JP4191133B2 - Wireless communication system, split mode TFCI decoding processing apparatus, and decoding processing method used therefor - Google Patents

Description

  The present invention relates to a wireless communication system, a split mode TFCI decoding processing apparatus, and a decoding processing method used therefor, and more particularly, to a decoding processing method for a TFCI codeword transmitted in split mode TFCI (Transport-Format-Combination Indicator).

  In 3.5 generation mobile phone services, HSDPA (High Speed Downlink Packet Access) is applied.

  This HSDPA generates the split mode TFCI code of the TFCI value of the associated dedicated physical channel (A-DPCH) and the physical downlink shared channel (PDSCH) for the downlink and the TFCI code of the physical downlink shared channel (PDSCH). Are multiplexed and transmitted from a receiver to a dedicated physical control channel (DPCCH) (for example, see Non-Patent Document 1).

  In such applied services, mobile phone terminals are required to be reduced in hardware scale by further downsizing.

“4.3.4 Operation of Transport-Format-Combination Indicator (TFCI) in Split Mode” [3GPP (3rd Generation Partnership Project) TS25.212 V4.6.0 (2002-09)

  In the conventional mobile phone service described above, as shown in FIG. 13, the soft decision split mode TFCI decoding unit 30 includes a split mode TFCI codeword separation unit 301, bi-orthogonal code correlators 302 and 303, and a peak correlation value. It comprises a determination unit 304 and a split mode TFCI determination unit 305. In each of the bi-orthogonal code correlators 302 and 303, it is necessary to prepare 16 types of 16-input correlators as shown in FIG. The concern is that the hardware scale is large and the power consumption is large.

  Accordingly, an object of the present invention is to solve the above-described problems, and to achieve split mode TFCI value decoding with the smallest possible hardware scale without increasing the hardware scale and power consumption. Another object of the present invention is to provide a split mode TFCI decoding processing apparatus and a decoding processing method used for them.

A wireless communication system according to the present invention includes a transmission processing apparatus that multiplexes and transmits a generated split-mode TFCI (Transport-Format-Combination Indicator) codeword, and the received TFCI codeword for each row of a 16th-order Hadamard matrix or A wireless communication system including a decoding processing device for decoding by calculating a correlation with a sequence component,
The decoding processing device uses a butterfly calculator that calculates a correlation with each row or column component of the 16th-order Hadamard matrix based on the TFCI codeword in a time division manner, and performs a plurality of decompositions equivalent to the 16th-order Hadamard matrix. A time-division fast Hadamard transform means for calculating the correlation of each matrix ;
The time-division fast Hadamard transform means includes a memory buffer for storing the TFCI codeword and the calculation result of the butterfly calculator as needed, and an address for extracting an address pointer of data to be input / output from the memory buffer to the butterfly calculator Pointer extraction means .

The split-mode TFCI decoding processing apparatus according to the present invention converts a TFCI codeword received from a transmission processing apparatus that multiplexes and transmits the generated split-mode TFCI (Transport-Format-Combination Indicator) codeword into a 16th order Hadamard matrix. A split mode TFCI decoding processing device for decoding by calculating a correlation with each row or column component,
Calculate the correlation of each of a plurality of decomposition matrices equivalent to the 16th-order Hadamard matrix by using a butterfly operator for calculating the correlation with each row or column component of the 16th-order Hadamard matrix based on the TFCI codeword. comprising a split fast Hadamard transform means when,
The time-division fast Hadamard transform means includes a memory buffer for storing the TFCI codeword and the calculation result of the butterfly calculator as needed, and an address for extracting an address pointer of data to be input / output from the memory buffer to the butterfly calculator Pointer extraction means .

