Apparatus and method for correcting location of base station
Disclosed herein is an apparatus and method for correcting the location of a base station. The apparatus includes a data collection unit for receiving collected data including collection places and scan data acquired from the collection places from a collection-only terminal, and receiving scan data having no collection places from a user service terminal. A determination unit obtains correlations between respective base stations based on a number of times each base station in an identical search group is found in a search using the collected data or the scan data, and determines whether a base station has been moved, deleted or added, based on the correlations between respective base stations. A location specification unit specifies a location of the corresponding base station that has changed due to any one of the movement, deletion, and addition of the base station, based on results of the determination.
1. An apparatus for correcting a location of a base station, comprising:
a data collection unit for receiving collected data including collection places and scan data acquired from the collection places from a collection-only terminal, and receiving scan data having no collection places from a user service terminal;
a determination unit for obtaining correlations between respective base stations based on a number of times each base station in an identical search group is found in a search using the collected data or the scan data, and determining whether a base station has been moved, deleted or added, based on the correlations between respective base stations; and
a location specification unit for specifying a location of the corresponding base station that has changed due to any one of the movement, deletion, and addition of the base station, based on results of the determination by the determination unit,
wherein the collection-only terminal and the user service terminal are separate terminals that are configured to separately provide their respective data to the data collection unit.
2. The apparatus of claim 1 , wherein: the correlations between respective base stations are represented by values of correlation coefficients, and the determination unit determines whether the corresponding base station has been added or deleted, using a change in a value of a corresponding correlation coefficient.
3. The apparatus of claim 1 , wherein: the correlations between respective base stations are represented by values of correlation coefficients, and the determination unit determines whether the corresponding base station has been deleted, using both a value of a corresponding correlation coefficient and information about time at which the base station was finally found.
4. The apparatus of claim 1 , wherein: the correlations between respective base stations are represented by values of correlation coefficients, and the determination unit determines whether the corresponding base station has been moved, using a configuration of a new identical search group and a change in a value of a corresponding correlation coefficient.
5. The apparatus of claim 1 , wherein the location specification unit is configured to, if it is determined by the determination unit that the base station has been newly added and if location information of the added base station is not known, specify a location of a base station having a high correlation coefficient, among previously constructed base stations, as a location of the newly added base station.
6. The apparatus of claim 1 , wherein the location specification unit is configured to, if it is determined by the determination unit that the base station has been newly added and if location information of the added base station is not known, estimate a location of the added base station using information of a previously constructed location database (DB), and specify the estimated location as a location of the newly added base station.
7. The apparatus of claim 1 , wherein the location specification unit is configured to, if it is determined by the determination unit that the base station has been newly added and if location information of the added base station is known, specify the location information as a location of the newly added base station.
8. The apparatus of claim 1 , wherein the location specification unit is configured to, if it is determined by the determination unit that the base station has been moved and if location information of the moved base station is not known, specify a location of a base station having a high correlation coefficient, among previously constructed base stations, as a location of the moved base station.
9. The apparatus of claim 1 , wherein the location specification unit is configured to, if it is determined by the determination unit that the base station has been moved and if location information of the moved base station is not known, estimate a location of the moved base station using information of a previously constructed location DB, and specify the estimated location as a location of the moved base station.
10. The apparatus of claim 1 , wherein the location specification unit is configured to, if it is determined by the determination unit that the base station has been moved and if location information of the moved base station is known, specify the location information as a location of the moved base station.
11. A method for correcting a location of a base station, comprising:
receiving, by a data collection unit, collected data including collection places and scan data acquired from the collection places from a collection-only terminal, and scan data having no collection places from a user service terminal;
obtaining, by a determination unit, correlations between respective base stations based on a number of times each base station in an identical search group is found in a search using the collected data or the scan data;
determining, by the determination unit, whether a base station has been moved, deleted or added, based on the correlations between respective base stations; and
specifying, by a location specification unit, a location of the corresponding base station that has changed due to any one of the movement, deletion, and addition of the base station, based on results of the determination,
wherein the collection-only terminal and the user service terminal are separate terminals that are configured to separately provide their respective data to the data collection unit.
12. The method of claim 11 , wherein: the correlations between respective base stations are represented by values of correlation coefficients, and determining comprises determining whether the corresponding base station has been added or deleted, using a change in a value of a corresponding correlation coefficient.
13. The method of claim 11 , wherein: the correlations between respective base stations are represented by values of correlation coefficients, and determining comprises determining whether the corresponding base station has been deleted, using both a value of a corresponding correlation coefficient and information about time at which the base station was finally found.
14. The method of claim 11 , wherein: the correlations between respective base stations are represented by values of correlation coefficients, and determining comprises determining whether the corresponding base station has been moved, using a configuration of a new identical search group and a change in a value of a corresponding correlation coefficient.
15. The method of claim 11 , wherein specifying the location comprises, if it is determined that the base station has been newly added and if location information of the added base station is not known, specifying a location of a base station having a high correlation coefficient, among previously constructed base stations, as a location of the newly added base station.
16. The method of claim 11 , wherein specifying the location comprises, if it is determined that the base station has been newly added and if location information of the added base station is not known, estimating a location of the added base station using information of a previously constructed location database (DB), and specifying the estimated location as a location of the newly added base station.
17. The method of claim 11 , wherein specifying the location comprises, if it is determined that the base station has been newly added and if location information of the added base station is known, specifying the location information as a location of the newly added base station.
18. The method of claim 11 , wherein specifying the location comprises, if it is determined that the base station has been moved and if location information of the moved base station is not known, specifying a location of a base station having a high correlation coefficient, among previously constructed base stations, as a location of the moved base station.
19. The method of claim 11 , wherein specifying the location comprises, if it is determined that the base station has been moved and if location information of the moved base station is not known, estimating a location of the moved base station using information of a previously constructed location DB, and specifying the estimated location as a location of the moved base station.
20. The method of claim 11 , wherein specifying the location comprises, if it is determined that the base station has been moved and if location information of the moved base station is known, specify the location information as a location of the moved base station.