WIRELESS COMMUNICATION SYSTEM, AGGREGATION DEVICE, INTERFERENCE SOURCE AIR TIME ACQUISITION METHOD, AND INTERFERENCE SOURCE AIR TIME ACQUISITION PROGRAM
There are provided a plurality of radio devices detecting an interference source signal transmitted by an interference source and generating pieces of air time information showing whether the interference source signal exists or not for each predetermined time unit; and an aggregation device estimating air time of the interference source by acquiring the pieces of air time information from the plurality of radio devices and aggregating/integrating the acquired pieces of air time information for each predetermined unit time, matching timings.
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4 . A radio communication system comprising:
a plurality of radio devices each detecting an interference source signal transmitted by an interference source and each generating pieces of air time information each indicating a transmission status of the signal from the interference source at each predetermined time unit; an aggregation device for estimating the air time of the interference source by acquiring the pieces of air time information from the plurality of radio devices respectively and aggregating/integrating the acquired air time information for each predetermined time unit.
5 . The radio communication system according to claim 1 , wherein the aggregation device is configured to manages reference time T and the time unit D in order to match the timing of the plurality of radio devices detecting the interference source signal.
6 . The radio communication system according to claim 1 , wherein
the plurality of radio devices are configured to transmit detection levels of the interference source signal and pieces of position information about the radio devices to the aggregation device as the pieces of air time information; and
the aggregation device is configured to estimate a position of the interference source from the detection levels of the interference source signal at the plurality of radio devices and the pieces of position information about the plurality of radio devices.
7 . The radio communication system according to claim 1 , wherein
the aggregation device is configured to analyze a tendency pattern of the estimated air time of the interference source, predict future air time of the interference source according to the tendency pattern, determine a transmission timing advantageous to the radio devices and notify the radio devices of the transmission timing.
8 . An aggregation device connected to a plurality of radio devices, the plurality of radio devices each detecting an interference source signal transmitted by an interference source and each generating pieces of air time information indicating a transmission status of the signal from the interference source at each predetermined time unit, the aggregation device comprising:
circuitry for estimating the air time of the interference source by acquiring the pieces of air time information from the plurality of radio devices respectively and aggregating/integrating the acquired pieces of air time information for each predetermined time unit.
9 . A radio communication method comprising:
causing a plurality of radio devices respectively to detect an interference source signal transmitted by an interference source;
causing the plurality of radio devices respectively to generate pieces of air time information indicating the presence or absence of the interference source signal for each predetermined time unit;
acquiring the pieces of air time information from the plurality of radio devices, respectively; and
estimating the air time of the interference source by aggregating/integrating the acquired air time information for each predetermined time unit.