4.7.3E Channel coding for HS-DPCCH when the UE is configured in MIMO mode with 4 transmit antennas
25.2123GPPMultiplexing and channel coding (FDD)Release 17TS
The coding for HS-DPCCH is defined separately for the following cases:
– when the UE is configured in MIMO mode with four transmit antennas and Secondary_Cell_Enabled is 0 (see subclause 4.7.3E.1);
– when the UE is configured in MIMO mode with four transmit antennas in any cell, and Secondary_Cell_Enabled is 1 (see subclause 4.7.3E.2);
– when the UE is configured in MIMO mode with four transmit antennas in any cell, and Secondary_Cell_Enabled is 2 (see subclause 4.7.3E.3);
– when the UE is configured in MIMO mode with four transmit antennas in any cell, and Secondary_Cell_Enabled is 3 (see subclause 4.7.3E.4);
4.7.3E.1 Channel coding for HS-DPCCH when the UE is configured in MIMO mode with four transmit antennas and Secondary_Cell_Enabled is 0
Two forms of channel coding are used, one for the composite number of transport blocks preferred (NTBP), precoding control indication (PCI) and channel quality indication (CQI) and another for HARQ-ACK (acknowledgement).
4.7.3E.1.1 Channel coding for HS-DPCCH HARQ-ACK
The HARQ acknowledgement message to be transmitted, as defined in [4], shall be coded to 10 bits as shown in Table 15C.3B. The output is denoted g0, g1,…g9.
When three or four transport blocks are received, the second and the third transport blocks are positively acknowledged (ACK) only if both transport blocks are received correctly. Otherwise both the second and the third transport blocks are negatively acknowledged (NACK).
When four transport blocks are received, the first and the fourth transport blocks are positively acknowledged (ACK) only if both transport blocks are received correctly. Otherwise both the first and the fourth transport blocks are negatively acknowledged (NACK).
Table 15C.3B: Channel coding of HARQ-ACK when the UE is configured in MIMO mode with four transmit antennas in the serving HS-DSCH cell and Secondary_Cell_Enabled is 0
|
HARQ-ACK |
g0 |
g1 |
g2 |
g3 |
g4 |
g5 |
g6 |
g7 |
g8 |
g9 |
|
|
HARQ-ACK in response to a single scheduled transport block |
|||||||||||
|
ACK |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
|
|
NACK |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
|
HARQ-ACK in response to two scheduled transport blocks |
|||||||||||
|
Response to primary transport block |
Response to second transport block |
||||||||||
|
ACK |
ACK |
1 |
0 |
1 |
0 |
1 |
1 |
1 |
1 |
0 |
1 |
|
ACK |
NACK |
1 |
1 |
0 |
1 |
0 |
1 |
0 |
1 |
1 |
1 |
|
NACK |
ACK |
0 |
1 |
1 |
1 |
1 |
0 |
1 |
0 |
1 |
1 |
|
NACK |
NACK |
1 |
0 |
0 |
1 |
0 |
0 |
1 |
0 |
0 |
0 |
|
HARQ-ACK in response to three scheduled transport blocks |
|||||||||||
|
Response to primary transport block |
Response to second and third transport blocks |
||||||||||
|
ACK |
ACK |
1 |
0 |
1 |
0 |
1 |
1 |
1 |
1 |
0 |
1 |
|
ACK |
NACK |
1 |
1 |
0 |
1 |
0 |
1 |
0 |
1 |
1 |
1 |
|
NACK |
ACK |
0 |
1 |
1 |
1 |
1 |
0 |
1 |
0 |
1 |
1 |
|
NACK |
NACK |
1 |
0 |
0 |
1 |
0 |
0 |
1 |
0 |
0 |
0 |
|
HARQ-ACK in response to four scheduled transport blocks |
|||||||||||
|
Response to primary and fourth transport blocks |
Response to second and third transport blocks |
||||||||||
|
ACK |
ACK |
1 |
0 |
1 |
0 |
1 |
1 |
1 |
1 |
0 |
1 |
|
ACK |
NACK |
1 |
1 |
0 |
1 |
0 |
1 |
0 |
1 |
1 |
1 |
|
NACK |
ACK |
