FIELD: radio engineering, communication.
SUBSTANCE: information processing device (10) includes comparison means (11) for comparing a plurality of RF elements of the measured information (1046) indicating the signal reception information measured for each of the plurality of radio terminals (31-34) to the plurality of RF elements of the predicted information (1045) predicted as reception information in one radio terminal for each of the plurality of local areas, and aggregation means (12) for aggregating the number of radio terminals that have measured the measured information by finding within the predetermined range of the predicted information, among the plurality of elements of the measured information, for each of the plurality of local areas.
EFFECT: efficient extraction of positional information about the radio terminal irrespective of the specific function of the radio terminal.
10 cl, 6 dwg
