Method and apparatus for receiving a downlink signal in a wireless communication system supporting carrier aggregation

A user equipment (UE) for receiving a downlink signal in a wireless communication system, the UE comprising:

• a receiver;
• and
• a processor configured to control the receiver to:
• receive, from a base station, a physical downlink control channel (PDCCH) on a carrier, and
• receive, from the base station, a physical downlink shard channel (PDSCH) corresponding to the PDCCH on a carrier different from the carrier receiving the PDCCH,
• wherein a starting orthogonal frequency division multiplexing (OFDM) symbol of the PDSCH is indicated by information received through the PDCCH.

A method for transmitting a downlink signal by a base station (BS) in a wireless communication system, the method comprising:

• transmitting, by the BS to a user equipment, a physical downlink control channel (PDCCH) on a carrier;
• and
• transmitting, by the BS to the user equipment, a physical downlink shard channel (PDSCH) corresponding to the PDCCH on a carrier different from the carrier transmitting the PDCCH,
• wherein a starting orthogonal frequency division multiplexing (OFDM) symbol of the PDSCH is indicated by information transmitted through the PDCCH.

A base station (BS) for transmitting a downlink signal in a wireless communication system, the BS comprising:

• a transmitter;
• and
• a processor configured to control the transmitter to:
• transmit, to a user equipment, a physical downlink control channel (PDCCH) on a carrier;
• and
• transmit, to the user equipment, a physical downlink shard channel (PDSCH) corresponding to the PDCCH on a carrier different from the carrier transmitting the PDCCH,
• wherein a starting orthogonal frequency division multiplexing (OFDM) symbol of the PDSCH is indicated by information transmitted through the PDCCH.