APPARATUS AND METHOD FOR CHANNEL ENCODING AND DECODING BASED ON LOW-DENSITY PARITY CHECK CODE IN MULTIPLE ANTENNA COMMUNICATION SYSTEM
    52.
    发明申请
    APPARATUS AND METHOD FOR CHANNEL ENCODING AND DECODING BASED ON LOW-DENSITY PARITY CHECK CODE IN MULTIPLE ANTENNA COMMUNICATION SYSTEM 有权
    基于多个天线通信系统中的低密度奇偶校验码的信道编码和解码的装置和方法

    公开(公告)号:US20120173948A1

    公开(公告)日:2012-07-05

    申请号:US13324517

    申请日:2011-12-13

    IPC分类号: H03M13/05 G06F11/10

    摘要: Methods and apparatuses are provided for achieving maximum diversity gain through channel coding based on a Low-Density Parity-Check (LDPC) code in a multiple antenna communication system. A method includes determining a parity-check matrix; generating a codeword using the parity-check matrix; puncturing a part of an information word; dividing a parity into a plurality of partial parities based on a number of transmit antennas; transmitting an unpunctured part of the information word and a partial parity over a first antenna; and transmitting at least one other partial parity over at least one other transmit antenna.

    摘要翻译: 提供了用于通过基于多天线通信系统中的低密度奇偶校验(LDPC)码的信道编码实现最大分集增益的方法和装置。 一种方法包括确定奇偶校验矩阵; 使用奇偶校验矩阵生成码字; 刺穿一部分信息字; 基于发射天线的数量将奇偶校验分为多个部分奇偶校验; 在第一天线上发送所述信息字的未穿透部分和部分奇偶校验; 以及在至少一个其他发射天线上发射至少一个其它部分奇偶校验。

    APPARATUS AND METHOD FOR INDICATING A PACKET ERROR IN AN AUDIO AND VIDEO COMMUNICATION SYSTEM
    53.
    发明申请
    APPARATUS AND METHOD FOR INDICATING A PACKET ERROR IN AN AUDIO AND VIDEO COMMUNICATION SYSTEM 有权
    用于表示音频和视频通信系统中的分组错误的装置和方法

    公开(公告)号:US20120144265A1

    公开(公告)日:2012-06-07

    申请号:US13312464

    申请日:2011-12-06

    IPC分类号: G06F11/08

    CPC分类号: H04L1/0082

    摘要: An apparatus and method are provided for indicating an error of a transport packet in an audio and video communication system. The method includes receiving a frame including a transport packet, attempting Forward Error Correction (FEC) on the frame, and setting a value of an error indicating field in the transport packet according to a result of the FEC. The error indicating field includes at least one of a first flag indicating a presence or absence of an error in the transport packet, a second flag indicating a success or failure of the FEC, and a third flag indicating detection or non-detection of a Cyclic Redundancy Check (CRC).

    摘要翻译: 提供了一种用于指示音频和视频通信系统中的传输分组的错误的装置和方法。 该方法包括接收包括传输分组的帧,尝试在该帧上进行前向纠错(FEC),并根据FEC的结果设置传输分组中的错误指示字段的值。 错误指示字段包括指示传输分组中存在或不存在错误的第一标志,指示FEC的成功或失败的第二标志和指示循环的检测或不检测的第三标志中的至少一个 冗余校验(CRC)。

    APPARATUS AND METHOD FOR CODING/DECODING BLOCK LOW DENSITY PARITY CHECK CODE IN A MOBILE COMMUNICATION SYSTEM
    57.
    发明申请
    APPARATUS AND METHOD FOR CODING/DECODING BLOCK LOW DENSITY PARITY CHECK CODE IN A MOBILE COMMUNICATION SYSTEM 有权
    移动通信系统中编码/解码块低密度奇偶校验码的装置和方法

    公开(公告)号:US20070283221A1

    公开(公告)日:2007-12-06

    申请号:US11831688

    申请日:2007-07-31

    IPC分类号: H03M13/00

    摘要: A method for generating a parity check matrix of a block LDPC code. The parity check matrix includes an information part corresponding to an information word and a first parity part and a second parity part each corresponding to a parity. The method includes determining a size of the parity check matrix based on a coding rate applied when coding the information word with the block LDPC code, and a codeword length; dividing a parity check matrix with the determined size into a predetermined number of blocks; classifying the blocks into blocks corresponding to the information part, blocks corresponding to the first parity part, and blocks corresponding to the second parity part; arranging permutation matrixes in predetermined blocks from among the blocks classified as the first parity part, and arranging identity matrixes in a full lower triangular form in predetermined blocks from among the blocks classified as the second parity part; and arranging the permutation matrixes in the blocks classified as the information part such that a minimum cycle length is maximized and weight values are irregular on a factor graph of the block LDPC code.

    摘要翻译: 一种用于产生块LDPC码的奇偶校验矩阵的方法。 奇偶校验矩阵包括对应于信息字的信息部分和对应于奇偶校验的第一奇偶校验部分和第二奇偶校验部分。 该方法包括基于在使用块LDPC码对信息字进行编码时应用的编码率和码字长度来确定奇偶校验矩阵的大小; 将具有所确定的大小的奇偶校验矩阵除以预定数量的块; 将块分类为对应于信息部分的块,对应于第一奇偶校验部分的块,以及对应于第二奇偶校验部分的块; 从分类为第一奇偶校验部分的块中将预定块中的置换矩阵排列在预定块中的整个下三角形形式中的单位矩阵,从被分类为第二奇偶校验部分的块中排列; 以及将排列矩阵排列在分组为信息部分的块中,使得最小周期长度最大化,权重值在块LDPC码的因子图上是不规则的。