Maximum PDCCH processing capability allocation method, terminal device, and network device
A maximum PDCCH processing capability allocation method includes: obtaining cell configuration information, where the cell configuration information indicates a plurality of configured cells and scheduling information of the plurality of configured cells, the plurality of configured cells include a plurality of cells configured for the terminal device for carrier aggregation, the scheduling information indicates that one first cell is scheduled by a plurality of first target cells, or the scheduling information indicates that one second cell schedules a plurality of second target cells at a time, and the first cell, the second cell, the first target cell, and the second target cell are cells in the plurality of configured cells; determining a total quantity of cells according to the cell configuration information; and allocating a maximum PDCCH processing capability of the terminal device based on the total quantity of cells and a maximum blind detection capability of the terminal device.
1. A maximum Physical Downlink Control CHannel (PDCCH) processing capability allocation method, performed by a terminal device, wherein the method comprises:
obtaining cell configuration information, wherein the cell configuration information indicates a plurality of configured cells and scheduling information of the plurality of configured cells, the plurality of configured cells comprise a plurality of cells configured for the terminal device for carrier aggregation, the scheduling information indicates that a first cell is scheduled by a plurality of first target cells, and the first cell and the plurality of first target cells are cells in the plurality of configured cells, wherein the first cell is a primary cell;
determining a total quantity of cells according to the cell configuration information; and
allocating a maximum PDCCH processing capability of the terminal device based on the total quantity of cells and a maximum blind detection capability of the terminal device,
wherein determining the total quantity of cells according to the cell configuration information comprises:
determining scheduled cells according to the scheduling information of the plurality of configured cells;
grouping the scheduled cells according to SubCarrier Spacings (SCSs) of scheduling cells of the scheduled cells, and determining a quantity of cells comprised in each SCS group, wherein in a grouping process, when the first cell in the plurality of configured cells is scheduled by the plurality of first target cells, the first cell serves as a scheduled cell of one of the plurality of first target cells, the plurality of first target cells comprise the first cell and another cell for scheduling the first cell, and the another cell does not comprise the first cell; and
determining the total quantity of cells according to the quantity of cells comprised in each SCS group.
2. The method according to claim 1 , wherein determining the total quantity of cells according to the cell configuration information comprises:
determining the scheduled cells according to the scheduling information of the plurality of configured cells, wherein when the first cell in the plurality of configured cells is scheduled by m first target cells, the first cell corresponds to m scheduled cells, the plurality of first target cells comprise the first cell or another cell for scheduling the first cell, and the another cell does not comprise the first cell;
grouping the scheduled cells according to the SCSs of scheduling cells of the scheduled cells, and determining the quantity of cells comprised in each SCS group; and
determining the total quantity of cells according to the quantity of cells comprised in each SCS group.
3. The method according to claim 1 , wherein determining the total quantity of cells according to the cell configuration information comprises:
determining the scheduled cells according to the scheduling information of the plurality of configured cells, wherein when the first cell in the plurality of configured cells is scheduled by P first target cells, scheduled cells corresponding to the first cell comprise P virtual cells, a quantity of scheduled cells corresponding to an i th virtual cell is Q i , Q j is a scaling factor for scheduling an i th first target cell, the plurality of first target cells comprise the first cell and another cell for scheduling the first cell, and the another cell does not comprise the first cell;
grouping the scheduled cells according to the SCSs of scheduling cells of the scheduled cells, and determining the quantity of cells comprised in each SCS group; and
determining the total quantity of cells according to the quantity of cells comprised in each SCS group.
4. The method according to claim 1 , wherein
when the quantity of cells comprised in each SCS group is being determined, a quantity of cells for an i th first cell serving as a self-scheduling cell is denoted as (1+F i ), wherein F i is a weighting factor of the first cell serving as the self-scheduling cell, i=1, 2 . . . , n, and n indicates a quantity of first cells serving as self-scheduling cells; or
when the quantity of cells comprised in each SCS group is being determined, a quantity of cells for an j th first cell serving as a scheduled cell of the another cell is denoted as (1+G j ), wherein G j is a weighting factor of the first cell serving as the scheduled cell of the another cell, j=1, 2, . . . , m, and m is a quantity of first cells serving as the scheduled cell of the another cell.
5. The method according to claim 4 , wherein each of F i or G j is a rational number greater than 0 and less than 1.
6. The method according to claim 4 , wherein F i or G j is predefined, configured by a network, or determined according to capability-related information of the terminal device.
7. The method according to claim 6 , wherein when F i or G j is determined according to the capability-related information of the terminal device, the method further comprises:
reporting, by the terminal device, the capability-related information.
8. The method according to claim 4 , wherein
a maximum PDCCH processing capability allocated to the i th first cell serving as the self-scheduling cell does not exceed a first target maximum PDCCH processing capability, and the first target maximum PDCCH processing capability is determined according to F i ; and
a maximum PDCCH processing capability allocated to the j th first cell serving as the scheduled cell of the another cell does not exceed a second target maximum PDCCH processing capability, and the second target maximum PDCCH processing capability is determined according to G j .
9. The method according to claim 1 , wherein the scheduling information indicates that a second cell schedules a plurality of second target cells at a time, wherein determining the total quantity of cells according to the cell configuration information comprises:
determining the scheduled cells according to the scheduling information of the plurality of configurations cells, wherein when the second cell in the plurality of configured cells schedules the plurality of second target cells at the time, the plurality of second target cells serve as one scheduled cell;
grouping the scheduled cells according to the SCSs of scheduling cells of the scheduled cells, and determining the quantity of cells comprised in each SCS group; and
determining the total quantity of cells according to the quantity of cells comprised in each SCS group.
