Augmented Reality (ar) Target Updating Method, and Terminal and Server Employing Same

1. A method of updating an Augmented Reality (AR) target in a terminal, comprising steps of: receiving an AR target, a boundary distance for a coverage area of the AR target, and at least one area identity (ID) list from a server; determining whether or not a location of the terminal satisfies a boundary condition based on the boundary distance if precise positioning is possible; determining whether or not a serving cell ID of the terminal satisfies the boundary condition based on the at least one area ID list if the precise positioning is impossible; and sending an update request for the AR target to the server if it is determined that the boundary condition is satisfied, wherein the boundary condition of the terminal is satisfied if a radius of the coverage area is greater than a sum of the boundary distance and a distance between a location of the terminal at a point of time at which the AR target has been requested and a current location of the terminal.

2. The method of claim 1 , wherein the at least one area ID list comprises an entire area ID list included in the coverage area and a boundary area ID list corresponding to the boundary of the coverage area.

3. The method of claim 2 , wherein the boundary condition is satisfied if the serving cell ID of the terminal is included in both the entire area ID list and the boundary area ID list.

4. The method of claim 1 , wherein the at least one area ID list comprises an outer area ID list corresponding to the boundary of the coverage area and an inner area ID list corresponding to an inside of the boundary of the coverage area.

5. The method of claim 4 , wherein the boundary condition of the terminal is satisfied if the serving cell ID of the terminal is included in the outer area ID list and is not included in the inner area ID list.

6. The method of claim 1 , wherein the at least one area ID list comprises an area ID list corresponding to an inside of the coverage area.

7. The method of claim 6 , wherein the boundary condition of the terminal is satisfied if the serving cell ID of the terminal is not included in the area ID list corresponding to the inside of the coverage area.

8. The method of claim 1 , wherein the at least one area ID list comprises a boundary area ID list corresponding to the coverage area.

9. The method of claim 8 , wherein the boundary condition of the terminal is satisfied if the serving cell ID of the terminal is included in the boundary area ID list.

10. The method of claim 1 , wherein the boundary condition of the terminal is further satisfied if the distance between the location of the terminal at the point of time at which the AR target has been requested and the current location of the terminal is greater than or equal to the boundary distance.