Data and control multiplexing for uplink mimo with carrier aggregation and clustered-dft
A method and apparatus for signal processing in a wireless transmit receive unit (WTRU), including generating a plurality of data bits and a plurality of control bits, mapping the data bits and control bits to one or more codewords, multiplexing the data bits and control bits, dividing the bits into layers, allocating control bits to each layer based on a channel quality of each codeword and a channel quality of each layer, and channel interleaving each layer for output to one or more antennas.
1. A method of uplink transmission in a wireless transmit receive unit (WTRU), the method comprising:
transmitting, in a single subframe, a first uplink shared channel (UL-SCH) transport block, a second UL-SCH transport block, channel quality indicator (CQI)/precoding matrix indicator (PMI) bits, and hybrid automatic repeat request (HARQ) acknowledge/non-acknowledge (ACK/NACK) bits via multiple layers;
wherein the first UL-SCH transport block has a first modulation and coding scheme (MCS) and the second UL-SCH transport block has a second MCS that is relatively lower than the first MCS;
wherein the CQI/PMI bits are only transmitted via all layers of one or more layers to which the first UL-SCH transport block is mapped and wherein the HARQ ACK/NACK bits are transmitted via all of the one or more layers to which the first UL-SCH transport block is mapped and all layers of one or more layers to which the second UL-SCH transport block is mapped; and
wherein the one or more layers to which the first UL-SCH transport block is mapped are different than the one or more layers to which the second UL-SCH transport block is mapped.
2. The method of claim 1 , wherein the one or more layers to which the first UL-SCH transport block is mapped is one layer.
3. The method of claim 1 , wherein the one or more layers to which the first UL-SCH transport block is mapped is two layers.
4. The method of claim 1 , wherein the first UL-SCH transport block, the second UL-SCH transport block, the CQI/PMI bits, and the HARQ ACK-NACK bits are transmitted using a multiple-input multiple-output (MIMO) transmission scheme.
5. The method of claim 4 , wherein the CQI/PMI bits and the HARQ ACK-NACK bits are transmitted using transmit diversity.
6. The method of claim 5 , wherein the first UL-SCH transport block and the second UL-SCH transport block are transmitted using spatial multiplexing.
7. The method of claim 1 , wherein the CQI/PMI bits are coded CQI/PMI bits and the HARQ ACK/NACK bits are coded HARQ ACK/NACK bits.
8. The method of claim 7 , wherein the CQI/PMI bits are independently channel coded from the HARQ ACK/NACK bits to independently generate the coded CQI/PMI bits and the coded HARQ ACK/NACK bits, respectively.
9. The method of claim 8 , wherein the first UL-SCH transport block and the second UL-SCH transport block each include a plurality of coded data bits.
10. The method of claim 9 , wherein the plurality of coded data bits are a result of a transport block cyclic redundancy check (CRC) attachment, code block segmentation and code block CRC attachment, channel coding, rate matching, and code block concatenation.
11. A wireless transmit receive unit (WTRU) comprising:
a processor; and
a transmitter operatively coupled to the processor;
the processor and transmitter configured to transmit, in a single subframe, a first uplink shared channel (UL-SCH) transport block, a second UL-SCH transport block, channel quality indicator (CQI)/precoding matrix indicator (PMI) bits, and hybrid automatic repeat request (HARQ) acknowledge/non-acknowledge (ACK/NACK) bits via multiple layers;
wherein the first UL-SCH transport block has a first modulation and coding scheme (MCS) and the second UL-SCH transport block has a second MCS that is relatively lower than the first MCS;
wherein the CQI/PMI bits are only transmitted via all layers of one or more layers to which the first UL-SCH transport block is mapped and wherein the HARQ ACK/NACK bits are transmitted via all of the one or more layers to which the first UL-SCH transport block is mapped and all layers of one or more layers to which the second UL-SCH transport block is mapped; and
wherein the one or more layers to which the first UL-SCH transport block is mapped are different than the one or more layers to which the second UL-SCH transport block is mapped.
12. The WTRU of claim 11 , wherein the one or more layers to which the first UL-SCH transport block is mapped is one layer.
13. The WTRU of claim 11 , wherein the one or more layers to which the first UL-SCH transport block is mapped is two layers.
14. The WTRU of claim 11 , wherein the processor and transmitter are further configured to transmit the first UL-SCH transport block, the second UL-SCH transport block, the CQI/PMI bits, and the HARQ ACK-NACK bits using a multiple-input multiple-output (MIMO) transmission scheme.
15. The WTRU of claim 14 , wherein the processor and transmitter are further configured to transmit the CQI/PMI bits and the HARQ ACK-NACK bits using transmit diversity.
16. The WTRU of claim 15 , wherein the processor and transmitter are further configured to transmit the first UL-SCH transport block and the second UL-SCH transport block using spatial multiplexing.
17. The WTRU of claim 11 , wherein the CQI/PMI bits are coded CQI/PMI bits and the HARQ ACK/NACK bits are coded HARQ ACK/NACK bits.
18. The WTRU of claim 17 , wherein the CQI/PMI bits are independently channel coded from the HARQ ACK/NACK bits to independently generate the coded CQI/PMI bits and the coded HARQ ACK/NACK bits, respectively.
19. The WTRU of claim 11 , wherein the first UL-SCH transport block and the second UL-SCH transport block each include a plurality of coded data bits.
20. The WTRU of claim 19 , wherein the plurality of coded data bits are a result of a transport block cyclic redundancy check (CRC) attachment, code block segmentation and code block CRC attachment, channel coding, rate matching, and code block concatenation.