10. The method according to claim 9 , wherein the second cell simultaneously schedules the plurality of second target cells by using a predetermined Downlink Control Information (DCI) format.
11. The method according to claim 1 , wherein the allocating a maximum PDCCH processing capability of the terminal device based on the total quantity of cells and a maximum blind detection capability of the terminal device comprises:
when the total quantity of cells is greater than the maximum blind detection capability, allocating the maximum PDCCH processing capability of the terminal device among the SCS groups according to a ratio of the quantity of cells comprised in each SCS group to the total quantity of cells.
12. A Physical Downlink Control CHannel (PDCCH) transmission method, performed by a network device, wherein the method comprises:
sending cell configuration information to a terminal device, wherein the cell configuration information indicates a plurality of configured cells and scheduling information of the plurality of configured cells, the plurality of configured cells comprise a plurality of cells configured for the terminal device for carrier aggregation, the scheduling information indicates that a first cell is scheduled by a plurality of first target cells, and the first cell and the plurality of first target cells are cells in the plurality of configured cells, wherein the first cell is a primary cell, wherein a total quantity of cells is determined according to the cell configuration information;
determining allocation of a maximum PDCCH processing capability of the terminal device according to the total quantity of cells and a maximum blind detection capability of the terminal device; and
scheduling a PDCCH of the terminal device based on the allocation of the maximum PDCCH processing capability of the terminal device,
wherein the total quantity of cells is determined according to the cell configuration information at least by:
determining scheduled cells according to the scheduling information of the plurality of configured cells;
grouping the scheduled cells according to SubCarrier Spacings (SCSs) of scheduling cells of the scheduled cells, and determining a quantity of cells comprised in each SCS group, wherein in a grouping process, when the first cell in the plurality of configured cells is scheduled by the plurality of first target cells, the first cell serves as a scheduled cell of one of the plurality of first target cells, the plurality of first target cells comprise the first cell and another cell for scheduling the first cell, and the another cell does not comprise the first cell; and
determining the total quantity of cells according to the quantity of cells comprised in each SCS group.
13. The method according to claim 12 , wherein the method further comprises: sending configuration information to the terminal device, wherein the configuration information is used to configure at least one of the following:
a scaling factor of each virtual cell corresponding to the first cell scheduled by the plurality of first target cells;
a weighting factor of the first cell, serving as a self-scheduling cell, scheduled by the plurality of first target cells; or
a weighting factor of the first cell, serving as a scheduled cell of another cell, scheduled by the plurality of first target cells.
14. The method according to claim 13 , wherein before the sending configuration information to the terminal device, the method further comprises:
receiving reported capability-related information of the terminal device.
15. A network device, comprising a memory, a processor, and a computer program that is stored in the memory and that can be run on the processor, wherein when the computer program is executed by the processor, the method according to claim 12 is implemented.
16. A terminal device, comprising:
a memory for storing computer-readable instructions;
a processor coupled to the memory and configured to execute the computer-readable instructions, wherein the computer-readable instructions, when executed by the processor, cause the processor to perform operations comprising:
obtaining cell configuration information, wherein the cell configuration information indicates a plurality of configured cells and scheduling information of the plurality of configured cells, the plurality of configured cells comprise a plurality of cells configured for the terminal device for carrier aggregation, the scheduling information indicates that a first cell is scheduled by a plurality of first target cells, and the first cell and the plurality of first target cells are cells in the plurality of configured cells, wherein the first cell is a primary cell;
determining a total quantity of cells according to the cell configuration information; and
allocating a maximum PDCCH processing capability of the terminal device based on the total quantity of cells and a maximum blind detection capability of the terminal device,
wherein determining the total quantity of cells according to the cell configuration information comprises:
determining scheduled cells according to the scheduling information of the plurality of configured cells;
grouping the scheduled cells according to SubCarrier Spacings (SCSs) of scheduling cells of the scheduled cells, and determining a quantity of cells comprised in each SCS group, wherein in a grouping process, when the first cell in the plurality of configured cells is scheduled by the plurality of first target cells, the first cell serves as a scheduled cell of one of the plurality of first target cells, the plurality of first target cells comprise the first cell and another cell for scheduling the first cell, and the another cell does not comprise the first cell; and
determining the total quantity of cells according to the quantity of cells comprised in each SCS group.
17. The terminal device according to claim 16 , wherein
when the quantity of cells comprised in each SCS group is being determined, a quantity of cells for an i th first cell serving as a self-scheduling cell is denoted as (1+F i ), wherein F i is a weighting factor of the first cell serving as the self-scheduling cell, i=1, 2, . . . , n, and n indicates a quantity of first cells serving as self-scheduling cells; or
when the quantity of cells comprised in each SCS group is being determined, a quantity of cells for an j th first cell serving as a scheduled cell of the another cell is denoted as (1+G j ), wherein G j is a weighting factor of the first cell serving as the scheduled cell of the another cell, j=1, 2, . . . , m, and m is a quantity of first cells serving as the scheduled cell of the another cell.
18. The terminal device according to claim 17 , wherein each of F i or G j is a rational number greater than 0 and less than 1.
19. The terminal device according to claim 17 , wherein F i or G j is predefined, configured by a network, or determined according to capability-related information of the terminal device.
20. The terminal device according to claim 17 , wherein:
a maximum PDCCH processing capability allocated to the i th first cell serving as the self-scheduling cell does not exceed a first target maximum PDCCH processing capability, and the first target maximum PDCCH processing capability is determined according to F i ; and
a maximum PDCCH processing capability allocated to the j th first cell serving as the scheduled cell of the another cell does not exceed a second target maximum PDCCH processing capability, and the second target maximum PDCCH processing capability is determined according to G j .