Reporting of ACK and CQI information in a wireless communication system

An apparatus for wireless communication, comprising:

• means for processing a first control channel from a first cell to detect for control information sent by the first cell to a user equipment (UE);
• means for processing a first data channel from the first cell, if control information is received from the first cell, to receive data sent by the first cell to the UE;
• means for processing a second control channel from a second cell to detect for control information sent by the second cell to the UE;
• means for processing a second data channel from the second cell, if control information is received from the second cell, to receive data sent by the second cell to the UE;
• means for determining acknowledgement (ACK) information for the first cell by the UE based on processing results for the first control channel and the first data channel from the first cell;
• means for determining ACK information for the second cell by the UE based on processing results for the second control channel and the second data channel from the second cell;
• and
• means for sending the ACK information for the first and second cells on a feedback channel with a single channelization code.

An apparatus for wireless communication, comprising:

• at least one processor configured to:
• process a first control channel from a first cell to detect for control information sent by the first cell to a user equipment (UE);
• process a first data channel from the first cell, if control information is received from the first cell, to receive data sent by the first cell to the UE;
• process a second control channel from a second cell to detect for control information sent by the second cell to the UE;
• process a second data channel from the second cell, if control information is received from the second cell, to receive data sent by the second cell to the UE;
• determine acknowledgement (ACK) information for the first cell by the UE based on processing results for the first control channel and the first data channel from the first cell;
• determine ACK information for the second cell by the UE based on processing results for the second control channel and the second data channel from the second cell;
• and
• send the ACK information for the first and second cells on a feedback channel with a single channelization code.

A computer program product, comprising:

• a non-transitory computer-readable medium comprising:
• code for causing at least one computer to process a first control channel from a first cell to detect for control information sent by the first cell to a user equipment (UE);
• code for causing the at least one computer to process a first data channel from the first cell, if control information is received from the first cell, to receive data sent by the first cell to the UE;
• code for causing the at least one computer to process a second control channel from a second cell to detect for control information sent by the second cell to the UE;
• code for causing the at least one computer to process a second data channel from the second cell, if control information is received from the second cell, to receive data sent by the second cell to the UE;
• code for causing the at least one computer to determine acknowledgement (ACK) information for the first cell by the UE based on processing results for the first control channel and the first data channel from the first cell;
• code for causing the at least one computer to determine ACK information for the second cell by the UE based on processing results for the second control channel and the second data channel from the second cell;
• and
• code for causing the at least one computer to send the ACK information for the first and second cells on a feedback channel with a single channelization code.

A method for wireless communication, comprising:

• sending data from at least one of first and second cells to a user equipment (UE);
• receiving acknowledgement (ACK) information for the first and second cells sent by the UE on a feedback channel with a single channelization code;
• receiving channel quality indication (CQI) information for the first and second cells sent by the UE on the feedback channel with the single channelization code;
• scheduling the UE for data transmission from at least one cell among the first and second cells;
• and
• selecting a transport format for each of the at least one cell based on CQI information for the cell, and wherein the sending data comprises sending data from each of the at least one cell to the UE in accordance with the transport format selected for the cell.

An apparatus for wireless communication, comprising:

• means for sending data from at least one of first and second cells to a user equipment (UE);
• means for receiving acknowledgement (ACK) information for the first and second cells sent by the UE on a feedback channel with a single channelization code;
• means for receiving channel quality indication (CQI) information for the first and second cells sent by the UE on the feedback channel with the single channelization code;
• means for scheduling the UE for data transmission from at least one cell among the first and second cells;
• and
• means for selecting a transport format for each of the at least one cell based on CQI information for the cell, and wherein the means for sending data comprises means for sending data from each of the at least one cell to the UE in accordance with the transport format selected for the cell.