0 |
1 |
1 |
1 |
1 |
0 |
1 |
0 |
1 |
1 |
|
NACK |
NACK |
1 |
0 |
0 |
1 |
0 |
0 |
1 |
0 |
0 |
0 |
|
PRE/POST indication |
|||||||||||
|
PRE |
0 |
0 |
1 |
0 |
0 |
1 |
0 |
0 |
1 |
0 |
|
|
POST |
0 |
1 |
0 |
0 |
1 |
0 |
0 |
1 |
0 |
0 |
|
The output bits g0, g1,…g9 are repeated as shown in Figure 20C.0
Figure 20C.0: Repetition of HARQ-ACK message
In Figure 20C.0, the repetition is according to the relation:
4.7.3E.1.2 Channel coding for HS-DPCCH composite number of transport blocks preferred, precoding control indication and channel quality indication
When the UE is configured in MIMO mode with four transmit antennas two types of CQI reports shall be supported by the UE. According to the definition of the CQI reporting procedure in [4], in type A CQI reporting the number of transport blocks preferred is up to four and in type B CQI reporting the number of transport blocks preferred is one.
4.7.3E.1.2.1 Bit mapping of Type A channel quality indication
In case a type A CQI shall be reported, the CQI values 0 … 255 as defined in [4] are converted from decimal to binary to map them to the channel quality indication bits (0 0 0 0 0 0 0 0) to (1 1 1 1 1 1 1 1), respectively. The channel quality indication bits are cqi0 , cqi1 , cqi2 , cqi3 , cqi4, cqi5, cqi6, cqi7 (where cqi0 is LSB and cqi7 is MSB).
In case the number of transport blocks preferred is one, the CQI values 0 … 30 as defined in [4] are converted from decimal to binary to map them to the channel quality indication bits (1 0 0 0 0) to (1 1 1 1 1), respectively. The information bit pattern (0 0 0 0 0) shall not be used in this release. The channel quality indication bits are cqi0, cqi1, cqi2, cqi3, cqi4 (where cqi0 is LSB and cqi4 is MSB) and (0 0 0) is used for indicating cqi5, cqi6, cqi7 (where cqi5 is LSB and cqi7 is MSB). .
4.7.3E.1.2.2 Bit mapping of Type B channel quality indication
In case a type B CQI shall be reported, the CQI values 0 … 30 as defined in [4] are converted from decimal to binary to map them to the channel quality indication bits (1 0 0 0 0) to (1 1 1 1 1), respectively. The information bit pattern (0 0 0 0 0) shall not be used in this release. The channel quality indication bits are cqi0, cqi1, cqi2, cqi3, cqi4 (where cqi0 is LSB and cqi4 is MSB).
4.7.3E.1.2.3 Bit mapping of number of transport blocks preferred
According to the number of transport blocks preferred definition in [4], the range of possible values is 0 … 3. The number of transport blocks preferred values 0 … 3 as defined in [4] are converted from decimal to binary to map them to the number of transport blocks preferred bits (0 0) to (1 1) respectively. The number of transport blocks preferred bits are ri0 ,ri1 (where ri0 is LSB and ri1 is MSB).
4.7.3E.1.2.4 Bit mapping of precoding control indication
According to the PCI definition in [4], the range of possible PCI values is 0 … 15. The PCI values 0 … 15 as defined in [4] are converted from decimal to binary to map them to the precoding control indication bits (0 0,0,0) to (1 1,1,1) respectively. The precoding control indication bits are pci0 , pci1,, pci2, pci3 (where pci0 is LSB and pci3 is MSB).
4.7.3E.1.2.5 Composite number of transport blocks preferred , precoding control indication and channel quality indication bits
For type A CQI report the composite NTBP/PCI/CQI shall be constructed according to the scheme depicted in Figure 20C.1.
