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220 条记录 (耗时 0.047 秒)

    Method and apparatus for space-time coding using lifting low density parity check codes in a wireless communication system
    72.
    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

    申请人： Hong-Sil Jeong ,  Jae-Yoel Kim ,  Chan-Byoung Chae

    发明人： Hong-Sil Jeong ,  Jae-Yoel Kim ,  Chan-Byoung Chae

    IPC分类号： H04B7/02

    CPC分类号： H04L1/0057 ,  H04L1/0071 ,  H04L1/0656

    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
    77.
    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

    申请人： Seho Myung ,  Hong-Sil Jeong ,  Jae-Yoel Kim ,  Sung-Ryul Yun ,  Hak-Ju Lee

    发明人： Seho Myung ,  Hong-Sil Jeong ,  Jae-Yoel Kim ,  Sung-Ryul Yun ,  Hak-Ju Lee

    IPC分类号： H03M13/05 ,  G06F11/10

    CPC分类号： H03M13/1185 ,  H03M13/618 ,  H03M13/6362 ,  H03M13/6393

    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。

    Apparatus and method for symbol mapping TFCI bits for a hard split mode in a CDMA mobile communication system
    79.
    发明授权
    Apparatus and method for symbol mapping TFCI bits for a hard split mode in a CDMA mobile communication system 有权
    用于CDMA移动通信系统中用于硬分离模式的符号映射TFCI比特的装置和方法

    公开(公告)号：US07436806B2

    公开(公告)日：2008-10-14

    申请号：US10190645

    申请日：2002-07-08

    申请人： Sung-Oh Hwang ,  Kook-Heui Lee ,  Jae-Yoel Kim ,  Sang-Hwan Park

    发明人： Sung-Oh Hwang ,  Kook-Heui Lee ,  Jae-Yoel Kim ,  Sang-Hwan Park

    IPC分类号： H04B7/216

    CPC分类号： H04L1/0057 ,  H03M13/136 ,  H03M13/45 ,  H03M13/618 ,  H03M13/6362 ,  H04B7/264 ,  H04B2201/70701 ,  H04L1/0025 ,  H04L1/0028 ,  H04L1/0039 ,  H04L1/0079 ,  H04W84/00

    摘要： A method for mapping first coded TFCI symbols and second coded TFCI symbols to a radio frame in a transmission apparatus of a mobile communication system for encoding k first TFCI bits and (10−k) second TFCI bits, a sum of the first coded TFCI symbols and the second coded TFCI symbols being 32. The method comprises multiplexing the coded symbols such that the first coded TFCI symbols and the second coded TFCI symbols are uniformly distributed according to a transmission mode and a data rate of the radio frame, and outputting 32 coded symbols; and mapping the 32 multiplexed coded symbols to the radio frame to satisfy the number of the coded symbols that can be mapped to one radio frame, determined according to the transmission mode and the data rate of the radio frame.

    摘要翻译： 一种用于将第一编码TFCI符号和第二编码TFCI符号映射到用于对k个第一TFCI位和（10-k）个第二TFCI位进行编码的移动通信系统的发送装置中的第一编码TFCI符号的和， 第二编码TFCI符号为32。 该方法包括多路复用编码符号，使得第一编码TFCI符号和第二编码TFCI符号根据无线电帧的传输模式和数据速率均匀分布，并输出32个编码符号; 并将32个多路复用编码符号映射到无线帧，以满足可以映射到根据无线电帧的传输模式和数据速率确定的一个无线电帧的编码符号的数量。

    Method and apparatus for weighted non-binary repeat accumulate coding and space-time coding
    80.
    发明授权
    Method and apparatus for weighted non-binary repeat accumulate coding and space-time coding 有权
    用于加权非二进制重复累加编码和时空编码的方法和装置

    公开(公告)号：US07423996B2

    公开(公告)日：2008-09-09

    申请号：US10345556

    申请日：2003-01-16

    申请人： Jungmin Son ,  Kyeongchul Yang ,  Jae-Yoel Kim

    发明人： Jungmin Son ,  Kyeongchul Yang ,  Jae-Yoel Kim

    IPC分类号： H03M13/03 ,  H04B7/216 ,  H04J11/00

    CPC分类号： H03M13/1194 ,  H03M13/1171 ,  H03M13/23 ,  H03M13/25 ,  H03M13/29 ,  H04L1/0618 ,  H04L1/08

    摘要： An apparatus and method for weighted non-binary RA coding and space-time coding are disclosed. Transmission data is divided in the units of frames each having mN bits, and each frame is further segmented into N blocks, each block containing m bits. The N blocks are converted to N non-binary GF(2m) elements. These N non-binary symbols are repeated by a repetition factor r. The rN symbols are multiplied by weighting factors being GF(2m) elements other than zero. The rN weighted symbols are interleaved and accumulated. The rN accumulated symbols are transmitted to a receiver, or each of the rN accumulated symbols is demapped to m bits prior to transmission. Therefore, information can be transmitted reliably in a wireless communication system.

    摘要翻译： 公开了一种用于加权非二进制RA编码和时空编码的装置和方法。 发送数据以每个具有mN比特的帧为单位划分，并且每个帧进一步分割成N个块，每个块包含m比特。 N个块被转换为N个非二进制GF（2MM）元素。 这些N个非二进制符号被重复因子r重复。 rN符号乘以除了零以外的GF（2 ）个元素的加权因子。 rN加权符号被交织和累积。 rN累积的符号被发送到接收机，或者在传输之前将rN个累加的符号中的每一个解映射到m位。 因此，可以在无线通信系统中可靠地发送信息。