Method and apparatus for determining the cross-carrier scheduling epdcch search space ecce

The present invention provides a method for determining the cross-carrier scheduling method and apparatus of ECCE EPDCCH user equipment specific search space. According to one embodiment of the invention, the method comprising: determining at least an indication of the total number of carriers and NCI nCI simultaneously scheduled in accordance with the distance between the carriers candidate search space for each aggregation level, wherein said carrier indicator nCI NCI can be simultaneously used to indicate the scheduled carriers each carrier; and at least a position determining candidate search space at the each aggregation level assigned based ECCE the determined distance. According to the present invention, in the case of cross-carrier scheduling, may be uniformly positioned candidate search spaces on each aggregation level assigned ECCE, and may be implemented for a user equipment, data on different carriers control information corresponding to a carrier can be shifted using different candidate.