Method and device for transmitting/receiving wireless signal in wireless communication system
The present invention relates to a wireless communication system, and specifically, to a method and a device for the method which comprises the steps of: receiving a PDCCH including uplink scheduling information; and transmitting, at a UL SF, a PUSCH indicated by the uplink scheduling information, wherein, if the PDCCH requests a transmission of an ACK, the PUSCH includes ACK information about a SF set corresponding to the UL SF, wherein the SF set includes a plurality of SFs.
1. A method performed by a user equipment (UE) configured to operate in a wireless communication system, the method comprising:
receiving a radio resource control (RRC) signal comprising first information related to a plurality of hybrid automatic repeat and request (HARQ) processes;
receiving downlink control information (DCI) scheduling a physical downlink shared channel (PDSCH), wherein the DCI comprises a first indication related to at least one HARQ process among the plurality of HARQ processes;
obtaining an acknowledgement/negative acknowledgement (A/N) payload comprising a plurality of A/N bits corresponding to all of the at least one HARQ process indicated by the first information, wherein an A/N bit among the A/N bits for a HARQ process among the at least one HARQ process is determined by:
based on an A/N result for the HARQ process having not been reported for the PDSCH, the A/N bit is determined as the A/N result for the HARQ process, and
based on the A/N result for the HARQ process having been reported for the PDSCH, the A/N bit is determined as NACK;
obtaining HARQ-acknowledgement (HARQ-ACK) information based on the A/N payload; and
reporting the HARQ-ACK information.
2. The method of claim 1 , wherein the RRC signal further comprises second information related to a plurality of serving cells,
wherein the DCI further comprises a second indication related to at least one serving cell among the plurality of serving cells, and
wherein the HARQ-ACK information is obtained based on (i) the at least one HARQ process indicated by the first indication and (ii) the at least one serving cell identified by the second indication.
3. The method of claim 1 , wherein, based on the A/N result for the HARQ process having been reported for the PDSCH, the A/N bit is determined as NACK, regardless of the A/N result for the HARQ process.
4. The method of claim 1 , wherein the HARQ-ACK is reported in one of a physical uplink control channel (PUCCH) or a physical uplink shared channel (PUSCH).
5. A user equipment (UE) configured to operate in a wireless communication system, the UE comprising:
a transceiver;
at least one processor coupled with the transceiver; 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 a radio resource control (RRC) signal comprising first information related to a plurality of hybrid automatic repeat and request (HARQ) processes;
receiving downlink control information (DCI) scheduling a physical downlink shared channel (PDSCH), wherein the DCI comprises a first indication related to at least one HARQ process among the plurality of HARQ processes;
obtain an acknowledgement/negative acknowledgement (A/N) payload comprising a plurality of A/N bits corresponding to all of the at least one HARQ process indicated by the first information, wherein an A/N bit among the A/N bits for a HARQ process among the at least one HARQ process is determined by:
based on an A/N result for the HARQ process having not been reported for the PDSCH, the A/N bit is determined as the A/N result for the HARQ process, and
based on the A/N result for the HARQ process having been reported for the PDSCH, the A/N bit is determined as NACK;
obtaining HARQ-acknowledgement (HARQ-ACK) information based on the A/N payload; and
reporting the HARQ-ACK information.
6. The UE of claim 5 , wherein the RRC signal further comprises second information related to a plurality of serving cells,
wherein the DCI further comprises a second indication related to at least one serving cell among the plurality of serving cells, and
wherein the HARQ-ACK information is obtained based on (i) the at least one HARQ process indicated by the first indication and (ii) the at least one serving cell identified by the second indication.
7. The UE of claim 5 , wherein, based on the A/N result for the HARQ process having been reported for the PDSCH, the A/N bit is determined as NACK, regardless of the A/N result for the HARQ process.
8. The UE of claim 5 , wherein the HARQ-ACK is reported in one of a physical uplink control channel (PUCCH) or a physical uplink shared channel (PUSCH).
