FAILURE PREDICTION APPARATUS, RADIO COMMUNICATION SYSTEM, AND FAILURE PREDICTION PROGRAM

1 . A non-transitory computer-readable storage medium storing therein a failure prediction program for causing a computer to execute a process comprising:

generating at least one of first correlation coefficient data representing a similarity between first communication state data representing a communication state of a first cell provided by a first base station and second communication state data representing a communication state of a second cell provided by a second base station, or second correlation coefficient data representing a similarity between the first communication state data and third communication state data representing a communication state in a communication area of the first base station; and

determining a state of the first base station or the first cell on the basis of at least one of the first correlation coefficient data or the second correlation coefficient data.

2 . The non-transitory computer-readable storage medium storing therein the failure prediction program according to claim 1 ,

wherein

the first correlation coefficient data is generated by calculating a first correlation coefficient representing the similarity between the first communication state data and the second communication state data for each predetermined monitor period, and

the second correlation coefficient data is generated by calculating a second correlation coefficient representing the similarity between the first communication state data and the third communication state data for each predetermined monitor period.

3 . The non-transitory computer-readable storage medium storing therein the failure prediction program according to claim 2 ,

the failure prediction program further causing a computer to execute a process comprising

when the first correlation coefficient data is generated, generating first difference data representing a difference between the first correlation coefficients calculated for two different monitor periods, and first slope data representing a slope of the first correlation coefficient with respect to time; and

determining a state of the first base station or the first cell on the basis of the first difference data and the first slope data.

4 . The non-transitory computer-readable storage medium storing therein the failure prediction program according to claim 2 ,

wherein

the first communication state data represents a traffic volume of the first cell,

the second communication state data represents a traffic volume of the second cell, and

the first correlation coefficient represents a similarity between the traffic volume of the first cell and the traffic volume of the second cell calculated for each monitor period.

5 . The non-transitory computer-readable storage medium storing therein the failure prediction program according to claim 2 ,

wherein

the first communication state data represents the number of terminals connected to the first base station,

the second communication state data represents the number of terminals connected to the second base station, and

the first correlation coefficient represents a similarity between the number of terminals connected to the first base station and the number of terminals connected to the second base station, the number of the terminals being calculated for each monitor period.

6 . The non-transitory computer-readable storage medium storing therein the failure prediction program according to claim 2 ,

the failure prediction program further causing a computer to execute a process comprising:

when the second correlation coefficient data is generated, generating second difference data representing a difference between the second correlation coefficients calculated for two different monitor periods, and second slope data representing a slope of the second correlation coefficient with respect to time; and

determining a state of the first base station or the first cell on the basis of the second difference data and the second slope data.

7 . The non-transitory computer-readable storage medium storing therein the failure prediction program according to claim 2 ,

wherein

the first communication state data represents a traffic volume of the first base station,

the third communication state data represents a total traffic volume in the communication area of the first base station, and

the second correlation coefficient represents a similarity between the traffic volume of the first base station and the total traffic volume in the communication area of the first base station, the traffic volume and the total traffic volume being calculated for each monitor period.

8 . The non-transitory computer-readable storage medium storing therein the failure prediction program according to claim 1 ,

the failure prediction program further causing a computer to execute a process comprising:

extracting specific communication state data satisfying a predetermined condition from the first communication state data;

generating autocorrelation coefficient data by calculating an autocorrelation coefficient of the specific communication state data for each predetermined monitor period; and

determining a state of the first base station or the first cell on the basis of the autocorrelation coefficient data.

9 . The non-transitory computer-readable storage medium storing therein the failure prediction program according to claim 1 ,

the failure prediction program further causing a computer to execute a process comprising:

selecting, as the second cell, a surrounding cell having a communication state with a highest similarity to the communication state of the first cell from among a plurality of surrounding cells provided in the vicinity of the first cell.

10 . A failure prediction apparatus comprising:

a correlation calculator that generates at least one of first correlation coefficient data representing a similarity between first communication state data representing a communication state of a first cell provided by a first base station and second communication state data representing a communication state of a second cell provided by a second base station, or second correlation coefficient data representing a similarity between the first communication state data and third communication state data representing a communication state in a communication area of the first base station; and

a predictor that determines a state of the first base station or the first cell on the basis of at least one of the first correlation coefficient data or the second correlation coefficient data.

11 . A radio communication system comprising:

a base station system that provides a plurality of cells by using a plurality of base stations; and

a control system that controls the plurality of base stations, wherein

the control system includes a failure prediction apparatus that determines states of the plurality of base stations or the plurality of cells, and

the failure prediction apparatus includes

a correlation calculator that generates at least one of first correlation coefficient data representing a similarity between first communication state data representing a communication state of a first cell provided by a first base station and second communication state data representing a communication state of a second cell provided by a second base station, or second correlation coefficient data representing a similarity between the first communication state data and third communication state data representing a communication state in a communication area of the first base station, and

a predictor hat determines a state of the first base station or the first cell on the basis of at least one of the first correlation coefficient data or the second correlation coefficient data.