| 摘要 |
PROBLEM TO BE SOLVED: To provide a location detection system capable of quickly detecting a location of a mobile terminal. SOLUTION: Base station apparatuses 30, 40, 50 transmit data including transmission time on the basis of a common time to a mobile terminal 60, when the base station apparatuses 30, 40, 50 receive a radio wave propagation time data obtained by the mobile terminal 60 on the basis of a difference from the received time and store past radio wave a propagation time data, the base station apparatuses 30, 40, 50 immediately inform the mobile terminal 60 about location data corresponding to the past radio wave propagation time data when the base station apparatuses 30, 40, 50 keeps the past radio wave propagation time, when the base station apparatuses 30, 40, 50 keeps no past radio wave propagation time, the base station apparatuses 30, 40, 50 make transmission to a host apparatus 10, receive location data calculated by the host apparatus 10 and store the data to a memory, and informs the mobile terminal 60 about the data. COPYRIGHT: (C)2003,JPO
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