Method and apparatus for forward error correction
    1.
    发明授权
    Method and apparatus for forward error correction 有权
    前向纠错方法和装置

    公开(公告)号:US08498326B1

    公开(公告)日:2013-07-30

    申请号:US12804545

    申请日:2010-07-23

    IPC分类号: H04L27/00

    摘要: A multi-tone transceiver with a components forming a transmit path and a receive path configured to couple via a subscriber line to an opposing multi-tone transceiver for frequency division multiplexed multi-tone modulated communications therewith is disclosed. A noise margin channel identifier is configured to identify within a received tone set, discrete tones each associated with a corresponding one of at least two channels differing from one another in a relative noise margin of associated tones. A Viterbi decoder is responsive to the channel identification provided by the noise margin channel identifier to discretely decode each of the at least two channels; thereby improving the fidelity of the error correction provided by the Viterbi decoder by discretely processing the identified channels within the received set of tones.

    摘要翻译: 公开了具有形成发送路径的组件和被配置为经由用户线耦合到相对的多音调收发器以用于频分复用多音调调制通信的多音调收发器。 噪声容限信道标识符被配置为在接收到的音调集合内识别在相关联音调的相对噪声容限中彼此不同的至少两个信道中的相应一个信道中的每一个相关联的离散音调。 维特比解码器响应于由噪声容限信道标识符提供的信道标识,离散地解码至少两个信道中的每一个; 从而通过离散地处理所接收的音调集合中的所识别的频道来提高由维特比解码器提供的纠错的保真度。