Method for transmitting/receiving signals using multiple carriers in wireless communication system and device therefor

Abstract

The present application discloses a method whereby user equipment receives signals from a base station via a first carrier and a second carrier in a wireless communication system. More specifically, the method comprises the steps of: receiving a downlink control channel on the first carrier; and receiving at least one downlink data channel on the first and second carriers on the basis of the downlink control information, wherein the first carrier is for use as a downlink, the second carrier is for use as an uplink or a downlink, and the downlink control channel includes information regarding the use of the second carrier.

What is claimed is: 
     
         1 . A method for allowing a user equipment (UE) to receive a signal from a base station (BS) through a first carrier and a second carrier in a wireless communication system, comprising:
 receiving a downlink control channel on the first carrier; and   receiving at least one downlink data channel on the basis of the downlink control channel on the first carrier and the second carrier,   wherein the first carrier is a carrier for downlink usage, and the second carrier is a carrier for an uplink or downlink usage, and   the downlink control channel includes information regarding usage of the second carrier.   
     
     
         2 . The method according to  claim 1 , wherein:
 the downlink control channel includes resource allocation information for one downlink data channel extending over a frequency band of the first carrier and a frequency band of the second carrier; and   the receiving the at least one downlink data channel includes:   receiving the single downlink data channel on the basis of the downlink control channel on the first carrier and the second carrier.   
     
     
         3 . The method according to  claim 1 , wherein:
 the downlink control channel includes one resource allocation information for the downlink data channel; and   the receiving the at least one downlink data channel includes:   receiving a first downlink data channel using the single resource allocation information on the first carrier; and   receiving a second downlink data channel using the single resource allocation information on the second carrier.   
     
     
         4 . The method according to  claim 1 , wherein the downlink control channel includes specific information indicating whether the downlink data channel is received on the second carrier. 
     
     
         5 . The method according to  claim 1 , wherein:
 the first carrier is a downlink frequency band of a frequency division duplex (FDD) mode; and   the second carrier is a frequency band of a time division duplex (TDD) mode.   
     
     
         6 . The method according to  claim 1 , wherein:
 if the second carrier is used for the downlink usage, a frequency band of the downlink usage is identical in size to a frequency band of the first carrier.   
     
     
         7 . A method for allowing a base station (BS) to transmit a signal to a user equipment (UE) through a first carrier and a second carrier in a wireless communication system, comprising:
 transmitting a downlink control channel on the first carrier; and   transmitting at least one downlink data channel on the basis of the downlink control channel on the first carrier and the second carrier,   wherein the first carrier is a carrier for downlink usage, and the second carrier is a carrier for an uplink or downlink usage, and   the downlink control channel includes information regarding usage of the second carrier.   
     
     
         8 . The method according to  claim 7 , wherein:
 the downlink control channel includes resource allocation information for one downlink data channel extending over a frequency band of the first carrier and a frequency band of the second carrier; and   the transmitting the at least one downlink data channel includes:   transmitting the single downlink data channel on the basis of the downlink control channel on the first carrier and the second carrier.   
     
     
         9 . The method according to  claim 7 , wherein:
 the downlink control channel includes one resource allocation information for the downlink data channel; and   the transmitting the at least one downlink data channel includes:   transmitting a first downlink data channel using the single resource allocation information on the first carrier; and   transmitting a second downlink data channel using the single resource allocation information on the second carrier.   
     
     
         10 . The method according to  claim 7 , wherein the downlink control channel includes specific information indicating whether the downlink data channel is received on the second carrier. 
     
     
         11 . The method according to  claim 7 , wherein:
 the first carrier is a downlink frequency band of a frequency division duplex (FDD) mode; and   the second carrier is a frequency band of a time division duplex (TDD) mode.   
     
     
         12 . The method according to  claim 7 , wherein:
 if the second carrier is used for the downlink usage, a frequency band of the downlink usage is identical in size to a frequency band of the first carrier.