Methods to multiplex control information in accordance with multi-slot transmissions in new radio (NR) systems

1. An apparatus, comprising:

at least one processor configured to cause a user equipment (UE) to:

decode control signaling to configure transmission of:

a first physical uplink control channel (PUCCH) that includes first uplink control information (UCI) of a first UCI type, and

a second PUCCH that includes second UCI of a second UCI type,

wherein candidate UCI types include: hybrid automatic repeat request acknowledgement (HARQ-ACK), scheduling request (SR), and channel state information (CSI) report,

wherein priorities corresponding to the candidate UCI types are ranked in accordance with a predetermined prioritization;

wherein for transmission of the first PUCCH over more than one slot and transmission of the second PUCCH over one or more slots, if the transmissions of the first PUCCH and the second PUCCH would overlap in a number of slots, the at least one processor is further configured to:

if the first UCI type and the second UCI type are not of the same priority, the first PUCCH includes a HARQ-ACK or SR to be transmitted on multiple slots, the second PUCCH includes a CSI report to be transmitted on a single slot, the single slot overlaps one of the multiple slots, and a timeline criterion is satisfied:

encode, for transmission, in the overlapping slots, the PUCCH that includes the UCI type of highest priority; and

refrain from transmission in the overlapping slots, and without postponement of the transmission, of the PUCCH that includes the UCI type of lowest priority,

wherein the timeline criterion is based on:

a first time difference between an end time of a physical downlink shared channel (PDSCH) and a start time of one of the first and second PUCCHs, and a second time difference between an end time of a physical downlink control channel (PDCCH) and the start time of the one of the first and second PUCCHs.

2. The apparatus of claim 1 , wherein for the prioritization of the candidate UCI types:

a priority of the HARQ-ACK is higher than a priority of the SR, and

the priority of the SR is higher than a priority of the CSI report.

3. The apparatus of claim 1 , wherein the at least one processor is further configured to:

in the number of slots of overlap, if the first UCI type and the second UCI type are of the same priority:

encode, for transmission, the PUCCH for which the transmission starts earliest; and

refrain from transmission of the PUCCH for which the transmission starts latest without postponement of the transmission.

4. The apparatus of claim 1 , wherein the at least one processor is further configured to:

decode control signaling to configure a number of slots for repetition of the first or second PUCCHs; and

refrain from multiplexing of different UCI types in a PUCCH transmission if the number of slots for repetition is greater than one without postponement of the transmission.

5. The apparatus of claim 1 , wherein the at least one processor is further configured to:

decode control signaling to configure transmission of a physical uplink shared channel (PUSCH); and

for transmission of one of the PUCCHs over a first number of slots, the first number greater than one, and transmission of the PUSCH over a second number of slots, if the PUCCH transmission would overlap with the PUSCH transmission in one or more slots,

in the overlapping slots:

encode the PUCCH for transmission; and

refrain from transmission of the PUSCH without postponement of the transmission.

6. The apparatus of claim 1 , wherein the at least one processor is further configured to:

for transmission of positive or negative SR in a resource using PUCCH format 0 and HARQ-ACK information bits in a resource using PUCCH format 1 in a slot:

encode, for transmission in the resource, a PUCCH to include the HARQ-ACK information bits; and

refrain from transmission in the resource of PUCCHs that include the SR without postponement of the transmission.

7. The apparatus of claim 6 , the at least one processor is further configured to:

decode control signaling that configures the UE with overlapping resources for PUCCH transmissions or for PUCCH and PUSCH transmissions, and each PUCCH transmission is over a single slot without repetition.

8. The apparatus of claim 1 , wherein:

if the first PUCCH includes a CSI report to be transmitted on multiple slots,

if the second PUCCH includes a HARQ-ACK or SR to be transmitted on a single slot, and

if the single slot overlaps one of the multiple slots,

the at least one processor is further configured to:

refrain from transmission of the first PUCCH without postponement of the transmission; and

encode the second PUCCH for transmission in the multiple slots, including the overlapping slot.

9. The apparatus of claim 1 , wherein:

if a multi-slot PUCCH with multiple repetitions carrying HARQ-ACK feedback and a CSI report overlaps with a PUSCH repetition, wherein the PUSCH is a single slot PUSCH or a multi-slot PUSCH, the at least one processor is further configured to:

refrain from transmission of the PUSCH in overlapping slots without postponement of the transmission; and

encode the PUCCH for transmission in multiple slots, including the overlapping slot.

10. The apparatus of claim 1 , wherein:

if a multi-slot PUCCH overlaps with a PUSCH repetition in one or more slots, the at least one processor is further configured to:

refrain from transmission of the PUSCH in overlapping slots without postponement of the transmission; and

encode the PUCCH for transmission in multiple slots, including the overlapping slot.

11. The apparatus of claim 1 , wherein the UE is arranged to operate in accordance with a new radio (NR) protocol.

12. The apparatus of claim 1 , wherein:

the at least one processor includes a baseband processor to encode the first and second PUCCHs,

the apparatus further comprises a transceiver to transmit the first and second PUCCHs.

