Component carrier group based search space set group switching
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station, search space (SS) configuration information that indicates one or more component carrier (CC) groups and an SS set group configuration for each CC group of the one or more CC groups. The UE may receive, from the base station, a physical downlink control channel (PDCCH) communication on a CC included in a CC group, of the one or more CC groups, where receiving the PDCCH communication is based at least in part on switching between SS set groups, associated with the CC group, on each CC included in the CC group. Numerous other aspects are described.
1. A user equipment (UE) for wireless communication, comprising:
a memory; and
one or more processors coupled to the memory, the one or more processors configured to:
receive, from a network entity, search space (SS) configuration information that indicates one or more component carrier (CC) groups and an SS set group configuration for each CC group of the one or more CC groups; and
receive, from the network entity, a physical downlink control channel (PDCCH) communication on a first CC included in a CC group, of the one or more CC groups, the CC group including the first CC and a second CC different from the first CC, wherein receiving the PDCCH communication is based at least in part on switching, on the first CC and the second CC included in the CC group, from a first SS set group associated with the CC group to a second SS set group associated with the CC group.
2. The UE of claim 1 , wherein the one or more processors are further configured to:
monitor, for each CC included in the CC group, the first SS set group indicated by an SS set group configuration associated with the CC group;
identify an indication to switch SS set groups for the CC group; and
monitor, for each CC included in the CC group, the second SS set group indicated by the SS set group configuration based at least in part on the indication to switch SS set groups for the CC group.
3. The UE of claim 1 , wherein the one or more processors are configured to, when receiving the SS configuration information:
receive, for the CC group, an indication of one or more SS set groups associated with the CC group,
wherein an SS set group, of the one or more SS set groups, indicates SS sets included in the SS set group for each active bandwidth part (BWP) combination of CCs included in the CC group.
4. The UE of claim 1 , wherein the one or more processors are configured to, when receiving the SS configuration information:
receive, for the CC group, an SS set group configuration that indicates the first SS set group and the second SS set group,
wherein the SS set group configuration indicates, for each active bandwidth part (BWP) combination of the first CC and the second CC included in the CC group:
a first subgroup of one or more SS sets, associated with the first CC, that are included in the first SS set group,
a second subgroup of one or more SS sets, associated with the second CC, that are included in the first SS set group,
a third subgroup of one or more SS sets, associated with the first CC, that are included in the second SS set group, and
a fourth subgroup of one or more SS sets, associated with the second CC, that are included in the second SS set group.
5. The UE of claim 4 , wherein the first subgroup and the second subgroup are associated with a first one or more parameters, and
wherein the third subgroup and the fourth subgroup are associated with a second one or more parameters.
6. The UE of claim 1 , wherein the one or more processors are configured to, when receiving the SS configuration information:
receive, for the CC group, an indication of CCs included in the CC group, wherein the CCs included in the CC group are based at least in part on a frequency band or a numerology associated with the CCs included in the CC group.
7. The UE of claim 1 , wherein the one or more processors are further configured to:
transmit, to the network entity, an indication of CCs to be included in the CC group via a UE capability message or a UE assistance information message.
8. The UE of claim 1 , wherein the one or more processors are further configured to:
receive, from the network entity, an indication to switch SS set groups for the CC group from the first SS set group associated with the CC group to the second SS set group associated with the CC group, wherein the indication identifies at least one of:
a CC group index associated with the CC group, or
an SS set group index associated with the second SS set group.
9. A method of wireless communication performed by a user equipment (UE), comprising:
receiving, from a network entity, search space (SS) configuration information that indicates one or more component carrier (CC) groups and an SS set group configuration for each CC group of the one or more CC groups; and
receiving, from the network entity, a physical downlink control channel (PDCCH) communication on a first CC included in a CC group, of the one or more CC groups, the CC group including the first CC and a second CC different from the first CC, wherein receiving the PDCCH communication is based at least in part on switching, on the first CC and the second CC included in the CC group, from a first SS set group associated with the CC group to a second SS set group associated with the CC group.
10. The method of claim 9 , further comprising:
monitoring, for each CC included in the CC group, the first SS set group indicated by the SS set group configuration associated with the CC group; and
identifying an indication to switch SS set groups for the CC group; and
monitoring, for each CC included in the CC group, the second SS set group indicated by the SS set group configuration based at least in part on the indication to switch SS set groups for the CC group.
11. The method of claim 9 , wherein receiving the SS configuration information comprises:
receiving, for the CC group, an indication of one or more SS set groups associated with the CC group,
wherein an SS set group, of the one or more SS set groups, indicates SS sets included in the SS set group for each active bandwidth part (BWP) combination of CCs included in the CC group.
12. The method of claim 9 , wherein receiving the SS configuration information comprises:
receiving, for the CC group, an SS set group configuration that indicates the first SS set group and the second SS set group,
wherein the SS set group configuration indicates, for each active bandwidth part (BWP) combination of the first CC and the second CC included in the CC group:
a first subgroup of one or more SS sets, associated with the first CC, that are included in the first SS set group,
a second subgroup of one or more SS sets, associated with the second CC, that are included in the first SS set group,
a third subgroup of one or more SS sets, associated with the first CC, that are included in the second SS set group, and
a fourth subgroup of one or more SS sets, associated with the second CC, that are included in the second SS set group.
13. The method of claim 12 , wherein the first subgroup and the second subgroup are associated with a first one or more parameters, and
wherein the third subgroup and the fourth subgroup are associated with a second one or more parameters.
