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    • 8. 发明公开
    • 통신 시스템에서 신호 송수신 장치 및 방법
    • 用于在通信系统中发送/接收信号的装置和方法
    • KR1020070112327A
    • 2007-11-23
    • KR1020060045418
    • 2006-05-20
    • 삼성전자주식회사포항공과대학교 산학협력단
    • 경규범최승훈정홍실박동식김재열박성은양현구양경철
    • H04L1/00
    • H03M13/11H03M13/255H03M13/27
    • An apparatus and a method for transmitting/receiving signals in a communication system are provided to increase reliabilities of low-reliability bits among the bits constituting an LDPC code through channel interleaving. An interleaved vector is generated by channel-interleaving a Low Density Parity Check(LDPC) codeword according to a channel interleaving rule. A modulation symbol is generated by modulating the interleaved vector according to a modulation scheme. The channel interleaving rule is a rule for setting degree distribution for nodes in a factor graph of the LDPC codeword separately for individual levels supported by the modulation scheme, or a rule for allowing coded bits included in the LDPC codeword to be interleaved according to an unequal error characteristic of the modulation scheme.
    • 提供一种用于在通信系统中发送/接收信号的装置和方法,以通过信道交织来增加构成LDPC码的比特中的低可靠性比特的可靠性。 通过根据信道交织规则对低密度奇偶校验(LDPC)码字进行信道交织来生成交织向量。 通过根据调制方式调制交织向量来生成调制符号。 信道交织规则是用于针对由调制方案支持的各个级别分别设置LDPC码字的因子图中的节点的度数分布的规则,或者允许根据不等式来交织包含在LDPC码字中的编码比特的规则 调制方案的误差特性。