Method for diagnosing mobile network

PURPOSE: A method for diagnosing a wireless network is provided to check wireless network performance indexes, and to diagnose a wireless network for optimizing reverse and forward links according to checked results, so that a manager can immediately diagnose a wireless environmental problem. CONSTITUTION: A system starts analyzing cells(400), and checks interworking optical repeater information of an RCS(Repeater Control System) including a reverse attenuation level(410). If an optical repeater is connected with a base station, the system outputs an optical combiner attenuation level confirm message if a reverse attenuation level value is set to a predetermined value(420). If an attenuation level value of the optical repeater is not set to the predetermined value, the system outputs an optical repeater level control message(430).