Apparatus and method for data transmission/receiving using channel state information in a wireless communication system

The present invention relates to a method for transmitting a transmission inter-stage data in a wireless communication system, this present invention provides a data transmitting and receiving method according to a channel state in a wireless communication system, and measure the characteristics of the transmission channel used for data transmission, the step of transmitting the channel state information on the measured channel characteristics, and, in response to the channel status information, selecting a sub-channel for a bit allocation by the code rate of the control channel code of each sub-channel, and the selected sub-channel by comprising the step of transmitting the data, and reduces the number of bits to be transmitted over the channel coding rate control of the channel code selection only a good sub-channel channel characteristics, and the bit in the same modulation scheme for the selected subchannel characterized by carrying out the assignment. V-BLAST, MIMO, OFDM, channel state information (CSI), the bit allocation, SBA, feedback