Method and apparatus for providing location information in mobile device

摘要

A method of location information in a mobile device capable of improving position accuracy of the mobile device using a database (DB) of peripheral auxiliary data when GPS and navigation are performed in the mobile device, and an apparatus thereof is provided. The method of providing location information in a mobile device includes acquiring initial location information of the mobile device when a location based service is executed, transmitting the acquired initial location information to a server, receiving auxiliary data corresponding to the initial location information from the server, classifying satellites to be used to determine a location with reference to the auxiliary data, and determining the location based on a satellite signal of a satellite having a high weight through the classification of the satellites.

主权项

1. A method of providing location information in a mobile device, the method comprising:
acquiring initial location information of the mobile device when a location based service is executed; transmitting the acquired initial location information to a server; receiving auxiliary data corresponding to the initial location information from the server; classifying satellites to be used to determine a location with reference to the auxiliary data; and determining the location based on a satellite signal of a satellite having a high weight through the classification of the satellites, wherein the determining of the location comprises:
determining whether a sight line ensuring satellite among the classified satellites satisfies a minimum threshold necessary to determine the location;determining the location by the sight line ensuring satellite when the sight line ensuring satellite satisfies the minimum threshold;determining the location according to weights of the sight line ensuring satellite and a sight line non-ensuring satellite when the sight line ensuring satellite does not satisfy the minimum threshold;excluding a satellite signal of the sight line non-ensuring satellite to determine the location when the number of sight line ensuring satellites is sufficient to determine the location; andperforming positioning with respect to a current location of the mobile device using a satellite signal of the sight line ensuring satellite.