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1. 发明授权

US08798200B2 Constellation mapping method 有权
标题翻译：星座映射法
公开(公告)号：US08798200B2
公开(公告)日：2014-08-05
申请号：US13202929
申请日：2009-07-03
申请人： Jin Xu , Jun Xu , Zhifeng Yuan , Qianzi Xu , Xianwei Gong , Bo Sun , Huiying Fang
发明人： Jin Xu , Jun Xu , Zhifeng Yuan , Qianzi Xu , Xianwei Gong , Bo Sun , Huiying Fang
IPC分类号： H04L27/36 , H04L1/00 , H04L27/34 , H04L1/18
CPC分类号： H04L27/3405 , H04L1/0066 , H04L1/0071 , H04L1/1893
摘要： The present invention provides a constellation mapping method, and the method includes: flipping a plurality of bits in each modulation symbol unit to be mapped in part of or all of modulation symbol units to be mapped of a bit sequence to be mapped; and mapping each flipped modulation symbol unit to be mapped as a modulation symbol in a constellation. By means of the present invention, the phenomenon that consecutive bits have the same reliability can be effectively avoided by changing unevenness of reliability distribution of the consecutive bits, and at the same time, the link performance can be improved.
摘要翻译：本发明提供一种星座映射方法，该方法包括：在要映射的比特序列映射的调制符号单元的一部分或全部中，对每个调制符号单元中的多个比特进行翻转，并映射要映射成星座图中的调制符号的每个翻转的调制符号单元。通过本发明，可以通过改变连续位的可靠性分布的不均匀性来有效地避免连续位具有相同可靠性的现象，同时可提高链路性能。

2. 发明申请

US20120020435A1 Constellation Mapping Method 有权
标题翻译：星座映射方法
公开(公告)号：US20120020435A1
公开(公告)日：2012-01-26
申请号：US13202929
申请日：2009-07-03
申请人： Jin Xu , Jun Xu , Zhifeng Yuan , Qianzi Xu , Xianwei Gong , Bo Sun , Huiying Fang
发明人： Jin Xu , Jun Xu , Zhifeng Yuan , Qianzi Xu , Xianwei Gong , Bo Sun , Huiying Fang
IPC分类号： H04L27/36
CPC分类号： H04L27/3405 , H04L1/0066 , H04L1/0071 , H04L1/1893
摘要： The present invention provides a constellation mapping method, and the method includes: flipping a plurality of bits in each modulation symbol unit to be mapped in part of or all of modulation symbol units to be mapped of a bit sequence to be mapped; and mapping each flipped modulation symbol unit to be mapped as a modulation symbol in a constellation. By means of the present invention, the phenomenon that consecutive bits have the same reliability can be effectively avoided by changing unevenness of reliability distribution of the consecutive bits, and at the same time, the link performance can be improved.
摘要翻译：本发明提供一种星座映射方法，该方法包括：在要映射的比特序列映射的调制符号单元的一部分或全部中，对每个调制符号单元中的多个比特进行翻转，并映射要映射成星座图中的调制符号的每个翻转的调制符号单元。通过本发明，可以通过改变连续位的可靠性分布的不均匀性来有效地避免连续位具有相同可靠性的现象，同时可提高链路性能。

