Multiple antenna communication system
    72.
    发明申请
    Multiple antenna communication system 审中-公开
    多天线通信系统

    公开(公告)号:US20060209975A1

    公开(公告)日:2006-09-21

    申请号:US11304096

    申请日:2005-12-15

    IPC分类号: H04K1/10 H04L1/02

    CPC分类号: H04L1/0687 H04L27/2601

    摘要: A multiple antenna communication system is provided. In the multiple antenna communication system, a receiver selects a transmit eigenvector corresponding to a singular value resulting from the Singular Value Decomposition (SVD) of a channel matrix between Tx antennas and Rx antennas and feeds back the transmit eigenvector to a transmitter to assist the transmitter in selecting transmission data. Thus, the efficiency of data transmission is increased.

    摘要翻译: 提供多天线通信系统。 在多天线通信系统中,接收机选择对应于由Tx天线和Rx天线之间的信道矩阵的奇异值分解(SVD)产生的奇异值的发射特征向量,并将发射特征向量反馈到发射机,以帮助发射机 在选择传输数据时。 因此,数据传输的效率增加。

    Apparatus and method for transmitting/receiving signal in a communication system
    77.
    发明授权
    Apparatus and method for transmitting/receiving signal in a communication system 有权
    在通信系统中发送/接收信号的装置和方法

    公开(公告)号:US07908541B2

    公开(公告)日:2011-03-15

    申请号:US11751339

    申请日:2007-05-21

    IPC分类号: H03M13/00

    摘要: A signal transmission apparatus in a communication system is disclosed. A channel interleaver generates an interleaved vector by channel-interleaving a Low Density Parity Check (LDPC) codeword according to a channel interleaving rule, and a modulator generates a modulation symbol by modulating the interleaved vector according to a modulation scheme. The channel interleaving rule is one of a first channel interleaving rule and a second channel interleaving rule. The first 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. The second channel interleaving rule is a rule for allowing coded bits included in the LDPC codeword to be interleaved according to an unequal error characteristic of the modulation scheme.

    摘要翻译: 公开了一种通信系统中的信号发送装置。 信道交织器根据信道交织规则通过对低密度奇偶校验(LDPC)码字进行信道交织来生成交错矢量,并且调制器通过根据调制方式调制交织向量来产生调制符号。 信道交织规则是第一信道交织规则和第二信道交织规则之一。 第一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。 第二信道交织规则是用于允许根据调制方案的不等错误特性来交织包含在LDPC码字中的编码比特的规则。