公开(公告)号：US20110283159A1

公开(公告)日：2011-11-17

申请号：US13111191

申请日：2011-05-19

申请人： Jinhong YUAN ,  Jun Ning ,  Yue Liu ,  Xi Yan ,  Guangjian Wang ,  Yanxing Zeng ,  Weiguang Liang

发明人： Jinhong YUAN ,  Jun Ning ,  Yue Liu ,  Xi Yan ,  Guangjian Wang ,  Yanxing Zeng ,  Weiguang Liang

IPC分类号： H03M13/05 ,  G06F11/10

CPC分类号： H03M13/6516 ,  H03M13/116

摘要： A method for encoding or decoding an LDPC code with variable code lengths is provided in an embodiment of the present invention. The method includes: obtaining a base exponential matrix of an LDPC code and grouping code lengths during construction of the base exponential matrix; correcting the base exponential matrix according to a grouping correction factor to obtain an exponential matrix of the group corresponding to the grouping correction factor; extending the exponential matrix by using an extension factor of a code length in the group to obtain an LDPC matrix corresponding to the code length; and implementing encoding or decoding by using the LDPC matrix.

摘要翻译： 在本发明的实施例中提供了一种用于以可变代码长度编码或解码LDPC码的方法。 该方法包括：在构建基本指数矩阵期间获得LDPC码的基本指数矩阵并分组码长; 根据分组校正因子校正基本指数矩阵，以获得与分组校正因子对应的组的指数矩阵; 通过使用组中的码长的扩展因子来扩展指数矩阵，以获得与码长相对应的LDPC矩阵; 并通过使用LDPC矩阵实现编码或解码。

公开(公告)号：US20120027407A1

公开(公告)日：2012-02-02

申请号：US13270035

申请日：2011-10-10

申请人： Dongning Feng ,  Dongyu Geng ,  Jing Li ,  Weiguang Liang ,  Frank Effenberger

发明人： Dongning Feng ,  Dongyu Geng ,  Jing Li ,  Weiguang Liang ,  Frank Effenberger

IPC分类号： H04J14/00

CPC分类号： H04B10/27 ,  H04L7/041 ,  H04L7/046 ,  H04Q11/0067

摘要： The present disclosure relates to the Passive Optical Network (PON) technology, and a method for sending an upstream transfer frame in a PON is provided, so as to improve flexibility of a system and satisfy a requirement that an error probability is reduced as low as possible. The method includes: after success of link, sending a preamble according to an allocated time slot, sending a burst synchronization delimiter, and then sending successively a burst header, a Gigabit-Capable Passive Optical Network (GPON) Transmission Convergence (GTC) frame header, and GTC frame data. In the sent synchronization delimiter, the number of non-zeros is the same as the number of zeros, and in a delimiter sequence, the number of non-zeros on odd bits is equal to the number of zeros on even bits, and the number of non-zeros on even bits is equal to the number of zeros on odd bits.

摘要翻译： 本公开涉及无源光网络（PON）技术，并且提供了一种在PON中发送上行传输帧的方法，以提高系统的灵活性并满足将错误概率降低到低至 可能。 该方法包括：在链路成功之后，根据分配的时隙发送前导码，发送突发同步定界符，然后连续发送突发报头，千兆位能力无源光网络（GPON）传输收敛（GTC）帧报头 ，和GTC帧数据。 在发送的同步分隔符中，非零的数量与零的数目相同，并且在分隔符序列中，奇数位上的非零数等于偶数位上的零数， 偶数位上的非零等于奇数位的零数。

公开(公告)号：US20110311225A1

公开(公告)日：2011-12-22

申请号：US13219075

申请日：2011-08-26

申请人： Dongning Feng ,  Dongyu Geng ,  Jing Li ,  Weiguang Liang ,  Frank Effenberger

发明人： Dongning Feng ,  Dongyu Geng ,  Jing Li ,  Weiguang Liang ,  Frank Effenberger

IPC分类号： H04J14/00

CPC分类号： H04B10/27 ,  H04L7/041 ,  H04L7/046 ,  H04Q11/0067

摘要： The present invention relates to the Passive Optical Network (PON) technology, and a method for sending an upstream transfer frame in a PON is provided, so as to improve flexibility of a system and satisfy a requirement that an error probability is reduced as low as possible. The method includes: after success of link, sending a preamble according to an allocated time slot, sending a burst synchronization delimiter, and then sending successively a burst header, a Gigabit-Capable Passive Optical Network (GPON) Transmission Convergence (GTC) frame header, and GTC frame data. In the sent synchronization delimiter, the number of non-zeros is the same as the number of zeros, and in a delimiter sequence, the number of non-zeros on odd bits is equal to the number of zeros on even bits, and the number of non-zeros on even bits is equal to the number of zeros on odd bits, the number of zeros on the odd bits is N, the number of non-zeros on the odd bits is M, a relation |N−M|≦1 is satisfied, the number of zeros in a continuous zero group is X, the number of non-zeros in a continuous nonzero group is Y, and a relation |X−Y|≦1 is satisfied. A device for sending an upstream transfer frame in a passive optical network is further provided.

