UE operation with reduced power consumption
Reception or transmission of physical downlink control channels (PDCCH) associated with a master node (MN) or with a secondary node (SN) involve an indication for a first number of cells N cells,MCG cap and for a second number of cells N cells,SCG cap . A first total number of PDCCH candidates is determined on N cells,MCG DL,μ cells of the MN over a time period according to N cells,MCG cap and a second total number of PDCCH candidates is determined on N cells,SCG DL,μ cells of the SN over the time period according to N cells,SCG cap . μ is a subcarrier spacing (SCS) configuration for an active bandwidth part (BWP) on each of the N cells,MCG DL,μ cells or N cells,SCG DL,μ cells.
1. A method, comprising:
receiving:
a configuration for a set of values of a parameter associated with a discontinuous reception (DRX) operation for reception of physical downlink control channels (PDCCHs), and
a configuration for more than one groups of search space sets, wherein a search space set provides parameters for PDCCH receptions;
determining:
a value for the parameter from the set of values for the parameter, and
a group of search space sets from the more than one groups of search space sets; and
receiving PDCCHs according to the value of the parameter and the group of search space sets.
2. The method of claim 1 , further comprising:
receiving a downlink control information (DCI) format in a PDCCH, wherein the DCI format includes a field with a first value; and
determining the value for the parameter and the group of search space sets based on the first value.
3. The method of claim 1 , further comprising:
determining:
absence of reception of a downlink control information (DCI) format, wherein the DCI format includes a field with a value indicating a value for the parameter and a group of search space sets, and
a predetermined value for the parameter, and
a predetermined of search space sets.
4. The method of claim 1 , wherein the parameter is a drx-onDurationTimer that determines a maximum time for PDCCH receptions during a DRX cycle.
5. The method of claim 1 , wherein the parameter is a drx-InactivityTimer that determines a time for PDCCH receptions after a last PDCCH reception.
6. The method of claim 1 , further comprising:
transmitting a value for the parameter.
7. The method of claim 1 , further comprising:
transmitting an indication for the group of search space sets.
8. A user equipment (UE), comprising:
a transceiver configured to receive:
a configuration for a set of values of a parameter associated with a discontinuous reception (DRX) operation for reception of physical downlink control channels (PDCCHs), and
a configuration for more than one groups of search space sets, wherein a search space set provides parameters for PDCCH receptions; and
a processor, operably connected to the transceiver, the processor configured to determine:
a value for the parameter from the set of values for the parameter, and
a group of search space sets from the more than one groups of search space sets,
wherein the transceiver is further configured to receive PDCCHs according to the value of the parameter and the group of search space sets.
9. The UE of claim 8 , wherein:
the transceiver is further configured to receive a downlink control information (DCI) format in a PDCCH, wherein the DCI format includes a field with a first value, and
the processor is further configured to determine the value for the parameter and the group of search space sets based on the first value.
10. The UE of claim 8 , wherein the processor is further configured to determine:
absence of reception of a downlink control information (DCI) format, wherein the DCI format includes a field with a value indicating a value for the parameter and a group of search space sets, and
a predetermined value for the parameter, and
a predetermined of search space sets.
11. The UE of claim 8 , wherein the parameter is a drx-onDurationTimer that determines a maximum time for PDCCH receptions during a DRX cycle.
12. The UE of claim 8 , wherein the parameter is a drx-InactivityTimer that determines a time for PDCCH receptions after a last PDCCH reception.
13. The UE of claim 8 , wherein the transceiver is further configured to transmit a value for the parameter.
14. The UE of claim 8 , wherein the transceiver is further configured to transmit an indication for the group of search space sets.
15. A base station, comprising:
a transceiver configured to transmit:
a configuration for a set of values of a parameter associated with a discontinuous reception (DRX) operation for transmission of physical downlink control channels (PDCCHs), and
a configuration for more than one groups of search space sets, wherein a search space set provides parameters for PDCCH transmissions; and
a processor, operably connected to the transceiver, the processor configured to determine:
a value for the parameter from the set of values for the parameter, and
a group of search space sets from the more than one groups of search space sets,
wherein the transceiver is further configured to transmit PDCCHs according to the value of the parameter and the group of search space sets.
16. The base station of claim 15 , wherein:
the transceiver is further configured to transmit a downlink control information (DCI) format in a PDCCH, wherein the DCI format includes a field with a first value, and
the processor is further configured to determine the value for the parameter and the group of search space sets based on the first value.
17. The base station of claim 15 , wherein the parameter is a drx-onDurationTimer that determines a maximum time for PDCCH transmissions during a DRX cycle.
18. The base station of claim 15 , wherein the parameter is a drx-InactivityTimer that determines a time for PDCCH transmissions after a last PDCCH transmission.
19. The base station of claim 15 , wherein the transceiver is further configured to receive a value for the parameter.
20. The base station of claim 15 , wherein the transceiver is further configured to receive an indication for the group of search space sets.