User equipment, base station, and method

1 . A user equipment (UE), comprising:

a processor configured to:

determine that a joint reporting of uplink control information (UCI) with different priorities is configured and a multiplexing timeline is satisfied,

determine that a physical uplink control channel (PUCCH) carrying more than two bits of low priority (LP) hybrid automatic repeat request-acknowledgement (HARQ-ACK) overlaps with one or more PUCCH resources for a high priority (HP) scheduling request (SR) and one or more PUCCH resources for an LP SR in a case that the one or more PUCCH resources for the LP SR are present,

generate a number of HP SR bits based on a number of the overlapping one or more PUCCH resources for the HP SR, and prepend the HP SR bits to the LP HARQ-ACK, and

generate a number of LP SR bits based on a number of the overlapping one or more PUCCH resources for the LP SR in a case that the overlapping one or more PUCCH resources for the LP SR are present, and append the LP SR bits to the LP HARQ-ACK; and

transmitting circuitry configured to transmit a multiplexed HARQ-ACK and SR on the PUCCH configured for the LP HARQ-ACK based on a total payload of the multiplexed HARQ-ACK and SR.

2 . The UE of claim 1 , wherein the LP SR bits are appended to the LP HARQ-ACK by counting scheduling requests (SRs) with all priorities together based on SR indexes.

3 . The UE of claim 1 , wherein the LP SR bits are appended to the LP HARQ-ACK by counting scheduling requests (SRs) separately based on SR indexes within each priority.

4 . The UE of claim 1 , wherein the HP SR bits are prepended to the LP HARQ-ACK for scheduling requests (SRs) with a high priority and the LP SR bits are appended to the LP HARQ-ACK for SRs with a low priority.

5 . The UE of claim 1 , wherein bits are appended or prepended to the LP HARQ-ACK by counting scheduling requests (SRs) with high priorities only.

6 . The UE of claim 1 , wherein the LP HARQ-ACK and LP scheduling requests (SRs) are jointly reported in a case that no positive high priority SR is reported.

7 . The UE of claim 1 , wherein a high priority PUCCH resource is selected to report the LP HARQ-ACK and a positive high priority SR.

8 . A base station (gNB), comprising:

a processor configured to;

determine that a joint reporting of uplink control information (UCI) with different priorities is configured and a multiplexing timeline is satisfied,

determine that a physical uplink control channel (PUCCH) carrying more than two bits of low priority (LP) hybrid automatic repeat request-acknowledgement (HARQ-ACK) overlaps with one or more PUCCH resources for a high priority (HP) scheduling request (SR) and one or more PUCCH resources for an LP SR in a case that the one or more PUCCH resources for the LP SR are present, wherein the UE:

generates a number of HP SR bits based on a number of the overlapping one or more PUCCH resources for the HP SR, and prepends the HR SR bits to the LP HARQ-AC, and

generates a number of LP SR bits based on a number of the overlapping one or more PUCCH resources for the LP SR in a case that the overlapping one or more PUCCH resources for the LP SR bits are present, and appends the LP SR bits to the LP HARQ-ACK; and

receiving circuitry configured to receive a multiplexed HARQ-ACK and SR on the PUCCH configured for the LP HARQ-ACK based on a total payload of the multiplexed HARQ-ACK and SR, the multiplexed HARQ-ACK and SR comprising more than two bits using a PUCCH format 2, a PUCCH format 3, or a PUCCH format 4, wherein the multiplexed HARQ-ACK and the SR have different priorities.

9 . The gNB of claim 8 , wherein the LP SR bits are appended to the LP HARQ-ACK by counting scheduling requests (SRs) with all priorities together based on SR indexes.

10 . The gNB of claim 8 , wherein the LP SR bits are appended to the LP HARQ-ACK by counting scheduling requests (SRs) separately based on SR indexes within each priority.

11 . The gNB of claim 8 , wherein the HP SR bits are prepended to the LP HARQ-ACK for scheduling requests (SRs) with a high priority and the LP SR bits are appended to the LP HARQ-ACK for SRs with a low priority.

12 . The gNB of claim 8 , wherein bits are appended or prepended to the LP HARQ-ACK by counting scheduling requests (SRs) with high priorities only.

13 . The gNB of claim 8 , wherein the LP HARQ-ACK and LP scheduling requests (SRs) are jointly reported if no positive high priority SR is reported.

14 . The gNB of claim 8 , wherein a high priority PUCCH resource is selected to report the LP HARQ-ACK and a positive high priority SR.

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

determining that a joint reporting of uplink control information (UCI) with different priorities is configured and a multiplexing timeline is satisfied;

determining that a physical uplink control channel (PUCCH) carrying more than two bits of low priority (LP) hybrid automatic repeat request-acknowledgement (HARQ-ACK) overlaps one or more PUCCH resources for a high priority (HP) scheduling request (SR) and one or more PUCCH resources for an LP SR in a case that the one or more PUCCH resources for the LP SR are present;

generating a number of HP SR bits based on a number of the overlapping one or more PUCCH resources for the HP SR, and prepending the HP SR bits to the LP HARQ-ACK;

generating a number of LP SR bits based on a number of the overlapping with one or more PUCCH resources for the LP SR in a case that the overlapping one or more PUCCH resources for the LP SR are present, and appending the LP SR bits to the LP HARQ-ACK; and

transmitting a multiplexed HARQ-ACK and SR on the PUCCH configured for the LP HARQ-ACK based on a total payload of the multiplexed HARQ-ACK and SR.