying CSI (reporting set) feedback indicated by the a-CSI request field in the multi-slot DCI may be determined as: Opt 1) a first PUSCH resource allocated by the corresponding DCI; Opt 2) a PUSCH resource allocated in the first slot in which PUSCH transmission is indicated (in this case, when there are a plurality of sub-slot duration PUSCH resources allocated according to the proposed method, if CSI feedback transmission is indicated by DCI, a plurality of PUSCH resources are exceptionally merged and determined as a single PUSCH resource, and if no CSI feedback transmission is indicated, the plurality of PUSCH resources are determined as individual PUSCH resources); Opt 3) a first PUSCH resource including a specific number of symbols (or non-DMRS symbols) or more and/or a specific number of RBs (REs or non-DMRS REs) or more; or Opt 4) a PUSCH resource allocated in the slot immediately following the first slot in which PUSCH transmission is indicated. In this case, one of Options 1, 2, 3, and 4 may be applied depending on whether “with UL-SCH” or “without UL-SCH” is indicated by the DCI.
As another method, the transmission time (slot) of a PUSCH carrying CSI (reporting set) feedback indicated by the a-CSI request field in the multi-slot DCI (e.g., an a-CSI only PUSCH and/or a PUSCH including a UL-SCH and carrying a-CSI feedback), that is, a DCI-to-CSI (PUSCH) slot offset may be determined as follows: K_c; max(K, K_c) which is the maximum value of K and K_c; or {K+K_c} which is the sum of K and K_c. Alternatively, if the total number of slots in which PUSCH transmissions (resources) are scheduled/indicated is defined as N_s, the DCI-to-SRS (PUSCH) slot offset may be determined as {K+K_c mod N_s}, {min (K+K_c, K+N_s?1)}, or {min (max (K, K_c), K+N_s?1)}. In this case, both K and K_c may be signaled/indicated by the same field in the DCI.