LDPC encoding/decoding method and device using same
    1.
    发明授权
    LDPC encoding/decoding method and device using same 有权
    LDPC编码/解码方法及其使用方法

    公开(公告)号:US09219501B2

    公开(公告)日:2015-12-22

    申请号:US14234714

    申请日:2012-07-12

    IPC分类号: H03M13/00 H03M13/11

    摘要: Disclosed are an LDPC encoding/decoding method and a device using same. The method includes the steps of: (a) generating an information bit sequence by determining information bits to be encoded from among a group of information bits; (b) generating a modified information bit sequence by inserting a preset error floor prevention bit into at least one preset position in the information bit sequence; (c) generating a parity check bit on the basis of the modified information bit sequence; and (d) performing encoding by using the modified information bit sequence and the parity check bit. According to the disclosed method, performance degradation of LDPC encoding and decoding due to an error floor phenomenon can be prevented.

    摘要翻译: 公开了LDPC编码/解码方法和使用它的装置。 该方法包括以下步骤:(a)通过从一组信息比特中确定要编码的信息比特来产生信息比特序列; (b)通过将预设的错误防止地址位插入信息位序列中的至少一个预设位置来产生修改的信息位序列; (c)基于修改的信息比特序列生成奇偶校验比特; 和(d)通过使用修改的信息比特序列和奇偶校验位进行编码。 根据所公开的方法,可以防止由于错误出现现象引起的LDPC编码和解码的性能下降。

    LDPC ENCODING/DECODING METHOD AND DEVICE USING SAME
    3.
    发明申请
    LDPC ENCODING/DECODING METHOD AND DEVICE USING SAME 有权
    LDPC编码/解码方法和使用相同的设备

    公开(公告)号:US20140173375A1

    公开(公告)日:2014-06-19

    申请号:US14234714

    申请日:2012-07-12

    IPC分类号: H03M13/11

    摘要: Disclosed are an LDPC encoding/decoding method and a device using same. The method includes the steps of: (a) generating an information bit sequence by determining information bits to be encoded from among a group of information bits; (b) generating a modified information bit sequence by inserting a preset error floor prevention bit into at least one preset position in the information bit sequence; (c) generating a parity check bit on the basis of the modified information bit sequence; and (d) performing encoding by using the modified information bit sequence and the parity check bit. According to the disclosed method, performance degradation of LDPC encoding and decoding due to an error floor phenomenon can be prevented.

    摘要翻译: 公开了LDPC编码/解码方法和使用它的装置。 该方法包括以下步骤:(a)通过从一组信息比特中确定要编码的信息比特来产生信息比特序列; (b)通过将预设的错误防止地址位插入信息位序列中的至少一个预设位置来产生修改的信息位序列; (c)基于修改的信息比特序列生成奇偶校验比特; 和(d)通过使用修改的信息比特序列和奇偶校验位进行编码。 根据所公开的方法,可以防止由于错误出现现象引起的LDPC编码和解码的性能下降。

    Source antenna switching scheme for non-orthogonal protocol
    4.
    发明授权
    Source antenna switching scheme for non-orthogonal protocol 有权
    用于非正交协议的源天线切换方案

    公开(公告)号:US08699400B2

    公开(公告)日:2014-04-15

    申请号:US12571771

    申请日:2009-10-01

    IPC分类号: H04B7/14

    摘要: The present invention relates to a source antenna switching scheme for a non-orthogonal protocol; and more particularly, to a source antenna switching scheme for a non-orthogonal protocol, which transmits a signal of a source node to a destination node through a relay node. The present invention provides a source antenna switching scheme for a non-orthogonal decode-and-forward protocol that can acquire a greater diversity than the conventional NDF protocol. In other words, the present invention provides a source antenna switching scheme for a non-orthogonal decode-and-forward protocol that can increase a diversity order by adding a reasonable priced antenna instead of expensive hardware such as an RF chain when there are a plurality of antenna in the RF chain.

    摘要翻译: 本发明涉及非正交协议的源天线切换方案; 更具体地,涉及用于通过中继节点将源节点的信号发送到目的地节点的非正交协议的源天线切换方案。 本发明提供了一种用于非正交解码和转发协议的源天线切换方案,其可以获得比常规NDF协议更大的分集。 换句话说,本发明提供了一种用于非正交解码和转发协议的源天线切换方案,其可以通过添加合理的价格天线而不是诸如RF链的昂贵硬件来增加分集顺序,当存在多个 的RF链中的天线。

    Product code decoding method and device
    5.
    发明授权
    Product code decoding method and device 有权
    产品代码解码方法及装置

    公开(公告)号:US08468430B2

    公开(公告)日:2013-06-18

    申请号:US13005294

    申请日:2011-01-12

    IPC分类号: H03M13/00

    摘要: A method for a decoding device to decode a codeword matrix of a product code includes: generating a first extended parity check matrix for a vertical code; decoding a horizontal codeword of a plurality of rows in the codeword matrix to thus perform a first decoding process; generating a second extended parity check matrix by removing a column corresponding to a row of the first decoding-succeeded horizontal codeword from the first extended parity check matrix; and decoding the first decoding-failed horizontal codeword by using the second extended parity check matrix to thus perform a second decoding process. Therefore, the simple and reliable product code decoding method is provided.