A method for wireless communication, comprising:

• determining acknowledgement (ACK) information for a first cell by a user equipment (UE);
• determining acknowledgement (ACK) information for a second cell by the UE;
• sending the ACK information for the first cell on a feedback channel with a first channelization code;
• sending the ACK information for the second cell on the feedback channel with a second channelization code;
• encoding the ACK information for the first cell based on a block code to obtain a first codeword;
• and
• encoding the ACK information for the second cell based on the block code to obtain a second codeword, wherein the first and second codewords are sent on the feedback channel with the first and second channelization codes, respectively, and the block code implements a codebook comprising a first codeword for ACK, a second codeword for negative acknowledgement (NACK), and a third codeword for discontinuous transmission (DTX) for a cell.

A method for wireless communication, comprising:

• determining channel quality indication (CQI) information for a first cell at a user equipment (UE);
• determining CQI information for a second cell at the UE;
• mapping the CQI information for the first cell to a first set of information bits comprising mapping bits of the CQI information for the first cell to information bits in the first set in natural order;
• mapping the CQI information for the second cell to a second set of information bits comprising mapping bits of the CQI information for the second cell to information bits in the second set in natural order;
• encoding the first and second sets of information bits to obtain a codeword;
• and
• sending the codeword on a feedback channel with a single channelization code.

An apparatus for wireless communication, comprising:

• means for determining channel quality indication (CQI) information for a first cell at a user equipment (UE);
• means for determining CQI information for a second cell at the UE;
• means for mapping the CQI information for the first cell to a first set of information bits comprising means for mapping bits of the CQI information for the first cell to information bits in the first set in natural order;
• means for mapping the CQI information for the second cell to a second set of information bits comprising means for mapping bits of the CQI information for the second cell to information bits in the second set in natural order;
• means for encoding the first and second sets of information bits to obtain a codeword;
• and
• means for sending the codeword on a feedback channel with a single channelization code.

A method for wireless communication, comprising:

• determining channel quality indication (CQI) information for a first cell at a user equipment (UE);
• determining CQI information for a second cell at the UE;
• sending the CQI information for the first cell in a first transmission time interval (TTI);
• sending the CQI information for the second cell in a second TTI after the first TTI, wherein the CQI information for the first and second cells is sent on a feedback channel with a single channelization code to the first and second cells;
• and
• receiving data from the first cell or the second cell in a third TTI after the second TTI.

An apparatus for wireless communication, comprising:

• at least one processor configured to:
• determine channel quality indication (CQI) information for a first cell at a user equipment (UE);
• determine CQI information for a second cell at the UE;
• map the CQI information for the first cell to a first set of information bits comprising mapping bits of the CQI information for the first cell to information bits in the first set in natural order;
• map the CQI information for the second cell to a second set of information bits comprising mapping bits of the CQI information for the second cell to information bits in the second set in natural order;
• encode the first and second sets of information bits to obtain a codeword;
• and
• send the codeword on a feedback channel with a single channelization code.

A computer program product, comprising:

• a non-transitory computer-readable medium comprising:
• code for causing at least one computer to determine channel quality indication (CQI) information for a first cell at a user equipment (UE);
• code for causing the at least one computer to determine CQI information for a second cell at the UE;
• code for causing the at least one computer to map the CQI information for the first cell to a first set of information bits comprising mapping bits of the CQI information for the first cell to information bits in the first set in natural order;
• code for causing the at least one computer to map the CQI information for the second cell to a second set of information bits comprising mapping bits of the CQI information for the second cell to information bits in the second set in natural order;
• code for causing the at least one computer to encode the first and second sets of information bits to obtain a codeword;
• and
• code for causing the at least one computer to send the codeword on a feedback channel with a single channelization code.

An apparatus for wireless communication, comprising:

• at least one processor configured to:
• determine channel quality indication (CQI) information for a first cell at a user equipment (UE);
• determine CQI information for a second cell at the UE;
• send the CQI information for the first cell in a first transmission time interval (TTI);
• send the CQI information for the second cell in a second TTI after the first TTI, wherein the CQI information for the first and second cells is sent on a feedback channel with a single channelization code to the first and second cells;
• and
• receive data from the first cell or the second cell in a third TTI after the second TTI.

