Method for transmitting HARQ-ACK information, user equipment, processing device, storage medium and computer program, and HARQ-ACK information reception method and base station

1 . A method performed by a user equipment (UE), the method comprising:

receiving first scheduling information related to a first priority and second scheduling information related to a second priority, wherein the second priority is higher than the first priority;

receiving a first physical downlink shared channel (PDSCH) based on the first scheduling information;

receiving a second PDSCH based on the second scheduling information;

generating first hybrid automatic repeat request-acknowledgement (HARQ-ACK) information with the first priority based on receiving the first PDSCH;

generating second HARQ-ACK information with the second priority based on receiving the second PDSCH;

determining a first slot for a transmission of the first HARQ-ACK information based on a first PDSCH-to-HARQ-ACK feedback timing value for the first PDSCH;

determining a second slot for a transmission of the second HARQ-ACK information based on a second PDSCH-to-HARQ-ACK_feedback timing value for the second PDSCH;

based on the transmission of the first HARQ-ACK information overlapping with a downlink symbol in the first slot, determining a third slot to which the transmission of the first HARQ-ACK information with the first priority is deferred, wherein the third slot is later in time than the first slot; and

based on the transmission of the second HARQ-ACK information overlapping with a downlink symbol in the second slot, determining a fourth slot to which the transmission of the second HARQ-ACK information with the second priority is deferred, wherein the fourth slot is later in time than the second slot,

wherein the UE determines, as the third slot, an earliest slot in which a first physical uplink channel for third HARQ-ACK information with the first priority including the first HARQ-ACK information overlaps with no downlink symbol, and

wherein the UE determines, as the fourth slot, an earliest slot in which a second physical uplink channel for fourth HARQ-ACK information with the second priority including the second HARQ-ACK information overlaps with no downlink symbol.

2 . The method of claim 1 , wherein each of the first PDSCH and the second PDSCH is a semi-persistent scheduling based PDSCH.

3 . The method of claim 1 , wherein the first physical uplink channel is a physical uplink control channel (PUCCH) for a semi-persistent scheduling configuration related to the first PDSCH.

4 . The method of claim 1 , comprising:

based on i) the third slot being identical to the fourth slot and ii) the first physical uplink channel for the third HARQ-ACK information with the first priority overlapping in time with the second physical uplink channel for the fourth HARQ-ACK information with the second priority, determining a third physical uplink channel for multiplexing the third HARQ-ACK information and the fourth HARQ-ACK information; and

based on the third physical uplink channel overlapping with no downlink symbol, transmitting the third HARQ-ACK information and the fourth HARQ-ACK information over the third physical uplink channel in the third slot.

5 . The method of claim 4 , wherein the third physical uplink channel is determined based on a number of bits in the third and fourth HARQ-ACK information and a physical uplink control channel (PUCCH) configuration for the second priority.

6 . A user equipment (UE) comprising:

at least one transceiver;

at least one processor; and

at least one computer memory operably connected to the at least one processor and configured to store instructions that, when executed, cause the at least one processor to perform operations comprising:

receiving first scheduling information related to a first priority and second scheduling information related to a second priority, wherein the second priority is higher than the first priority;

receiving a first physical downlink shared channel (PDSCH) based on the first scheduling information;

receiving a second PDSCH based on the second scheduling information;

generating first hybrid automatic repeat request-acknowledgement (HARQ-ACK) information with the first priority based on receiving the first PDSCH;

generating second HARQ-ACK information with the second priority based on receiving the second PDSCH;

determining a first slot for a transmission of the first HARQ-ACK information based on a first PDSCH-to-HARQ-ACK_feedback timing value for the first PDSCH;

determining a second slot for a transmission of the second HARQ-ACK information based on a second PDSCH-to-HARQ-ACK_feedback timing value for the second PDSCH;

based on the transmission of the first HARQ-ACK information overlapping with a downlink symbol in the first slot, determining a third slot to which the transmission of the first HARQ-ACK information with the first priority is deferred, wherein the third slot is later in time than the first slot; and

based on the transmission of the second HARQ-ACK information overlapping with a downlink symbol in the second slot, determining a fourth slot to which the transmission of the second HARQ-ACK information with the second priority is deferred, wherein the fourth slot is later in time than the second slot,

wherein the UE determines, as the third slot, an earliest slot in which a first physical uplink channel for third HARQ-ACK information with the first priority including the first HARQ-ACK information overlaps with no downlink symbol, and

wherein the UE determines, as the fourth slot, an earliest slot in which a second physical uplink channel for fourth HARQ-ACK information with the second priority including the second HARQ-ACK information overlaps with no downlink symbol.

