UCI transmission for overlapping uplink resource assignments with repetition
Certain aspects of the present disclosure provide techniques for uplink control information (UCI) transmission for overlapping physical uplink shared channel (PUSCH) and physical uplink control channel (PUCCH) resource assignments with repetition. A method of wireless communication by a user equipment (UE) is provided. The method generally includes receiving scheduling to transmit on the PUSCH in a first one or more slots associated with a first number of repetitions and scheduling to transmit on the PUCCH in a second one or more slots associated with a second number of repetitions. The scheduled transmissions overlap in at least one slot. The method includes determining which channel to transmit UCI on and which channel to drop for each of the first and second one or more slots. The method includes transmitting or dropping the UCI in the first and second one or more slots in accordance with the determination.
1. A method for wireless communications by a user equipment (UE), comprising:
scheduling a physical uplink shared channel (PUSCH) transmission in a first one or more slots associated with a first number of repetitions;
scheduling a physical uplink control channel (PUCCH) transmission in a second one or more slots associated with a second number of repetitions, wherein the PUSCH transmission and the PUCCH transmission overlap in at least one slot;
determining that there is a sufficient number of symbols available to transmit uplink control information (UCI) in the second one or more slots; and
based on the determining that there is a sufficient number of symbols available:
transmitting the UCI on the PUCCH, and
dropping the PUSCH transmission in only the at least one overlapping slot.
2. The method of claim 1 , further comprising determining to transmit the UCI on the PUCCH and drop the PUSCH transmission in only the at least one overlapping slot based on a first priority level associated with the UCI and a second priority level associated with the PUSCH.
3. The method of claim 1 , further comprising determining to transmit the UCI on the PUCCH and drop the PUSCH transmission in only the at least one overlapping slot based on priority levels of a type of information associated with the UCI, wherein the priority levels comprise, in descending order of priority, ACK/NACK information, scheduling request (SR), a first type of channel state information (CSI), and a second type of CSI.
4. The method of claim 1 , further comprising determining to transmit the UCI on the PUCCH and drop the PUSCH transmission in only the at least one overlapping slot based on a radio resource control (RRC) configuration.
5. The method of claim 1 , further comprising determining to transmit the UCI on the PUCCH and drop the PUSCH transmission in only the at least one overlapping slot based on whether the PUCCH transmission or the PUSCH transmission is scheduled to be transmitted earlier than the other.
6. The method of claim 1 , further comprising determining to transmit the UCI on the PUCCH and drop the PUSCH transmission in only the at least one overlapping slot based on a time a resource assignment for the PUCCH transmissions is received and a time that a resource assignment for the PUSCH transmission is received.
7. The method of claim 1 , further comprising determining to transmit the UCI on the PUCCH and drop the PUSCH transmission in only the at least one overlapping slot according to a single-slot rule for transmitting UCI.
8. The method of claim 7 , further comprising determining a beam to use for transmitting the UCI in the at least one overlapping slot according to the single-slot rule.
9. The method of claim 1 , wherein the second number of repetitions is greater than 1.
10. The method of claim 1 , further comprising determining to transmit the UCI on the PUCCH and drop the PUSCH transmission in only the at least one overlapping slot based on a type of service the UE is scheduled to transmit on the PUSCH.
11. The method of claim 10 , wherein the type of service comprises enhanced mobile broadband (eMBB) service or ultra-reliable low-latency communication (URLLC) service.
12. An apparatus for wireless communications, comprising:
at least one processor; and
a memory coupled to the at least one processor, the memory comprising code executable by the at least one processor to cause the apparatus to:
schedule a physical uplink shared channel (PUSCH) transmission in a first one or more slots associated with a first number of repetitions;
schedule a physical uplink control channel (PUCCH) transmission in a second one or more slots associated with a second number of repetitions, wherein the PUSCH transmission and the PUCCH transmission overlap in at least one slot;
determine that there is a sufficient number of symbols available to transmit uplink control information (UCI) in the second one or more slots; and
based on the determining that there is a sufficient number of symbols available:
transmit the UCI on the PUCCH, and
drop the PUSCH transmission in only the at least one overlapping slot.
13. The apparatus of claim 12 , wherein the memory further comprises code executable by the at least one processor to cause the apparatus to determine to transmit the UCI on the PUCCH and drop the PUSCH transmission in only the at least one overlapping slot based on a first priority level associated with the UCI and a second priority level associated with the PUSCH.
14. The apparatus of claim 12 , wherein the memory further comprises code executable by the at least one processor to cause the apparatus to determine to transmit the UCI on the PUCCH and drop the PUSCH transmission in only the at least one overlapping slot based on priority levels of a type of information associated with the UCI, wherein the priority levels comprise, in descending order of priority, ACK/NACK information, scheduling request (SR), a first type of channel state information (CSI), and a second type of CSI.
15. The apparatus of claim 12 , wherein the memory further comprises code executable by the at least one processor to cause the apparatus to determine to transmit the UCI on the PUCCH and drop the PUSCH transmission in only the at least one overlapping slot based on a radio resource control (RRC) configuration.
16. The apparatus of claim 12 , wherein the memory further comprises code executable by the at least one processor to cause the apparatus to determine to transmit the UCI on the PUCCH and drop the PUSCH transmission in only the at least one overlapping slot based on whether the PUCCH transmission or the PUSCH transmission is scheduled to be transmitted earlier than the other.
