A scheduling method, comprising: enabling, by a base station, first scheduling to allocate resources to first-category user equipment, UE, wherein the base station is configured to process data on a secondary component carrier of the first-category UE, and a current cell of the first-category UE is a secondary cell corresponding to the secondary component carrier; and transmitting, by the base station, data of the first-category UE over an air interface according to the resources allocated to the first-category UE, wherein the method is characterized in that: an enabling moment of the first scheduling is a first duration ahead of an air interface transmission moment corresponding to the first scheduling; an enabling moment of the second scheduling is a second duration ahead of an air interface transmission moment corresponding to second scheduling; the first duration is greater than the second duration; and the second scheduling is scheduling for the first-category UE when the first scheduling is not enabled, or the second scheduling is scheduling for second-category UE, wherein the second-category UE is any one or more types of the following UEs among UEs served by the base station: UE that does not support carrier aggregation, CA, UE supporting CA and whose current cell is a primary serving cell, and UE supporting CA and whose secondary component carrier is not activated. enabling, by a base station, first scheduling to allocate resources to first-category user equipment, UE, wherein the base station is configured to process data on a secondary component carrier of the first-category UE, and a current cell of the first-category UE is a secondary cell corresponding to the secondary component carrier; and transmitting, by the base station, data of the first-category UE over an air interface according to the resources allocated to the first-category UE, wherein the method is characterized in that: an enabling moment of the first scheduling is a first duration ahead of an air interface transmission moment corresponding to the first scheduling; an enabling moment of the second scheduling is a second duration ahead of an air interface transmission moment corresponding to second scheduling; the first duration is greater than the second duration; and the second scheduling is scheduling for the first-category UE when the first scheduling is not enabled, or the second scheduling is scheduling for second-category UE, wherein the second-category UE is any one or more types of the following UEs among UEs served by the base station: UE that does not support carrier aggregation, CA, UE supporting CA and whose current cell is a primary serving cell, and UE supporting CA and whose secondary component carrier is not activated. an enabling moment of the first scheduling is a first duration ahead of an air interface transmission moment corresponding to the first scheduling; an enabling moment of the second scheduling is a second duration ahead of an air interface transmission moment corresponding to second scheduling; the first duration is greater than the second duration; and the second scheduling is scheduling for the first-category UE when the first scheduling is not enabled, or the second scheduling is scheduling for second-category UE, wherein the second-category UE is any one or more types of the following UEs among UEs served by the base station: UE that does not support carrier aggregation, CA, UE supporting CA and whose current cell is a primary serving cell, and UE supporting CA and whose secondary component carrier is not activated.