Correction of errors in a codeword
    1.
    发明公开
    Correction of errors in a codeword 有权
    肯尼克斯特的Korrektur von Fehlern

    公开(公告)号:EP2285003A1

    公开(公告)日:2011-02-16

    申请号:EP09305751.1

    申请日:2009-08-12

    申请人: Alcatel Lucent

    IPC分类号: H03M13/09 G06F17/30

    摘要: It is disclosed a method for correcting one or more errors in a codeword received at a network element of a communication network. The method comprises, before receiving the codeword, storing at the network element an error correction table comprising N correction information allowing to correct N correctable error patterns possibly affecting the codeword. The method further comprises, upon reception of the codeword at the network element: calculating a syndrome of the codeword; calculating an address applying an hash function to the calculated syndrome; using the calculated address for selecting in the error correction table one of the N correction information; and using the selected correction information for correcting one or more errors affecting the codeword.

    摘要翻译: 公开了一种用于校正在通信网络的网络单元处接收的码字中的一个或多个错误的方法。 所述方法包括:在接收到所述码字之前,在所述网络单元处存储包括N个校正信息的纠错表,所述纠错表允许修正可能影响所述码字的N个可校正错误模式。 所述方法还包括:在所述网元处接收到所述码字;计算所述码字的综合征; 计算应用散列函数到所计算的综合征的地址; 使用所计算的地址在所述纠错表中选择所述N个校正信息之一; 以及使用所选择的校正信息来校正影响码字的一个或多个错误。