The present invention provides an electronic device for mitigating inter-cell interference in a dynamic TDD environment, the electronic device including: at least one antenna array including antenna elements; and a processor configured to use the antenna array and form a plurality of reception beams having mutually different directions, wherein at least one processor may enable: a first beam pair link to be formed with a first transmission beam emitted from a first base station by using a first reception beam having a first direction; information about a first TDD pattern indicating a TDD sequence set in a serving cell formed by the first base station and information about a second TDD pattern indicating a TDD sequence set in an adjacent cell adjacent to a serving cell formed by a second base station to be acquired; a first portion of the first TDD pattern to be selected on the basis of the information about the first TDD pattern and the information about the second TDD pattern; the detection of whether interference has occurred in the first portion; and a second beam pair link to be formed with one among transmission beams emitted from the second base station by using a second reception beam having a second direction different from the first direction, when the interference is determined to have occurred.