The system comprises: radio network controller (RNC) and terminal. The RNC comprises: measurement control unit used for sending down the 1A event report capable of being triggered by the test set in co-frequency measurement control process, and making check after terminal sends the measurement report of the test set to confirm whether or not the cells in test set are the cells in neighboring cellconfiguration list, and reporting the cells in test set which is not in the list of neighboring cell configuration to the log recording unit; log recording unit used for receiving the cells in test setwhich is not in the list of neighboring cell configuration from measurement control unit, and recording the content reported by the cell in test set; and log analyzing unit used for analyzing the log content recorded by the log recording unit to get the neighboring cell miss-matched. The invention also reveals a radio network controller (RNC).