User equipment capability signaling for concurrent channel transmissions

1. A method for wireless communication at a user equipment (UE), comprising:

identifying a capability of the UE to support concurrent transmissions on a maximum number of channels, wherein the maximum number of channels refers to a maximum number of channels the UE supports for concurrent transmission on a same component carrier;

identifying that the UE is scheduled to concurrently transmit on a scheduled number of channels of the same component carrier, the scheduled number of channels exceeding the maximum number of channels supported for concurrent transmissions by the UE; and

transmitting one or more concurrent transmissions on the same component carrier to a base station, the one or more concurrent transmissions being less than or equal to the maximum number of channels supported for concurrent transmission by the UE.

2. The method of claim 1 , further comprising:

reporting, to the base station, the capability of the UE to support concurrent transmissions on the maximum number of channels.

3. The method of claim 1 , further comprising:

grouping the scheduled number of channels into a number of groups that is less than or equal to the maximum number of channels supported for concurrent transmission by the UE.

4. The method of claim 3 , wherein transmitting the one or more concurrent transmissions comprises:

selecting channels for transmission from each of the groups; and

concurrently transmitting the selected channels such that one transmission per group is used for the concurrent transmission.

5. The method of claim 3 , wherein grouping the scheduled number of channels into the number of groups comprises:

grouping the scheduled number of channels into groups based at least in part on a priority level associated with each channel in the scheduled number of channels.

6. The method of claim 5 , further comprising:

determining the priority level associated with each channel based at least in part on a payload associated with each channel, a content of each channel, a service type of each channel, or a combination thereof.

7. The method of claim 5 , further comprising:

determining the priority level associated with each channel based at least in part on the channels being associated with either an ultra-reliable low-latency communications (URLLC) service or an enhanced mobile broadband (eMBB) service.

8. The method of claim 3 , wherein grouping the scheduled number of channels into the number of groups comprises:

grouping the scheduled number of channels into groups based at least in part on a priority level associated with each channel in the scheduled number of channels; and

dropping groups of lower priority so that the number of groups is less than or equal to the maximum number of channels supported for concurrent transmissions by the UE.

9. The method of claim 8 , wherein each group comprises one of the scheduled number of channels.

10. The method of claim 3 , wherein transmitting the one or more concurrent transmissions comprises:

multiplexing one or more of the selected channels within each group; and

transmitting the one or more transmissions on respective multiplexed channels for each group.

11. The method of claim 3 , further comprising:

determining a highest priority channel within each group; and

selecting channels for transmission from each of the groups, wherein the selected channels are the highest priority channels.

12. The method of claim 1 , wherein transmitting the one or more concurrent transmissions comprises:

transmitting the one or more concurrent transmissions using multiple antennas.

13. A method for wireless communication at a base station, comprising:

receiving information from a user equipment (UE) identifying a capability of the UE to support concurrent transmissions on a maximum number of channels, wherein the maximum number of channels refers to a maximum number of channels the UE supports for concurrent transmission on a same component carrier;

scheduling concurrent transmission by the UE on a scheduled number of channels of the same component carrier, the scheduled number of channels exceeding the maximum number of channels supported for concurrent transmission by the UE; and

receiving, in response to the scheduling, one or more concurrent transmissions from the UE on the same component carrier, the one or more concurrent transmissions being less than or equal to the maximum number of channels supported for concurrent transmission by the UE.

14. The method of claim 13 , wherein receiving, in response to the scheduling, one or more concurrent transmissions from the UE comprises:

receiving one or more messages via one or more of the scheduled number of channels, the scheduled number of channels being grouped into groups based at least in part on a priority level associated with each channel in the scheduled number of channels.

15. The method of claim 14 , wherein the priority level associated with each channel based at least in part on a payload associated with each channel, a content of each channel, a service type of each channel, or a combination thereof.

16. The method of claim 14 , wherein the priority level associated with each channel based at least in part on the channels being associated with either an ultra-reliable low-latency communications (URLLC) service or an enhanced mobile broadband (eMBB) service.

