Apparatus and method for transmitting and receiving data in communication/broadcasting system
    42.
    发明授权
    Apparatus and method for transmitting and receiving data in communication/broadcasting system 有权
    在通信/广播系统中发送和接收数据的装置和方法

    公开(公告)号:US09231734B2

    公开(公告)日:2016-01-05

    申请号:US14351066

    申请日:2012-09-20

    Abstract: An apparatus and a method for performing shortening and puncturing in case of performing encoding and decoding using a parity test matrix in a communication/broadcasting system are provided. The method includes determining a number of zero-padding bits, determining a number Npad of bit groups in which all bits are padded with zeros, padding the all bits within 0th to (Npad−1)th bit groups with zeros based on a shortening pattern, encoding information bits including the zero-padded bits to generate a codeword. Here, the shortening pattern is defined in a sequence of bit groups defined as 9, 8, 15, 10, 0, 12, 5, 27, 6, 7, 19, 22, 1, 16, 26, 20, 21, 18, 11, 3, 17, 24, 2, 23, 25, 14, 28, 4, 13, 29.

    Abstract translation: 提供了在通信/广播系统中使用奇偶校验矩阵进行编码和解码的情况下进行缩短和删截的装置和方法。 该方法包括确定一个零填充比特数,确定其中所有比特用零填充的比特组的数目Npad,基于缩短模式以0为单位填充0到(Npad-1)比特组内的所有比特 编码包括零填充比特的信息比特以产生码字。 这里,缩短图案被定义在定义为9,8,15,10,00,12,5,27,6,7,19,22,1,16,26,20,21,18的位组的序列中 ,11,3,17,24,2,23,25,14,28,4,13,29。

    Apparatus and method for channel encoding and decoding in communication system using low-density parity-check codes
    45.
    发明授权
    Apparatus and method for channel encoding and decoding in communication system using low-density parity-check codes 有权
    使用低密度奇偶校验码的通信系统中信道编码和解码的装置和方法

    公开(公告)号:US08533556B2

    公开(公告)日:2013-09-10

    申请号:US13655075

    申请日:2012-10-18

    Abstract: A method and an apparatus are provided for decoding a channel in a communication system using a LDPC code. A shortening pattern and a puncturing pattern are determined based on a received signal. A value of a shortened bit is set to 0 according to the determined shortening pattern, erasures are set according to the determined puncturing pattern, and LDPC decoding is performed, when bits exist which have been used to perform shortening or puncturing. Determining the shortening pattern and the puncturing pattern includes setting a predetermined ratio of the number of punctured bits to the number of shortened bits.

    Abstract translation: 提供了一种使用LDPC码对通信系统中的信道进行解码的方法和装置。 基于接收到的信号来确定缩短模式和删截模式。 根据确定的缩短模式,将缩短比特的值设置为0,根据所确定的删截模式设置擦除,并且当存在已经用于执行缩短或删截的比特时执行LDPC解码。 确定缩短模式和删截模式包括将删截比特数的预定比率设置为缩短比特数。

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