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

    公开(公告)号:US08055987B2

    公开(公告)日:2011-11-08

    申请号:US12074890

    申请日:2008-03-06

    IPC分类号: G06F11/00

    摘要: An apparatus and method for transmitting and receiving a signal in a communication system are provided. The signal transmission apparatus generates a parity check matrix for an LDPC code in accordance with a code rate to be used and generates a codeword vector by encoding an information vector using the parity check matrix. When the code rate is a first code rate, the signal transmission apparatus generates a first parity check matrix as the parity check matrix for the LDPC code. When the code rate is the second code rate, the signal transmission apparatus generates a second parity check matrix supporting a second code rate lower than the first code rate by adding columns of a degree of 1 and columns of a degree of 2 to the first parity check matrix and generates the second parity check matrix as the parity check matrix for the LDPC code.

    摘要翻译: 提供了一种用于在通信系统中发送和接收信号的装置和方法。 信号发送装置根据要使用的码率生成用于LDPC码的奇偶校验矩阵,并且通过使用奇偶校验矩阵对信息向量进行编码来生成码字向量。 当码率是第一码率时,信号发送装置生成第一奇偶校验矩阵作为LDPC码的奇偶校验矩阵。 当码率是第二码率时,信号发送装置通过将1的度数和2度的列的列相加于第一奇偶校验码来生成支持低于第一码率的第二码率的第二奇偶校验矩阵 生成第二奇偶校验矩阵作为LDPC码的奇偶校验矩阵。

    Apparatus and method for transmitting and receiving signal in a communication system
    2.
    发明申请
    Apparatus and method for transmitting and receiving signal in a communication system 有权
    在通信系统中发送和接收信号的装置和方法

    公开(公告)号:US20080263431A1

    公开(公告)日:2008-10-23

    申请号:US12074890

    申请日:2008-03-06

    IPC分类号: H03M13/00

    摘要: An apparatus and method for transmitting and receiving a signal in a communication system are provided. The signal transmission apparatus generates a parity check matrix for an LDPC code in accordance with a code rate to be used and generates a codeword vector by encoding an information vector using the parity check matrix. When the code rate is a first code rate, the signal transmission apparatus generates a first parity check matrix as the parity check matrix for the LDPC code. When the code rate is the second code rate, the signal transmission apparatus generates a second parity check matrix supporting a second code rate lower than the first code rate by adding columns of a degree of 1 and columns of a degree of 2 to the first parity check matrix and generates the second parity check matrix as the parity check matrix for the LDPC code.

    摘要翻译: 提供了一种用于在通信系统中发送和接收信号的装置和方法。 信号发送装置根据要使用的码率生成用于LDPC码的奇偶校验矩阵,并且通过使用奇偶校验矩阵对信息向量进行编码来生成码字向量。 当码率是第一码率时,信号发送装置生成第一奇偶校验矩阵作为LDPC码的奇偶校验矩阵。 当码率是第二码率时,信号发送装置通过将1的度数和2度的列的列相加于第一奇偶校验码来生成支持低于第一码率的第二码率的第二奇偶校验矩阵 生成第二奇偶校验矩阵作为LDPC码的奇偶校验矩阵。

    Apparatus and method for transmitting/receiving signal in a communication system using low density parity check code
    9.
    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

    IPC分类号: H03M13/00

    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。

    Apparatus and method for transmitting/receiving signal in a communication system
    10.
    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

    IPC分类号: H03M13/00

    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。