Multi-slot PDCCH monitoring in search space sets for higher carrier frequency operation
A user equipment (UE) configured for operation in a fifth-generation new radio (NR) system may decode higher-layer signalling comprising configuration information received from a gNodeB (gNB) that configures the UE with search space (SS) sets for multi-slot physical downlink control channel (PDCCH) monitoring. At least some slots of the SS sets may be indicated to have a PDCCH monitoring occasion (MO) and each SS set may be configured in a number (Y) of consecutive slots (MO slots) within slot groups of a slot group size that comprises of a number (X) of consecutive slots. The UE may perform multi-slot PDCCH monitoring by monitoring the MO slots for PDCCH candidates and non-overlapping control channel elements (CCEs). Slot groups may have X consecutive slots (slot group size=X) and there are Y consecutive MO slots within each slot group.
1 . A user equipment (UE) configured for operation in a fifth-generation new radio (NR) system, the UE comprising: processing circuitry; and memory, the processing circuitry configured to:
decode higher-layer signalling comprising configuration information received from a gNodeB (gNB), the configuration information to configure the UE with UE-specific search space (USS) sets for multi-slot physical downlink control channel (PDCCH) monitoring,
wherein for the USS sets, the configuration information indicates a PDCCH monitoring pattern that indicates a number of slots in a group of consecutive slots,
perform multi-slot PDCCH monitoring by monitoring a maximum number of non-overlapped control-channel elements (CCEs) for corresponding PDCCH candidates in each group of consecutive slots,
wherein for a serving cell with a subcarrier spacing (SCS) configuration of one of 480 kHz and 960 kHz, the number of slots within each group of consecutive slots that the UE is to monitor for PDCCH candidates is no more than half the number of slots in each group of slots.
2 . The UE of claim 1 , wherein for a serving cell with the SCS configuration of 480 kHz, the maximum number of PDCCH candidates is twenty for groups of four consecutive slots.
3 . The UE of claim 2 , wherein for a serving cell with the SCS configuration of 960 KHz, the maximum number of PDCCH candidates is ten for groups of four consecutive slots and the maximum number of PDCCH candidates is twenty for groups of eight consecutive slots.
4 . The UE of claim 3 , wherein for a serving cell with the SCS configuration of 480 kHz, the maximum number of non-overlapped CCEs is thirty-two for the groups of four consecutive slots.
5 . The UE of claim 4 , wherein for a serving cell with the SCS configuration of 960 KHz, the maximum number of non-overlapped CCEs is sixteen for groups of four consecutive slots and the maximum number of non-overlapped CCEs is thirty-two for the groups of eight consecutive slots.
6 . The UE of claim 5 , wherein a PDCCH monitoring capability of the UE is indicated as combinations of the number of slots in a group consecutive slots.
7 . The UE of claim 6 , wherein the processing circuitry configures the UE to perform the multi-slot PDCCH monitoring by monitoring the maximum number of non-overlapped CCEs for corresponding PDCCH candidates at monitoring occasions in each group of consecutive slots.
8 . The UE of claim 6 , wherein the processing circuitry is configured to refrain from monitoring more than the maximum number of non-overlapped CCEs for corresponding PDCCH candidates in each group of consecutive slots.
9 . The UE of claim 6 , wherein the processing circuitry is configured to drop one or more of the USS sets that have more than the maximum number of non-overlapped CCEs configured for monitoring corresponding PDCCH candidates in each group of consecutive slots.
10 . The UE of claim 6 , wherein the processing circuitry is to configure the UE to perform the multi-slot PDCCH monitoring by monitoring the non-overlapped CCEs on an active downlink bandwidth part (DL-BWP) of the serving cell for the corresponding PDCCH candidates in each group of consecutive slots,
wherein the active DL-BWP uses a carrier frequency above 52.6 GHz for the SCS configurations of 480 kHz and 960 kHz.
