Method of determining a PHS mobile phone user's exact position

摘要

The prevent invention is to provide a method of determining a PHS mobile phone user's exact position, which comprises the steps of establishing a positioning database containing a plurality of CS (cell station) numbers and position information associated with the CS numbers respectively in the mobile phone; entering into a position inquiry mode of the positioning database chosen by the PHS mobile phone user; searching for a corresponding CS number in the positioning database based on a current CS number detected by the PHS mobile phone; and showing the position information associated with the current CS number on a display of the mobile phone when the corresponding CS number exists in the positioning database, so as to enable the user to determine a precise location by making a position inquiry through the mobile phone without having to pay any additional fee to PHS service provider.