The split-mode TFCI decoding processing method according to the present invention includes a transmission processing apparatus that multiplexes and generates a generated split-mode TFCI (Transport-Format-Combination Indicator) codeword, and a received 16th-order Hadamard matrix. A split mode TFCI decoding processing method used in a wireless communication system including a decoding processing device for decoding by calculating a correlation with each row or column component of
The decoding processor uses a butterfly operator that calculates a correlation with each row or column component of the 16th order Hadamard matrix based on the TFCI codeword in a time division manner, and a plurality of decompositions equivalent to the 16th order Hadamard matrix Decoding a TFCI codeword using time-division fast Hadamard transform means for calculating the correlation of each matrix ;
The time-division high-speed Hadamard transform means extracts an address pointer of data to be input / output to the butterfly calculator from a memory buffer that stores the TFCI code word and the calculation result of the butterfly calculator as needed. ing.

  That is, the split mode TFCI decoding processing apparatus of the present invention is an invention relating to a decoding processing method for a TFCI codeword transmitted in split mode TFCI described in Non-Patent Document 1 above.

  As described in Non-Patent Document 1 above, a radio base station apparatus that implements HSDPA (High Speed Data Packet Access) service includes a TFCI value of an associated dedicated physical channel (A-DPCH: Associated Dedicated Physical Channel). TFCI code of split mode by multiple mapping of TFCI value of Physical Downlink Shared Channel (PDSCH) from Split Mode TFCI Code Generator to Dedicated Physical Control Channel (DPCCH: Dedicated Physical Control Channel) A word is being sent.

  In the present invention, the hardware scale and power consumption are reduced by using a time-division high-speed Hadamard transform unit instead of the bi-orthogonal correlator. Further, the present invention proposes a hardware configuration as small as possible for split mode TFCI decoding in a mobile terminal.

  In the split mode TFCI decoding processing apparatus of the present invention, the split mode TFCI decoding unit of the mobile terminal includes a time division high-speed Hadamard conversion unit, and the time division high-speed Hadamard conversion unit includes a memory buffer, a butterfly calculator, an address pointer extraction unit, The apparatus for decoding a TFCI codeword in split mode can be realized with small hardware.

  Therefore, in the split mode TFCI decoding processing apparatus of the present invention, the hardware is reduced by using the time division fast Hadamard transform unit in the soft decision split mode TFCI decoding unit of FIG. The time-division high-speed Hadamard transform unit for reducing the size of the hardware uses a memory buffer, a butterfly calculator, and an address pointer extractor 119 to decode the TFCI value in the split mode as small as possible. This is possible.

  Thus, in the split mode TFCI decoding processing apparatus of the present invention, the memory buffer and the butterfly calculator are shared, and the correlation of the 16th order Hadamard matrix is obtained by one memory buffer, one butterfly calculator, and the address pointer extraction unit. By calculating, it is possible to configure the time-division high-speed Hadamard transformer with a minimum hardware scale.

  Further, in the split mode TFCI decoding processing device of the present invention, since the calculation result of the butterfly calculator is stored in the memory buffer, the output from the memory buffer is written to the input of the next butterfly calculator. By performing efficient processing, processing can be performed relatively quickly even if the hardware scale is small.

  With the configuration and operation as described below, the present invention can realize the decoding of the TFCI value in the split mode with the smallest possible hardware scale without increasing the hardware scale and power consumption. An effect is obtained.

  Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing a configuration of a wireless communication system according to an embodiment of the present invention. In FIG. 1, a wireless communication system according to an embodiment of the present invention includes a split mode TFCI (Transport-Format-Combination Indicator) codeword transmitter 1 and a split mode TFCI decoder 2 connected through a wireless communication channel 100. ing.

  The split mode TFCI codeword transmission unit 1 includes a split mode TFCI code generator 11 and a dedicated physical control channel mapping 12. The split mode TFCI decoding unit 2 includes a split mode TFCI codeword detection unit 21 and a soft decision. The split mode TFCI decoding unit 22 is configured.

