| 主权项 |
1. The present invention provides a precise location-based information service method for a user of a mobile terminal, including:
acquiring at least two types of positioning references based upon a positioning service request from the user, wherein one type of positioning reference includes a base station reference indicating base station coordinates of a base station in a mobile phone network providing services to the mobile terminal, and the base station coordinates are used as positioning information of the mobile terminal, and another type of positioning reference includes Wireless Fidelity (WIFI) information or Global Positioning System (GPS) information; establishing correlation relationships among the positioning references based on the acquired positioning references; and performing integrated positioning and cross-validation on a precise location of the user based on the correlation relationships to determine final positioning service information, wherein performing cross-validation further includes: correcting the base station coordinates using the Global Positioning System (GPS) information and the Wireless Fidelity (WIFI) information; correcting the WIFI information using GPS coordinates information; and correcting the WIFI information based on WIFI adjacent relationships, wherein correcting the base station coordinates using the GPS information and the WIFI information further includes: within a coverage area of the base station, determining a region where the user frequently appears by using the GPS information and the WIFI information; calculating a center point of region; and correcting the base station coordinates as coordinates of the center point of the region. |