3. 发明授权

US08868988B2 Rate matching method and device 有权
标题翻译：速率匹配方法和设备
公开(公告)号：US08868988B2
公开(公告)日：2014-10-21
申请号：US13260045
申请日：2009-11-16
申请人： Zhili Sun , Jun Xu , Jin Xu , Zhifeng Yuan , Qianzi Xu , Xianwei Gong , Bo Sun , Huiying Fang
发明人： Zhili Sun , Jun Xu , Jin Xu , Zhifeng Yuan , Qianzi Xu , Xianwei Gong , Bo Sun , Huiying Fang
IPC分类号： G06F11/00
CPC分类号： H04L1/1819 , H04L1/0066 , H04L1/0068 , H04L1/0071
摘要： The present invention discloses a rate matching method and device. The method includes that: an information bit sequence is coded and interleaved to obtain a mother code codeword with a length NFB—Buffer; and bits are selected from the mother code codeword to generate a hybrid automatic repeat request (HARQ) subpacket for current transmission. By means of the present invention, the effect of covering the whole mother code area can be achieved as much as possible, and the performance of the HARQ multiple retransmission link can be enhanced.
摘要翻译：本发明公开了一种速率匹配方法和装置。该方法包括：对信息比特序列进行编码和交织以获得长度为NFB-Buffer的母码码字; 并且从母码码字中选择比特以产生用于当前传输的混合自动重传请求（HARQ）子分组。通过本发明，可以尽可能地实现覆盖整个母码区域的效果，并且可以提高HARQ多重传输链路的性能。

4. 发明申请

US20120110406A1 RATE MATCHING METHOD AND DEVICE 有权
标题翻译：速率匹配方法和装置
公开(公告)号：US20120110406A1
公开(公告)日：2012-05-03
申请号：US13260045
申请日：2009-11-16
申请人： Zhili Sun , Jun Xu , Jin Xu , Zhifeng Yuan , Qianzi Xu , Xianwei Gong , Bo Sun , Huiying Fang
发明人： Zhili Sun , Jun Xu , Jin Xu , Zhifeng Yuan , Qianzi Xu , Xianwei Gong , Bo Sun , Huiying Fang
IPC分类号： H04L1/18 , G06F11/14
CPC分类号： H04L1/1819 , H04L1/0066 , H04L1/0068 , H04L1/0071
摘要： The present invention discloses a rate matching method and device. The method includes that: an information bit sequence is coded and interleaved to obtain a mother code codeword with a length NFB—Buffer; and bits are selected from the mother code codeword to generate a hybrid automatic repeat request (HARQ) subpacket for current transmission. By means of the present invention, the effect of covering the whole mother code area can be achieved as much as possible, and the performance of the HARQ multiple retransmission link can be enhanced.
摘要翻译：本发明公开了一种速率匹配方法和装置。该方法包括：对信息比特序列进行编码和交织以获得长度为NFB-Buffer的母码码字; 并且从母码码字中选择比特以产生用于当前传输的混合自动重传请求（HARQ）子分组。通过本发明，可以尽可能地实现覆盖整个母码区域的效果，并且可以提高HARQ多重传输链路的性能。

5. 发明授权

US08458571B2 Data transmission method and equipment 有权
标题翻译：数据传输方式和设备
公开(公告)号：US08458571B2
公开(公告)日：2013-06-04
申请号：US12812091
申请日：2008-04-30
申请人： Jin Xu , Yuanli Fang , Zhifeng Yuan , Song Li , Jun Xu , Liujun Hu
发明人： Jin Xu , Yuanli Fang , Zhifeng Yuan , Song Li , Jun Xu , Liujun Hu
IPC分类号： H03M13/00
CPC分类号： H04L1/0057 , H04L1/0052 , H04L1/0083
摘要： The present invention discloses a data transmission method and apparatus. The method comprises: segmenting data to be transmitted into information file segments with a length of Tb bits; performing forward error correction (FEC) coding for Tb information bit sequences composed of bits in same positions in a plurality of continuous information file segments to generate Tb check bit sequences, putting each bit of the check bit sequences in the same position in the check file segments as the corresponding information bit sequences; and transmitting each of the information file segments and check file segments according to their order; the number of bits contained in the information bit sequences being less than or equal to the maximum length of Kmax bits of the FEC-coded information bit sequences.
摘要翻译：本发明公开了一种数据传输方法和装置。该方法包括：将要发送的数据分割成具有Tb比特长度的信息文件段; 对由多个连续信息文件段中的相同位置的位构成的Tb信息比特序列执行前向纠错（FEC）编码，以产生Tb校验比特序列，将校验比特序列的每个比特放在校验文件中的相同位置段作为相应的信息位序列; 并根据其顺序发送每个信息文件段和检查文件段; 包含在信息比特序列中的比特数小于或等于FEC编码的信息比特序列的最大比特的最大长度。

