Quasi co-location related priority rules for multi-downlink control information based multi-transmission/reception point
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine that the UE is to monitor physical downlink control channel (PDCCH) candidates in overlapping PDCCH monitoring occasions in multiple control resource sets (CORESETs) having different quasi co-location type properties on active downlink bandwidth parts of one or more cells, where the UE is configured with multiple downlink control information based multiple transmission/reception point operation. The UE may determine a set of prioritized CORESETs, each of the set of prioritized CORESETs being included in a respective CORESET group of a set of CORESET groups, and monitor one or more PDCCH candidates in the determined set of prioritized CORESETs. Numerous other aspects are provided.
1. An apparatus for wireless communication, comprising:
one or more memories comprising instructions; and
one or more processors configured to execute the instructions to cause the apparatus to:
identify a set of prioritized control resource sets (CORESETs), each prioritized CORESET of the set of prioritized CORESETs being included in a respective CORESET group of a set of CORESET groups; and
monitor one or more physical downlink control channel (PDCCH) candidates in the set of prioritized CORESETs,
wherein the apparatus is configured to monitor PDCCH candidates in overlapping PDCCH monitoring occasions associated with multiple CORESETs having different quasi co-location (QCL) type properties via active downlink bandwidth parts of one or more cells, and
wherein the apparatus is configured with multi-downlink control information (DCI) based multi-transmission/reception point (TRP) operation.
2. The apparatus of claim 1 , wherein the apparatus is capable of concurrently receiving at least two channels with different QCL type properties.
3. The apparatus of claim 2 , wherein the different QCL type properties are different QCL Type D properties.
4. The apparatus of claim 1 , wherein the one or more cells are in a same frequency band.
5. The apparatus of claim 1 , wherein, for a first CORESET group of the set of CORESET groups, one or more PDCCH candidates in one or more other CORESETs are monitored, the one or more other CORESETs having the same QCL type properties as a prioritized CORESET associated with the first CORESET group.
6. The apparatus of claim 5 , wherein the one or more other CORESETs are included in the first CORESET group.
7. The apparatus of claim 5 , the one or more other CORESETs include a CORESET included in another CORESET group of the set of CORESET groups.
8. The apparatus of claim 1 , wherein, for each CORESET group of the set of CORESET groups, a respective prioritized CORESET is identified in accordance with a priority rule.
9. The apparatus of claim 8 , wherein the priority rule prioritizes CORESETs corresponding to common search spaces over CORESETs corresponding to user equipment (UE)-specific search spaces.
10. The apparatus of claim 8 , wherein the priority rule prioritizes CORESETs corresponding to search spaces with a lowest search space set index in cells with a lowest cell index.
11. The apparatus of claim 8 , wherein the priority rule is applied based at least in part on QCL type properties being different among at least two of the multiple CORESETs.
12. The apparatus of claim 1 , wherein the set of CORESET groups includes the multiple CORESETs.
13. The apparatus of claim 1 , wherein the apparatus is incapable of concurrently receiving at least two channels with different QCL type properties.
14. The apparatus of claim 1 , wherein a particular CORESET group is prioritized based at least in part on the UE being incapable of concurrently receiving at least two channels with different QCL type properties.
15. The apparatus of claim 1 , wherein a particular CORESET group is prioritized based at least in part on the particular CORESET group being associated with a particular higher layer index.
16. The apparatus of claim 1 , wherein a particular CORESET group is prioritized based at least in part on a particular CORESET being included in the particular CORESET group.
17. A method of wireless communication performed at a user equipment (UE), comprising:
identifying a set of prioritized control resource sets (CORESETs), each prioritized CORESET of the set of prioritized CORESETs being included in a respective CORESET group of a set of CORESET groups; and
monitoring one or more physical downlink control channel (PDCCH) candidates in the set of prioritized CORESETs,
wherein the UE is configured to monitor PDCCH candidates in overlapping PDCCH monitoring occasions associated with multiple CORESETs having different quasi co-location (QCL) type properties via active downlink bandwidth parts of one or more cells, and
wherein the UE is configured with multi-downlink control information (DCI) based multi-transmission/reception point (TRP) operation.
18. The method of claim 17 , the UE is capable of concurrently receiving at least two channels with different QCL type properties.
19. The method of claim 17 , wherein the one or more cells are in a same frequency band.
20. The method of claim 17 , wherein, for a first CORESET group of the set of CORESET groups, one or more PDCCH candidates in one or more other CORESETs are monitored, the one or more other CORESETs having the same QCL type properties as a prioritized CORESET associated with the first CORESET group.
21. The method of claim 20 , wherein the one or more other CORESETs are included in the first CORESET group.
22. The method of claim 20 , the one or more other CORESETs include a CORESET included in another CORESET group of the set of CORESET groups.
23. The method of claim 17 , wherein, for each CORESET group of the set of CORESET groups, a respective prioritized CORESET is identified in accordance with a priority rule.
24. The method of claim 23 , wherein the priority rule prioritizes CORESETs corresponding to common search spaces over CORESETs corresponding to UE-specific search spaces.
25. The method of claim 23 , wherein the priority rule prioritizes CORESETs corresponding to search spaces with a lowest search space set index in cells with a lowest cell index.
26. The method of claim 23 , wherein the priority rule is applied based at least in part on QCL type properties being different among at least two of the multiple CORESETs.
27. The method of claim 17 , wherein a particular CORESET group is prioritized based at least in part on the particular CORESET group being associated with a particular higher layer index.
28. The method of claim 17 , wherein a particular CORESET group is prioritized based at least in part on a particular CORESET being included in the particular CORESET group.
29. An apparatus for wireless communication, comprising:
means for identifying a set of prioritized control resource sets (CORESETs), each prioritized CORESET of the set of prioritized CORESETs being included in a respective CORESET group of a set of CORESET groups; and
means for monitoring one or more physical downlink control channel (PDCCH) candidates in the set of prioritized CORESETs,
wherein the apparatus is configured to monitor PDCCH candidates in overlapping PDCCH monitoring occasions associated with multiple CORESETs having different quasi co-location (QCL) type properties via active downlink bandwidth parts of one or more cells, and
wherein the apparatus is configured with multi-downlink control information (DCI) based multi-transmission/reception point (TRP) operation.
30. A user equipment, comprising:
one or more transceivers;
one or more memories comprising instructions; and
one or more processors configured to execute the instructions to cause the UE to:
identify a set of prioritized control resource sets (CORESETs), each prioritized CORESET of the set of prioritized CORESETs being included in a respective CORESET group of a set of CORESET groups; and
monitor, via the one or more transceivers, one or more physical downlink control channel (PDCCH) candidates in the set of prioritized CORESETs,
wherein the UE is configured to monitor PDCCH candidates in overlapping PDCCH monitoring occasions associated with multiple CORESETs having different quasi co-location (QCL) type properties via active downlink bandwidth parts of one or more cells, and
wherein the UE is configured with multi-downlink control information (DCI) based multi-transmission/reception point (TRP) operation.