Control channel reception method and user equipment for performing same

A user equipment (UE) for receiving a downlink control channel being interfered by an adjacent cell from a serving cell, comprising:

• a radio frequency (RF) unit transmitting and receiving radio signals;
• and
• a processor controlling the RF unit,
• wherein the processor is configured to:
• control the RF unit to receive information related to discontinuous reception (DRX), wherein the information related to DRX includes information on a cycle period including a first duration where a downlink control channel is monitored and a second duration where the downlink control channel is not monitored, and
• control the RF unit to monitor the downlink control channel being received from the serving cell, based on the first duration,
• wherein the monitoring, by the processor, of the downlink control channel includes:
• mitigating an interference caused by the adjacent cell in the downlink control channel, when the DRX is not set up;
• and
• monitoring the downlink control channel having its interference mitigated;
• wherein, when a control format indicator (CFI) of the serving cell is larger than a CFI of the adjacent cell and when the interference in the downlink control channel is caused by a downlink data channel of the adjacent cell, the interference is mitigated based on information related to a transmission mode, a precoding matrix, and an allocated power of the downlink control channel.