6. 发明申请

US20100257427A1 Coding method, coding device, decoding method and decoding device for low density generator matrix code 有权
标题翻译：编码方法，编码装置，低密度发生器矩阵码的解码方法和解码装置
公开(公告)号：US20100257427A1
公开(公告)日：2010-10-07
申请号：US12746181
申请日：2008-02-21
申请人： Jin Xu , Jun Xu , Zhifeng Yuan , Yuanli Fang , Song Li , Liujun Hu
发明人： Jin Xu , Jun Xu , Zhifeng Yuan , Yuanli Fang , Song Li , Liujun Hu
IPC分类号： H03M13/05 , G06F11/10
CPC分类号： H03M13/116 , H03M13/118 , H03M13/6362 , H03M13/6516
摘要： The present invention discloses a coding method, a coding device, a decoding method and a decoding device for low density generator matrix codes. Wherein the coding method includes: constructing the mother code set of the low density generator matrix code using P low density generator matrix codes of different code lengths at a code rate R0, wherein the mother code set of the low density generator matrix code has a uniform basic matrix Gbuniform, R 0 = k b n b , where kb is the row number of the basic matrix and nb is the column number of the basic matrix; obtaining the length L of an intermediate variable according to the relationship between the length K of the information bit sequence to be coded in the mother code set of the low density generator matrix code and the length L of the intermediate variable; obtaining an expansion factor zk for processing the basic matrix using the length L of the intermediate variable and the row number kb of the basic matrix, and obtaining a generator matrix Gldgc, by modifying and expanding the basic matrix using the expansion factor zk; and coding the information bit sequence to be coded using a matrix Gldgc(1:L,1:N+L−K) comprised of L rows and the first N+L−K columns of the generator matrix.
摘要翻译：本发明公开了一种用于低密度发生器矩阵码的编码方法，编码装置，解码方法和解码装置。其编码方法包括：以码率R0，利用不同码长的P个低密度发生器矩阵码构造低密度发生器矩阵码的母码组，其中低密度发生器矩阵码的母码组具有均匀基本矩阵Gbuniform，R 0 = kbnb，其中kb是基本矩阵的行号，nb是基本矩阵的列数; 根据低密度发生器矩阵码的母码组中的要编码的信息比特序列的长度K与中间变量的长度L之间的关系，获得中间变量的长度L; 通过使用中间变量的长度L和基本矩阵的行数kb来获得用于处理基本矩阵的扩展因子zk，并且通过使用扩展因子zk修改和扩展基本矩阵来获得生成矩阵Gldgc; 并使用由L行构成的矩阵Gldgc（1：L，1：N + L-K）对发生器矩阵的第一N + L-K列进行编码的信息位序列进行编码。

7. 发明授权

US08301961B2 Decoding method for low density generator matrix code 有权
标题翻译：低密度发电机矩阵码的解码方法
公开(公告)号：US08301961B2
公开(公告)日：2012-10-30
申请号：US12747936
申请日：2008-04-30
申请人： Zhifeng Yuan , Jun Xu , Jin Xu
发明人： Zhifeng Yuan , Jun Xu , Jin Xu
IPC分类号： H03M13/00
CPC分类号： H03M13/1111 , H03M13/1102 , H03M13/373 , H04L1/0057
摘要： The present invention provides a method for decoding a low density generator matrix code (LDGC), applied for decoding transmitted original information bits encoded in LDGC code. The method comprises the following steps: A: deleting a part erased by a channel in a received code word sequence R filled by a known bit sequence to obtain an erased code word sequence Re, and deleting the rows corresponding to the erased part from a transposed matrix GIdgct of a generator matrix of the LDGC to obtain the erased generator matrix Ge; B: permuting columns of Ge such that an M-order square matrix with an element in the 0th row and 0th column being a vertex is a triangular matrix to obtain the permuted generator matrix Gf; and C: calculating the original information bits using Gf and Re.
摘要翻译：本发明提供一种解码低密度发生器矩阵码（LDGC）的方法，该方法应用于解码以LDGC码编码的发送的原始信息比特。该方法包括以下步骤：A：删除由已知比特序列填充的接收码字序列R中的信道擦除的部分，以获得被擦除的码字序列Re，并从转置的序列中删除对应于被擦除部分的行 LDGC的发生器矩阵的矩阵GIdgct以获得被擦除的发生器矩阵Ge; B：排列Ge的列，使得具有第0行和第0列中的元素作为顶点的M阶方阵是三角矩阵，以获得置换的发生矩阵Gf; 和C：使用Gf和Re计算原始信息位。

