Method and system for processing a measurement task in a carrier aggregation system

The present invention discloses a method for processing a measurement task in a carrier aggregation system, comprising:; Scell ​​related measurement task has been deleted or deleted in the source Scell; Scell ​​remove all source or the source-related measurement task is reassigned to the present Scell another object of measurement frequency, do not delete the associated source Scell ​​measurement task, the associated source Scell ​​measurement object corresponding to the measurement task to modify the frequency measurement object after the reconfiguration. The source Pcell and target Pcell are on different frequencies, and the target Pcell, frequency measurement object, measurement task corresponding to the measured object is a source Pcell, the frequency, the measurement object is modified to measure the target frequency target Pcell,; measurement task corresponding when the target measurement object Pcell, the frequency, the measurement object is modified to the frequency of the measurement object is the source Pcell. Invention also discloses a carrier aggregation system measurement task processing system. The present invention effectively reduces the signaling configuration of a measurement task, the improved air interface resource utilization.