13. A non-transitory computer-readable storage medium storing program instructions executable by at least one processor to cause a base station (BS) to:

encode, for transmission, control signaling to configure a User Equipment (UE) for transmission of multiple physical uplink control channels (PUCCHs), each PUCCH configurable to include uplink control information (UCI), each UCI of a UCI type,

wherein candidate UCI types include: hybrid automatic repeat request acknowledgement (HARQ-ACK), scheduling request (SR), and channel state information (CSI) report,

wherein a priority of the HARQ-ACK is higher than a priority of the SR, and the priority of the SR is higher than a priority of the CSI report;

for reception of a first PUCCH over more than one slot and a second PUCCH over one or more slots, wherein the first PUCCH includes a first UCI and the second PUCCH includes a second UCI:

if transmissions of the first PUCCH and the second PUCCH would overlap in a number of slots, the first UCI type and the second UCI type are not of the same priority in the overlapping slots, the first PUCCH includes a HARQ-ACK or SR to be transmitted on a single slot, the single slot overlaps one of the multiple slots, and a timeline criterion is satisfied:

decode the PUCCH that includes the UCI type of highest priority; and

refrain from decoding of the UCI type of lowest priority, and without postponement of the decoding;

wherein the timeline criterion is based on:

a first time difference between an end time of a physical downlink shared channel (PDSCH) and a start time of one of the first and second PUCCHs, and a second time difference between an end time of a physical downlink control channel (PDCCH) and the start time of the one of the first and second PUCCHs.

14. The non-transitory computer-readable storage medium of claim 13 , wherein the program instructions are further executable to:

encode control signaling to configure transmission of a physical uplink shared channel (PUSCH); and

for transmission of one of the PUCCHs over a first number of slots, the first number greater than one, and transmission of the PUSCH over a second number of slots, if the PUCCH transmission would overlap with the PUSCH transmission in one or more slots,

in the overlapping slots:

decode the PUCCH; and

refrain from decoding of the PUSCH without postponement of the decoding.

15. A non-transitory computer-readable storage medium storing program instructions executable by one or more processors to cause a user equipment (UE) to:

decode control signaling to configure transmission of:

a first physical uplink control channel (PUCCH) that includes first uplink control information (UCI) of a first UCI type, and

a second PUCCH that includes second UCI of a second UCI type,

wherein candidate UCI types include: hybrid automatic repeat request acknowledgement (HARQ-ACK), scheduling request (SR), and channel state information (CSI) report,

wherein priorities corresponding to the candidate UCI types are ranked in accordance with a predetermined prioritization;

wherein for transmission of the first PUCCH over more than one slot and transmission of the second PUCCH over one or more slots, if the transmissions of the first PUCCH and the second PUCCH would overlap in a number of slots, the program instructions are further executable to:

if the first UCI type and the second UCI type are not of the same priority, the first PUCCH includes a HARQ-ACK or SR to be transmitted on multiple slots, the second PUCCH includes a CSI report to be transmitted on a single slot, the single slot overlaps one of the multiple slots, and a timeline criterion is satisfied:

encode, for transmission, in the overlapping slots, the PUCCH that includes the UCI type of highest priority; and

refrain from transmission in the overlapping slots, and without postponement of the transmission, of the PUCCH that includes the UCI type of lowest priority,

wherein the timeline criterion is based on:

a first time difference between an end time of a physical downlink shared channel (PDSCH) and a start time of one of the first and second PUCCHs, and a second time difference between an end time of a physical downlink control channel (PDCCH) and the start time of the one of the first and second PUCCHs.

16. The non-transitory computer-readable storage medium of claim 15 , wherein for the prioritization of the candidate UCI types:

a priority of the HARQ-ACK is higher than a priority of the SR, and

the priority of the SR is higher than a priority of the CSI report.

17. The non-transitory computer-readable storage medium of claim 15 , wherein the program instructions are further executable to:

in the number of slots of overlap, if the first UCI type and the second UCI type are of the same priority:

encode, for transmission, the PUCCH for which the transmission starts earliest; and

refrain from transmission of the PUCCH for which the transmission starts latest without postponement of the transmission.

18. The non-transitory computer-readable storage medium of claim 15 , wherein the program instructions are further executable to:

decode control signaling to configure a number of slots for repetition of the first or second PUCCHs; and

refrain from multiplexing of different UCI types in a PUCCH transmission if the number of slots for repetition is greater than one without postponement of the transmission.

19. The non-transitory computer-readable storage medium of claim 15 , wherein the program instructions are further executable to:

decode control signaling to configure transmission of a physical uplink shared channel (PUSCH); and

for transmission of one of the PUCCHs over a first number of slots, the first number greater than one, and transmission of the PUSCH over a second number of slots, if the PUCCH transmission would overlap with the PUSCH transmission in one or more slots,

in the overlapping slots:

encode the PUCCH for transmission; and

refrain from transmission of the PUSCH without postponement of the transmission.

20. The non-transitory computer-readable storage medium of claim 15 , wherein the program instructions are further executable to:

for transmission of positive or negative SR in a resource using PUCCH format 0 and HARQ-ACK information bits in a resource using PUCCH format 1 in a slot:

encode, for transmission in the resource, a PUCCH to include the HARQ-ACK information bits; and

refrain from transmission in the resource of PUCCHs that include the SR without postponement of the transmission.