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1. 发明授权

US09009559B2 Method and apparatus for wireless data transmission subject to periodic signal blockages 有权
标题翻译：用于无线数据传输的方法和装置，受到周期性信号阻塞
公开(公告)号：US09009559B2
公开(公告)日：2015-04-14
申请号：US13422534
申请日：2012-03-16
申请人： Lin-Nan Lee , Mustafa Eroz , Liping Chen , Satyajit Roy
发明人： Lin-Nan Lee , Mustafa Eroz , Liping Chen , Satyajit Roy
IPC分类号： H03M13/00 , H04L1/00 , H03M13/27 , H03M13/29 , H03M13/25
CPC分类号： H04L1/0041 , H03M13/25 , H03M13/27 , H03M13/29 , H03M13/2936 , H03M13/6561 , H04B7/18506 , H04L1/0009 , H04L1/004 , H04L1/0042 , H04L1/0057 , H04L1/0061 , H04L1/0071
摘要： A system and method for data transmissions in a wireless communications system, which accommodates for a periodic blockage of the transmission signal, is provided. A data stream is segmented into packets of a predetermined fixed-size for a burst-mode transmission over a channel of the communications system, wherein the transmission is subject to a periodic blockage. A forward error correction outer code is then applied to the packets of the data stream for recovery of packets subjected to the periodic blockage, and a unique word is added to each packet for acquisition of frequency, carrier phase and symbol timing of the respective packet. The packets of the data stream are interleaved based on an interleaver of a depth based at least in part on a ratio of a blockage free duration between two consecutive blockages of the periodic blockage to a duration of each blockage of the periodic blockage.
摘要翻译：提供了一种用于无线通信系统中的数据传输的系统和方法，其适应于传输信号的周期性阻塞。数据流被分割成预定固定大小的分组，用于通信系统的信道上的突发模式传输，其中传输受到周期性的阻塞。然后将前向纠错外码应用于数据流的分组，用于恢复遭受周期性阻塞的分组，并且向每个分组添加唯一的字以获取相应分组的频率，载波相位和符号定时。数据流的数据包基于至少部分地基于周期性阻塞的两个连续阻塞之间的无阻塞持续时间与周期性阻塞的每次阻塞的持续时间的比率，基于深度的交织器进行交织。

2. 发明申请

US20130246884A1 METHOD AND APPARATUS FOR WIRELESS DATA TRANSMISSION SUBJECT TO PERIODIC SIGNAL BLOCKAGES 有权
标题翻译：用于无线数据传输的方法和装置，包括周期性信号阻塞
公开(公告)号：US20130246884A1
公开(公告)日：2013-09-19
申请号：US13422534
申请日：2012-03-16
申请人： Lin-Nan Lee , Mustafa Eroz , Liping Chen , Satyajit Roy
发明人： Lin-Nan Lee , Mustafa Eroz , Liping Chen , Satyajit Roy
IPC分类号： H03M13/29 , G06F11/10
CPC分类号： H04L1/0041 , H03M13/25 , H03M13/27 , H03M13/29 , H03M13/2936 , H03M13/6561 , H04B7/18506 , H04L1/0009 , H04L1/004 , H04L1/0042 , H04L1/0057 , H04L1/0061 , H04L1/0071
摘要： A system and method for data transmissions in a wireless communications system, which accommodates for a periodic blockage of the transmission signal, is provided. A data stream is segmented into packets of a predetermined fixed-size for a burst-mode transmission over a channel of the communications system, wherein the transmission is subject to a periodic blockage. A forward error correction outer code is then applied to the packets of the data stream for recovery of packets subjected to the periodic blockage, and a unique word is added to each packet for acquisition of frequency, carrier phase and symbol timing of the respective packet. The packets of the data stream are interleaved based on an interleaver of a depth based at least in part on a ratio of a blockage free duration between two consecutive blockages of the periodic blockage to a duration of each blockage of the periodic blockage.
摘要翻译：提供了一种用于无线通信系统中的数据传输的系统和方法，其适应于传输信号的周期性阻塞。数据流被分割成预定固定大小的分组，用于通信系统的信道上的突发模式传输，其中传输受到周期性的阻塞。然后将前向纠错外码应用于数据流的分组，用于恢复遭受周期性阻塞的分组，并且向每个分组添加唯一的字以获取相应分组的频率，载波相位和符号定时。数据流的数据包基于至少部分地基于周期性阻塞的两个连续阻塞之间的无阻塞持续时间与周期性阻塞的每次阻塞的持续时间的比率，基于深度的交织器进行交织。

3. 发明授权

US08527833B2 Method and apparatus for a parameterized interleaver design process 有权
标题翻译：用于参数化交织器设计过程的方法和装置
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）。

4. 发明授权

US08392793B2 Code design and implementation improvements for low density parity check codes for multiple-input multiple-output channels 有权
标题翻译：用于多输入多输出通道的低密度奇偶校验码的代码设计和实现改进
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。

5. 发明申请

US20120221915A1 SATELLITE COMMUNICATION SYSTEM UTILIZING LOW DENSITY PARITY CHECK CODES 有权
标题翻译：卫星通信系统利用低密度奇偶校验码
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。

6. 发明授权

US08181085B2 Method and system for providing short block length low density parity check (LDPC) codes in support of broadband satellite applications 有权
标题翻译：提供支持宽带卫星应用的短块长度低密度奇偶校验（LDPC）码的方法和系统
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。

7. 发明授权

US08140946B2 Method and apparatus for generating low rate turbo codes 有权
标题翻译：用于产生低速率turbo码的方法和装置
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。

8. 发明授权

US08028224B2 Method and system for providing short block length low density parity check (LDPC) codes 有权
标题翻译：提供短块长度低密度奇偶校验（LDPC）码的方法和系统
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。

9. 发明申请

US20110060958A1 METHOD AND SYSTEM FOR PROVIDING SHORT BLOCK LENGTH LOW DENSITY PARITY CHECK (LDPC) CODES IN SUPPORT OF BROADBAND SATELLITE APPLICATIONS 有权
标题翻译：用于在宽带卫星应用支持下提供短块长度低密度奇偶校验（LDPC）码的方法和系统
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。

10. 发明授权

US07856586B2 Method and system for providing short block length low density parity check (LDPC) codes in support of broadband satellite applications 有权
标题翻译：提供支持宽带卫星应用的短块长度低密度奇偶校验（LDPC）码的方法和系统
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。

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