9. A method performed by a base station configured to operate in a wireless communication system, the method comprising:
transmitting a radio resource control (RRC) signal comprising first information related to a plurality of hybrid automatic repeat and request (HARQ) processes;
transmitting downlink control information (DCI) scheduling a physical downlink shared channel (PDSCH), wherein the DCI comprises a first indication related to at least one HARQ process among the plurality of HARQ processes; and
receiving HARQ-acknowledgement (HARQ-ACK) information,
wherein the HARQ-ACK information is based on an acknowledgement/negative acknowledgement (A/N) payload,
wherein the A/N payload comprises a plurality of A/N bits corresponding to all of the at least one HARQ process indicated by the first information,
wherein an A/N bit among the A/N bits for a HARQ process among the at least one HARQ process is determined by:
based on an A/N result for the HARQ process having not been reported for the PDSCH, the A/N bit is determined as the A/N result for the HARQ process, and
based on the A/N result for the HARQ process having been reported for the PDSCH, the A/N bit is determined as NACK.
10. A base station configured to operate in a wireless communication system, the base station comprising:
a transceiver;
at least one processor coupled with the transceiver; 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:
transmitting a radio resource control (RRC) signal comprising first information related to a plurality of hybrid automatic repeat and request (HARQ) processes;
transmitting downlink control information (DCI) scheduling a physical downlink shared channel (PDSCH), wherein the DCI comprises a first indication related to at least one HARQ process among the plurality of HARQ processes; and
receive HARQ-acknowledgement (HARQ-ACK) information,
wherein the HARQ-ACK information is based on an acknowledgement/negative acknowledgement (A/N) payload,
wherein the A/N payload comprises a plurality of A/N bits corresponding to all of the at least one HARQ process indicated by the first information,
wherein an A/N bit among the A/N bits for a HARQ process among the at least one HARQ process is determined by:
based on an A/N result for the HARQ process having not been reported for the PDSCH, the A/N bit is determined as the A/N result for the HARQ process, and
based on the A/N result for the HARQ process having been reported for the PDSCH, the A/N bit is determined as NACK.
11. A method performed by a user equipment (UE) in a wireless communication system, the method comprising:
receiving downlink control information (DCI) for scheduling a physical downlink channel (PDSCH), wherein the DCI comprises delay information related to acknowledgement/negative acknowledgement (A/N) timing;
based on receiving the DCI, receiving data via the PDSCH in a time unit n; and
based on receiving the data in the time unit n, transmitting an A/N payload in a time unit n+k, where k is one of a plurality of A/N timing values and k is based on the received delay information,
wherein the A/N payload comprises a plurality of A/N responses, with the plurality of A/N responses related to a plurality of data reception occasions, and
wherein the plurality of data reception occasions, related to the plurality of A/N responses in the A/N payload, are determined based on the plurality of A/N timing values.
12. The method of claim 11 , wherein each of the plurality of data reception occasions is related to a respective time unit n i , and
wherein n i is an i th element of a timing set that comprises the time unit n.
13. The method of claim 11 , wherein each time unit comprises a plurality of contiguous orthogonal frequency division multiplexing (OFDM)-based symbols.
14. The method of claim 11 , wherein the DCI is received through a physical downlink control channel (PDCCH), and
wherein the A/N payload is transmitted through a physical uplink control channel (PUCCH) or a physical uplink shared channel (PUSCH).
15. A user equipment (UE) configured to operate in a wireless communication system, the UE comprising:
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 downlink control information (DCI) for scheduling a physical downlink channel (PDSCH), wherein the DCI comprises delay information related to acknowledgement/negative acknowledgement (A/N) timing;
based on receiving the DCI, receiving data via the PDSCH in a time unit n; and
based on receiving the data in the time unit n, transmitting an A/N payload in a time unit n+k, where k is one of a plurality of A/N timing values and k is based on the received delay information,
wherein the A/N payload comprises a plurality of A/N responses, with the plurality of A/N responses related to a plurality of data reception occasions, and
wherein the plurality of data reception occasions, related to the plurality of A/N responses in the A/N payload, are determined based on the plurality of A/N timing values.
16. The UE of claim 15 , wherein each of the plurality of data reception occasions is related to a respective time unit n i , and
wherein n i is an i th element of a timing set that comprises the time unit n.
17. The UE of claim 15 , wherein each time unit comprises a plurality of contiguous orthogonal frequency division multiplexing (OFDM)-based symbols.
18. The UE of claim 15 , wherein the DCI is received through a physical downlink control channel (PDCCH), and
wherein the A/N payload is transmitted through a physical uplink control channel (PUCCH) or a physical uplink shared channel (PUSCH).