摘要翻译： 本发明涉及无源光网络（PON）技术，并且提供了一种在PON中发送上行传输帧的方法，以提高系统的灵活性，并满足将误差概率降低到低至 可能。 该方法包括：在链路成功之后，根据分配的时隙发送前导码，发送突发同步定界符，然后连续发送突发报头，千兆位能力无源光网络（GPON）传输收敛（GTC）帧报头 ，和GTC帧数据。 在发送的同步分隔符中，非零的数量与零的数目相同，并且在分隔符序列中，奇数位上的非零数等于偶数位上的零数， 偶数位上的非零的数量等于奇数位上的零数，奇数位上的零数为N，奇数位上的非零数为M，关系| N-M |＆nlE ; 1满足，连续零组中的零数为X，连续非零组中的非零数为Y，满足关系| X-Y |＆nlE; 1。 还提供了一种用于在无源光网络中发送上游传送帧的设备。

公开(公告)号：US20110181450A1

公开(公告)日：2011-07-28

申请号：US12981739

申请日：2010-12-30

申请人： Dongning Feng ,  Weiguang Liang ,  Dongyu Geng ,  Jing Li ,  Frank Effenberger ,  Sergio Benedetto ,  Guido Montorsi

发明人： Dongning Feng ,  Weiguang Liang ,  Dongyu Geng ,  Jing Li ,  Frank Effenberger ,  Sergio Benedetto ,  Guido Montorsi

IPC分类号： H03M5/06

CPC分类号： H03M5/145

摘要： The present invention provides a convolutional line coding method, including: constructing a sequence set, where the length of each sequence in the sequence set is n bits; selecting a balanced sequence in the sequence set, and obtaining source data of n−1 bits corresponding to the balanced sequence; performing Hamming distance detection for an unbalanced sequence in the sequence set to obtain source data of n−1 bits corresponding to the unbalanced sequence; sorting the balanced sequence and the unbalanced sequence according to an operation difference value, and generating a code table, where the source data of n−1 bits correspond to the sequence of n bits, and the code table is designed for line coding; and at time of encoding the source data of n−1 bits, obtaining a coding result of n bits according to a mapping relation in the code table.

摘要翻译： 本发明提供一种卷积行编码方法，包括：构建序列集中的每个序列的长度为n位的序列集; 选择序列集中的平衡序列，获得对应于平衡序列的n-1个比特的源数据; 对所述序列集中的不平衡序列进行汉明距离检测，以获得与所述不平衡序列相对应的n-1个比特的源数据; 根据操作差值对平衡序列和不平衡序列进行排序，并生成代码表，其中n-1位的源数据对应于n位的序列，并且代码表被设计用于线路编码; 并且在对n-1位的源数据进行编码时，根据代码表中的映射关系获得n位的编码结果。

公开(公告)号：US08432302B2

公开(公告)日：2013-04-30

申请号：US12981739

申请日：2010-12-30

申请人： Dongning Feng ,  Weiguang Liang ,  Dongyu Geng ,  Jing Li ,  Frank Effenberger ,  Sergio Benedetto ,  Guido Montorsi

发明人： Dongning Feng ,  Weiguang Liang ,  Dongyu Geng ,  Jing Li ,  Frank Effenberger ,  Sergio Benedetto ,  Guido Montorsi

IPC分类号： H03M5/00

CPC分类号： H03M5/145

摘要： The present invention provides a convolutional line coding method, including: constructing a sequence set, where the length of each sequence in the sequence set is n bits; selecting a balanced sequence in the sequence set, and obtaining source data of n−1 bits corresponding to the balanced sequence; performing Hamming distance detection for an unbalanced sequence in the sequence set to obtain source data of n−1 bits corresponding to the unbalanced sequence; sorting the balanced sequence and the unbalanced sequence according to an operation difference value, and generating a code table, where the source data of n−1 bits correspond to the sequence of n bits, and the code table is designed for line coding; and at time of encoding the source data of n−1 bits, obtaining a coding result of n bits according to a mapping relation in the code table.

摘要翻译： 本发明提供一种卷积行编码方法，包括：构建序列集中的每个序列的长度为n位的序列集; 选择序列集中的平衡序列，获得对应于平衡序列的n-1个比特的源数据; 对所述序列集中的不平衡序列进行汉明距离检测，以获得与所述不平衡序列相对应的n-1个比特的源数据; 根据操作差值对平衡序列和不平衡序列进行排序，并生成代码表，其中n-1位的源数据对应于n位的序列，并且代码表被设计用于线路编码; 并且在对n-1位的源数据进行编码时，根据代码表中的映射关系获得n位的编码结果。

公开(公告)号：US08589754B2

公开(公告)日：2013-11-19

申请号：US13111191

申请日：2011-05-19

申请人： Jinhong Yuan ,  Jun Ning ,  Yue Liu ,  Xi Yan ,  Guangjian Wang ,  Yanxing Zeng ,  Weiguang Liang

发明人： Jinhong Yuan ,  Jun Ning ,  Yue Liu ,  Xi Yan ,  Guangjian Wang ,  Yanxing Zeng ,  Weiguang Liang

IPC分类号： H03M13/11

CPC分类号： H03M13/6516 ,  H03M13/116

摘要： A method for encoding or decoding an LDPC code with variable code lengths is provided in an embodiment of the present invention. The method includes: obtaining a base exponential matrix of an LDPC code and grouping code lengths during construction of the base exponential matrix; correcting the base exponential matrix according to a grouping correction factor to obtain an exponential matrix of the group corresponding to the grouping correction factor; extending the exponential matrix by using an extension factor of a code length in the group to obtain an LDPC matrix corresponding to the code length; and implementing encoding or decoding by using the LDPC matrix.

摘要翻译： 在本发明的实施例中提供了一种用于以可变代码长度编码或解码LDPC码的方法。 该方法包括：在构建基本指数矩阵期间获得LDPC码的基本指数矩阵并分组码长; 根据分组校正因子校正基本指数矩阵，以获得与分组校正因子对应的组的指数矩阵; 通过使用组中的码长的扩展因子来扩展指数矩阵，以获得与码长相对应的LDPC矩阵; 并通过使用LDPC矩阵实现编码或解码。