Search space configuration method and apparatus, and device and storage medium

An apparatus for configuring a search space, arranged in a network device, wherein the apparatus comprises:

• a processor;
• a transceiver connected to the processor;
• and
• a memory for storing an executable program code for the processor;
• wherein the processor is configured to load and execute the executable program code to:
• send a configuration signaling to a terminal device, wherein the configuration signaling is used for configuring at least one first search space for cross-carrier scheduling a second cell by a first cell, and the second cell is a self-scheduling cell;
• wherein the terminal device is configured to detect downlink control information in the at least one first search space;
• the configuration signaling is further used for releasing at least one third search space, and the at least one third search space is used for cross-carrier scheduling the second cell by the first cell, or the at least one third search space is used for the second cell to schedule the second cell,
• wherein the at least one third search space belongs to a first releasing space group;
• wherein the configuration signaling is further used for releasing at least one fourth search space;
• in response to that the at least one third search space is used for cross-carrier scheduling the second cell by the first cell, the at least one fourth search space is used for the second cell to schedule the second cell;
• or,
• in response to that the at least one third search space is used for the second cell to schedule the second cell, the at least one fourth search space is used for the first cell to schedule the second cell, wherein the at least one fourth search space belongs to the first releasing space group.