  FIG. 2A is a block diagram showing a configuration of the split mode TFCI code generator 11 of FIG. 1, and FIG. 2B is a table showing codes used in the bi-orthogonal code unit of FIG. 2A. .

  2A, the split mode TFCI code generator 11 inputs a TFCI value (0 to 31) 5 bits of an A-DPCH (Associated Dedicated Physical Channel) and inputs a 16-bit TFCI code word. Bi-orthogonal code generator 111 for generating and TFCI value (0 to 31) 5 bits of PDSCH (Physical Downlink Shared Channel) to generate 16-bit TFCI codeword 112.

  That is, the split-mode TFCI code generator 11 receives the TFCI value of 5 bits of A-DPCH and the TFCI value of 5 bits of PDSCH, and generates 16-bit TFCI code words by the bi-orthogonal code units 111 and 112, respectively. . The dedicated physical control channel mapping 12 multiplexes the TFCI code word generated by the split mode TFCI code generator 11.

In the split mode TFCI code generator 11, the bi-orthogonal code generator 111 receives 5 bits of the TFCI value of the A-DPCH and generates a 16-bit TFCI code word (b ₀ , b ₂ ,..., B ₃₀ ). Then, the bi-orthogonal code unit 112 receives 5 bits of the TFCI value of the PDSCH and generates a 16-bit TFCI code word (b ₁ , b ₃ ,..., B ₃₁ ).

  FIG. 3 is a block diagram showing a configuration of the soft decision split mode TFCI decoding unit 22 of FIG. In FIG. 3, the soft decision split mode TFCI decoding unit 22 includes a split mode TFCI codeword separation unit 221, a time division fast Hadamard transform unit 222, a peak correlation value determination unit 223, and a split mode TFCI determination unit 224. ing.

  In the split mode TFCI decoding unit 2, the split mode TFCI codeword detection unit 21 detects the TFCI bits multiplexed by the dedicated physical control channel mapping 12.

  In the soft decision split mode TFCI decoding unit 22, the split mode TFCI codeword separation unit 221 separates the TFCI codeword of A-DPCH and the TFCI codeword of PDSCH. The time division fast Hadamard transform unit 222 uses the correlation value of the TFCI codeword of A-DPCH and the TFCI codeword of PDSCH separated by the split mode TFCI codeword separation unit 221 for time division using a butterfly calculator (not shown). To calculate.

  The peak correlation value determination unit 223 determines the peak index of the correlation value calculated by the time division fast Hadamard transform unit 222 and the sign of the peak, and the split mode TFCI determination unit 224 determines the peak index from the peak correlation value determination unit 223. The TFCI value of A-DPCH and the TFCI value of PDSCH are determined based on whether the peak is positive or negative.

  FIG. 4 is a block diagram showing a configuration of the time division fast Hadamard transform unit 222 of FIG. In FIG. 4, the time division high-speed Hadamard transform unit 222 includes a memory buffer A 2221, a memory buffer B 2222, a butterfly calculator A 2223, a butterfly calculator B 2224, and an address pointer extractor 2225.

  The butterfly operator A2223 calculates the correlation with each row or column component of the 16th order Hadamard matrix based on the received TFCI codeword of the A-DPCH, and the butterfly operator B2224 calculates the 16th order Hadamard matrix based on the received TFCI codeword of the PDSCH. Compute the correlation with each row or column component of.

  The memory buffer A 2221 of the time-division high-speed Hadamard transform unit 222 stores the received TFCI code word of A-DPCH separated by the split mode TFCI code word separation unit 221 and the output result calculated by the butterfly calculator A 2223 as needed. The memory buffer B 2222 stores the PDSCH received TFCI code word and the output result calculated by the butterfly calculator B 2224 as needed.

  The address pointer extraction unit 2225 uses the butterfly calculator A2223 and the butterfly calculator B2224 for time division, respectively, so that the address pointers (butterfly calculator A2223 and butterfly calculator A2223 and The address pointer of data input / output to / from the butterfly calculator B2224 is extracted.