11 . A non-transitory computer-readable storage medium that stores instructions for execution by processing circuitry a user equipment (UE) configured for operation in a fifth-generation new radio (NR) system, the processing circuitry configured to:
decode higher-layer signalling comprising configuration information received from a gNodeB (gNB), the configuration information to configure the UE with UE-specific search space (USS) sets for multi-slot physical downlink control channel (PDCCH) monitoring,
wherein for the USS sets, the configuration information indicates a PDCCH monitoring pattern that indicates a number of slots in a group of consecutive slots,
perform multi-slot PDCCH monitoring by monitoring a maximum number of non-overlapped control-channel elements (CCEs) for corresponding PDCCH candidates in each group of consecutive slots,
wherein for a serving cell with a subcarrier spacing (SCS) configuration of one of 480 kHz and 960 kHz, the number of slots within each group of consecutive slots that the UE is to monitor for PDCCH candidates is no more than half the number of slots in each group of slots.
12 . The Non-transitory computer-readable storage medium of claim 11 , wherein for a serving cell with the SCS configuration of 480 kHz, the maximum number of PDCCH candidates is twenty for groups of four consecutive slots.
13 . The Non-transitory computer-readable storage medium of claim 12 , wherein for a serving cell with the SCS configuration of 960 KHz, the maximum number of PDCCH candidates is ten for groups of four consecutive slots and the maximum number of PDCCH candidates is twenty for groups of eight consecutive slots.
14 . The Non-transitory computer-readable storage medium of claim 13 , wherein for a serving cell with the SCS configuration of 480 kHz, the maximum number of non-overlapped CCEs is thirty-two for the groups of four consecutive slots.
15 . The Non-transitory computer-readable storage medium of claim 14 , wherein for a serving cell with the SCS configuration of 960 KHz, the maximum number of non-overlapped CCEs is sixteen for groups of four consecutive slots and the maximum number of non-overlapped CCEs is thirty-two for the groups of eight consecutive slots.
16 . The Non-transitory computer-readable storage medium of claim 15 , wherein a PDCCH monitoring capability of the UE is indicated as combinations of the number of slots in a group consecutive slots.
17 . The Non-transitory computer-readable storage medium of claim 16 , wherein the processing circuitry configures the UE to perform the multi-slot PDCCH monitoring by monitoring the maximum number of non-overlapped CCEs for corresponding PDCCH candidates at monitoring occasions in each group of consecutive slots.
18 . An apparatus of a gNode B (gNB) configured for operation in a fifth-generation new radio (NR) system, the apparatus comprising: processing circuitry and memory, the processing circuitry configured to:
encode higher-layer signalling comprising configuration information to configure a user equipment (UE) with UE-specific search space (USS) sets for multi-slot physical downlink control channel (PDCCH) monitoring,
wherein for the USS sets, the configuration information indicates a PDCCH monitoring pattern that indicates a number of slots in a group of consecutive slots, the configuration information to configure the UE to perform multi-slot PDCCH monitoring by monitoring a maximum number of non-overlapped control-channel elements (CCEs) for corresponding PDCCH candidates in each group of consecutive slots,
wherein for a serving cell with a subcarrier spacing (SCS) configuration of one of 480 kHz and 960 kHz, the number of slots within each group of consecutive slots that the UE is to monitor for PDCCH candidates is no more than half the number of slots in each group of slots.
19 . The apparatus of claim 18 , wherein for a serving cell with the SCS configuration of 480 kHz, the maximum number of PDCCH candidates is twenty for groups of four consecutive slots, and
wherein for a serving cell with the SCS configuration of 960 KHz, the maximum number of PDCCH candidates is ten for groups of four consecutive slots and the maximum number of PDCCH candidates is twenty for groups of eight consecutive slots.
20 . The apparatus of claim 19 , wherein for a serving cell with the SCS configuration of 480 kHz, the maximum number of non-overlapped CCEs is thirty-two for the groups of four consecutive slots, and
wherein for a serving cell with the SCS configuration of 960 KHz, the maximum number of non-overlapped CCEs is sixteen for groups of four consecutive slots and the maximum number of non-overlapped CCEs is thirty-two for the groups of eight consecutive slots.