公开(公告)号：US06574767B2

公开(公告)日：2003-06-03

申请号：US10156453

申请日：2002-05-28

申请人： Mustafa Eroz ,  A. Roger Hammons, Jr.

发明人： Mustafa Eroz ,  A. Roger Hammons, Jr.

IPC分类号： G06F1110

CPC分类号： H03M13/2957 ,  H03M13/036 ,  H03M13/2789 ,  H03M13/2903 ,  H03M13/6362 ,  H03M13/6381 ,  H04L1/0066 ,  H04L1/0069

摘要： A method of providing forward error correction for data services uses a parallel concatenated convolutional code which is a Turbo Code comprising a plurality of eight-state constituent encoders wherein a plurality of data block sizes are used in conjunction with said Turbo Code. A variation uses the method in a cellular radio system. Another variation uses the method in both forward and reverse likes of a cellular radio system.

公开(公告)号：US08527833B2

公开(公告)日：2013-09-03

申请号：US13231474

申请日：2011-09-13

申请人： Rohit Seshadri ,  Mustafa Eroz ,  Lin-Nan Lee

发明人： Rohit Seshadri ,  Mustafa Eroz ,  Lin-Nan Lee

IPC分类号： H03M13/00

CPC分类号： H03M13/2767 ,  H03M13/275 ,  H03M13/276 ,  H03M13/2789

摘要： A parameterized interleaver design process is provided, which optimizes the design for interleavers of any size, and can be completely specified using only a few design parameters. According to the parameterized interleaver design process an interleaver π(i) of a length N is generated. A number of subpermutation masks are defined, and a first intermediate interleaver permutation is partitioned into a number of subgroups, wherein the number of subgroups corresponds with the number of subpermutation masks. Each of the subgroups of the first intermediate interleaver permutation is partitioned into a number of further subgroups, and each of the subpermutation masks is applied to each of the further subgroups of a corresponding subgroup of the first intermediate interleaver permutation, resulting in a corresponding portion of a second intermediate interleaver permutation. The resulting interleaver π(i) is generated based at least in part on the first and second intermediate interleaver permutations.

摘要翻译： 提供了一种参数化的交织器设计过程，其优化了任何尺寸的交织器的设计，并且可以仅使用少量设计参数来完全指定。 根据参数化交织器设计处理，生成长度为N的交织器pi（i）。 定义了多个子鉴别掩码，并且将第一中间交织器置换分割成多个子组，其中子组的数量对应于子鉴别掩码的数量。 第一中间交织器排列的每个子组被划分成多个其他子组，并且每个子质量掩模被应用于第一中间交织器排列的相应子组的其他子组中的每一个，导致相应部分 第二中间交织器排列。 至少部分地基于第一和第二中间交织器排列来生成所产生的交织器pi（i）。

公开(公告)号：US08392793B2

公开(公告)日：2013-03-05

申请号：US12753528

申请日：2010-04-02

申请人： Mustafa Eroz ,  Lin-Nan Lee ,  Feng-Wen Sun

发明人： Mustafa Eroz ,  Lin-Nan Lee ,  Feng-Wen Sun

IPC分类号： H03M13/00

CPC分类号： H03M13/1185 ,  H03M13/1137 ,  H03M13/152 ,  H03M13/2906 ,  H04B7/02 ,  H04L1/005 ,  H04L1/0057 ,  H04L1/0625

摘要： Methods include configuring M parallel accumulation engines, accumulating a first information bit at a first set of specific parity bit addresses using the accumulation engines, increasing a parity bit address for each member of the first set of specific parity bit addresses by a pre-determined offset for each new information bit, accumulating subsequent information bits at parity bit addresses that are offset from the specific parity bit addresses by a pre-determined offset until an M+1 information bit is reached, accumulating the next M information bits at a second set of specific parity bit addresses using the accumulation engines, increasing a parity bit address for each member of the second set of specific parity bit addresses by the pre-determined offset for each new information bit; and repeating accumulating and increasing the addresses until the information bits are exhausted. Related systems are described.