  5 is a diagram illustrating a calculation formula of the address pointer extraction unit 2225 in FIG. 4, FIG. 6 is a diagram illustrating a 16th-order Hadamard matrix H, and FIG. 7 is a diagram illustrating a decomposition matrix G1 of the 16th-order Hadamard matrix. 8 is a diagram showing a decomposition matrix G2 of the 16th-order Hadamard matrix, FIG. 9 is a diagram showing a decomposition matrix G3 of the 16th-order Hadamard matrix, and FIG. 10 is a diagram showing a decomposition matrix G4 of the 16th-order Hadamard matrix. is there.

  11 is a diagram showing a G1, G2, G3, G4 matrix correlator equivalent to the 16th order Hadamard matrix H, and FIG. 12 is a block diagram showing the configuration of the butterfly computing unit A2223 and the butterfly computing unit B2224 in FIG. It is. The operation of the split mode TFCI decoding unit 2 will be described with reference to FIGS.

  The processing of the split mode TFCI code generator 11 is described in Non-Patent Document 1 described above. As shown in FIG. 2A, the TFCI value of A-DPCH and the TFCI value of PDSCH are (16, 5). ) Input to the bi-orthogonal code units 111 and 112, and generate a TFCI code word for each 16 bits with the codes shown in the table shown in FIG.

The (16,5) bi-orthogonal code units 111 and 112 indicate the TFCI values in binary numbers, and the 16 bits M _{i, 0} , M _{i, 1} and M _{i, 2 in the} table shown in FIG. It is generated by exclusive OR of M _{i, 3} and M _{i, 4} . Here, if the generated TFCI codeword is “1” for “0” and “−1” for “1”, the 16th order Hadamard matrix H (see FIG. 6) and its 16th order Hadamard matrix Since the code of the row or column component is obtained by inverting the sign of H, the TFCI code word is decoded by calculating the correlation of the received TFCI code word with each row or column component of the 16th-order Hadamard matrix H. be able to.

  In the conventional split TFCI decoding method, as shown in FIG. 13, the bi-orthogonal code correlators 302 and 303 are used to calculate the correlation of the 16th-order Hadamard matrix H as it is, but this bi-orthogonal code correlation is used. In the case of the units 302 and 303, as shown in FIG. 14, 16 input adders / subtractors 302-1 to 3021-16 are required to be 16 types corresponding to the number of rows of the 16th-order Hadamard matrix H, and the hardware scale is large. turn into.

  Therefore, in this embodiment, as a matrix equivalent to the 16th order Hadamard matrix H, a G1 matrix (see FIG. 7), a G2 matrix (see FIG. 8), a G3 matrix (see FIG. 9), and a G4 matrix (see FIG. 10). Is used. FIG. 11 shows correlators of these G1, G2, G3, and G4 matrices.

  For example, when calculating the correlation with each row or column component of the 16th-order Hadamard matrix using the butterfly calculator A2223 in time division based on the received TFCI codeword of the A-DPCH, in FIG. Correlation) is calculated from the input 201-1 in the arithmetic processing 202-1 by the butterfly calculator A2223 and becomes the output 201-2, and the correlation of the G2 matrix (see FIG. 8) is calculated from the input 201-2 to the butterfly calculator. It is calculated by the arithmetic processing 202-2 by A2223 and becomes the output 201-3.

  Further, the correlation of the G3 matrix (see FIG. 9) is calculated by the calculation process 202-3 by the butterfly calculator A2223 from the input 201-3 to become the output 201-4, and the correlation of the G4 matrix (see FIG. 10) 201-4 is calculated by the calculation processing 202-4 by the butterfly calculator A2223 and becomes the output 201-5.

