Multi-slot PDCCH monitoring in configured search-space sets
A user equipment (UE) configured for multi-slot physical downlink control channel (PDCCH) monitoring may decode higher-layer signalling comprising configuration information received from a gNodeB (gNB) that configure the UE with search space (SS) sets for multi-slot PDCCH monitoring. At least some slots of the SS sets may be indicated to have a PDCCH monitoring occasion (MO). A SS set may be configured in a number (Y) of consecutive non-overlapping slots (MO slots) within slot groups of a number (X) of consecutive non-overlapping slots. The number (X) of consecutive slots of the slot group may be at least twice the number (Y) of consecutive MO slots within each SS set. The number (X) of consecutive slots of the slot group and the number (Y) of consecutive MO slots within each SS set that comprise the PDCCH MO may also be based on a subcarrier spacing (SCS).
1 . An apparatus for a user equipment (UE) configured for operation in fifth-generation new radio (5G NR) network, the apparatus comprising: processing circuitry; and memory, the processing circuitry configured to:
decode higher-layer signalling for multi-slot physical downlink control channel (PDCCH) monitoring received from a gNodeB (gNB), the higher-layer signalling comprising configuration information to configure the UE with a Type1-PDCCH Common Search Space (CSS) (Type1-PDCCH CSS) set providing a PDCCH monitoring pattern that indicates monitoring occasions (MO) with a number of (Y) consecutive slots with a slot group of (X) slots of a search space set,
wherein the number of (Y) consecutive slots is not larger than a number of consecutive slots indicated as a capability by the UE for monitoring; and
perform the multi-slot PDCCH monitoring by monitoring the monitoring occasions for PDCCH candidates within the (Y) consecutive slots of the slot group,
wherein for a subcarrier spacing (SCS) configuration of 480 KHz, the number of slots (X) of the slot group is four and the number of consecutive slots that include the monitoring occasions is either two or one, and
wherein for a SCS configuration of 960 KHz, the number of slots (X) of the slot group is eight and the number of consecutive slots that include the monitoring occasions is either four or one.
2 . The apparatus of claim 1 , wherein the capability indicated by the UE is expressed as a combination (X, Y) of the number of slots (X) in the slot group and a number of consecutive slots (Y) for monitoring.
3 . The apparatus of claim 1 , wherein the processing circuitry is to configure the UE to refrain from performing the multi-slot PDCCH monitoring for SCS configurations other than the SCS configuration of 480 kHz and 960 kHz.
4 . The apparatus of claim 1 , wherein the processing circuitry is configured to determine a location of the (Y) consecutive slots for monitoring within the slot group from the configured Type1-PDCCH CSS set,
wherein the location of the (Y) consecutive slots for monitoring within the slot group is maintained across a plurality of slot groups, and
wherein a beginning of a first slot of the slot group is aligned with a subframe boundary.
5 . The apparatus of claim 1 , wherein the configuration information to configure the UE with the Type1-PDCCH CSS set indicates a downlink control information (DCI) format,
wherein the processing circuitry is to:
perform the multi-slot PDCCH monitoring by monitoring PDCCH candidates for detection of the DCI format; and
decode the DCI format, the DCI format scheduling one or multiple physical downlink shared channels (PDSCHs).
6 . The apparatus of claim 2 , wherein for the multi-slot PDCCH monitoring, the processing circuitry is to configure the UE to monitor for PDCCH candidates only within the consecutive slots of the number (Y) of consecutive slots of the slot group.
7 . The apparatus of claim 6 , wherein for the multi-slot PDCCH monitoring, the processing circuitry is to configure the UE to refrain from monitoring slots for PDCCH candidates that are not within the consecutive slots of the group of (Y) consecutive slots the slot group.
8 . The apparatus of claim 7 , wherein the number of slots (X) of the slot group and the number of consecutive slots that include the monitoring occasions is based on a subcarrier spacing (SCS) configuration.
9 . An apparatus for a user equipment (UE) configured for operation in fifth-generation new radio (5G NR) network, the apparatus comprising: processing circuitry; and memory, the processing circuitry configured to:
decode higher-layer signalling for multi-slot physical downlink control channel (PDCCH) monitoring received from a gNodeB (gNB), the higher-layer signalling comprising configuration information to configure the UE with a Type1-PDCCH Common Search Space (CSS) (Type1-PDCCH CSS) set providing a PDCCH monitoring pattern that indicates monitoring occasions (MO) with a number of (Y) consecutive slots with a slot group of (X) slots of a search space set,
wherein the number of (Y) consecutive slots is not larger than a number of consecutive slots indicated as a capability by the UE for monitoring; and
perform the multi-slot PDCCH monitoring by monitoring the monitoring occasions for PDCCH candidates within the (Y) consecutive slots of the slot group,
wherein the capability indicated by the UE is expressed as a combination (X, Y) of the number of slots (X) in the slot group and a number of consecutive slots (Y) for monitoring,
wherein for the multi-slot PDCCH monitoring, the processing circuitry is to configure the UE to monitor for PDCCH candidates only within the consecutive slots of the number (Y) of consecutive slots of the slot group,
wherein for the multi-slot PDCCH monitoring, the processing circuitry is to configure the UE to refrain from monitoring slots for PDCCH candidates that are not within the consecutive slots of the group of (Y) consecutive slots the slot group,
wherein the number of slots (X) of the slot group and the number of consecutive slots that include the monitoring occasions is based on a subcarrier spacing (SCS) configuration, and
wherein the number of slots (X) of the slot group is at least twice the number of consecutive slots that include the monitoring occasions for SCS configurations of 480 kHz and 960 kHz.