Figure 20C.1: Construction of composite NTBP/PCI/CQI for Type A CQI report
In case a type A CQI shall be reported, the number of transport blocks preferred bits ri0 ,ri1, precoding control indication bits pci0 , pci1, pci2, pci3, and the channel quality indication bits cqi0 , cqi1 , cqi2 , cqi3 , cqi4, cqi5, cqi6, cqi7 are concatenated to the composite number of transport blocks preferred, precoding control indication and channel quality indication bits according to the relation
For type B CQI report the composite PCI/CQI shall be constructed according to the scheme depicted in Figure 20C.2.
Figure 20C.2: Construction of composite NTBP/PCI/CQI for Type B CQI report
In case a type B CQI shall be reported, the precoding control indication bits pci0 , pci1, pci2, pci3, and the channel quality indication bits cqi0 , cqi1 , cqi2 , cqi3 , cqi4 are concatenated to the composite precoding control indication and channel quality indication bits according to the relation
4.7.3E.1.2.6 Channel coding for composite number of transport blocks preferred, precoding control indication and channel quality indication bits
In case a type A CQI needs to be reported, rate 1/2 convolutional coding, as described in Clause 4.2.3.1 is applied to the sequence of bits a0, a1, …, a13, resulting in the sequence of bits d0, d1, …, d43.
Note that the coded sequence lengths result from the termination of K=9 convolutional coding being fully applied.
In case a type B CQI needs to be reported, rate 1/3 convolutional coding, as described in Clause 4.2.3.1 is applied to the sequence of bits a0, a1, …, a8, resulting in the sequence of bits d0, d1, …, d50.
Note that the coded sequence lengths result from the termination of K=9 convolutional coding being fully applied.
4.7.3E.1.2.7 Rate matching for composite number of transport blocks preferred, precoding control indication and channel quality indication bits
In case a type A CQI needs to be reported, from the input sequence d0, d1, …, d43 the bits d0, d2, d41, d43 are punctured to obtain the output sequence b0, b1, …, b39 .
In case a type B CQI needs to be reported, from the input sequence d0, d1, …, d50 the bits d0, d2, d3, d4, d6, d44, d45, d46, d47, d48, d50 are punctured to obtain the output sequence b0, b1, …, b39 .
4.7.3E.2 Channel coding for HS-DPCCH when the UE is configured in MIMO mode with four transmit antennas in any cell and Secondary_Cell_Enabled is 1
Two forms of channel coding are used, one for the composite number of transport blocks preferred (NTBP), precoding control indication (PCI) and channel quality indication (CQI) and another for HARQ-ACK (acknowledgement).
4.7.3E.2.1 Channel coding for the composite HS-DPCCH HARQ-ACK
The HARQ acknowledgement message associated with a cell for which the UE is configured in MIMO mode with four transmit antennas shall be coded to 10 bits as in Table 15C.3B in subclause 4.7.3E.1.1.
The HARQ acknowledgement message associated with a cell for which the UE is configured in MIMO mode shall be coded to 10 bits as in Table 15B in subclause 4.7.3.1.
The HARQ acknowledgement message associated with a cell for which the UE is configured not in MIMO mode and not in MIMO mode with four transmit antennas shall be coded to 10 bits as specified in Table 15 in subclause 4.7.2.
The HARQ acknowledgement messages corresponding to the serving HS-DSCH cell and secondary serving HS-DSCH cell in that order are encoded and concatenated into the same slot according to Figure 20D in clause 4.7.4.1.
4.7.3E.2.2 Channel coding for HS-DPCCH composite number of transport blocks preferred, precoding control indication and channel quality indication
The channel coding for NTBP, PCI and CQI associated with a cell for which the UE is configured in MIMO mode with four transmit antennas is specified in subclause 4.7.3E.1.2.
The channel coding for PCI and CQI associated with a cell for which the UE is configured in MIMO mode is specified in subclause 4.7.3.2.
The channel coding for CQI associated with a cell for which the UE is configured not in MIMO mode and not in MIMO mode with four transmit antennas is specified in subclause 4.7.2.2.
