INTERRUPTION CAUSE DETERMINATION DEVICE, INTERRUPTION CAUSE DETERMINATION METHOD, AND RECORDING MEDIUM STORED WITH AN INTERRUPTION CAUSE DETERMINATION PROGRAM

摘要

An interruption cause determination device comprising: acquiring in the memory a radio wave reception strength(RWRS) and a packet error rate(PRE) of a wireless link, and estimating a characteristic curve of the PRE against RWRS that passes through a point corresponding to a combination of values of the RWRS and the PRE at a first point in time a specific amount of time earlier than a second point in time at which the acquired PRE of the wireless link reached a threshold value or greater, under the assumption that the interference power at the first point in time is maintained; and determining the cause of interruption based on a positional relationship of a point corresponding to a combination of values of the RWRS and the PRE at the second point in time, with respect to the estimated characteristic curve of the PRE against RWRS.

主权项

1. An interruption cause determination device, comprising:
a memory; and a processor configured to execute a procedure, the procedure including:
acquiring, in the memory, a radio wave reception strength and a packet error rate of a wireless link, and estimating a characteristic curve of the packet error rate against the radio wave reception strength that passes through a point corresponding to a combination of values of the radio wave reception strength and the packet error rate at a first point in time that is a specific amount of time earlier than a second point in time at which the acquired packet error rate of the wireless link reaches a threshold value or greater, under the assumption that an interference power at the first point in time is maintained; anddetermining the cause of interruption based on a positional relationship of a point corresponding to a combination of values of the radio wave reception strength and the packet error rate at the second point in time, with respect to the estimated characteristic curve of the packet error rate against the radio wave reception strength.