10 . A non-transitory computer-readable storage medium that stores instructions for execution by processing circuitry for a user equipment (UE), the instructions to configure the processing circuitry to:
decode higher-layer signalling for multi-slot physical downlink control channel (PDCCH) monitoring received from a gNodeB (gNB), the higher-layer signalling comprising configuration information to configure the UE with a Type1-PDCCH Common Search Space (CSS) (Type1-PDCCH CSS) set providing a PDCCH monitoring pattern that indicates monitoring occasions (MO) with a number of (Y) consecutive slots with a slot group of (X) slots of a search space set,
wherein the number of (Y) consecutive slots is not larger than a number of consecutive slots indicated as a capability by the UE for monitoring; and
perform the multi-slot PDCCH monitoring by monitoring the monitoring occasions for PDCCH candidates within the (Y) consecutive slots of the slot group,
wherein the number of slots (X) of the slot group and the number of consecutive slots that include the monitoring occasions is based on a subcarrier spacing (SCS) configuration,
wherein for an SCS configuration of 480 KHz, the number of slots (X) of the slot group is four and the number of consecutive slots that include the monitoring occasions is either two or one, and
wherein for an SCS configuration of 960 KHz, the number of slots (X) of the slot group is eight and the number of consecutive slots that include the monitoring occasions is either four or one.
11 . The non-transitory computer-readable storage medium of claim 10 , wherein the capability indicated by the UE is expressed as a combination (X, Y) of the number of slots (X) in the slot group and a number of consecutive slots (Y) for monitoring.
12 . The non-transitory computer-readable storage medium of claim 10 , wherein the number of slots (X) of the slot group is at least twice the number of consecutive slots that include the monitoring occasions for SCS configurations of 480 kHz and 960 kHz.
13 . The non-transitory computer-readable storage medium of claim 10 , wherein the processing circuitry is to configure the UE to refrain from performing the multi-slot PDCCH monitoring for SCS configurations other than the SCS configuration of 480 kHz and 960 kHz.
14 . The non-transitory computer-readable storage medium of claim 11 , wherein for the multi-slot PDCCH monitoring, the processing circuitry is to configure the UE to monitor for PDCCH candidates only within the consecutive slots of the number (Y) of consecutive slots of the slot group.
15 . The non-transitory computer-readable storage medium of claim 14 , wherein for the multi-slot PDCCH monitoring, the processing circuitry is to configure the UE to refrain from monitoring slots for PDCCH candidates that are not with in the consecutive slots of the group of (Y) consecutive slots the slot group.
16 . An apparatus for a gNodeB (gNB), the apparatus comprising: processing circuitry; and memory, the processing circuitry is configured to:
encode higher-layer signalling to configure a user equipment (UE) for multi-slot physical downlink control channel (PDCCH) monitoring, the higher-layer signalling comprising configuration information to configure the UE with a Type1-PDCCH Common Search Space (CSS) (Type1-PDCCH CSS) set providing a PDCCH monitoring pattern that indicates monitoring occasions (MO) with a number of (Y) consecutive slots with a slot group of (X) slots of a search space set,
wherein the number of (Y) consecutive slots is not larger than a number of consecutive slots indicated as a capability by the UE for monitoring; and
wherein the higher-layer signalling configures the UE to perform the multi-slot PDCCH monitoring in the monitoring occasions for PDCCH candidates within the (Y) consecutive slots of the slot group,
wherein for a subcarrier spacing (SCS) configuration of 480 KHz, the number of slots (X) of the slot group is four and the number of consecutive slots that include the monitoring occasions is either two or one, and
wherein for the SCS configuration of 960 KHz, the number of slots (X) of the slot group is eight and the number of consecutive slots that include the monitoring occasions is either four or one.
17 . The apparatus of claim 16 , wherein the capability indicated by the UE is expressed as a combination (X, Y) of the number of slots (X) in the slot group and a number of consecutive slots (Y) for monitoring, and
wherein for the multi-slot PDCCH monitoring, the higher-layer signalling is to configure the UE to monitor for PDCCH candidates only within the consecutive slots of the number (Y) of consecutive slots of the slot group.