Sony Corporation

Saturn Licensing LLC

Sony Group Corporation

Sony Semiconductor Solutions Corporation

Makiko Yamamoto

Yuji Shinohara

Ryoji Ikegaya

Takashi Yokokawa

Satoshi Okada

Lachlan Bruce Michael

Naoki Yoshimochi

Yuichi Hirayama

Lui Sakai

Nabil Sven Loghin Muhammad

Yasushi Fujinami

Kenichi Nakanishi

Nabil Sven Muhammad

Naohiro Adachi

Hideaki Okubo

Toshiyuki Hiroi

Samuel Asanbeng Atungsiri

Samuel Asangbeng Atungsiri

Lothar Stadelmeier

Akira Nakamura

Keiichi Tsutsui

Nabil Sven Loghin

Atsushi Kikuchi

Hideyuki Matsumoto

Toshiyuki Miyauchi

Matthew Paul Athol Taylor

John Nicholas Wilson

Joerg Robert

Tatsuo Shinbashi

Muhammad Nabil Sven Loghin

Misa Nakane

Mathew Paul Athol Taylor

Takafumi Maehara

Muhammad Nabil Loghin

Yuji Sinohara

In group-wise interleaving, interleaving of an LDPC code having a code length N of 64800 bits and an encoding rate r of 5/15 is performed in a unit of a bit group of 360 bits. In group-wise deinterleaving, an arrangement of the LDPC code that has undergone group-wise interleaving is returned to an original arrangement. The technology can be applied to a case of transmitting data using the LDPC code. The data processing device and data processing method can ensure excellent communication quality in data transmission using an LDPC code.

Data processing device and data processing method

The present technology relates to a data processing device and a data processing method which can ensure high communication quality in data transmission using LDPC codes, in group-wise interleaving, an LDPC code having a code length N of 64800 bits and a coding rate r of 13/15 is interleaved in a unit of a bit group of 360 bit. In group-wise deinterleaving, a sequence of bit groups of the LDPC code which has been subjected to the group-wise interleaving is returned to an original sequence, the present technology can be applied to, for example, a case in which data transmission is performed using LDPC codes.

The present technology relates to a data processing device and a data processing method, which are capable of securing excellent communication quality in data transmission using an LDPC code. In group-wise interleave, an LDPC code in which a code length N is 16200 bits and an encoding rate r is 6/15, 8/15, or 10/15 is interleaved in units of bit groups of 360 bits. In group-wise deinterleave, a sequence of the LDPC code that has undergone the group-wise interleave is restored to an original sequence. For example, the present technology can be applied to a technique of performing data transmission using an LDPC code.

The present technology relates to a data processing device and a data processing method which can ensure high communication quality in data transmission using LDPC codes. In group-wise interleaving, an LDPC code having a code length N of 64800 bits and a coding rate r of 13/15 is interleaved in a unit of a bit group of 360 bits. In group-wise deinterleaving, a sequence of bit groups of the LDPC code which has been subjected to the group-wise interleaving is returned to an original sequence. The present technology can be applied to, for example, a case in which data transmission is performed using LDPC codes.

A transmission device, a transmission method, a reception device, and a reception method for securing good communication quality in data transmission using an LDPC code. The LDPC coding is performed using a parity check matrix with the code length N of 17280 bits and the coding rate r of 13/16 or 14/16. The LDPC code includes information bits and parity bits, and the parity check matrix includes an information matrix portion corresponding to the information bits and a parity matrix portion corresponding to the parity bits. The information matrix portion is represented by a parity check matrix initial value table, and the parity check matrix initial value table is a table representing positions of elements of 1 of the information matrix for every 360 columns.

Transmission device, transmission method, reception device, and reception method

The present technology relates to a data processing device and a data processing method which can ensure high communication quality in data transmission using LDPC codes. In group-wise interleaving, an LDPC code having a code length N of 64800 bits and a coding rate r of 11/15 is interleaved in a unit of a bit group of 360 bits. In group-wise deinterleaving, a sequence of bit groups of the LDPC code which has been subjected to the group-wise interleaving is returned to an original sequence. The present technology can be applied to, for example, a case in which data transmission is performed using LDPC codes.