摘要翻译： 方法包括配置M并行累积引擎，使用累积引擎在第一组特定奇偶校验位地址处累积第一信息位，将第一组特定奇偶校验位地址的每个成员的奇偶校验位地址增加预定的偏移量 对于每个新的信息位，在与特定奇偶校验位地址相偏移的奇偶校验位地址处累积后续信息比特，直到达到M + 1个信息比特为止，将下一个M个信息比特累加在第二组 使用累积引擎的特定奇偶校验位地址，增加第二组特定奇偶校验位地址的每个成员的奇偶校验位地址每个新信息比特的预定偏移量; 并重复累积和增加地址直到信息位耗尽。 描述相关系统。

公开(公告)号：US20120221915A1

公开(公告)日：2012-08-30

申请号：US13408953

申请日：2012-02-29

申请人： Mustafa Eroz ,  Feng-Wen Sun ,  Lin-Nan Lee ,  Dan Fraley

发明人： Mustafa Eroz ,  Feng-Wen Sun ,  Lin-Nan Lee ,  Dan Fraley

IPC分类号： H03M13/05 ,  G06F11/10

CPC分类号： H03M13/1137 ,  H03M13/1165 ,  H03M13/1515 ,  H03M13/152 ,  H03M13/19 ,  H03M13/255 ,  H03M13/2906 ,  H03M13/356 ,  H03M13/6505 ,  H04L1/005 ,  H04L1/0057 ,  H04L1/007

摘要： An approach for reliably communicating over a satellite in support of a communication service including, for example, as direct broadcast satellite and data service, is disclosed. An input message is encoded, yielding a structured Low Density Parity Check (LDPC) coded message. The coded message is modulated according to a high order modulation scheme that has a signal constellation representing more than two symbols per signaling point—e.g., 8-PSK (Phase Shift Keying) and 16-QAM (Quadrature Amplitude Modulation). The system includes a transmitter configured to propagate the modulated signal over the satellite. The above approach is particularly applicable to bandwidth constrained communication systems requiring high data rates.

摘要翻译： 公开了一种用于通过卫星可靠地通信以支持包括例如直接广播卫星和数据服务在内的通信服务的方法。 编码输入消息，产生结构化的低密度奇偶校验（LDPC）编码消息。 编码消息根据高阶调制方案进行调制，该高阶调制方案具有每个信令点（例如8-PSK（相移键控）和16-QAM（正交幅度调制））多于两个符号的信号星座。 该系统包括被配置成通过卫星传播调制信号的发射机。 上述方法特别适用于需要高数据速率的带宽受限通信系统。

公开(公告)号：US08181085B2

公开(公告)日：2012-05-15

申请号：US12943613

申请日：2010-11-10

申请人： Mustafa Eroz ,  Feng-Wen Sun ,  Lin-Nan Lee

发明人： Mustafa Eroz ,  Feng-Wen Sun ,  Lin-Nan Lee

IPC分类号： H03M13/00

CPC分类号： H03M13/255 ,  H03M13/1134 ,  H03M13/1165 ,  H03M13/118 ,  H03M13/152 ,  H03M13/2906

摘要： An approach is provided for encoding short frame length Low Density Parity Check (LDPC) codes. An encoder generates a LDPC code having an outer Bose Chaudhuri Hocquenghem (BCH) code. Structure is imposed on the LDPC codes by restricting portion part of the parity check matrix to be lower triangular and/or satisfying other requirements such that the communication between bit nodes and check nodes of the decoder is simplified. Further, a cyclic redundancy check (CRC) encoder is supplied to encode the input signal according to a CRC code. This approach has particular application in digital video broadcast services over satellite.

