A method of controlling a path providing device for providing a path to a vehicle, where the method includes: receiving, through a telecommunication control unit, high-definition map data from an external device, wherein the high-definition map data is received as a plurality of tile units; varying at least one of a size or a shape of at least one tile unit of the high-definition map data; generating, based on the high-definition map comprising the plurality of tile units, forward path information for guiding a path on a road ahead of the vehicle, wherein the forward path information is generated in units of lanes of the road ahead of the vehicle; and providing the forward path information to at least one electrical part provided in the vehicle.