  In this embodiment, the time-division high-speed Hadamard converter sharing the arithmetic processing 202-1 to 202-4 by the butterfly arithmetic unit A2223 and the inputs and outputs 202-1 to 202-5 to the memory buffer A2221 for storing the correlation results. 222 is used. Note that the same processing as described above is performed when calculating the correlation with each row or column component of the 16th-order Hadamard matrix using the butterfly calculator B2224 in time division based on the PDSCH received TFCI codeword.

  As shown in FIG. 12, the butterfly computing unit A 2223 and the butterfly computing unit B 2224 are composed of an adder / subtracter with two inputs and two outputs. As shown in FIG. 11, the correlation results of the G1 matrix (see FIG. 7), G2 matrix (see FIG. 8), G3 matrix (see FIG. 9), and G4 matrix (see FIG. 10) are stored. By calculating the positions of the memory buffer A 2221 and the memory buffer B 2222 for performing the butterfly calculation by the address pointer extraction unit 2225, one memory buffer A 2221 and one butterfly calculator A 2223 are assigned to one TFCI code word in the split mode. Or only one memory buffer B2222 and one butterfly computing unit B2224.

This address pointer extraction unit 2225 indicates the position of the butterfly calculator configuration of the correlation (k = 1 to 4) of each matrix in FIG. 11, and uses this in time division (t = 0 to 7, k = 1 to 4). In this case, the relationship shown in the table shown in FIG. 5 is obtained. When this table is expressed by a function of t and k, as shown in FIG.
P1 = div (t, 2 ^k−1 ) × 2 ^k−1 + t
P2 = div (t, 2 ^k−1 ) × 2 ^k−1 + t + 2 ^k−1
It becomes the expression. Here, div (a, b) is a function representing a quotient obtained by dividing a by b.

  Since the butterfly calculator A2223 and the butterfly calculator B2224 are configured to store the same input and output positions, the inputs and outputs 201-1 to 201-5 of the memory buffer A2221 and the memory buffer B2222 can be shared.

  In addition, while writing the butterfly calculation result output to the memory buffer using a configuration in which the input and output are stored at the same position, the data for the next butterfly calculation processing is input, so that the processing can be performed efficiently. It can be carried out. By using this address pointer extraction unit 2225, calculation processing 202-1 to 202-4 and memory by the butterfly calculator A2223 and the butterfly calculator B2224 necessary for correlating the 16th-order Hadamard matrix H (see FIG. 6) and the memory The inputs / outputs 201-1 to 201-5 of the buffer A 2221 and the memory buffer B 2222 can be shared.

  Therefore, in this embodiment, a correlation value is calculated only by having one memory buffer A 2221 and memory buffer B 2222, and one butterfly calculator A2223 and butterfly calculator B2224 for one TFCI code word. Can do. Therefore, in this embodiment, the hardware scale can be greatly reduced. In this embodiment, a butterfly calculator A2223 and a butterfly calculator B2224 that perform calculations based on the TFCI value of A-DPCH and the TFCI value of PDSCH are provided, but these processes are further performed by one butterfly calculation. It is also possible to perform the operation using a time division unit. In this case, one memory buffer is sufficient.

  In the peak correlation value determination unit 223 and the split mode TFCI determination unit 224, the correlation result of the TFCI codeword of the A-DPCH and the correlation result obtained from the time division fast Hadamard transformer 222 with respect to the TFCI codeword of the PDSCH The maximum value of the peak (absolute value) is detected, and the transmitted TFCI value is calculated based on the position of the memory buffer where the maximum value is detected and the positive / negative of the peak.

  As described above, in this embodiment, the memory buffer A 2221 and the memory buffer B 2222 are shared by the butterfly computing unit A 2223 and the butterfly computing unit B 2224, and the correlation of the 16th-order Hadamard matrix H (see FIG. 6) is obtained with one memory. Since the buffer A 2221 and the memory buffer B 2222, one butterfly calculator A 2223 and butterfly calculator B 2224, and the address pointer extractor 2225 can be configured, the time-division high-speed Hadamard converter 11 has a minimum hardware scale. Can be configured.