7 . A base station (BS) comprising:

at least one transceiver;

at least one processor; and

at least one computer memory operably connected to the at least one processor and configured to store instructions that, when executed, cause the at least one processor to perform operations comprising:

transmitting, to a user equipment (UE), first scheduling information related to a first priority and second scheduling information related to a second priority, wherein the second priority is higher than the first priority;

transmitting, to the UE, a first physical downlink shared channel (PDSCH) based on the first scheduling information;

transmitting, to the UE, a second PDSCH based on the second scheduling information;

determining a first slot for a reception of first HARQ-ACK information with the first priority for the first PDSCH based on a first PDSCH-to-HARQ-ACK_feedback timing value for the first PDSCH;

determining a second slot for a reception of second HARQ-ACK information with the second priority for the second PDSCH based on a second PDSCH-to-HARQ-ACK feedback timing value for the second PDSCH;

based on the reception of the first HARQ-ACK information overlapping with a downlink symbol in the first slot, determining a third slot to which the reception of the first HARQ-ACK information with the first priority is deferred, wherein the third slot is later in time than the first slot; and

based on the reception of the second HARQ-ACK information overlapping with a downlink symbol in the second slot, determining a fourth slot to which the reception of the second HARQ-ACK information with the second priority is deferred, wherein the fourth slot is later in time than the second slot,

wherein an earliest slot in which a first physical uplink channel for third HARQ-ACK information with the first priority including the first HARQ-ACK information overlaps with no downlink symbol is determined as the third slot, and

wherein an earliest slot in which a second physical uplink channel for fourth HARQ-ACK information with the second priority including the second HARQ-ACK information overlaps with no downlink symbol is determined as the fourth slot.

8 . The BS of claim 7 , wherein each of the first PDSCH and the second PDSCH is a semi-persistent scheduling based PDSCH.

9 . The BS of claim 7 , wherein the first physical uplink channel is a physical uplink control channel (PUCCH) for a semi-persistent scheduling configuration related to the first PDSCH.

10 . The BS of claim 7 , wherein the operations comprise:

based on i) the third slot being identical to the fourth slot and ii) the first physical uplink channel for the third HARQ-ACK information with the first priority overlapping in time with the second physical uplink channel for the fourth HARQ-ACK information with the second priority, determining a third physical uplink channel for multiplexing the third HARQ-ACK information and the fourth HARQ-ACK information; and

based on the third physical uplink channel overlapping with no downlink symbol, receiving the third HARQ-ACK information and the fourth HARQ-ACK information on the third physical uplink channel in the third slot.

11 . The BS of claim 10 , wherein the third physical uplink channel is determined based on a number of bits in the third and fourth HARQ-ACK information and a physical uplink control channel (PUCCH) configuration for the second priority.

12 . The UE of claim 6 , wherein each of the first PDSCH and the second PDSCH is a semi-persistent scheduling based PDSCH.

13 . The UE of claim 6 , wherein the first physical uplink channel is a physical uplink control channel (PUCCH) for a semi-persistent scheduling configuration related to the first PDSCH.

14 . The UE of claim 6 , wherein the operations comprise:

based on i) the third slot being identical to the fourth slot and ii) the first physical uplink channel for the third HARQ-ACK information with the first priority overlapping in time with the second physical uplink channel for the fourth HARQ-ACK information with the second priority, determining a third physical uplink channel for multiplexing the third HARQ-ACK information and the fourth HARQ-ACK information; and

based on the third physical uplink channel overlapping with no downlink symbol, transmitting the third HARQ-ACK information and the fourth HARQ-ACK information over the third physical uplink channel in the third slot.

15 . The UE of claim 14 , wherein the third physical uplink channel is determined based on a number of bits in the third and fourth HARQ-ACK information and a physical uplink control channel (PUCCH) configuration for the second priority.