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    Apparatus and method for transmitting/receiving signal in a communication system
    1.
    发明授权
    Apparatus and method for transmitting/receiving signal in a communication system 有权
    在通信系统中发送/接收信号的装置和方法

    公开(公告)号：US07908541B2

    公开(公告)日：2011-03-15

    申请号：US11751339

    申请日：2007-05-21

    申请人： Gyu-Bum Kyung ,  Seung-Hoon Choi ,  Hong-Sil Jeong ,  Dong-Seek Park ,  Jae-Yoel Kim ,  Sung-Eun Park ,  Hyun-Koo Yang ,  Kyeong-Cheol Yang

    发明人： Gyu-Bum Kyung ,  Seung-Hoon Choi ,  Hong-Sil Jeong ,  Dong-Seek Park ,  Jae-Yoel Kim ,  Sung-Eun Park ,  Hyun-Koo Yang ,  Kyeong-Cheol Yang

    IPC分类号： H03M13/00

    CPC分类号： H03M13/11 ,  H03M13/255 ,  H03M13/27

    摘要： A signal transmission apparatus in a communication system is disclosed. A channel interleaver generates an interleaved vector by channel-interleaving a Low Density Parity Check (LDPC) codeword according to a channel interleaving rule, and a modulator generates a modulation symbol by modulating the interleaved vector according to a modulation scheme. The channel interleaving rule is one of a first channel interleaving rule and a second channel interleaving rule. The first channel interleaving rule is a rule for setting degree distribution for nodes in a factor graph of the LDPC codeword separately for individual levels supported by the modulation scheme. The second channel interleaving rule is a rule for allowing coded bits included in the LDPC codeword to be interleaved according to an unequal error characteristic of the modulation scheme.

    摘要翻译： 公开了一种通信系统中的信号发送装置。 信道交织器根据信道交织规则通过对低密度奇偶校验（LDPC）码字进行信道交织来生成交错矢量，并且调制器通过根据调制方式调制交织向量来产生调制符号。 信道交织规则是第一信道交织规则和第二信道交织规则之一。 第一信道交织规则是用于针对由调制方案支持的各个级别分别设置LDPC码字的因子图中的节点的度数分布的规则。 第二信道交织规则是用于允许根据调制方案的不等错误特性来交织包含在LDPC码字中的编码比特的规则。

    Apparatus and method for coding/decoding block low density parity check code in a mobile communication system
    9.
    发明授权
    Apparatus and method for coding/decoding block low density parity check code in a mobile communication system 有权
    在移动通信系统中对低密度奇偶校验码进行编码/解码的装置和方法

    公开(公告)号：US07962828B2

    公开(公告)日：2011-06-14

    申请号：US11831688

    申请日：2007-07-31

    申请人： Gyu-Bum Kyung ,  Hong-Sil Jeong ,  Jae-Yoel Kim ,  Sung-Eun Park ,  Kyeong-Cheol Yang ,  Se-Ho Myung

    发明人： Gyu-Bum Kyung ,  Hong-Sil Jeong ,  Jae-Yoel Kim ,  Sung-Eun Park ,  Kyeong-Cheol Yang ,  Se-Ho Myung

    IPC分类号： H03M13/00

    CPC分类号： H03M13/1105 ,  H03M13/1102 ,  H03M13/1151 ,  H03M13/1162 ,  H03M13/1171 ,  H03M13/118 ,  H03M13/1185 ,  H03M13/1188 ,  H03M13/1194

    摘要： A method for generating a parity check matrix of a block LDPC code. The parity check matrix includes an information part corresponding to an information word and a first parity part and a second parity part each corresponding to a parity. The method includes determining a size of the parity check matrix based on a coding rate applied when coding the information word with the block LDPC code, and a codeword length; dividing a parity check matrix with the determined size into a predetermined number of blocks; classifying the blocks into blocks corresponding to the information part, blocks corresponding to the first parity part, and blocks corresponding to the second parity part; arranging permutation matrixes in predetermined blocks from among the blocks classified as the first parity part, and arranging identity matrixes in a full lower triangular form in predetermined blocks from among the blocks classified as the second parity part; and arranging the permutation matrixes in the blocks classified as the information part such that a minimum cycle length is maximized and weight values are irregular on a factor graph of the block LDPC code.

    摘要翻译： 一种用于产生块LDPC码的奇偶校验矩阵的方法。 奇偶校验矩阵包括对应于信息字的信息部分和对应于奇偶校验的第一奇偶校验部分和第二奇偶校验部分。 该方法包括基于在使用块LDPC码对信息字进行编码时应用的编码率和码字长度来确定奇偶校验矩阵的大小; 将具有所确定的大小的奇偶校验矩阵除以预定数量的块; 将块分类为对应于信息部分的块，对应于第一奇偶校验部分的块，以及对应于第二奇偶校验部分的块; 从分类为第一奇偶校验部分的块中将预定块中的置换矩阵排列在预定块中的整个下三角形形式中的单位矩阵，从被分类为第二奇偶校验部分的块中排列; 以及将排列矩阵排列在分组为信息部分的块中，使得最小周期长度最大化，权重值在块LDPC码的因子图上是不规则的。

    Apparatus and method for transmitting/receiving signal in a communication system using low density parity check code
    10.
    发明授权
    Apparatus and method for transmitting/receiving signal in a communication system using low density parity check code 有权
    在使用低密度奇偶校验码的通信系统中发送/接收信号的装置和方法

    公开(公告)号：US07890844B2

    公开(公告)日：2011-02-15

    申请号：US11528044

    申请日：2006-09-27

    申请人： Hong-Sil Jeong ,  Sung-Eun Park ,  Seung-Hoon Choi ,  Dong-Seek Park ,  Chi-Woo Lim ,  Gyu-Bum Kyung ,  Jae-Yoel Kim

    发明人： Hong-Sil Jeong ,  Sung-Eun Park ,  Seung-Hoon Choi ,  Dong-Seek Park ,  Chi-Woo Lim ,  Gyu-Bum Kyung ,  Jae-Yoel Kim

    IPC分类号： H03M13/00

    CPC分类号： H03M13/1162 ,  H03M13/618 ,  H03M13/6306

    摘要： An apparatus is provided for transmitting a signal in a communication system using a Low Density Parity Check (LDPC) code. A controller determines a number of ‘0’s to be inserted in information data according to a first coding rate to be applied when generating the information data into an LDPC code, and determines the number of ‘0’s to be removed from the LDPC code. A ‘0’ inserter inserts ‘0s’ in the information data according to control of the controller. An LDPC encoder generates the LDPC code by encoding the ‘0’-inserted signal according to a first parity check matrix. A ‘0’ remover removes the inserted ‘0’s from the LDPC code.

    摘要翻译： 提供了一种用于在使用低密度奇偶校验（LDPC）码的通信系统中发送信号的装置。 控制器根据在将信息数据生成为LDPC码时应用的第一编码率来确定要插入到信息数据中的“0”数，并且确定要从LDPC码中移除的“0”的数目。 “0”插入器根据控制器的控制在信息数据中插入“0”。 LDPC编码器通过根据第一奇偶校验矩阵对“0”插入的信号进行编码来生成LDPC码。 “0”去除器从LDPC码中移除插入的0。