A computer program product, comprising:

• a non-transitory computer-readable medium comprising:
• code for causing at least one computer to determine channel quality indication (CQI) information for a first cell at a user equipment (UE);
• code for causing the at least one computer to determine CQI information for a second cell at the UE;
• code for causing the at least one computer to send the CQI information for the first cell in a first transmission time interval (TTI);
• code for causing the at least one computer to send the CQI information for the second cell in a second TTI after the first TTI, wherein the CQI information for the first and second cells is sent on a feedback channel with a single channelization code to the first and second cells;
• and
• code for causing the at least one computer to receive data from the first cell or the second cell in a third TTI after the second TTI.

An apparatus for wireless communication, comprising:

• means for determining channel quality indication (CQI) information for a first cell at a user equipment (UE);
• means for determining CQI information for a second cell at the UE;
• means for sending the CQI information for the first cell in a first transmission time interval (TTI);
• means for sending the CQI information for the second cell in a second TTI after the first TTI, wherein the CQI information for the first and second cells is sent on a feedback channel with a single channelization code to the first and second cells;
• and
• means for receiving data from the first cell or the second cell in a third TTI after the second TTI.

An apparatus for wireless communication, comprising:

• at least one processor configured to:
• send data from at least one of first and second cells to a user equipment (UE);
• receive acknowledgement (ACK) information for the first and second cells sent by the UE on a feedback channel with a single channelization code;
• receive channel quality indication (CQI) information for the first and second cells sent by the UE on the feedback channel with the single channelization code;
• schedule the UE for data transmission from at least one cell among the first and second cells;
• and
• select a transport format for each of the at least one cell based on CQI information for the cell, and wherein the sending data comprises sending data from each of the at least one cell to the UE in accordance with the transport format selected for the cell.

A computer program product, comprising:

• a non-transitory computer-readable medium comprising:
• code for causing at least one computer to send data from at least one of first and second cells to a user equipment (UE);
• code for causing the at least one computer to receive acknowledgement (ACK) information for the first and second cells sent by the UE on a feedback channel with a single channelization code;
• code for causing the at least one computer to receive channel quality indication (CQI) information for the first and second cells sent by the UE on the feedback channel with the single channelization code;
• code for causing the at least one computer to schedule the UE for data transmission from at least one cell among the first and second cells;
• and
• code for causing the at least one computer to select a transport format for each of the at least one cell based on CQI information for the cell, and wherein the sending data comprises sending data from each of the at least one cell to the UE in accordance with the transport format selected for the cell.

An apparatus for wireless communication, comprising:

• at least one processor configured to:
• determine acknowledgement (ACK) information for a first cell by a user equipment (UE);
• determine acknowledgement (ACK) information for a second cell by the UE;
• send the ACK information for the first cell on a feedback channel with a first channelization code;
• send the ACK information for the second cell on the feedback channel with a second channelization code;
• encode the ACK information for the first cell based on a block code to obtain a first codeword;
• and
• encode the ACK information for the second cell based on the block code to obtain a second codeword, wherein the first and second codewords are sent on the feedback channel with the first and second channelization codes, respectively, and the block code implements a codebook comprising a first codeword for ACK, a second codeword for negative acknowledgement (NACK), and a third codeword for discontinuous transmission (DTX) for a cell.

An apparatus for wireless communication, comprising:

• means for determining acknowledgement (ACK) information for a first cell by a user equipment (UE);
• means for determining acknowledgement (ACK) information for a second cell by the UE;
• means for sending the ACK information for the first cell on a feedback channel with a first channelization code;
• means for sending the ACK information for the second cell on the feedback channel with a second channelization code;
• means for encoding the ACK information for the first cell based on a block code to obtain a first codeword;
• and
• means for encoding the ACK information for the second cell based on the block code to obtain a second codeword, wherein the first and second codewords are sent on the feedback channel with the first and second channelization codes, respectively, and the block code implements a codebook comprising a first codeword for ACK, a second codeword for negative acknowledgement (NACK), and a third codeword for discontinuous transmission (DTX) for a cell.