  Therefore, in this embodiment, the calculation result of the butterfly computing unit is stored in the memory buffer, and simultaneously the output from the memory buffer is written to the input of the next butterfly computing unit, thereby reducing the hardware scale. However, it can be processed relatively quickly. In this case, however, the memory buffer must have an input port and an output port.

  In the present embodiment, a specific hardware reduction method has been described in the split mode TFCI codeword decoding unit 2, but higher-speed processing is possible by using a configuration having a plurality of butterfly computing units. . This is because a plurality of butterfly computing units necessary for each matrix are shared in a time-sharing manner, so that a hardware configuration capable of using a plurality can flexibly increase the speed.

  Further, in the present embodiment, since the formula that is the calculation formula of the address pointer extraction unit 2225 can be applied even in the case of an n-order Hadamard matrix, the correlation calculation of the n-th (n is a power of 2) -order Hadamard matrix is performed. In this case, the same hardware configuration can be realized.

It is a block diagram which shows the structure of the radio | wireless communications system by one Example of this invention. (A) is a block diagram showing the configuration of the split mode TFCI code generator of FIG. 1, and (b) is a table showing codes used in the bi-orthogonal code unit of (a). FIG. 3 is a block diagram showing a configuration of a soft decision split mode TFCI decoding unit in FIG. 1. It is a block diagram which shows the structure of the time division high-speed Hadamard transformation part of FIG. FIG. 5 is a diagram illustrating a calculation formula of an address pointer extraction unit in FIG. 4. It is a figure which shows 16th order Hadamard matrix H. It is a figure which shows the decomposition | disassembly matrix G1 of a 16th order Hadamard matrix. It is a figure which shows the decomposition | disassembly matrix G2 of a 16th order Hadamard matrix. It is a figure which shows the decomposition | disassembly matrix G3 of a 16th order Hadamard matrix. It is a figure which shows the decomposition | disassembly matrix G4 of a 16th order Hadamard matrix. It is a figure which shows the G1, G2, G3, and G4 matrix correlator equivalent to the 16th order Hadamard matrix H. FIG. 5 is a block diagram illustrating a configuration of a butterfly calculator A and a butterfly calculator B in FIG. 4. It is a block diagram which shows the structure of the conventional soft decision split mode TFCI decoding part. It is a figure which shows the conventional bi-orthogonal Code correlator.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Split mode TFCI codeword transmission part 2 Split mode TFCI decoding part 11 Split mode TFCI code generator 12 Dedicated physical control channel mapping 21 Split mode TFCI codeword detection part 22 Soft decision split mode TFCI decoding part 100 Wireless communication path 221 Split mode TFCI codeword separation unit 222 Time division fast Hadamard transform unit 223 Peak correlation value determination unit 224 Split mode TFCI determination unit 2221 Memory buffer A
2222 Memory buffer B
2223 Butterfly Calculator A
2224 Butterfly calculator B
2225 Address pointer extractor

Claims (15)

