Method and device for discriminating positioning error using wireless lan signal

An apparatus for determining a positioning error, comprising:

• a database for storing grid cells separated by each pilot cell identifier (pCell ID) and wireless local area network (LAN) environment information matched to the grid cells;
• an information receiving unit for receiving terminal WLAN environment information and base station environment information from a mobile communication terminal;
• an identification information checking unit for checking access point (AP) identification information included in the terminal WLAN environment information and base station identification information included in the base station environment information;
• a grid cell positioning unit for selecting a grid cell corresponding to the AP identification information and calculating a grid cell coordinate value based on a coordinate value corresponding to the grid cell selected;
• a triangulating unit for selecting a base station grid cell corresponding to the base station identification information and calculating a base station-based triangulation coordinate value by performing triangulation a coordinate value corresponding to the base station grid cell;
• and
• an error determining unit for comparing the base station-based triangulation coordinate value and the grid cell coordinate value and determining whether there is a positioning error in any one of the base station-based triangulation coordinate value and the grid cell coordinate value.

A method for determining a positioning error, comprising:

• receiving terminal wireless local area network (LAN) environment information from a mobile communication terminal;
• checking access point (AP) identification information included in the terminal WLAN environment information;
• calculating a triangulation coordinate value by performing triangulation with AP position estimation information corresponding to the AP identification information;
• selecting one or more grid cells corresponding to the AP identification information and calculating a grid cell coordinate value based on a coordinate value corresponding to the grid cell selected;
• and
• comparing the triangulation coordinate value and the grid cell coordinate value and determining whether there is a positioning error in any one of the triangulation coordinate value and the grid cell coordinate value.

A method for determining a positioning error, comprising:

• receiving terminal wireless local area network (LAN) environment information and base station environment information from a mobile communication terminal;
• checking access point (AP) identification information included in the terminal WLAN environment information and base station identification information included in the base station environment information;
• selecting a grid cell corresponding to the AP identification information and calculating a grid cell coordinate value based on a coordinate value corresponding to the grid cell selected;
• selecting a base station grid cell corresponding to the base station identification information and calculating a base station-based triangulation coordinate value by performing triangulation a coordinate value corresponding to the base station grid cell;
• and
• comparing the base station-based triangulation coordinate value and the grid cell coordinate value and determining whether there is a positioning error in any one of the base station-based triangulation coordinate value and the grid cell coordinate value.