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    • 13. 发明授权
    • Data transmission method and equipment
    • 数据传输方式和设备
    • US08458571B2
    • 2013-06-04
    • US12812091
    • 2008-04-30
    • Jin XuYuanli FangZhifeng YuanSong LiJun XuLiujun Hu
    • Jin XuYuanli FangZhifeng YuanSong LiJun XuLiujun Hu
    • H03M13/00
    • H04L1/0057H04L1/0052H04L1/0083
    • 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.
    • 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。
    • 14. 发明申请
    • Coding method, coding device, decoding method and decoding device for low density generator matrix code
    • 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
    • US20100257427A1
    • 2010-10-07
    • US12746181
    • 2008-02-21
    • Jin XuJun XuZhifeng YuanYuanli FangSong LiLiujun Hu
    • Jin XuJun XuZhifeng YuanYuanli FangSong LiLiujun Hu
    • H03M13/05G06F11/10
    • H03M13/116H03M13/118H03M13/6362H03M13/6516
    • 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.
    • 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。