Calculates the correlation between the generated split mode TFCI (Transport-Format-Combination Indicator) codeword and transmits the received TFCI codeword to each row or column component of the 16th-order Hadamard matrix A wireless communication system including a decoding processing device for decoding,
The decoding processing device uses a butterfly calculator that calculates a correlation with each row or column component of the 16th-order Hadamard matrix based on the TFCI codeword in a time division manner, and performs a plurality of decompositions equivalent to the 16th-order Hadamard matrix. have a split fast Hadamard transform means when calculating the correlation matrix, respectively,
The time-division fast Hadamard transform means includes a memory buffer for storing the TFCI codeword and the calculation result of the butterfly calculator as needed, and an address for extracting an address pointer of data to be input / output from the memory buffer to the butterfly calculator A wireless communication system comprising pointer extraction means . The address pointer extraction means stores the calculation result of the butterfly computing unit in the memory buffer and simultaneously writes the output of the memory buffer to the input of the next butterfly computing unit. Item 2. A wireless communication system according to Item 1 . Calculates the correlation between the generated split mode TFCI (Transport-Format-Combination Indicator) codeword and transmits the received TFCI codeword to each row or column component of the 16th-order Hadamard matrix A wireless communication system including a decoding processing device for decoding,
The decoding processing device uses a butterfly calculator that calculates a correlation with each row or column component of the 16th-order Hadamard matrix based on the TFCI codeword in a time division manner, and performs a plurality of decompositions equivalent to the 16th-order Hadamard matrix. Having time-division fast Hadamard transform means for calculating the correlation of each matrix;
The time-division fast Hadamard transform means includes first and second butterfly calculators for calculating a correlation with each row or column component of the 16th-order Hadamard matrix based on the TFCI codeword, the TFCI codeword, and the first TFCI codeword. First and second memory buffers for storing the calculation results of the first and second butterfly calculators as needed, and the first and second butterfly calculators for use in time division, respectively. A wireless communication system , comprising: address pointer extracting means for extracting address pointers of data to be input / output to / from the first and second butterfly computing units from two memory buffers. The address pointer extraction means stores the calculation result of the first butterfly calculator in the first memory buffer, and simultaneously uses the output of the first memory buffer as an input of the first butterfly calculator. And simultaneously writing the calculation result of the second butterfly calculator in the second memory buffer, and simultaneously using the output of the second memory buffer as the input of the second butterfly calculator. 4. The wireless communication system according to claim 3 , wherein writing is performed. The first butterfly calculator and the first memory buffer are used for correlation calculation of TFCI values of A-DPCH (Associated Dedicated Physical Channel),
The second butterfly operation unit and said second memory buffer, PDSCH (Physical Downlink Shared Channel) according to claim 3 or claim 4 wireless communication system wherein a used for correlation calculation of the TFCI value. TFCI codeword received from a transmission processing device that multiplexes and transmits the generated split mode TFCI (Transport-Format-Combination Indicator) codeword, and calculates a correlation with each row or column component of the 16th order Hadamard matrix A split mode TFCI decoding processing device for decoding with
Calculate the correlation of each of a plurality of decomposition matrices equivalent to the 16th-order Hadamard matrix by using a butterfly operator for calculating the correlation with each row or column component of the 16th-order Hadamard matrix based on the TFCI codeword. have a split fast Hadamard transform means when you,
The time-division fast Hadamard transform means includes a memory buffer for storing the TFCI codeword and the calculation result of the butterfly calculator as needed, and an address for extracting an address pointer of data to be input / output from the memory buffer to the butterfly calculator A split mode TFCI decoding processing apparatus comprising: pointer extraction means . The address pointer extraction means stores the calculation result of the butterfly computing unit in the memory buffer and simultaneously writes the output of the memory buffer to the input of the next butterfly computing unit. Item 7. The split mode TFCI decoding processing device according to Item 6 . TFCI codeword received from a transmission processing device that multiplexes and transmits the generated split mode TFCI (Transport-Format-Combination Indicator) codeword, and calculates a correlation with each row or column component of the 16th order Hadamard matrix A split mode TFCI decoding processing device for decoding with
Calculate the correlation of each of a plurality of decomposition matrices equivalent to the 16th-order Hadamard matrix by using a butterfly operator for calculating the correlation with each row or column component of the 16th-order Hadamard matrix based on the TFCI codeword. Having time-division fast Hadamard transform means,
