UE configured for multiplexing HARQ-ACK bits of different priorities in a PUCCH transmission

A non-transitory computer-readable storage medium that stores instructions for execution by processing circuitry of a user equipment (UE) configured for operation in a fifth-generation system (5GS),

• wherein the processing circuitry is configured to:
• decode radio-resource control (RRC) configuration information to configure the UE with a first hybrid-automatic repeat request (HARQ) acknowledgement (ACK) (HARQ-ACK) codebook for first priority HARQ-ACK bits and configure the UE with a second HARQ-ACK codebook for second priority HARQ-ACK bits,
• the configuration information indicating a first physical uplink control channel (PUCCH) configuration for a first PUCCH resource for the first HARQ-ACK codebook and a second PUCCH configuration for a second PUCCH resource for the second HARQ-ACK codebook;
• and
• multiplex the first priority HARQ-ACK bits and the second priority HARQ-ACK bits in a PUCCH transmission when the first and second PUCCH resources,
• wherein the processing circuitry is configured to select a resultant PUCCH resource based on the second PUCCH configuration to multiplex the first priority HARQ-ACK bits and the second priority HARQ-ACK bits when the second priority has a priority index of one and the first priority has a priority index of zero,
• wherein when the second PUCCH resource configuration is sub-slot based and the second PUCCH resource has a duration of less than a slot, the resultant PUCCH resource is selected to at least one of:
• extend in time beyond the second PUCCH resource to a sub-slot boundary within a slot that includes the second PUCCH resource when the second PUCCH resource ends before the sub-slot boundary;
• and
• extend in frequency beyond a frequency of the second PUCCH resource within the slot.

An apparatus of a generation node B (gNB) configured for operation in a fifth-generation system (5GS), the apparatus comprising:

• processing circuitry;
• and memory,
• wherein the processing circuitry is configured to:
• encode radio-resource control (RRC) configuration information to configure a user equipment (UE) with a first hybrid-automatic repeat request (HARQ) acknowledgement (ACK) (HARQ-ACK) codebook for first priority HARQ-ACK bits and to configure the UE with a second HARQ-ACK codebook for second priority HARQ-ACK bits, the configuration information indicating a first physical uplink control channel (PUCCH) configuration for a first PUCCH resource for the first HARQ-ACK codebook and a second PUCCH configuration for a second PUCCH resource for the second HARQ-ACK codebook;
• decode a PUCCH transmission comprising the first priority HARQ-ACK bits and the second priority HARQ-ACK bits, the first priority HARQ-ACK bits and the second priority HARQ-ACK bits multiplexed in the PUCCH transmission when the first and second PUCCH resources overlap in time,
• wherein the processing circuitry is configured to decode the PUCCH transmission received on a resultant PUCCH resource based on the second PUCCH configuration when the second priority has a priority index of one and the first priority has a priority index of zero,
• wherein when the second PUCCH resource configuration is sub-slot based and the second PUCCH resource has a duration of less than a slot, the resultant PUCCH resource is at least one of:
• extended in time beyond the second PUCCH resource to a sub-slot boundary within a slot that includes the second PUCCH resource when the second PUCCH resource ends before the sub-slot boundary;
• and
• extended in frequency beyond a frequency of the second PUCCH resource within the slot, and
• wherein the memory is configured to store the configuration information.