Method for transmitting and receiving data in wireless communication system and apparatus therefor

A method of receiving a physical downlink shared channel (PDSCH) by a user equipment (UE) in a wireless communication system, the method comprising:

• receiving first configuration information related to a control resource set (CORESET) and second configuration information related to a search space,
• wherein the first configuration information includes a parameter related to a Transmission configuration indication (TCI) state,
• wherein the second configuration information includes information to define physical downlink control channel (PDCCH) candidates;
• receiving (i) first PDCCH scheduling a first Physical Downlink Shared channel (PDSCH) and (ii) the first PDSCH;
• receiving (i) second PDCCH scheduling a second PDSCH and (ii) the second PDSCH;
• transmitting (i) first Hybrid Automatic Repeat Request-Acknowledgement (HARQ-ACK) information corresponding to the first PDSCH and (ii) second HARQ-ACK information corresponding to the second PDSCH,
• wherein the first configuration information further includes (i) an index of a first group to which a first CORESET corresponds and (ii) an index of a second group to which a second CORESET corresponds,
• wherein the index of the first group is different from the index of the second group;
• wherein the first PDCCH is associated with the first CORESET corresponding to the first group and the second PDCCH is associated with the second CORESET corresponding to the second group,
• wherein the first HARQ-ACK information and the second HARQ-ACK information are transmitted separately.

A user equipment (UE) configured to receive a physical downlink shared channel (PDSCH) in a wireless communication system, the UE comprising:

• a transceiver;
• at least one processor;
• and
• at least one computer memory operably connectable to the at least one processor and storing instructions that, when executed by the at least one processor, perform operations comprising:
• receiving first configuration information related to a control resource set (CORESET) and second configuration information related to a search space,
• wherein the first configuration information includes a parameter related to a Transmission configuration indication (TCI) state,
• wherein the second configuration information includes information to define physical downlink control channel (PDCCH) candidates,
• receiving (i) first PDCCH scheduling a first Physical Downlink Shared channel (PDSCH) and (ii) the first PDSCH;
• receiving (i) second PDCCH scheduling a second PDSCH and (ii) the second PDSCH;
• transmitting (i) first Hybrid Automatic Repeat Request-Acknowledgement (HARQ-ACK) information corresponding to the first PDSCH and (ii) second HARQ-ACK information corresponding to the second PDSCH,
• wherein the first configuration information further includes (i) an index of a first group to which a first CORESET corresponds and (ii) an index of a second group to which a second CORESET corresponds,
• wherein the index of the first group is different from the index of the second group;
• wherein the first PDCCH is associated with the first CORESET corresponding to the first group and the second PDCCH is associated with the second CORESET corresponding to the second group,
• wherein the first HARQ-ACK information and the second HARQ-ACK information are transmitted separately.

A method of transmitting a physical downlink shared channel (PDSCH) by a base station in a wireless communication system, the method comprising:

• transmitting system information comprising at least one of a master information block (MIB) or a system information block (SIB);
• transmitting first configuration information related to a control resource set (CORESET) and second configuration information related to a search space,
• wherein the first configuration information includes a parameter related to a Transmission configuration indication (TCI) state,
• wherein the second configuration information includes information to define physical downlink control channel (PDCCH) candidates,
• transmitting (i) first PDCCH scheduling a first Physical Downlink Shared channel (PDSCH) and (ii) the first PDSCH;
• transmitting (i) second PDCCH scheduling a second PDSCH and (ii) the second PDSCH;
• receiving (i) first Hybrid Automatic Repeat Request-Acknowledgement (HARQ-ACK) information corresponding to the first PDSCH and (ii) second HARQ-ACK information corresponding to the second PDSCH,
• wherein the first configuration information further includes (i) an index of a first group to which a first CORESET corresponds and (ii) an index of a second group to which a second CORESET corresponds,
• wherein the index of the first group is different from the index of the second group;
• wherein the first PDCCH is associated with the first CORESET corresponding to the first group and the second PDCCH is associated with the second CORESET corresponding to the second group,
• wherein the first HARQ-ACK information and the second HARQ-ACK information are received separately.