专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2008071884A2 METHOD AND DEVICE FOR DECODING LDPC CODES AND COMMUNICATION APPARATUS INCLUDING SUCH DEVICE 审中-公开
标题翻译：用于解码LDPC码的方法和设备以及包括这种设备的通信设备
公开(公告)号：WO2008071884A2
公开(公告)日：2008-06-19
申请号：PCT/FR2007001963
申请日：2007-11-29
申请人： COMMISSARIAT ENERGIE ATOMIQUE , SAVIN VALENTIN
发明人： SAVIN VALENTIN
IPC分类号： H03M13/11
CPC分类号： H03M13/1171 , H03M13/1117 , H03M13/112 , H03M13/1122 , H03M13/3723 , H03M13/3916 , H03M13/6583
摘要： The invention relates to a device for the iterative decoding of a received word represented by signal values according to a parity control matrix code of the type for passing messages between variable nodes and control nodes of a two-part graph related to said matrix, wherein said method includes at least the following steps: setting up at least one message of a variable node, according to said values, by an information representative of the ratio between the probability of having the most likely symbol at a position corresponding to the variable node and the probability of having the current symbol at said position; determining at least one message, relating to a determined symbol, of a control node to a determined variable node, as the selected minimal value, among the symbol sequences corresponding to the control node equation using said determined symbol at the determined variable node, by the maximal value of the messages received at the control node from variable nodes different from the determined variable node and each relating to the symbol associated with said different variable node in the sequence corresponding to the equation; and determining the messages of a variable node to a control node that relate to the whole set of symbols so that the minimal value of said messages is equal to zero.
摘要翻译：本发明涉及一种用于根据用于在可变节点和与所述矩阵相关的两部分图形的控制节点之间传递消息的类型的奇偶控制矩阵码对由信号值表示的接收字进行迭代解码的装置，其中所述方法至少包括以下步骤：根据所述值，通过表示在与可变节点相对应的位置具有最可能的符号的概率与所述可变节点之间的比率的信息来设置变量节点的至少一个消息在所述位置具有当前符号的概率; 在使用所确定的变量节点处的所述确定的符号的与控制节点等式对应的符号序列中，将与所确定的变量节点的控制节点有关的至少一个消息与所确定的变量节点确定为所选择的最小值，来自与所确定的变量节点不同的变量节点在控制节点处接收的消息的最大值，并且每个与在与等式对应的序列中与所述不同变量节点相关联的符号相关; 以及将变量节点的消息确定到与整个符号集合相关的控制节点，使得所述消息的最小值等于零。

IPRDB

热门服务

关于我们

友情链接

联系方式