Joint coding and multiplexing of HARQ-ACK with different priorities on PUCCH format 2, PUCCH format 3 or PUCCH format 4
A user equipment (UE) is described. The UE determines a joint coding for more than two bits of total payload for low priority hybrid automatic repeat request-acknowledgement (HARQ-ACK) and high priority HARQ-ACK on a physical uplink control channel (PUCCH). The UE also determines a PUCCH resource based on the total HARQ-ACK payload from sets of high priority PUCCH resources. The UE further determines a number of physical resource blocks (PRBs) for a PUCCH transmission based on the total HARQ-ACK payload and a maxCodeRate on the selected PUCCH resource. The UE also multiplexes the low priority HARQ-ACK and the high priority HARQ-ACK based on the determined joint coding. The UE further transmits the multiplexed HARQ-ACK on the PUCCH.
1 . A user equipment (UE), comprising:
a processor configured to:
determine that a first physical uplink control channel (PUCCH) with priority index 1 carrying a first hybrid automatic repeat request-acknowledgement (HARQ-ACK) with priority index 1 overlaps with a second PUCCH with priority index 0 carrying a second HARQ-ACK with priority index 0, and determine a total HARQ-ACK payload of the first HARQ-ACK and the second HARQ-ACK is more than 2 bits,
determine a PUCCH resource from sets of PUCCH resources configured for priority index 1 based on the total HARQ-ACK payload of the first HARQ-ACK with priority index 1 and the second HARQ-ACK with priority index 0, and
multiplex the first HARQ-ACK with priority index 1 and the second HARQ-ACK with priority index 0 on the determined PUCCH resource with priority index 1; and
transmitting circuitry configured to transmit the multiplexed HARQ-ACK on the determined PUCCH resource with priority index 1.
2 . The UE of claim 1 , wherein in a case that the total HARQ-ACK payload exceeds a maximum payload size of all the configured sets of HARQ-ACK PUCCH resources for priority index 1, the transmitting circuitry is further configured to:
transmit the first HARQ-ACK with priority index 1 on another PUCCH resource with priority index 1 based on a payload of the first HARQ-ACK with priority index 1, and
drop the second HARQ-ACK with priority index 0.
3 . The UE of claim 1 , wherein in a case that the total HARQ-ACK payload exceeds a maximum payload size of all the configured sets of HARQ-ACK PUCCH resources for priority index 1, the processor is further configured to:
perform a payload reduction on the second HARQ-ACK with priority index 0 to generate a payload reduced HARQ-ACK with priority index 0,
determine another PUCCH resource from the sets of PUCCH resources configured for priority index 1 based on a total HARQ-ACK payload of the first HARQ-ACK with priority index 1 and the payload reduced HARQ-ACK with priority index 0,
multiplex, as another multiplexed HARQ-ACK, the first HARQ-ACK with priority index 1 and the payload reduced HARQ-ACK with priority index 0 on the determined PUCCH resource with priority index 1; and
the transmitting circuitry is further configured to transmit the other multiplexed HARQ-ACK on the other determined PUCCH with priority index 1.
4 . A base station (gNB), comprising:
a processor configured to:
determine that a first physical uplink control channel (PUCCH) with priority index 1 carrying a first hybrid automatic repeat request-acknowledgement (HARQ-ACK) with priority index 1 overlaps with a second PUCCH with priority index 0 carrying a second HARQ-ACK with priority index 0, and determine a total HARQ-ACK payload of the first HARQ-ACK and the second HARQ-ACK is more than 2 bits, and
determine a PUCCH resource from sets of PUCCH resources configured for priority index 1 based on the total HARQ-ACK payload of the first HARQ-ACK with priority index 1 and the second HARQ-ACK with priority index 0; and
receiving circuitry configured to receive a multiplexed HARQ-ACK, which is formed by multiplexing the first HARQ-ACK with priority index 1 and the second HARQ-ACK with priority index 0, on the determined PUCCH resource with priority index 1.
5 . The gNB of claim 4 , wherein in a case that the total HARQ-ACK payload exceeds a maximum payload size of all the configured sets of HARQ-ACK PUCCH resources for priority index 1, the receiving circuitry is further configured to:
receive the first HARQ-ACK with priority index 1 on another PUCCH resource with priority index 1 based on a payload of the first HARQ-ACK with priority index 1, and
drop the second HARQ-ACK with priority index 0.
6 . The gNB of claim 4 , wherein in a case that the total HARQ-ACK payload exceeds a maximum payload size of all the configured sets of HARQ-ACK PUCCH resources for priority index 1, the processor is further configured to:
perform a payload reduction on the second HARQ-ACK with priority index 0 to generate a payload reduced HARQ-ACK with priority index 0,
determine another PUCCH resource from the sets of PUCCH resources configured for priority index 1 based on a total HARQ-ACK payload of the first HARQ-ACK with priority index 1 and the payload reduced HARQ-ACK with priority index 0; and
the receiving circuitry is further configured to receive another multiplexed HARQ-ACK, which is formed by multiplexing the first HARQ-ACK with priority index 1 and the payload reduced HARQ-ACK with priority index 0, on the other determined PUCCH resource with priority index 1.
7 . A method performed by a user equipment (UE), the method comprising:
determining that a first physical uplink control channel (PUCCH) with priority index 1 carrying a first hybrid automatic repeat request-acknowledgement (HARQ-ACK) with priority index 1 overlaps with a second PUCCH with priority index 0 carrying a second HARQ-ACK with priority index 0, and determining a total HARQ-ACK payload of the first HARQ-ACK and the second HARQ-ACK is more than 2 bits;
determining a PUCCH resource from sets of PUCCH resources configured for priority index 1 based on the total HARQ-ACK payload of the first HARQ-ACK with priority index 1 and the second HARQ-ACK with priority index 0;
multiplexing the first HARQ-ACK with priority index 1 and the second HARQ-ACK with priority index 0 on the determined PUCCH resource with priority index 1; and
transmitting the multiplexed HARQ-ACK on the determined PUCCH resource with priority index 1.