Method and apparatus for mapping quadrature amplitude modulation symbol
    1.
    发明授权
    Method and apparatus for mapping quadrature amplitude modulation symbol 有权
    用于映射正交幅度调制符号的方法和装置

    公开(公告)号:US08861642B2

    公开(公告)日:2014-10-14

    申请号:US13616506

    申请日:2012-09-14

    IPC分类号: H04L27/36 H04L27/26 H04L1/00

    摘要: A method and an apparatus for mapping a quadrature amplitude modulation (QAM) symbol. The QAM symbol mapping apparatus includes a frequency checker, which checks frequencies of sub-carriers in an orthogonal frequency division multiplexing (OFDM) symbol; and a data categorizer, which maps data coded for error correction and uncoded data to the sub-carriers based on the checked frequencies, wherein the data categorizer maps a combination of the coded data and the uncoded data with respect to sub-carriers having frequencies lower than a reference frequency.

    摘要翻译: 一种用于映射正交幅度调制(QAM)符号的方法和装置。 QAM符号映射装置包括频率检验器,其对正交频分复用(OFDM)符号中的子载波的频率进行检查; 以及数据分类器,其基于所检查的频率将用于纠错和未编码数据编码的数据映射到子载波,其中数据分类器针对具有频率较低的子载波来映射编码数据和未编码数据的组合 比参考频率。

    METHOD AND APPARATUS FOR MAPPING QUADRATURE AMPLITUDE MODULATION SYMBOL
    2.
    发明申请
    METHOD AND APPARATUS FOR MAPPING QUADRATURE AMPLITUDE MODULATION SYMBOL 有权
    用于映射四边形振幅调制符号的方法和装置

    公开(公告)号:US20130121442A1

    公开(公告)日:2013-05-16

    申请号:US13616506

    申请日:2012-09-14

    IPC分类号: H04L27/36

    摘要: A method and an apparatus for mapping a quadrature amplitude modulation (QAM) symbol. The QAM symbol mapping apparatus includes a frequency checker, which checks frequencies of sub-carriers in an orthogonal frequency division multiplexing (OFDM) symbol; and a data categorizer, which maps data coded for error correction and uncoded data to the sub-carriers based on the checked frequencies, wherein the data categorizer maps a combination of the coded data and the uncoded data with respect to sub-carriers having frequencies lower than a reference frequency.

    摘要翻译: 一种用于映射正交幅度调制(QAM)符号的方法和装置。 QAM符号映射装置包括频率检验器,其对正交频分复用(OFDM)符号中的子载波的频率进行检查; 以及数据分类器,其基于所检查的频率将用于纠错和未编码数据编码的数据映射到子载波,其中数据分类器针对具有频率较低的子载波来映射编码数据和未编码数据的组合 比参考频率。