摘要翻译： 提供了一种用于编码短帧长度低密度奇偶校验（LDPC）码的方法。 编码器生成具有外部Bose Chaudhuri Hocquenghem（BCH）码的LDPC码。 通过将奇偶校验矩阵的部分部分限制为三角形和/或满足其他要求，使得解码器的位节点和校验节点之间的通信被简化，对LDPC码施加结构。 此外，循环冗余校验（CRC）编码器被提供以根据CRC码对输入信号进行编码。 这种方法在卫星数字视频广播业务中具有特殊应用。

公开(公告)号：US08140946B2

公开(公告)日：2012-03-20

申请号：US12017219

申请日：2008-01-21

申请人： Mustafa Eroz ,  Lin-Nan Lee

发明人： Mustafa Eroz ,  Lin-Nan Lee

IPC分类号： H03M13/03

CPC分类号： H03M13/2957 ,  H03M13/2903

摘要： An approach is provided for encoding information bits to output a coded signal using turbo code encoding with a low code rate.

摘要翻译： 提供了一种用于对信息比特进行编码以使用低码率的turbo码编码输出编码信号的方法。

公开(公告)号：US08028224B2

公开(公告)日：2011-09-27

申请号：US12706686

申请日：2010-02-16

申请人： Mustafa Eroz ,  Feng-Wen Sun ,  Lin-Nan Lee

发明人： Mustafa Eroz ,  Feng-Wen Sun ,  Lin-Nan Lee

IPC分类号： G06F11/00

CPC分类号： H04L1/0065 ,  H03M13/1137 ,  H03M13/116 ,  H03M13/118 ,  H03M13/152 ,  H03M13/255 ,  H03M13/2906 ,  H04L1/0057 ,  H04L1/0071

摘要： An approach is provided for generating Low Density Parity Check (LDPC) codes. An LDPC encoder generates a short LDPC code by shortening longer mother codes. The short LDPC code has an outer Bose Chaudhuri Hocquenghem (BCH) code. According to another aspect, for an LDPC code with code rate of ⅗ utilizing 8-PSK (Phase Shift Keying) modulation, an interleaver provides for interleaving bits of the output LDPC code by serially writing data associated with the LDPC code column-wise into a table and reading the data row-wise from right to left. The above approach has particular application in digital video broadcast services over satellite.

摘要翻译： 提供了一种用于生成低密度奇偶校验（LDPC）码的方法。 LDPC编码器通过缩短较长的母码产生短的LDPC码。 短LDPC码具有外部Bose Chaudhuri Hocquenghem（BCH）码。 根据另一方面，对于利用8-PSK（相移键控）调制的码率为an的LDPC码，交织器通过串行地将与LDPC码相关联的数据串行地写入到 从右到左逐行阅读数据。 上述方法在卫星数字视频广播业务中具有特殊应用。

公开(公告)号：US20110060958A1

公开(公告)日：2011-03-10

申请号：US12943613

申请日：2010-11-10

申请人： Mustafa Eroz ,  Feng-Wen Sun ,  Lin-Nan Lee

发明人： Mustafa Eroz ,  Feng-Wen Sun ,  Lin-Nan Lee

IPC分类号： H03M13/05 ,  G06F11/10

CPC分类号： H03M13/255 ,  H03M13/1134 ,  H03M13/1165 ,  H03M13/118 ,  H03M13/152 ,  H03M13/2906

摘要： An approach is provided for encoding short frame length Low Density Parity Check (LDPC) codes. An encoder generates a LDPC code having an outer Bose Chaudhuri Hocquenghem (BCH) code. Structure is imposed on the LDPC codes by restricting portion part of the parity check matrix to be lower triangular and/or satisfying other requirements such that the communication between bit nodes and check nodes of the decoder is simplified. Further, a cyclic redundancy check (CRC) encoder is supplied to encode the input signal according to a CRC code. This approach has particular application in digital video broadcast services over satellite.