4.7.3E.3 Channel coding for HS-DPCCH when the UE is configured in MIMO mode with four transmit antennas in any cell and Secondary_Cell_Enabled is 2
Two forms of channel coding are used, one for the composite number of transport blocks preferred (NTBP), precoding control indication (PCI) and channel quality indication (CQI) and another for HARQ-ACK (acknowledgement).
4.7.3E.3.1 Channel coding for the composite HS-DPCCH HARQ-ACK
The HARQ acknowledgement message associated with a cell for which the UE is configured in MIMO mode with four transmit antennas shall be coded to 10 bits as in Table 15C.3B in subclause 4.7.3E.1.1.
The HARQ acknowledgement message associated with a cell for which the UE is configured in MIMO mode shall be coded to 10 bits as in Table 15B in subclause 4.7.3.1.
The HARQ acknowledgement message associated with a cell for which the UE is not configured in MIMO mode and not configured in MIMO mode with four transmit antennas shall be coded to 10 bits as specified in Table 15 in subclause 4.7.2.
The HARQ acknowledgement messages corresponding to the serving HS-DSCH cell and 1st secondary serving HS-DSCH cell in that order are encoded and concatenated into the same slot according to Figure 20D in clause 4.7.4.1.
4.7.3E.3.2 Channel coding for HS-DPCCH composite number of transport blocks preferred, precoding control indication and channel quality indication
The channel coding for NTBP, PCI and CQI associated with a cell for which the UE is configured in MIMO mode with four transmit antennas is specified in subclause 4.7.3E.1.2.
The channel coding for PCI and CQI associated with a cell for which the UE is configured in MIMO mode is specified in subclause 4.7.3.2.
The channel coding for PCI and CQI associated with a cell for which the UE is configured not in MIMO mode and not in MIMO mode with four transmit antennas is specified in subclause 4.7.2.2.
4.7.3E.4 Channel coding for HS-DPCCH when the UE is configured in MIMO mode with four transmit antennas in any cell and Secondary_Cell_Enabled is 3
Two forms of channel coding are used, one for the composite number of transport blocks preferred (NTBP), precoding control indication (PCI) and channel quality indication (CQI) and another for HARQ-ACK (acknowledgement).
4.7.3E.4.1 Channel coding for the composite HS-DPCCH HARQ-ACK
The HARQ acknowledgement message associated with a cell for which the UE is configured in MIMO mode with four transmit antennas shall be coded to 10 bits as in Table 15C.3B in subclause 4.7.3E.1.1.
The HARQ acknowledgement message associated with a cell for which the UE is configured in MIMO mode shall be coded to 10 bits as in Table 15B in subclause 4.7.3.1.
The HARQ acknowledgement message associated with a cell for which the UE is configured not in MIMO mode and not in MIMO mode with four transmit antennas shall be coded to 10 bits as specified in Table 15 in subclause 4.7.2.
The HARQ acknowledgement messages corresponding to the serving HS-DSCH cell and 1st secondary serving HS-DSCH cell in that order are encoded and concatenated into the same slot according to Figure 20D in clause 4.7.4.1.
The HARQ acknowledgement messages corresponding to the 2nd secondary serving HS-DSCH cell and the 3rd secondary serving HS-DSCH cell in that order are encoded and concatenated into the same slot according to Figure 20D.1 in clause 4.7.4.1.
4.7.3E.4.2 Channel coding for HS-DPCCH composite number of transport blocks preferred, precoding control indication and channel quality indication
The channel coding for NTBP, PCI and CQI associated with a cell for which the UE is configured in MIMO mode with four transmit antennas is specified in subclause 4.7.3E.1.2.
The channel coding for PCI and CQI associated with a cell for which the UE is configured in MIMO mode is specified in subclause 4.7.3.2.
The channel coding for PCI and CQI associated with a cell for which the UE is configured not in MIMO mode and not in MIMO mode with four transmit antennas is specified in subclause 4.7.2.2.