8. 发明授权

US08286063B2 Decoding method and device for Reed-Solomon code 失效
标题翻译： Reed-Solomon码的解码方法和装置
公开(公告)号：US08286063B2
公开(公告)日：2012-10-09
申请号：US12988643
申请日：2008-08-25
申请人： Jin Xu , Jun Xu , Zhifeng Yuan , Liujun Hu
发明人： Jin Xu , Jun Xu , Zhifeng Yuan , Liujun Hu
IPC分类号： H03M13/00
CPC分类号： H04L1/0071 , H03M13/15 , H03M13/27 , H04L1/0057
摘要： The present invention provides a decoding method and device for Reed-Solomon (RS) codes. The method includes the following steps: A: filling data to be decoded in a byte interleaver by column in turn; B: performing cyclic shift to data in a check region of the byte interleaver by row and/or by column, so as to make the data of each row in the check region become check data in sequence of data of corresponding row in an information region of the byte interleaver; C: performing RS decoding by row method, and writing information data of each row obtained after decoding into the corresponding row in the information region of the byte interleaver in turn; and D: reading business data of the decoded information data from the information region of the byte interleaver by column. The method and device of the present invention achieve the best interleaving effect.
摘要翻译：本发明提供了一种用于里德 - 所罗门（RS）码的解码方法和装置。该方法包括以下步骤：A：按列依次填充要在字节交织器中解码的数据; B：通过行和/或列对字节交织器的检查区域中的数据进行循环移位，以使检查区域中的每行的数据按照信息区域中的相应行的数据顺序成为检查数据的字节交织器; C：通过行方法执行RS解码，并且将解码后获得的每行的信息数据依次写入字节交织器的信息区域中的对应行; 并且D：从字节交织器的信息区域中逐列读取解码信息数据的业务数据。本发明的方法和装置实现了最佳的交织效果。

