Channel quality indicator (CQI) reporting for ultra-reliable low latency communications (URLLC)

1. A base station for wireless communication, comprising:

a memory; and

one or more processors, coupled to the memory, configured to:

determine a block error rate (BLER) target for communications associated with the;

determine at least a resource allocation pattern for transmission of channel state information reference signals (CSI-RS) based at least in part on the BLER target, wherein the resource allocation pattern indicates time resources to be used for transmitting the CSI-RS;

transmit the CSI-RS using at least the resource allocation pattern;

determine a reporting timeline, associated with reporting a channel quality indicator (CQI) report, based at least in part on the BLER target a table that indicates a mapping between a plurality of BLER targets and a corresponding plurality of reporting timelines; and

monitor for the CQI report according to the reporting timeline, wherein the CQI report is received based at least in part on transmitting the CSI-RS.

2. The base station of claim 1 , wherein the resource allocation pattern indicates more resources for the CSI-RS when the BLER target is lower, or wherein the resource allocation pattern indicates fewer resources for the CSI-RS when the BLER target is higher.

3. The base station of claim 1 , wherein the resource allocation pattern indicates that the CSI-RS are to be transmitted more frequently when the BLER target is lower, or wherein the resource allocation pattern indicates that the CSI-RS are to be transmitted less frequently when the BLER target is higher.

4. The base station of claim 1 , wherein the resource allocation pattern indicates that the CSI-RS are to be transmitted on a larger number of bits when the BLER target is lower, or wherein the resource allocation pattern indicates that the CSI-RS are to be transmitted on a smaller number of bits when the BLER target is higher.

5. The base station of claim 4 , wherein the smaller number of bits includes less than five bits.

6. The base station of claim 1 , wherein the CSI-RS are transmitted with a higher transmission power when the BLER target is lower, or wherein the CSI-RS are transmitted with a lower transmission power when the BLER target is higher.

7. The base station of claim 1 , wherein the CSI-RS includes at least one of:

a non-zero power (NZP) CSI-RS,

an interference measurement resource (IMR), or

some combination thereof.

8. The base station of claim 1 , wherein the resource allocation pattern is determined based at least in part on a table, stored in memory of the base station, that indicates a mapping between the plurality of BLER targets and a corresponding plurality of resource allocation patterns.

9. The base station of claim 1 , wherein the one or more processors are further configured to:

determine a number of bits to be used to indicate a CQI index based at least in part on the BLER target;

receive the CQI index based at least in part on transmitting the CSI-RS; and

decode the CQI index based at least in part on the determined number of bits.

10. The base station of claim 9 , wherein the number of bits is determined based at least in part on a table, stored in the memory of the base station, that indicates a mapping between the plurality of BLER targets and a corresponding plurality of number of bits to be used to indicate the CQI index.

11. The base station of claim 1 , wherein the reporting timeline is a longer timeline when the BLER target is lower, or wherein the reporting timeline is a shorter timeline when the BLER target is higher.

12. The base station of claim 1 , wherein the table is stored in the memory.

13. The base station of claim 1 , wherein the resource allocation pattern further indicates a number of the CSI-RS to be transmitted.

14. A method of wireless communication performed by a base station, comprising:

determining a block error rate (BLER) target for communications associated with the base station;

determining at least a resource allocation pattern for transmission of channel state information reference signals (CSI-RS) based at least in part on the BLER target, wherein the resource allocation pattern indicates time resources to be used for transmitting the CSI-RS;

transmitting the CSI-RS using at least the resource allocation pattern;

determining a reporting timeline, associated with reporting a channel quality indicator (CQI) report, based at least in part on the BLER target a table that indicates a mapping between a plurality of BLER targets and a corresponding plurality of reporting timelines; and

monitoring for the CQI report according to the reporting timeline, wherein the CQI report is received based at least in part on transmitting the CSI-RS.

15. The method of claim 14 , wherein the resource allocation pattern indicates more resources for the CSI-RS when the BLER target is lower, or wherein the resource allocation pattern indicates fewer resources for the CSI-RS when the BLER target is higher.

16. The method of claim 14 , wherein the resource allocation pattern indicates that the CSI-RS are to be transmitted more frequently when the BLER target is lower, or wherein the resource allocation pattern indicates that the CSI-RS are to be transmitted less frequently when the BLER target is higher.