    摘要翻译: 解码装置对产品码的码字矩阵进行解码的方法包括:产生用于垂直码的第一扩展奇偶校验矩阵; 解码码字矩阵中的多行的水平码字,从而执行第一解码处理; 通过从所述第一扩展奇偶校验矩阵中移除与所述第一解码后继水平码字的行相对应的列来产生第二扩展奇偶校验矩阵; 以及通过使用第二扩展奇偶校验矩阵来解码第一解码失败的水平码字,从而执行第二解码处理。 因此,提供了简单可靠的产品代码解码方法。

    Apparatus and method for generating low density parity check code using zigzag code in a communication system
    7.
    发明申请
    Apparatus and method for generating low density parity check code using zigzag code in a communication system 审中-公开
    用于在通信系统中使用锯齿形代码生成低密度奇偶校验码的设备和方法

    公开(公告)号:US20060190801A1

    公开(公告)日:2006-08-24

    申请号:US11359249

    申请日:2006-02-22

    IPC分类号: H03M13/00

    摘要: A method for generating a low-density parity check (LDPC) code supporting various code rates. The method includes finding a plurality of parity check matrixes showing the best performance at a predetermined code rate; matching the parity check matrixes in terms of the number of ‘1’s per row in units of sub-matrixes of each of the matrixes; and converting the plurality of parity check matrixes into one matrix, and combining punctured zigzag codes generated for every code rate into one punctured zigzag code.

    摘要翻译: 一种用于生成支持各种码率的低密度奇偶校验(LDPC)码的方法。 该方法包括:以预定的码率找到显示最佳性能的多个奇偶校验矩阵; 根据每个矩阵的子矩阵单位的每行“1”的数量来匹配奇偶校验矩阵; 并将所述多个奇偶校验矩阵转换为一个矩阵,以及将针对每个码率产生的经打孔的之字形码组合成一个经打孔的之字形码。

    Apparatus and method for encoding low density parity check codes in a communication system
    9.
    发明授权
    Apparatus and method for encoding low density parity check codes in a communication system 有权
    用于在通信系统中编码低密度奇偶校验码的装置和方法

    公开(公告)号:US07930619B2

    公开(公告)日:2011-04-19

    申请号:US11789966

    申请日:2007-04-26

    IPC分类号: H03M13/03

    CPC分类号: H03M13/1151 H03M13/1111

    摘要: A Low Density Parity Check (LDPC) code encoding apparatus for a communication system is provided. The encoding apparatus receives information bits, and generates an LDPC code by encoding the information bits using an interleaving scheme. The interleaving scheme is generated such that when the LDPC code is punctured, there is no short-length cycle in a Tanner graph of the punctured LDPC code.

    摘要翻译: 提供了一种用于通信系统的低密度奇偶校验(LDPC)码编码装置。 编码装置接收信息比特,并且通过使用交织方案对信息比特进行编码来生成LDPC码。 生成交织方案,使得当LDPC码被打孔时,在打孔的LDPC码的Tanner图中不存在短长度的周期。

    Apparatus and method for reducing peak-to-average power ratio in an OFDM communication system
    10.
    发明申请
    Apparatus and method for reducing peak-to-average power ratio in an OFDM communication system 有权
    用于降低OFDM通信系统中的峰均功率比的装置和方法

    公开(公告)号:US20070041459A1

    公开(公告)日:2007-02-22

    申请号:US11501964

    申请日:2006-08-10

    IPC分类号: H04K1/10

    CPC分类号: H04L27/2624

    摘要: A Peak-to-Average Power Ratio (PAPR) reduction apparatus and method in an OFDM communication system are provided. In the PAPR reduction method, magnitude and phase components are extracted from transmission sample data. Peaks having magnitude components exceeding a threshold are detected by comparing the extracted magnitude components with the threshold. The highest of the peaks is detected and compared with the threshold. If the highest peak is greater than the threshold, the highest peak is updated.

    摘要翻译: 提供了一种OFDM通信系统中的峰值平均功率比(PAPR)降低装置和方法。 在PAPR缩小方法中,从传输样本数据中提取幅度和相位分量。 通过将所提取的幅度分量与阈值进行比较来检测具有超过阈值的幅度分量的峰值。 检测最高峰,并将其与阈值进行比较。 如果最高峰值大于阈值,则更新最高峰。