17. The method of claim 14 , wherein each group comprises one of the scheduled number of channels.

18. An apparatus for wireless communication at a user equipment (UE), comprising:

a processor, memory coupled with the processor; and

instructions stored in the memory and executable by the processor to cause the apparatus to:

identify a capability of the UE to support concurrent transmissions on a maximum number of channels, wherein the maximum number of channels refers to a maximum number of channels the UE supports for concurrent transmission on a same component carrier;

identify that the UE is scheduled to concurrently transmit on a scheduled number of channels of the same component carrier, the scheduled number of channels exceeding the maximum number of channels supported for concurrent transmissions by the UE; and

transmit one or more concurrent transmissions on the same component carrier to a base station, the one or more concurrent transmissions being less than or equal to the maximum number of channels supported for concurrent transmission by the UE.

19. The apparatus of claim 18 , wherein the instructions are further executable by the processor to cause the apparatus to:

report, to the base station, the capability of the UE to support concurrent transmissions on the maximum number of channels.

20. The apparatus of claim 18 , wherein the instructions are further executable by the processor to cause the apparatus to:

group the scheduled number of channels into a number of groups that is less than or equal to the maximum number of channels supported for concurrent transmission by the UE.

21. The apparatus of claim 20 , wherein the instructions to transmit the one or more concurrent transmissions are executable by the processor to cause the apparatus to:

select channels for transmission from each of the groups; and

concurrently transmit the selected channels such that one transmission per group is used for the concurrent transmission.

22. The apparatus of claim 20 , wherein the instructions to group the scheduled number of channels into the number of groups are executable by the processor to cause the apparatus to:

group the scheduled number of channels into groups based at least in part on a priority level associated with each channel in the scheduled number of channels.

23. The apparatus of claim 22 , wherein the instructions are further executable by the processor to cause the apparatus to:

determine the priority level associated with each channel based at least in part on a payload associated with each channel, a content of each channel, a service type of each channel, or a combination thereof.

24. The apparatus of claim 22 , wherein the instructions are further executable by the processor to cause the apparatus to:

determine the priority level associated with each channel based at least in part on the channels being associated with either an ultra-reliable low-latency communications (URLLC) service or an enhanced mobile broadband (eMBB) service.

25. The apparatus of claim 20 , wherein the instructions to group the scheduled number of channels into the number of groups are executable by the processor to cause the apparatus to:

group the scheduled number of channels into groups based at least in part on a priority level associated with each channel in the scheduled number of channels; and

drop groups of lower priority so that the number of groups is less than or equal to the maximum number of channels supported for concurrent transmissions by the UE.

26. The apparatus of claim 25 , wherein each group comprises one of the scheduled number of channels.

27. The apparatus of claim 20 , wherein the instructions to transmit the one or more concurrent transmissions are executable by the processor to cause the apparatus to:

multiplex one or more of the selected channels within each group; and

transmit the one or more transmissions on respective multiplexed channels for each group.

28. The apparatus of claim 20 , wherein the instructions are further executable by the processor to cause the apparatus to:

determine a highest priority channel within each group; and

select channels for transmission from each of the groups, wherein the selected channels are the highest priority channels.

29. The apparatus of claim 18 , wherein the instructions are further executable by the processor to cause the apparatus to:

transmit the one or more concurrent transmissions using multiple antennas.

30. An apparatus for wireless communication at a base station, comprising:

a processor, memory coupled with the processor; and

instructions stored in the memory and executable by the processor to cause the apparatus to:

receive information from a user equipment (UE) identifying a capability of the UE to support concurrent transmissions on a maximum number of channels, wherein the maximum number of channels refers to a maximum number of channels the UE supports for concurrent transmission on a same component carrier;

schedule concurrent transmission by the UE on a scheduled number of channels of the same component carrier, the scheduled number of channels exceeding the maximum number of channels supported for concurrent transmission by the UE; and

receive, in response to the scheduling, one or more concurrent transmissions from the UE on the same component carrier, the one or more concurrent transmissions being less than or equal to the maximum number of channels supported for concurrent transmission by the UE.