the corresponding mobile terminal equipments 20 in the exemplary embodiment various mobile terminal equipments 20 respectively has an unique identification code when the second transmitting module 12 receives information transmitted by various mobile terminal equipments 20 the received information comprises identification code corresponding to respective mobile terminal equipments 20 such that the second transmitting module 12 is able to pass the correlative positioning service information back to the corresponding mobile terminal equipments 20 according to the identification code the calling module 13 is used to search and call a positioning mode corresponding to the id transmitted by the mobile terminal equipments 20 according to the setting information in the setting database 111 the positioning module 14 is used to search and execute the corresponding positioning service program according to the positioning mode called by the calling module 13 so as to acquire the corresponding positioning service information e g geographic position information etc the mobile terminal equipment 20 further comprises a reading module 21 and a first transmitting module 22 the reading module 21 is used to read the id of the subdomain 40 when the mobile terminal equipment enters into the subdomain 40 in the exemplary embodiment the reading module 21 is a.