摘要翻译： 提供了一种用于编码短帧长度低密度奇偶校验（LDPC）码的方法。 编码器生成具有外部Bose Chaudhuri Hocquenghem（BCH）码的LDPC码。 通过将奇偶校验矩阵的部分部分限制为三角形和/或满足其他要求，使得解码器的位节点和校验节点之间的通信被简化，对LDPC码施加结构。 此外，循环冗余校验（CRC）编码器被提供以根据CRC码对输入信号进行编码。 这种方法在卫星数字视频广播业务中具有特殊应用。

公开(公告)号：US07856586B2

公开(公告)日：2010-12-21

申请号：US12252216

申请日：2008-10-15

申请人： Mustafa Eroz ,  Feng-Wen Sun ,  Lin-Nan Lee

发明人： Mustafa Eroz ,  Feng-Wen Sun ,  Lin-Nan Lee

IPC分类号： H03M13/00

CPC分类号： H03M13/255 ,  H03M13/1134 ,  H03M13/1165 ,  H03M13/118 ,  H03M13/152 ,  H03M13/2906

摘要： An approach is provided for encoding short frame length Low Density Parity Check (LDPC) codes. An encoder generates a LDPC code having an outer Bose Chaudhuri Hocquenghem (BCH) code. Structure is imposed on the LDPC codes by restricting portion part of the parity check matrix to be lower triangular and/or satisfying other requirements such that the communication between bit nodes and check nodes of the decoder is simplified. Further, a cyclic redundancy check (CRC) encoder is supplied to encode the input signal according to a CRC code. This approach has particular application in digital video broadcast services over satellite.

摘要翻译： 提供了一种用于编码短帧长度低密度奇偶校验（LDPC）码的方法。 编码器生成具有外部Bose Chaudhuri Hocquenghem（BCH）码的LDPC码。 通过将奇偶校验矩阵的部分部分限制为三角形和/或满足其他要求，使得解码器的位节点和校验节点之间的通信被简化，对LDPC码施加结构。 此外，循环冗余校验（CRC）编码器被提供以根据CRC码对输入信号进行编码。 这种方法在卫星数字视频广播业务中具有特殊应用。

公开(公告)号：US20100107032A1

公开(公告)日：2010-04-29

申请号：US12498968

申请日：2009-07-07

申请人： Mustafa Eroz ,  Feng-Wen Sun ,  Lin-Nan Lee

发明人： Mustafa Eroz ,  Feng-Wen Sun ,  Lin-Nan Lee

IPC分类号： H03M13/13 ,  G06F11/10

CPC分类号： H03M13/13 ,  H03M13/1137 ,  H03M13/1165 ,  H03M13/1515 ,  H03M13/152 ,  H03M13/255 ,  H03M13/2906 ,  H03M13/2927 ,  H03M13/6306 ,  H04L1/0041 ,  H04L1/0057 ,  H04L1/0071 ,  H04L27/186 ,  H04L27/2053

摘要： An approach is provided for bit labeling of a signal constellation. A transmitter generates encoded signals using, according to one embodiment, a structured parity check matrix of a Low Density Parity Check (LDPC) code. The transmitter includes an encoder for transforming an input message into a codeword represented by a plurality of set of bits. The transmitter includes logic for mapping non-sequentially (e.g., interleaving) one set of bits into a higher order constellation (Quadrature Phase Shift Keying (QPSK), 8-PSK, 16-APSK (Amplitude Phase Shift Keying), 32-APSK, etc.), wherein a symbol of the higher order constellation corresponding to the one set of bits is output based on the mapping.

摘要翻译： 提供了一种用于信号星座的位标记的方法。 根据一个实施例，发射机使用低密度奇偶校验（LDPC）码的结构奇偶校验矩阵来生成编码信号。 发射机包括用于将输入消息变换成由多个位组表示的码字的编码器。 发射机包括用于将一组比特的非顺序（例如，交织）映射成更高阶的星座（正交相移键控（QPSK），8-PSK，16-APSK（振幅相移键控），32-APSK， 等等），其中基于该映射输出对应于该一组比特的较高阶星座的符号。