Counting active resources for UE processing complexity related capability

1. A base station, comprising:

at least one antenna;

at least one radio coupled to the at least one antenna; and

a processor coupled to the at least one radio, wherein the processor is configured to:

count a total number of active resources in a slot, wherein an active resource is defined for counting a number of channel state information (CSI) resources a user equipment (UE) needs to process simultaneously in a slot; and

in a slot within which a synchronization signal block (SSB) is transmitted, count 1 active resource for each SSB with a unique SSB index.

2. The base station of claim 1 , wherein the processor is further configured to:

count 1 active resource only in a slot within which the CSI-reference signal (RS) is transmitted; and

for each CSI-interference measurement (IM) in a slot within which the CSI-IM is transmitted, count 1 active resource.

3. The base station of claim 1 , wherein the processor is further configured to:

wherein a single Non Zero Power (NZP) CSI-reference signal (RS) is configured for a first set of purposes, count a number of active resources with respect to the single NZP CSI-RS in a corresponding slot; and

wherein the single NZP CSI-RS is configured for a second set of purposes, double count a number of active resources with respect to the single NZP CSI-RS in a corresponding slot by a number of purposes in the second set of purposes.

4. The base station of claim 1 , wherein the slot is a reference slot, the processor is further configured to:

count 1 active resource in an actual slot, where the reference slot overlaps a part of the actual slot during which a CSI resource corresponding to the active resource is transmitted.

5. The base station of claim 1 , wherein the processor is further configured to:

for a CSI report configuration, count a total number of active resources in every slot affected by the CSI report configuration;

determine whether the total number of active resources in every slot affected by the CSI report configuration does not exceed a maximum number of CSI resources the UE can process simultaneously in a slot; and

in response to determining that the number of active resources in every slot affected by the CSI report configuration does not exceed the maximum number of CSI resources the UE can process simultaneously in a slot, apply the CSI report configuration to the UE.

6. The base station of claim 1 , wherein the processor is further configured to:

count a total number of active resources in every slot caused by existing reference signals;

set a new CSI report configuration in view of a result of the counting and a maximum number of CSI resources the UE can process simultaneously in a slot, so that applying the CSI report configuration will not result in a total number of active resources in every slot affected by the new CSI report configuration exceeding the maximum number of CSI resources the UE can process simultaneously in a slot; and

apply the new CSI report configuration to the UE.

7. The base station of claim 5 , wherein the processor is further configured to:

receive from the UE a capability report indicating the maximum number of CSI resources the UE can process simultaneously in a slot.

8. A method for a base station, comprising:

counting a total number of active resources in a slot, wherein an active resource is defined for counting a number of channel state information (CSI) resources a user equipment (UE) needs to process simultaneously in a slot; and

in a slot within which a CSI-reference signal (RS) is transmitted, counting 1 active resource for each CSI-RS.

9. The method of claim 8 , further comprising

in a slot within which a synchronization signal block (SSB) is transmitted, counting 1 active resource for each SSB with a unique SSB index.

10. The method of claim 8 , further comprising:

for each Zero Power RS for Interference Measurement (CSI-IM)-in a slot within which the CSI-IM is transmitted, counting 1 active resource.

11. The method of claim 8 , further comprising:

wherein a single Non Zero Power (NZP) CSI-RS is configured for a first set of purposes, counting a number of active resources with respect to the single NZP CSI-RS in a corresponding slot; and

wherein the single NZP CSI-RS is configured for a second set of purposes, double counting a number of active resources with respect to the single NZP CSI-RS in a corresponding slot by a number of purposes in the second set of purposes.

12. The method of claim 8 , wherein the slot is a reference slot, the method further comprises

counting 1 active resource in an actual slot, where the reference slot overlaps a part of the actual slot during which a CSI resource corresponding to the active resource is transmitted.

13. The method of claim 8 , further comprising:

for a CSI report configuration, counting a total number of active resources in every slot affected by the CSI report configuration;

determining whether the total number of active resources in every slot affected by the CSI report configuration does not exceed a maximum number of CSI resources the UE can process simultaneously in a slot; and

in response to determining that the number of active resources in every slot affected by the CSI report configuration does not exceed the maximum number of CSI resources the UE can process simultaneously in a slot, applying the CSI report configuration to the UE.

14. The method of claim 8 , further comprising:

counting a total number of active resources in every slot affected by an existing CSI report configuration and synchronization signal block (SSB);

setting a new CSI report configuration in view of a result of the counting and a maximum number of CSI resources the UE can process simultaneously in a slot, so that applying the CSI report configuration will not result in a total number of active resources in every slot affected by the new CSI report configuration exceeding the maximum number of CSI resources the UE can process simultaneously in a slot; and

applying the new CSI report configuration to the UE.

15. The method of claim 14 , further comprising:

receiving from the UE a capability report indicating the maximum number of CSI resources the UE can process simultaneously in a slot.

16. A non-transitory computer-readable medium storing instructions that, when executed by a processor of a base station, cause the base station to perform operations, the operations comprising:

counting a total number of active resources in a slot, wherein an active resource is defined for counting a number of channel state information (CSI) resources a user equipment (UE) needs to process simultaneously in a slot; and

counting 1 active resource in an actual slot, where a reference slot overlaps a part of the actual slot during which a CSI resource corresponding to the active resource is transmitted.

17. The non-transitory computer-readable medium of claim 16 , wherein the operations further comprise: in a slot within which a synchronization signal block (SSB) is transmitted, counting 1 active resource for each SSB with a unique SSB index.

18. The non-transitory computer-readable medium of claim 16 , wherein the operations further comprise: for each CSI-interference measurement (IM) in a slot within which the CSI-IM is transmitted, counting 1 active resource.

19. The non-transitory computer-readable medium of claim 16 , wherein the operations further comprise:

for a CSI report configuration, counting a total number of active resources in every slot affected by the CSI report configuration;

determining whether the total number of active resources in every slot affected by the CSI report configuration does not exceed a maximum number of CSI resources the UE can process simultaneously in a slot; and

in response to determining that the number of active resources in every slot affected by the CSI report configuration does not exceed the maximum number of CSI resources the UE can process simultaneously in a slot, applying the CSI report configuration to the UE.

20. The non-transitory computer-readable medium of claim 16 , wherein the operations further comprise:

counting a total number of active resources in every slot affected by an existing CSI report configuration and synchronization signal block (SSB);

setting a new CSI report configuration in view of a result of the counting and a maximum number of CSI resources the UE can process simultaneously in a slot, so that applying the CSI report configuration will not result in a total number of active resources in every slot affected by the new CSI report configuration exceeding the maximum number of CSI resources the UE can process simultaneously in a slot; and

applying the new CSI report configuration to the UE.