17. The apparatus of claim 12 , wherein the memory further comprises code executable by the at least one processor to cause the apparatus to determine to transmit the UCI on the PUCCH and drop the PUSCH transmission in only the at least one overlapping slot based on a time a resource assignment for the PUCCH transmissions is received and a time that a resource assignment for the PUSCH transmission is received.
18. The apparatus of claim 12 , wherein the memory further comprises code executable by the at least one processor to cause the apparatus to determine to transmit the UCI on the PUCCH and drop the PUSCH transmission in only the at least one overlapping slot according to a single-slot rule for transmitting UCI.
19. The apparatus of claim 12 , wherein the memory further comprises code executable by the at least one processor to cause the apparatus to determine a beam to use for transmitting the UCI in the at least one overlapping slot according to a single-slot rule.
20. The apparatus of claim 12 , wherein the second number of repetitions is greater than 1.
21. The apparatus of claim 12 , wherein the memory further comprises code executable by the at least one processor to cause the apparatus to determine to transmit the UCI on the PUCCH and drop the PUSCH transmission in only the at least one overlapping slot based on a type of service the apparatus is scheduled to transmit on the PUSCH.
22. The apparatus of claim 21 , wherein the type of service comprises enhanced mobile broadband (eMBB) service or ultra-reliable low-latency communication (URLLC) service.
23. An apparatus for wireless communication, comprising:
means for scheduling a physical uplink shared channel (PUSCH) transmission in a first one or more slots associated with a first number of repetitions;
means for scheduling a physical uplink control channel (PUCCH) transmission in a second one or more slots associated with a second number of repetitions, wherein the PUSCH transmission and the PUCCH transmissions overlap in at least one slot;
means for determining that there is a sufficient number of symbols available to transmit uplink control information (UCI) in the second one or more slots;
means for transmitting the UCI on the PUCCH based on the determining that there is a sufficient number of symbols available; and
means for dropping the PUSCH transmission in only the at least one overlapping slot based on the determining that there is a sufficient number of symbols available.
24. The apparatus of claim 23 , further comprising means for determining to transmit the UCI on the PUCCH and drop the PUSCH transmission in only the at least one overlapping slot based on a first priority level associated with the UCI and a second priority level associated with the PUSCH.
25. The apparatus of claim 23 , further comprising means for determining to transmit the UCI on the PUCCH and drop the PUSCH transmission in only the at least one overlapping slot based on priority levels of a type of information associated with the UCI, wherein the priority levels comprise, in descending order of priority, ACK/NACK information, scheduling request (SR), a first type of channel state information (CSI), and a second type of CSI.
26. The apparatus of claim 23 , further comprising means for determining to transmit the UCI on the PUCCH and drop the PUSCH transmission in only the at least one overlapping slot based on a radio resource control (RRC) configuration.
27. A non-transitory computer readable medium having computer executable code stored thereon for wireless communications, comprising:
code for scheduling a physical uplink shared channel (PUSCH) transmission in a first one or more slots associated with a first number of repetitions;
code for scheduling a physical uplink control channel (PUCCH) transmission in a second one or more slots associated with a second number of repetitions, wherein the PUSCH transmission and the PUCCH transmissions overlap in at least one slot;
code for determining that there is a sufficient number of symbols available to transmit uplink control information (UCI) in the second one or more slots;
code for transmitting the UCI on the PUCCH based on the determination that there is a sufficient number of symbols available; and
code for dropping the PUSCH transmission in only the at least one overlapping slot based on the determination that there is a sufficient number of symbols available.
28. The non-transitory computer readable medium of claim 27 , further comprising code for determining to transmit the UCI on the PUCCH and drop the PUSCH transmission in only the at least one overlapping slot based on a first priority level associated with the UCI and a second priority level associated with the PUSCH.
29. The non-transitory computer readable medium of claim 27 , further comprising code for determining to transmit the UCI on the PUCCH and drop the PUSCH transmission in only the at least one overlapping slot based on priority levels of a type of information associated with the UCI, wherein the priority levels comprise, in descending order of priority, ACK/NACK information, scheduling request (SR), a first type of channel state information (CSI), and a second type of CSI.
30. The non-transitory computer readable medium of claim 27 , further comprising code for determining to transmit the UCI on the PUCCH and drop the PUSCH transmission in only the at least one overlapping slot based on a radio resource control (RRC) configuration.
31. A method for wireless communications by a user equipment (UE), comprising:
receiving scheduling for a physical uplink shared channel (PUSCH) transmission in a first one or more slots associated with a first number of repetitions;
receiving scheduling for a physical uplink control channel (PUCCH) transmission in a second one or more slots associated with a second number of repetitions, wherein the PUSCH transmission and the PUCCH transmission are scheduled to overlap in at least one slot, and wherein the scheduled PUCCH transmission in the second one or more slots includes a sufficient number of symbols available to transmit uplink control information (UCI);
transmitting the UCI on the PUCCH; and
transmitting the PUSCH transmission in the first one or more slots excluding the at least one overlapping slot.
32. The method of claim 31 , wherein the second number of repetitions is greater than 1.