9. 发明申请

US20100281332A1 ENCODING METHOD AND DEVICE FOR LOW DENSITY GENERATOR MATRIX CODES 有权
标题翻译：低密度发生器矩阵编码的编码方法和装置
公开(公告)号：US20100281332A1
公开(公告)日：2010-11-04
申请号：US12810832
申请日：2008-06-12
申请人： Jun Xu , Song Li , Jin Xu , Zhifeng Yuan , Yuanli Fang , Xiangbiao Yan , Liujun Hu
发明人： Jun Xu , Song Li , Jin Xu , Zhifeng Yuan , Yuanli Fang , Xiangbiao Yan , Liujun Hu
IPC分类号： H03M13/05 , G06F11/10
CPC分类号： H03M13/11 , H03M13/3761
摘要： The present invention discloses an encoding method and device for Low Density Generator Matrix Codes (LDGC). Wherein, the method comprises: construct an LDGC mother code set using a plurality of LDGC with code rate R0 and different code lengths, wherein the LDGC mother code set has a uniform base matrix Gbuniform={(gi, jb)uniform}kb×nb; obtain length L of an intermediate variable according to a relationship between length K of an information bit sequence to be encoded in the LDGC mother code set and length L of the intermediate variable; obtain an expanding factor z for processing the base matrix using the length of the intermediate variable and the number of rows in the base matrix; process the base matrix using the expanding factor to obtain a binary generator matrix Gtmp, the front L rows and front L columns of which compose a triangular matrix; modify the binary generator matrix to obtain a modified binary generator matrix; take a matrix Gldgc composed of L rows and the front N+L−K columns of the modified binary generator matrix as a generator matrix of the information bit sequence to encode the information bit sequence.
摘要翻译：本发明公开了一种低密度发生器矩阵码（LDGC）的编码方法和装置。其中，该方法包括：使用多个LDGC构建LDGC母码集，码率为R0，码长不同，其中，LDGC母码组具有均匀的基本矩阵Gbuniform = {（gi，jb）uniform} kb×nb ; 根据LDGC母码组中要编码的信息比特序列的长度K与中间变量的长度L之间的关系，获得中间变量的长度L; 使用中间变量的长度和基本矩阵中的行数来获得用于处理基本矩阵的扩展因子z; 使用扩展因子处理基本矩阵以获得二进制生成矩阵Gtmp，其前L行和前L列组成三角矩阵; 修改二进制生成矩阵以获得修改后的二进制生成矩阵; 将由L行组成的矩阵Gldgc和修改后的二进制生成器矩阵的前N + L-K列作为信息比特序列的生成矩阵来编码信息比特序列。

10. 发明申请

US20100269010A1 Encoding Method, Encoding Device, Decoding Method and Decoding Device for Low Density Generator Matrix Codes 有权
标题翻译：编码方法，编码装置，低密度发生器矩阵码的解码方法和解码装置
公开(公告)号：US20100269010A1
公开(公告)日：2010-10-21
申请号：US12746756
申请日：2008-04-16
申请人： Jin Xu , Jun Xu , Zhifeng Yuan , Yuanli Fang , Song Li , Liujun Hu
发明人： Jin Xu , Jun Xu , Zhifeng Yuan , Yuanli Fang , Song Li , Liujun Hu
IPC分类号： H03M13/05 , G06F11/10
CPC分类号： H03M13/116 , H03M13/118 , H03M13/6362 , H03M13/6516
摘要： An encoding method, encoding device, decoding method and decoding device for low density generator matrix codes (LDGC) are disclosed. Wherein, the encoding method comprises: construct an LDGC mother code set using P LDGC with code rate R0 and different code lengths, wherein the LDGC mother code set has a uniform basic matrix Gbuniform wherein, R 0 = k b n b , kb denotes the number of rows and nb denotes the number of columns in the basic matrix; obtain length L of an intermediate variant according to length K of an information bit sequence to be encoded in the LDGC mother code set; modify and expand the basic matrix to obtain a generator matrix Gldgc using the length L of the intermediate variant and the number kb of rows in the basic matrix; and encode the information bit sequence to be encoded using a matrix Gldgc (1:L,1:N+L−K) composed of L rows and the front N+L−K columns of the generator matrix, wherein N denotes the length of the encoded information.
摘要翻译：公开了一种用于低密度发生器矩阵码（LDGC）的编码方法，编码装置，解码方法和解码装置。其编码方法包括：使用代码率R0和不同代码长度的P LDGC构建LDGC母码集，其中LDGC母码组具有均匀的基本矩阵，其中，R 0 = kbnb，kb表示行数而nb表示基本矩阵中的列数; 根据要编码在LDGC母码组中的信息比特序列的长度K获得中间变体的长度L; 修改和扩展基本矩阵，以使用中间变体的长度L和基本矩阵中的行的数量kb来获得生成矩阵Gldgc; 并使用由L行构成的矩阵Gldgc（1：L，1：N + L-K）对生成矩阵的前N + L-K列进行编码的信息比特序列进行编码，其中，N表示编码信息。

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