Apparatus and method for diagnosing abnormality of mobile communication network using operational logic modeling and comparative analysis

A method of diagnosing an abnormality of a mobile communication network, the method comprising:

• modeling a control plane operation of an analysis target mobile communication network based on a control plane message collected by a preset Mobile Network Operator to a terminal in a formal model of a form of a state machine;
• comparing and analyzing processing required times of a control plane operation model of the modeled analysis target mobile communication network and a control plane operation model of another mobile communication network previously generated in a same path;
• and
• detecting an abnormal operation of the mobile communication network of the analysis target based on a comparison result, wherein the detecting includes determining an interval of the control plane message of the analysis target mobile communication network as a long latency message interval (LMI) when the processing required time of the control plane operation model of the analysis target mobile communication network is greater than the processing required time of the control plane operation model of the another mobile communication network in the same path.

An apparatus for diagnosing an abnormality of a mobile communication network, the apparatus comprising:

• a modeling unit configured to model a control plane operation of an analysis target mobile communication network based on the control plane messages collected by a preset Mobile Network Operator to a terminal in a formal model of a form of a state machine;
• an analysis unit configured to compare processing required times of a control plane operation model of the modeled analysis target mobile communication network and a control plane operation model of another mobile communication network previously generated in a same path, wherein the analysis unit includes:
• an extraction unit configured to extract a path and a processing time of control plane messages existing in the path from the control plane operation model of the analysis target mobile communication network and the control plane operation model of the other mobile communication network, wherein the extraction unit is configured to extract a path that is a set of transitions from a source state to a sink state in each of the control plane operation model of the analysis target mobile communication network and the control plane operation model of the another mobile communication network, and extract the processing required time of the control plane messages existing in the extracted path;
• and
• a comparison unit configured to compare the extracted processing required times in the same path extracted from the control plane operation model of the analysis target mobile communication network and the control plane operation model of the another mobile communication network;
• and
• a detection unit configured to detect an abnormal operation of the mobile communication network of the analysis target based on the comparison result.