Granted Patent B2

US 12,323,970 · App. 17/850,211 · Granted Jun 3, 2025

Inventor: Huan Zhou (Beijing, CN)

Assignee: BEIJING UNISOC COMMUNICATIONS TECHNOLOGY CO., LTD.

H04W72/1263H04W24/08H04W72/0453H04W72/23

Abstract

Claims (38)

1. A method for cross-carrier scheduling, applied to a network-side device and comprising:

transmitting higher-layer signaling, wherein the higher-layer signaling carries scheduling configuration information indicating that a primary cell (PCell) can be cross-carrier scheduled by one or more secondary cells (SCells) and higher-layer parameter configuration indicating one or more searching spaces to-be-monitored in the one or more SCells,

wherein the method further comprises:

configuring a searching space set for a bandwidth part (BWP) of the PCell, wherein the searching space set comprises one or more candidate searching spaces used by the one or more SCells to perform cross-carrier scheduling on the PCell;

assigning the one or more candidate searching spaces as the one or more searching spaces to-be-monitored and adding the one or more candidate searching spaces into a searching space list; and

determining the higher-layer parameter configuration according to the searching space list.

2. The method of claim 1 , wherein

the higher-layer signaling further carries cross-carrier scheduling information; and

the cross-carrier scheduling information comprises cross-carrier scheduling information corresponding to a SCell on condition that the PCell is scheduled by the SCell; or

the cross-carrier scheduling information comprises cross-carrier scheduling information corresponding to each of multiple SCells on condition that the PCell is scheduled by the multiple SCells.

3. The method of claim 2 , wherein the cross-carrier scheduling information corresponding to the SCell or the cross-carrier scheduling information corresponding to each of the multiple SCells contains a carrier indicator field (CIF) value and a cell identifier (ID) of the corresponding SCell.

4. The method of claim 1 , wherein the searching space set further comprises a searching space for self-scheduling, and an index of the searching space for self-scheduling has no intersection with an index of the candidate searching space.

5. The method of claim 4 , wherein the one or more candidate searching spaces further can be self-scheduled.

6. A method for cross-carrier scheduling, applied to a user equipment (UE) and comprising:

receiving higher-layer signaling, wherein the higher-layer signaling carries scheduling configuration information indicating that a primary cell (PCell) can be cross-carrier scheduled by one or more secondary cells (SCells) and higher-layer parameter configuration indicating one or more searching spaces to-be-monitored in the one or more SCells,

wherein the method further comprises:

determining the one or more searching spaces to-be-monitored indicated by the higher-layer parameter configuration;

determining a target searching space of the one or more SCells in the one or more searching spaces to-be-monitored, wherein the target searching space is a searching space within a current active bandwidth part (BWP) of the one or more SCells; and

monitoring a physical downlink control channel (PDCCH) of the one or more SCells in the target searching space of the one or more SCells, and monitoring a PDCCH of the PCell.

7. The method of claim 6 , wherein

the higher-layer signaling further carries cross-carrier scheduling information; and

the cross-carrier scheduling information comprises cross-carrier scheduling information corresponding to a SCell on condition that the PCell is scheduled by the SCell; or

the cross-carrier scheduling information comprises cross-carrier scheduling information corresponding to each of multiple SCells on condition that the PCell is scheduled by the multiple SCells.

8. The method of claim 7 , wherein the cross-carrier scheduling information corresponding to the SCell or the cross-carrier scheduling information corresponding to each of the multiple SCells contains a carrier indicator field (CIF) value and a cell identifier (ID) of the SCell.

9. A network-side device, comprising:

a transceiver;

a processor; and

a memory configured to store instructions executable by the processor, wherein

the processor is configured to execute the instructions to cause the transceiver to transmit higher-layer signaling, wherein the higher-layer signaling carries scheduling configuration information indicating that a primary cell (PCell) can be cross-carrier scheduled by one or more secondary cells (SCells) and higher-layer parameter configuration indicating one or more searching spaces to-be-monitored in the one or more SCells;

wherein the processor is configured to:

configure a searching space set for a bandwidth part (BWP) of the PCell, wherein the searching space set comprises one or more candidate searching spaces used by the one or more SCells to perform cross-carrier scheduling on the PCell;

assign the one or more candidate searching spaces as the one or more searching spaces to-be-monitored and adding the one or more candidate searching spaces into a searching space list; and

determine the higher-layer parameter configuration according to the searching space list.

10. The network-side device of claim 9 , wherein

the higher-layer signaling further carries cross-carrier scheduling information; and

the cross-carrier scheduling information comprises cross-carrier scheduling information corresponding to a SCell on condition that the PCell is scheduled by the SCell; or

the cross-carrier scheduling information comprises cross-carrier scheduling information corresponding to each of multiple SCells on condition that the PCell is scheduled by the multiple SCells.

11. The network-side device of claim 10 , wherein the cross-carrier scheduling information corresponding to the SCell or the cross-carrier scheduling information corresponding to each of the multiple SCells contains a carrier indicator field (CIF) value and a cell identifier (ID) of the corresponding SCell.

Assignments (1)

Priority Claims (1)

Continuity (2)

References Cited (19)