The present technology relates to a transmission method and a reception device for securing favorable communication quality in data transmission using an LDPC code. In group-wise interleaving, the LDPC code with a code length N of 17280 bits is interleaved in units of 360-bit bit groups 0 to 47. In group-wise deinterleaving, a sequence of the LDPC code after group-wise interleaving is returned to an original sequence. The present technology can be applied, for example, in a case of performing data transmission using an LDPC code, and the like.

Transmission method and reception device

The present technology relates to a data processing device and a data processing method, which are capable of securing excellent communication quality in data transmission using an LDPC code. In group-wise interleave, an LDPC code in which a code length N is 16200 bits and an encoding rate r is 10/15 or 12/15 is interleaved in units of bit groups of 360 bits. In group-wise deinterleave, a sequence of the LDPC code that has undergone the group-wise interleave is restored to an original sequence. For example, the present technology can be applied to a technique of performing data transmission using an LDPC code.

The present technology relates to a transmission device, a transmission method, a reception device, and a reception method for securing good communication quality in data transmission using an LDPC code. The LDPC coding is performed on the basis of the parity check matrix of the LDPC code with the code length N of 17280 bits and the coding rate r of 7/16 or 8/16. The LDPC code includes information bits and parity bits, and the parity check matrix includes an information matrix portion corresponding to the information bits and a parity matrix portion corresponding to the parity bits. The information matrix portion is represented by a parity check matrix initial value table, and the parity check matrix initial value table is a table representing positions of elements of 1 of the information matrix for every 360 columns. The present technology can be applied to, for example, data transmission using an LDPC code.

The present technology relates to a transmission device, a transmission method, a reception device, and a reception method for securing good communication quality in data transmission using an LDPC code. LDPC coding for information bits with an information length K=N&#xd7;r is performed on the basis of an extended parity check matrix having rows and columns extended by a predetermined puncture length L with respect to a parity check matrix of an LDPC code with a code length N of 69120 bits and a coding rate r of 14/16, so that an extended LDPC code having parity bits with a parity length M=N+L&#x2212;K is generated. A head of the information bits of the extended LDPC code is punctured by L, so that a punctured LDPC code with the code length N of 69120 bits and the coding rate r is generated. The extended parity check matrix includes an A matrix of M1 rows and K columns expressed by a predetermined value M1 and the information length K=N&#xd7;r, a B matrix of M1 rows and M1 columns, a Z matrix of M1 rows and N+L&#x2212;K&#x2212;M1 columns, a C matrix of N+L&#x2212;K&#x2212;M1 rows and K+M1 columns, and a D matrix of N+L&#x2212;K&#x2212;M1 rows and N+L&#x2212;K&#x2212;M1 columns. The present technology can be applied to data transmission and the like using an LDPC code.

The present technology relates to a transmission device, a transmission method, a reception device, and a reception method for securing good communication quality in data transmission using an LDPC code. The LDPC coding is performed on the basis of the parity check matrix of the LDPC code with the code length N of 17280 bits and the coding rate r of 5/16, 6/16, or 7/16. The parity check matrix includes an A matrix of M1 rows and K columns expressed by a predetermined value M1 and an information length K=N&#xd7;r of the LDPC code, a B matrix of M1 rows and M1 columns having a step structure, a Z matrix being a zero matrix of M1 rows and N&#x2212;K&#x2212;M1 columns, a C matrix of N&#x2212;K&#x2212;M1 rows and K+M1 columns, and a D matrix being an identity matrix of N&#x2212;K&#x2212;M1 rows and N&#x2212;K&#x2212;M1 columns. The A matrix and the C matrix are represented by a parity check matrix initial value table, and the parity check matrix initial value table is a table representing positions of elements of 1 of the A matrix and the C matrix for every 360 columns. The present technology can be applied to, for example, data transmission using an LDPC code.

A data processing apparatus including a frequency interleaves that includes memory configured to write and read data, and an address generator configured to produce a write address and a read address, and that writes the data to the memory in accordance with the write address and reads out the data from the memory in accordance with the read address, thereby carrying out frequency interleaving. The address generator is configured to produce a first pseudo random bit stream, produce a second pseudo random bit stream, alternately produce a bit as 0 and a bit as 1 as an additional bit added as a most significant bit of the first pseudo random bit stream, and produce the write address or the read address by obtaining an exclusive-OR between the first pseudo random bit stream having the additional bit added as the most significant bit and the second pseudo random bit stream.

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Tokyo, Japan

Makiko Yamamoto