Method and apparatus for space-time coding using lifting low density parity check codes in a wireless communication system
    55.
    发明授权
    Method and apparatus for space-time coding using lifting low density parity check codes in a wireless communication system 有权
    在无线通信系统中使用提升低密度奇偶校验码进行时空编码的方法和装置

    公开(公告)号:US07729437B2

    公开(公告)日:2010-06-01

    申请号:US10964275

    申请日:2004-10-13

    IPC分类号: H04B7/02

    摘要: A mobile communication system and method for transmitting signals through a plurality of transmission antennas by space-time coding the signals. The signals are transmitted using a low density parity check code. A lifting low density parity check matrix is formed by expanding values of elements in a low density parity check matrix with a sub-matrix corresponding to a number of the transmission antennas. The signals to be transmitted are coded using the lifting low density parity check matrix. Thereafter, the coded signals are serial/parallel converted and transmitted through the transmission antennas.

    摘要翻译: 一种用于通过对信号进行空时编码来通过多个发送天线发送信号的移动通信系统和方法。 使用低密度奇偶校验码传输信号。 通过使用与多个发送天线对应的子矩阵在低密度奇偶校验矩阵中扩展元素的值来形成提升低密度奇偶校验矩阵。 要发送的信号使用提升低密度奇偶校验矩阵进行编码。 此后,编码信号被串行/并行转换并通过发送天线发送。

    APPARATUS AND METHOD FOR CHANNEL ENCODING/DECODING IN COMMUNICATION SYSTEM USING VARIABLE-LENGTH LDPC CODES
    60.
    发明申请
    APPARATUS AND METHOD FOR CHANNEL ENCODING/DECODING IN COMMUNICATION SYSTEM USING VARIABLE-LENGTH LDPC CODES 有权
    使用可变长度LDPC码的通信系统中通道编码/解码的装置和方法

    公开(公告)号:US20090070652A1

    公开(公告)日:2009-03-12

    申请号:US12208316

    申请日:2008-09-10

    IPC分类号: H03M13/05 G06F11/10

    摘要: A method and apparatus for generating Low-Density Parity Check (LDPC) codes of various block lengths from a structured LDPC code in a communication system is provided. To support various block lengths, predefined rules are applied to a parity check matrix of an LDPC code, and then shortening is selectively applied to the parity check matrix. Subsequently, if information data bits are input, the input data information bits are encoded into an LDPC codeword by using the parity check matrix according to a preset encoding scheme, and then the encoded LDPC codeword is transmitted after puncturing is selectively applied.

    摘要翻译: 提供了一种用于从通信系统中的结构化LDPC码生成各种块长度的低密度奇偶校验(LDPC)码的方法和装置。 为了支持各种块长度,将预定义的规则应用于LDPC码的奇偶校验矩阵,然后选择性地将缩短选择性地应用于奇偶校验矩阵。 随后,如果输入信息数据位,则通过使用根据预设编码方案的奇偶校验矩阵将输入数据信息比特编码为LDPC码字,然后选择性地应用穿孔后发送编码的LDPC码字。