14. The method of claim 9 , wherein receiving the SS configuration information comprises:
receiving, for the CC group, an indication of CCs included in the CC group, wherein the CCs included in the CC group are based at least in part on a frequency band or a numerology associated with the CCs included in the CC group.
15. The method of claim 9 , further comprising:
transmitting, to the network entity, an indication of CCs to be included in the CC group via a UE capability message or a UE assistance information message.
16. The method of claim 9 , further comprising:
receiving, from the network entity, an indication to switch SS set groups for the CC group from the first SS set group associated with the CC group to the second SS set group associated with the CC group, wherein the indication identifies at least one of:
a CC group index associated with the CC group, or
an SS set group index associated with the second SS set group.
17. A network entity for wireless communication, comprising:
a memory; and
one or more processors coupled to the memory, the one or more processors configured to:
determine, for a user equipment (UE), search space (SS) configuration information that indicates one or more component carrier (CC) groups and an SS set group configuration for each CC group of the one or more CC groups; and
transmit, to the UE, the SS configuration information that enables the UE to perform SS set group switching, on each CC included in a CC group of the one or more CC groups, from a first SS set group associated with the CC group to a second SS set group associated with the CC group, the CC group including a first CC and a second CC different from the first CC.
18. The network entity of claim 17 , wherein the one or more processors are configured to, when determining the SS configuration information:
determine, for the CC group, one or more SS set groups to be associated with the CC group; and
determine, for an SS set group of the one or more SS set groups, one or more SS sets included in the SS set group for each active bandwidth part (BWP) combination of CCs included in the CC group.
19. The network entity of claim 17 , wherein the one or more processors are configured to, when determining the SS configuration information:
determine that CCs of the UE that are associated with a same frequency band or that have a same numerology are to be included in a same CC group.
20. The network entity of claim 17 , wherein the one or more processors are configured to, when determining the SS configuration information:
receive, from the UE, an indication of CCs to be included in the one or more CC groups via a UE capability message or a UE assistance information message; and
determine the one or more CC groups based at least in part on the indication of CCs to be included in the one or more CC groups.
21. The network entity of claim 17 , wherein the one or more processors are configured to, when determining the SS configuration information:
determine, for the CC group, an SS set group configuration that includes the first SS set group and the second SS set group; and
determine, for each active BWP combination of the first CC and the second CC, that the SS set group configuration includes:
a first subgroup of one or more SS sets, associated with the first CC, that are included in the first SS set group,
a second subgroup of one or more SS sets, associated with the second CC, that are included in the first SS set group,
a third subgroup of one or more SS sets, associated with the first CC, that are included in the second SS set group, and
a fourth subgroup of one or more SS sets, associated with the second CC, that are included in the second SS set group.
22. The network entity of claim 17 , wherein the one or more processors are configured to, when determining the SS configuration information:
determine, for an SS set group associated with the CC group, SS sets to be included in the SS set group based at least in part on one or more parameters associated with the SS sets.
23. The network entity of claim 17 , wherein the one or more processors are further configured to:
transmit, to the UE, an indication to switch SS set groups for the CC group from the first SS set group associated with the CC group to the second SS set group associated with the CC group, wherein the indication identifies at least one of:
a CC group index associated with the CC group, or
an SS set group index associated with the second SS set group.
24. A method of wireless communication performed by a network entity, comprising:
determining, for a user equipment (UE), search space (SS) configuration information that indicates one or more component carrier (CC) groups and an SS set group configuration for each CC group of the one or more CC groups; and
transmitting, to the UE, the SS configuration information that enables the UE to perform SS set group switching, on each CC included in a CC group of the one or more CC groups, from a first SS set group associated with the CC group to a second SS set group associated with the CC group, the CC group including a first CC and a second CC different from the first CC.
25. The method of claim 24 , wherein determining the SS configuration information comprises:
determining, for the CC group, one or more SS set groups to be associated with the CC group; and
determining, for an SS set group of the one or more SS set groups, one or more SS sets included in the SS set group for each active bandwidth part (BWP) combination of CCs included in the CC group.
26. The method of claim 24 , wherein determining the SS configuration information comprises:
determining that CCs of the UE that are associated with a same frequency band or that have a same numerology are to be included in a same CC group.
27. The method of claim 24 , wherein determining the SS configuration information comprises:
receiving, from the UE, an indication of CCs to be included in the one or more CC groups via a UE capability message or a UE assistance information message; and
determining the one or more CC groups based at least in part on the indication of CCs to be included in the one or more CC groups.
28. The method of claim 24 , wherein determining the SS configuration information comprises:
determining, for the CC group, an SS set group configuration that includes the first SS set group and the second SS set group; and
determining, for each active BWP combination of the first CC and the second CC, that the SS set group configuration includes:
a first subgroup of one or more SS sets, associated with the first CC, that are included in the first SS set group,
a second subgroup of one or more SS sets, associated with the second CC, that are included in the first SS set group,
a third subgroup of one or more SS sets, associated with the first CC, that are included in the second SS set group, and
a fourth subgroup of one or more SS sets, associated with the second CC, that are included in the second SS set group.
29. The method of claim 24 , wherein determining the SS configuration information comprises:
determining, for an SS set group associated with the CC group, SS sets to be included in the SS set group based at least in part on one or more parameters associated with the SS sets.
30. The method of claim 24 , further comprising:
transmitting, to the UE, an indication to switch SS set groups for the CC group from the first SS set group associated with the CC group to the second SS set group associated with the CC group, wherein the indication identifies at least one of:
a CC group index associated with the CC group, or
an SS set group index associated with the second SS set group.