A computer program product, comprising:

• a non-transitory computer-readable medium comprising:
• code for causing at least one computer to determine acknowledgement (ACK) information for a first cell by a user equipment (UE);
• code for causing the at least one computer to determine acknowledgement (ACK) information for a second cell by the UE;
• code for causing the at least one computer to send the ACK information for the first cell on a feedback channel with a first channelization code;
• code for causing the at least one computer to send the ACK information for the second cell on the feedback channel with a second channelization code;
• code for causing the at least one computer to encode the ACK information for the first cell based on a block code to obtain a first codeword;
• and
• code for causing the at least one computer to encode the ACK information for the second cell based on the block code to obtain a second codeword, wherein the first and second codewords are sent on the feedback channel with the first and second channelization codes, respectively, and the block code implements a codebook comprising a first codeword for ACK, a second codeword for negative acknowledgement (NACK), and a third codeword for discontinuous transmission (DTX) for a cell.

A method for wireless communication, comprising:

• determining channel quality indication (CQI) information for a first cell at a user equipment (UE);
• determining CQI information for a second cell at the UE;
• mapping the CQI information for the first cell to a first set of information bits;
• mapping the CQI information for the second cell to a second set of information bits;
• encoding the first and second sets of information bits to obtain a codeword;
• sending the codeword on a feedback channel with a single channelization code;
• receiving data sent by the first cell in accordance with a first transport format selected based on the CQI information for the first cell;
• receiving data sent by the second cell in accordance with a second transport format selected based on the CQI information for the second cell;
• determining acknowledgement (ACK) information for the first and second cells;
• and
• sending the ACK information for the first and second cells on the feedback channel with the single channelization code.

An apparatus for wireless communication, comprising:

• means for determining channel quality indication (CQI) information for a first cell at a user equipment (UE);
• means for determining CQI information for a second cell at the UE;
• means for mapping the CQI information for the first cell to a first set of information bits;
• means for mapping the CQI information for the second cell to a second set of information bits;
• means for encoding the first and second sets of information bits to obtain a codeword;
• means for sending the codeword on a feedback channel with a single channelization code;
• means for receiving data sent by the first cell in accordance with a first transport format selected based on the CQI information for the first cell;
• means for receiving data sent by the second cell in accordance with a second transport format selected based on the CQI information for the second cell;
• means for determining acknowledgement (ACK) information for the first and second cells;
• and
• means for sending the ACK information for the first and second cells on the feedback channel with the single channelization code.

An apparatus for wireless communication, comprising:

• at least one processor configured to:
• determine channel quality indication (CQI) information for a first cell at a user equipment (UE);
• determine CQI information for a second cell at the UE;
• map the CQI information for the first cell to a first set of information bits;
• map the CQI information for the second cell to a second set of information bits;
• encode the first and second sets of information bits to obtain a codeword;
• send the codeword on a feedback channel with a single channelization code;
• receive data sent by the first cell in accordance with a first transport format selected based on the CQI information for the first cell;
• receive data sent by the second cell in accordance with a second transport format selected based on the CQI information for the second cell;
• determine acknowledgement (ACK) information for the first and second cells;
• and
• send the ACK information for the first and second cells on the feedback channel with the single channelization code.

A computer program product, comprising:

• a non-transitory computer-readable medium comprising:
• code for causing at least one computer to determine channel quality indication (CQI) information for a first cell at a user equipment (UE);
• code for causing the at least one computer to determine CQI information for a second cell at the UE;
• code for causing the at least one computer to map the CQI information for the first cell to a first set of information bits;
• code for causing the at least one computer to map the CQI information for the second cell to a second set of information bits;
• code for causing the at least one computer to encode the first and second sets of information bits to obtain a codeword;
• code for causing the at least one computer to send the codeword on a feedback channel with a single channelization code;
• code for causing the at least one computer to receive data sent by the first cell in accordance with a first transport format selected based on the CQI information for the first cell;
• code for causing the at least one computer to receive data sent by the second cell in accordance with a second transport format selected based on the CQI information for the second cell;
• code for causing the at least one computer to determine acknowledgement (ACK) information for the first and second cells;
• and
• code for causing the at least one computer to send the ACK information for the first and second cells on the feedback channel with the single channelization code.