Method of Encoding and Decoding Using Low Density Parity Check Code
    2.
    发明申请
    Method of Encoding and Decoding Using Low Density Parity Check Code 有权
    使用低密度奇偶校验码进行编码和解码的方法

    公开(公告)号:US20080270877A1

    公开(公告)日:2008-10-30

    申请号:US11572705

    申请日:2005-07-26

    IPC分类号: H03M13/00

    摘要: A method of encoding and decoding using an LDPC code is disclosed, by which a memory for storing a parity check matrix necessary for the encoding or decoding using the LDPC code and calculation amount and complexity necessary for the encoding or decoding can be reduced. The present invention includes a step of encoding an input data using a parity check matrix H having a configuration of H=[Hd|Hp] (Hd is (n−k)×k dimensional, Hp is (n−k)×(n−k) dimensional, k is a bit number of the input data, and n is a bit number of a codeword), wherein if the Hd comprises a plurality of sub-matrices, each of the sub-matrices has predetermined regularity in a row or column weight.

    摘要翻译: 公开了一种使用LDPC码进行编码和解码的方法,通过该方法可以减少用于使用LDPC码进行编码或解码所需的奇偶校验矩阵的存储器以及用于编码或解码所需的计算量和复杂度。 本发明包括使用具有H = H H(H D)H(H D)的配置的奇偶校验矩阵H对输入数据进行编码的步骤 (nk)×k维,H(nk)×(nk)维,k是输入数据的位数,n是码字的位数) ,其中如果H 包括多个子矩阵,则每个子矩阵具有预定的行或列权重的规则性。

    Method of Encoding and Decoding Adaptive to Variable Code Rate Using Ldpc Code
    3.
    发明申请
    Method of Encoding and Decoding Adaptive to Variable Code Rate Using Ldpc Code 有权
    使用Ldpc代码对自适应变码率进行编码和解码的方法

    公开(公告)号:US20080256425A1

    公开(公告)日:2008-10-16

    申请号:US11571296

    申请日:2005-06-24

    IPC分类号: H03M13/09 G06F11/10

    摘要: A variable code rate adaptive encoding/decoding method using LDDC code is disclosed, in which an input source data is encoded using the LDPC (low density parity check) code defined by a first parity check matrix configured with a plurality of submatrices. The present invention includes the steps of generating a second parity check matrix corresponding to a code rate by reducing a portion of a plurality of submatrices configuring a first parity check matrix according to the code rate to be applied to encoding an input source data and encoding the input source data using the second parity check matrix.

    摘要翻译: 公开了一种使用LDDC码的可变码率自适应编码/解码方法,其中使用由配置有多个子矩阵的第一奇偶校验矩阵定义的LDPC(低密度奇偶校验)码对输入源数据进行编码。 本发明包括以下步骤:通过根据要应用于对输入源数据进行编码的码率减少构成第一奇偶校验矩阵的多个子矩阵的一部分来生成与码率相对应的第二奇偶校验矩阵,并对 使用第二奇偶校验矩阵输入源数据。

    Method of Encoding and Decoding Using LDPC Code
    6.
    发明申请
    Method of Encoding and Decoding Using LDPC Code 有权
    使用LDPC码的编码和解码方法

    公开(公告)号:US20090132886A1

    公开(公告)日:2009-05-21

    申请号:US11575492

    申请日:2005-09-16

    IPC分类号: H03M13/05 G06F11/10

    摘要: A method of encoding/decoding using an LDPC code is disclosed, by which performance is enhanced and by which complexity is reduced. In encoding/decoding using an LDPC code defined by an (n−k)xn parity check matrix H, the present invention includes the step of performing the encoding/decoding input source data using the parity check matrix H including Hp and Hd to Meet H=[Hd|Hp] (where Hd has (n−k)×k dimensions, Hp has (n−k)×(n−k) dimensions), wherein if the Hp comprises a plurality of zXz sub-matrices, each of the sub-matrices is an identity matrix or a zero matrix and wherein a column weight of each column of the Hp is at least 2.

    摘要翻译: 公开了一种使用LDPC码进行编码/解码的方法,通过该方法提高了性能并降低了复杂度。 在使用由(nk)×n个奇偶校验矩阵H定义的LDPC码的编码/解码中,本发明包括使用包括Hp和Hd的奇偶校验矩阵H来执行编码/解码输入源数据的步骤,以满足H = [ Hd | Hp](其中Hd具有(nk)×k维度,Hp具有(nk)×(nk)维度),其中如果Hp包括多个zXz子矩阵,则每个子矩阵是单位矩阵, 零矩阵,其中Hp的每列的列权重至少为2。

    Data communication in a wireless communication system using space-time coding
    7.
    发明申请
    Data communication in a wireless communication system using space-time coding 审中-公开
    使用空时编码的无线通信系统中的数据通信

    公开(公告)号:US20060039328A1

    公开(公告)日:2006-02-23

    申请号:US11205943

    申请日:2005-08-16

    IPC分类号: H04Q7/00

    摘要: A method of controlling data communication in a wireless communication system comprises measuring channel quality from data received from a base station having multiple antennas, wherein the base station and a mobile station are in a closed loop space-time coding (STC) communication. The method also comprises determining a first weight matrix based on a number of the multiple antennas of the base station, the weight matrix comprising weight elements. The method also comprises determining a second weight matrix from the first weight matrix in response to a predetermined condition, wherein the second weight matrix is associated with controlling data output using the multiple antennas of the base station for subsequent transmission. The method also comprises providing a number of STC outputs to the base station, wherein the number of STC outputs is associated with the second weight matrix.

    摘要翻译: 一种控制无线通信系统中的数据通信的方法,包括从具有多个天线的基站接收的数据测量信道质量,其中基站和移动站处于闭环空时编码(STC)通信。 该方法还包括基于基站的多个天线的数量来确定第一权重矩阵,权重矩阵包括权重元素。 所述方法还包括响应于预定条件从所述第一加权矩阵确定第二加权矩阵,其中所述第二加权矩阵与所述基站的所述多个天线的控制数据输出相关联以用于随后的传输。 该方法还包括向基站提供多个STC输出,其中STC输出的数量与第二权重矩阵相关联。

    Method of encoding and decoding using LDPC code and apparatus thereof
    10.
    发明授权
    Method of encoding and decoding using LDPC code and apparatus thereof 有权
    使用LDPC码的编码和解码方法及其装置

    公开(公告)号:US07917827B2

    公开(公告)日:2011-03-29

    申请号:US11575494

    申请日:2005-09-14

    IPC分类号: H03M13/00

    摘要: A method of encoding/decoding using an LDPC code and apparatus thereof are disclosed, by which a memory for storing a parity check matrix can be saved. The present invention includes generating a parity check matrix by expanding a base matrix including a permutation type defining a permutation matrix as at least one element, wherein the permutation matrix is generated from permutating a sequence of at least one of rows and columns of at least one base permutation matrix or rotating the at least one base permutation matrix and encoding or decoding the input data using the parity check matrix.

    摘要翻译: 公开了使用LDPC码进行编码/解码的方法及其装置,由此可以节省用于存储奇偶校验矩阵的存储器。 本发明包括通过将包括定义排列矩阵的置换类型的基本矩阵扩展为至少一个元素来生成奇偶校验矩阵,其中,通过将至少一行行和列的序列的排列生成排列矩阵, 或者旋转所述至少一个基本置换矩阵,并使用所述奇偶校验矩阵对所述输入数据进行编码或解码。