Method and apparatus for transmitting uplink control information in multi-carrier wireless communication system

An Uplink Control Information (UCI) transmission apparatus in a wireless communication system supporting multicarrier transmission, comprising:

• a transmission controller which calculates a number of bits of UCI to be transmitted;
• at least one channel coder which performs channel coding on the UCI under the control of the transmission controller;
• at least one divider which divides the channel-coded UCI for a number of Physical Uplink Shared Channels (PUSCHs);
• and
• at least one PUSCH transmission unit which is as many as a number of carriers and multiplexes the divided UCI with data and transmits the multiplexed UCI and data on the PUSCHs.

An Uplink Control Information (UCI) reception apparatus in a wireless communication system supporting multicarrier transmission, comprising:

• a UCI reception controller which calculates a number of UCI bits Qk per PUSCH;
• at least one PUSCH reception unit which is as many as a number of the carriers and extracts the coded UCI bits corresponding to the Qk per PUSCH under the control of the UCI reception controller;
• at least one combiner which combines the coded UCI bits extracted from the individual PUSCHs;
• and
• at least one channel decoder which performs decoding on the combined coded UCI bits to recover the UCI.

An Uplink Control Information (UCI) transmission method in a wireless communication system supporting multicarrier transmission, comprising:

• selecting a special Physical Uplink Shared Channel (PUSCH) to transmit a UCI;
• channel-coding the UCI with reference to a number of UCI bits available;
• assigning the channel coded UCI to the special PUSCH;
• and
• transmitting the special PUSCH carrying UCI multiplexed with data along with other PUSCHs carrying only the data.

An Uplink Control Information (UCI) transmission apparatus in a wireless communication system supporting multicarrier transmission, comprising:

• a transmission controller which selects a special Physical Uplink Shared Channel (PUSCH) and a number of bits per UCI;
• at least one channel coder which performs channel coding on the UCI under the control of the transmission controller;
• at least one switch for providing the channel-coded UCI to the special PUSCH under the control of the transmission controller;
• at least one PUSCH transmission unit which is as many as a number of the carriers, multiplexes the UCI with the data to be carried on the special PUSCH, and transmits the special PUSCH carrying the UCI and data and other PUSCHs carrying only the data.

An Uplink Control Information (UCI) reception method in a wireless communication system supporting multicarrier transmission, comprising:

• selecting a special PUSCH;
• calculating a number of coded UCI bits ‘Qk’ carried by the special PUSCH;
• extracting the coded UCI bits corresponding to Qk from the special PUSCH;
• and decoding the coded UCI bits to recover an original CQI.

An Uplink Control Information (UCI) reception apparatus in a wireless communication system supporting multicarrier transmission, comprising:

• a UCI reception controller which selects a special Physical Uplink Shared Channel (PUSCH) and calculates a number of UCI bits ‘Qk’ transmitted on the special PUSCH;
• at least one PUSCH reception unit which is as many as a number of carriers, where one of the at least one PUSCH reception unit extracts the UCI bits corresponding to Qk from the special PUSCH and the others extracts only data under the control of the UCI reception controller;
• at least one combiner which combines the UCI bits extracted from the special PUSCH;
• and at least one decoder which decodes the combined UCI bits to recover an original CQI.