Patent ID: 7142872

Claim:
A system for providing position information of a target mobile communication terminal whose position is to be found out, comprising: a first mobile communication terminal for transmitting a position tracking signal for determining the position of said target mobile communication terminal, and calculating and transmitting first individual position information on the basis of acquisition assistance sensitive assistance (AASA) information at intervals of a predetermined time, said AASA information including a received signal strength indicator of radio waves transmitted from a GPS (Global Positioning System) satellite; a second mobile communication terminal being said target mobile communication terminal, said second mobile communication terminal calculating and transmitting second individual position information on the basis of said AASA information at intervals of a predetermined time; and a mobile communication server for generating said AASA information using said radio waves, transmitting the generated AASA information to said first mobile communication terminal and second mobile communication terminal upon receiving said position tracking signal transmitted from said first mobile communication terminal, and transferring said second individual position information transmitted from said second mobile communication terminal to said first mobile communication terminal, wherein said first mobile communication terminal is adapted to calculate correlative position information between it and said second mobile communication terminal on the basis of said first individual position information and second individual position information at intervals of a predetermined time and output the calculated correlative position information to a screen.