17. The method of claim 14 , wherein the resource allocation pattern indicates that the CSI-RS are to be transmitted on a larger number of bits when the BLER target is lower, or wherein the resource allocation pattern indicates that the CSI-RS are to be transmitted on a smaller number of bits when the BLER target is higher.

18. The method of claim 14 , wherein the CSI-RS are transmitted with a higher transmission power when the BLER target is lower, or wherein the CSI-RS are transmitted with a lower transmission power when the BLER target is higher.

19. The method of claim 14 , wherein the CSI-RS includes at least one of:

a non-zero power (NZP) CSI-RS,

an interference measurement resource (IMR), or

some combination thereof.

20. The method of claim 14 , wherein the resource allocation pattern is determined based at least in part on a table, stored in memory of the base station, that indicates a mapping between the plurality of BLER targets and a corresponding plurality of resource allocation patterns.

21. The method of claim 14 , further comprising:

determining a number of bits to be used to indicate a CQI index based at least in part on the BLER target;

receiving the CQI index based at least in part on transmitting the CSI-RS; and

decoding the CQI index based at least in part on the determined number of bits.

22. The method of claim 14 , wherein the resource allocation pattern further indicates a number of the CSI-RS to be transmitted.

23. A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising:

one or more instructions that, when executed by one or more processors of a base station, cause the base station to:

determine a block error rate (BLER) target for communications associated with the base station;

determine at least a resource allocation pattern for transmission of channel state information reference signals (CSI-RS) based at least in part on the BLER target, wherein the resource allocation pattern indicates time resources to be used for transmitting the CSI-RS;

transmit the CSI-RS using at least the resource allocation pattern;

determine a reporting timeline, associated with reporting a channel quality indicator (CQI) report, based at least in part on the BLER target a table that indicates a mapping between a plurality of BLER targets and a corresponding plurality of reporting timelines; and

monitor for the CQI report according to the reporting timeline, wherein the CQI report is received based at least in part on transmitting the CSI-RS.

24. The non-transitory computer-readable medium of claim 23 , wherein the resource allocation pattern indicates more resources for the CSI-RS when the BLER target is lower, or wherein the resource allocation pattern indicates fewer resources for the CSI-RS when the BLER target is higher.

25. The non-transitory computer-readable medium of claim 23 , wherein the resource allocation pattern indicates that the CSI-RS are to be transmitted more frequently when the BLER target is lower, or wherein the resource allocation pattern indicates that the CSI-RS are to be transmitted less frequently when the BLER target is higher.

26. The non-transitory computer-readable medium of claim 23 , wherein the resource allocation pattern indicates that the CSI-RS are to be transmitted on a larger number of bits when the BLER target is lower, or wherein the resource allocation pattern indicates that the CSI-RS are to be transmitted on a smaller number of frequencies bits when the BLER target is higher.

27. The non-transitory computer-readable medium of claim 23 , wherein the CSI-RS are transmitted with a higher transmission power when the BLER target is lower, or wherein the CSI-RS are transmitted with a lower transmission power when the BLER target is higher.

28. The non-transitory computer-readable medium of claim 23 , wherein the CSI-RS includes at least one of:

a non-zero power (NZP) CSI-RS,

an interference measurement resource (IMR), or

some combination thereof.

29. An apparatus for wireless communication, comprising:

means for determining a block error rate (BLER) target for communications associated with the apparatus;

means for determining at least a resource allocation pattern for transmission of channel state information reference signals (CSI-RS) based at least in part on the BLER target, wherein the resource allocation pattern indicates time resources to be used for transmitting the CSI-RS;

means for transmitting the CSI-RS using at least the resource allocation pattern;

means for determining a reporting timeline, associated with reporting a channel quality indicator (CQI) report, based at least in part on the BLER target a table that indicates a mapping between a plurality of BLER targets and a corresponding plurality of reporting timelines; and

means for monitoring for the CQI report according to the reporting timeline, wherein the CQI report is received based at least in part on transmitting the CSI-RS.

30. The non-transitory computer-readable medium of claim 23 , wherein the resource allocation pattern further indicates a number of the CSI-RS to be transmitted.