METHOD FOR TRANSMITTING SIGNALS, METHOD FOR RECEIVING SIGNALS AND APPARATUS THEREOF

1 . An apparatus for transmitting signals, configured in a terminal equipment, wherein the apparatus comprises:

a receiver configured to receive a first downlink control information (DCI) in a first PDCCH monitoring occasion and a plurality of physical downlink shared channels (PDSCHs) scheduled by the first DCI, the first DCI including a first information field providing an inapplicable value; and

a transmitter configured to transmit hybrid automatic repeat request acknowledgement (HARQ-ACK) information corresponding to the PDSCHs scheduled by the first DCI in a PUCCH or PUSCH in a slot indicated by a value of a first information field in a second DCI.

2 . The apparatus according to claim 1 , wherein,

the receiver further receives the second DCI in a PDCCH monitoring occasion after the first PDCCH monitoring occasion.

3 . The apparatus according to claim 2 , wherein, the slot indicated by a value of a first information field in a second DCI is not later than a slot for HARQ-ACK information in response to a SPS PDSCH reception received after the PDSCHs scheduled by the first DCI.

4 . The apparatus according to claim 3 , wherein,

the terminal equipment is not provided a first information which is used for enabling enhanced Type-2 HARQ-ACK codebook.

5 . The apparatus according to claim 3 , wherein,

the second DCI indicates a HARQ-ACK information report for a same PDSCH group index as indicated by the first DCI.

6 . The apparatus according to claim 5 , wherein,

the terminal equipment is provided a first information which is used for enabling enhanced Type-2 HARQ-ACK codebook.

7 . The apparatus according to claim 3 , wherein,

the second DCI includes a One-shot HARQ-ACK request field with value 1, and the HARQ-ACK information is included in a Type-3 HARQ-ACK codebook.

8 . The apparatus according to claim 7 , wherein,

the terminal equipment is provided a second information which is used for enabling Type-3 HARQ-ACK codebook.

9 . The apparatus according to claim 7 , wherein,

the first DCI does not indicate SPS PDSCH release.

10 . The apparatus according to claim 1 , wherein,

the receiver receives second DCI later than the slot for HARQ-ACK information in response to a SPS PDSCH reception received after the PDSCHs scheduled by the first DCI.

11 . The apparatus according to claim 10 , wherein,

the second DCI indicates a HARQ-ACK information report for a same PDSCH group index as indicated by the first DCI.

12 . The apparatus according to claim 11 , wherein,

the terminal equipment is provided a first information which is used for enabling enhanced Type-2 HARQ-ACK codebook.

13 . The apparatus according to claim 10 , wherein,

the second DCI includes a One-shot HARQ-ACK request field with value 1 and the HARQ-ACK information is included in a Type-3 HARQ-ACK codebook.

14 . The apparatus according to claim 13 , wherein,

the terminal equipment is provided a second information which is used for enabling Type-3 HARQ-ACK codebook.

15 . The apparatus according to claim 13 , wherein,

the first DCI does not indicate release of SPS PDSCH.

16 . The apparatus according to claim 1 , wherein,

the receiver is configured to receive a first indication information, the first information field in the first DCI providing an inapplicable value from values configured by the first indication information, and the inapplicable value is −1.

17 . The apparatus according to claim 1 , wherein,

the receiver is configured to receive a third indication information used for configuring a time resource allocation table corresponding to the first DCI in which one or more rows contain a plurality of start and length indicators (SLIVs), a value m of a time domain resource assignment field in the first DCI provides a row index m+1 to the resource allocation table, and the number of PDSCHs scheduled by the first DCI is equal to the number of SLIVs in the indicated row of the time resource allocation table by the time domain resource assignment field in the first DCI.

18 . The apparatus according to claim 1 , wherein,

the slot indicated by the value of the first information field in the second DCI is UL slot n+k, wherein,

k is a number of slots and the value of k is indicated by the first information field in the second DCI, and

UL slot n is the last UL slot that overlaps with a DL slot where a last PDSCH of one or more PDSCHs scheduled by the second DCI locates, or the last UL slot that overlaps with a DL slot where a PDCCH providing the second DCI locates.

19 . An apparatus for receiving signals, configured in a network device, wherein the apparatus comprises:

a transmitter configured to transmit first downlink control information (DCI) and a plurality of physical downlink shared channels (PDSCHs) scheduled by the first DCI, the first DCI including a first information field providing an inapplicable value; and

a receiver configured to receive hybrid automatic repeat request acknowledgement (HARQ-ACK) information corresponding to the PDSCHs scheduled by the first DCI in a PUCCH or PUSCH in a slot indicated by a value of a first information field in a second DCI.

20 . A communication system, comprising a network device and a terminal equipment, wherein,

the terminal equipment is configured to:

receive a first downlink control information (DCI) in a first PDCCH monitoring occasion and a plurality of physical downlink shared channels (PDSCHs) scheduled by the first DCI, the first DCI including a first information field providing an inapplicable value; and

transmit hybrid automatic repeat request acknowledgement (HARQ-ACK) information corresponding to the PDSCHs scheduled by the first DCI in a PUCCH or PUSCH in a slot indicated by a value of a first information field in a second DCI;

the network device is configured to:

transmit the first DCI and the plurality of PDSCHs scheduled by the first DCI; and

receive the HARQ-ACK information corresponding to the PDSCHs scheduled by the first DCI.