The time-division fast Hadamard transform means includes first and second butterfly calculators for calculating a correlation with each row or column component of the 16th-order Hadamard matrix based on the TFCI codeword, the TFCI codeword, and the first TFCI codeword. First and second memory buffers for storing the calculation results of the first and second butterfly calculators as needed, and the first and second butterfly calculators for use in time division, respectively. A split mode TFCI decoding processing apparatus comprising: address pointer extracting means for extracting address pointers of data to be input / output to / from the first and second butterfly computing units from two memory buffers. The address pointer extraction means stores the calculation result of the first butterfly calculator in the first memory buffer, and simultaneously uses the output of the first memory buffer as an input of the first butterfly calculator. And simultaneously writing the calculation result of the second butterfly calculator in the second memory buffer, and simultaneously using the output of the second memory buffer as the input of the second butterfly calculator. 9. The split mode TFCI decoding processing apparatus according to claim 8 , wherein writing is performed. The first butterfly calculator and the first memory buffer are used for correlation calculation of TFCI values of A-DPCH (Associated Dedicated Physical Channel),
10. The split mode TFCI decoding according to claim 8 or 9, wherein the second butterfly calculator and the second memory buffer are used for correlation calculation of a TFCI value of PDSCH (Physical Downlink Shared Channel). Processing equipment. Calculates the correlation between the generated split mode TFCI (Transport-Format-Combination Indicator) codeword and transmits the received TFCI codeword to each row or column component of the 16th-order Hadamard matrix A split mode TFCI decoding processing method used in a wireless communication system including a decoding processing device for decoding
The decoding processor uses a butterfly operator that calculates a correlation with each row or column component of the 16th order Hadamard matrix based on the TFCI codeword in a time division manner, and a plurality of decompositions equivalent to the 16th order Hadamard matrix Decoding a TFCI codeword using time-division fast Hadamard transform means for calculating the correlation of each matrix ;
The time-division high-speed Hadamard transform means extracts an address pointer of data to be input / output to the butterfly calculator from a memory buffer that stores the TFCI code word and the calculation result of the butterfly calculator as needed. A split mode TFCI decoding processing method characterized by the above. The address pointer extracting means stores the calculation result of the butterfly computing unit in the memory buffer and simultaneously writes the output of the memory buffer to the input of the next butterfly computing unit. Item 12. The split mode TFCI decoding processing method according to Item 11 . Calculates the correlation between the generated split mode TFCI (Transport-Format-Combination Indicator) codeword and transmits the received TFCI codeword to each row or column component of the 16th-order Hadamard matrix A split mode TFCI decoding processing method used in a wireless communication system including a decoding processing device for decoding
The decoding processor uses a butterfly operator that calculates a correlation with each row or column component of the 16th order Hadamard matrix based on the TFCI codeword in a time division manner, and a plurality of decompositions equivalent to the 16th order Hadamard matrix Decoding a TFCI codeword using time-division fast Hadamard transform means for calculating the correlation of each matrix;
The time-division fast Hadamard transform means calculates a correlation with each row or column component of the 16th-order Hadamard matrix based on the TFCI codeword by first and second butterfly calculators, and the TFCI codeword and the The calculation results of the first and second butterfly computing units are stored in the first and second memory buffers as needed, and the first and second butterfly computing units are used for time division, respectively. A split mode TFCI decoding processing method, wherein an address pointer extraction unit extracts an address pointer of data input / output to / from the first and second butterfly calculators from a second memory buffer. The address pointer extraction means stores the calculation result of the first butterfly calculator in the first memory buffer, and at the same time, the output of the first memory buffer is used as the input of the first butterfly calculator. And simultaneously writing the calculation result of the second butterfly calculator in the second memory buffer, and simultaneously using the output of the second memory buffer as the input of the second butterfly calculator. 14. The split mode TFCI decoding processing method according to claim 13 , wherein the writing is performed. The first butterfly calculator and the first memory buffer are used for correlation calculation of a TFCI value of an A-DPCH (Associated Dedicated Physical Channel),
15. The split mode TFCI decoding according to claim 13 or 14, wherein the second butterfly calculator and the second memory buffer are used for correlation calculation of a TFCI value of PDSCH (Physical Downlink Shared Channel). Processing method.

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