Support of flexible PDCCH monitoring in new radio (NR)
Technology for a user equipment (UE), operable for monitoring a physical downlink control channel (PDCCH) is disclosed. The UE can monitor a downlink (DL) control channel for DL control information (DCI) at a predetermined monitoring occasion, wherein the predetermined monitoring occasion has a periodicity of P slots or P symbols with an offset O s . The UE can monitor a downlink (DL) control channel for DL control information (DCI) at a predetermined monitoring occasion, wherein O s has an offset with respect to a first slot in subframe number zero (SFN #0). The UE can monitor a downlink (DL) control channel for DL control information (DCI) at a predetermined monitoring occasion, wherein P is a positive integer greater than zero.
1. A method of a user equipment (UE), comprising:
receiving, from a base station:
a number of control resource sets (CORESETs) that may be used for each monitoring occasion of a set of one or a plurality of search spaces (SS),
a number of SS in each CORESET,
an aggregation level for each SS, and
a number of physical downlink control channel (PDCCH) candidates, M (L) , for each SS; and
performing PDCCH monitoring based on the number of CORESETs, the number of SS in each CORESET, the aggregation level for each SS, and the M (L) .
2. The method of claim 1 , wherein the number of CORESETs, the number of SS in each CORESET, the aggregation level for each SS, and the M (L) are received in a higher layer signal.
3. The method of claim 2 , wherein the higher layer signal is received via a new radio (NR) minimum system information (MSI), a NR remaining MSI (RMSI), or a NR system information block (SIB).
4. The method of claim 1 , wherein the M (L) is a number of candidates configured by higher layer signaling.
5. The method of claim 4 , wherein the higher layer signaling comprises a radio resource control (RRC) signal.
6. The method of claim 1 , further comprising receiving, from the base station, a bitmap that indicates the number of SS in each CORESET.
7. An apparatus of a user equipment (UE), comprising:
one or more processors; and
a memory storing instructions that, when executed by the one or more processors, configure the UE to:
receive, from a base station:
a number of control resource sets (CORESETs) that may be used for each monitoring occasion of a set of one or a plurality of search spaces (SS),
a number of SS in each CORESET,
an aggregation level for each SS, and
a number of physical downlink control channel (PDCCH) candidates, M (L) , for each SS; and
perform PDCCH monitoring based on the number of CORESETs, the number of SS in each CORESET, the aggregation level for each SS, and the M (L) .
8. The apparatus of claim 7 , wherein the number of CORESETs, the number of SS in each CORESET, the aggregation level for each SS, and the M (L) are received in a higher layer signal.
9. The apparatus of claim 8 , wherein the higher layer signal is received via a new radio (NR) minimum system information (MSI), a NR remaining MSI (RMSI), or a NR system information block (SIB).
10. The apparatus of claim 7 , wherein the M (L) is a number of candidates configured by higher layer signaling.
11. The apparatus of claim 10 , wherein the higher layer signaling comprises a radio resource control (RRC) signal.
12. The apparatus of claim 7 , wherein the instructions, when executed by the one or more processors, further configure the UE to receive, from the base station, a bitmap that indicates the number of SS in each CORESET.
13. A non-transitory computer-readable storage medium comprising instructions that, when executed by one or more processors of a user equipment (UE), cause the UE to:
receive, from a base station:
a number of control resource sets (CORESETs) that may be used for each monitoring occasion of a set of one or a plurality of search spaces (SS),
a number of SS in each CORESET,
an aggregation level for each SS, and
a number of physical downlink control channel (PDCCH) candidates, M (L) , for each SS; and
perform PDCCH monitoring based on the number of CORESETs, the number of SS in each CORESET, the aggregation level for each SS, and the M (L) .
14. The non-transitory computer-readable storage medium of claim 13 , wherein the number of CORESETs, the number of SS in each CORESET, the aggregation level for each SS, and the M (L) are received in a higher layer signal.
15. The non-transitory computer-readable storage medium of claim 14 , wherein the higher layer signal is received via a new radio (NR) minimum system information (MSI), a NR remaining MSI (RMSI), or a NR system information block (SIB).
16. The non-transitory computer-readable storage medium of claim 13 , wherein the M (L) is a number of candidates configured by higher layer signaling.
17. The non-transitory computer-readable storage medium of claim 16 , wherein the higher layer signaling comprises a radio resource control (RRC) signal.
18. The non-transitory computer-readable storage medium of claim 13 , wherein the instructions, when executed by the one or more processors, further cause the UE to receive, from the base station, a bitmap that indicates the number of SS in each CORESET.