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    WIRELESS COMMUNICATION DEVICE AND METHOD
    7.
    发明公开
    WIRELESS COMMUNICATION DEVICE AND METHOD 审中-公开

    公开(公告)号：EP3193453A4

    公开(公告)日：2018-05-02

    申请号：EP15840188

    申请日：2015-09-02

    申请人： HITACHI INT ELECTRIC INC

    发明人： ITO KEI

    IPC分类号： H03M13/45 ,  H03M13/25 ,  H04L1/00 ,  H04L27/34

    CPC分类号： H04L1/0041 ,  H03M13/27 ,  H03M13/2792 ,  H03M13/3723 ,  H03M13/4138 ,  H03M13/45 ,  H03M13/612 ,  H03M13/6508 ,  H04L1/0047 ,  H04L1/005 ,  H04L1/0071 ,  H04L25/03891 ,  H04L27/0008 ,  H04L27/18 ,  H04L27/22 ,  H04L27/34 ,  H04L27/38

    摘要： The present invention carries out SISO decoding of a reception signal having a scrambled symbol arrangement using a process having reduced complexity. Coordinates are generated for a reference point obtained not through scrambling and mapping of a symbol reference point position but through scrambling and mapping of a symbol number. This reference point simulates transmission-side scrambling and is generated for each symbol number by a first mapping means. Because the binary expression of a corresponding original signal number is retained, a bit likelihood calculation means can easily calculate a bit likelihood based on the distance between the reference point and a reception signal. The calculated bit likelihood is thereafter deinterleaved and subjected to SISO error-correcting decoding. The thus obtained bit likelihood is then reinterleaved and used to calculate a symbol probability. Soft symbols are generated through the multiplication of all the calculated symbol probabilities by corresponding reference points output by a second mapping means similar to the first mapping means.

    PRECODING METHOD, PRECODING DEVICE
    8.
    发明公开
    PRECODING METHOD, PRECODING DEVICE 审中-公开
    预先设定方法，预先设定

    公开(公告)号：EP3301837A1

    公开(公告)日：2018-04-04

    申请号：EP17201238.7

    申请日：2012-02-17

    申请人： Sun Patent Trust

    发明人： MURAKAMI, Yutaka ,  KIMURA, Tomohiro ,  OUCHI, Mikihiro

    IPC分类号： H04J99/00 ,  H04B7/02 ,  H04B7/04 ,  H04J11/00

    CPC分类号： H04B7/0456 ,  H04B7/0413 ,  H04B7/0469 ,  H04B7/0617 ,  H04L1/005 ,  H04L1/0057 ,  H04L25/03171 ,  H04L25/03942 ,  H04L25/03949 ,  H04L27/18 ,  H04L27/2626 ,  H04L27/34

    摘要： Disclosed is a precoding method for generating, from a plurality of baseband signals, a plurality of preceded signals that are transmitted in the same frequency bandwidth at the same time. According to the precoding method, one matrix is selected from among matrices defining a precoding process that is performed on the plurality of baseband signals by hopping between the matrices. A first baseband signal and a second baseband signal relating to a first coded block and a second coded block generated by using a predetermined error correction block coding scheme satisfy a given condition.

    摘要翻译： 公开了一种预编码方法，用于从多个基带信号中生成同时在相同频率带宽上发送的多个在先信号。 根据预编码方法，从定义通过在矩阵之间跳跃对多个基带信号执行的预编码处理的矩阵中选择一个矩阵。 与通过使用预定误差校正块编码方案产生的第一编码块和第二编码块有关的第一基带信号和第二基带信号满足给定条件。

    Method for detection of symbols in communication signals
    10.
    发明授权
    Method for detection of symbols in communication signals 有权
    通信信号中符号的检测方法

    公开(公告)号：EP2858285B1

    公开(公告)日：2018-01-10

    申请号：EP13187322.6

    申请日：2013-10-04

    申请人： Huawei Technologies Co., Ltd.

    发明人： Rusek, Fredrik

    IPC分类号： H04L1/00 ,  H04L25/03

    CPC分类号： H04L1/005 ,  H04L25/03171 ,  H04L25/03286 ,  H04L25/03318

    摘要： The present invention relates to method for detection of symbols, comprising: receiving at least one communication signal y transmitted over a radio channel H, and receiving a priori LLRs of said channel inputs x; computing soft symbol estimates µ and variance D of said channel inputs x based on LLRs of said channel inputs x; filtering and interference cancelling said received signal y by using a first filter and filtered soft symbol estimates µ so as to obtain a filtered and interference cancelled received signal; estimating MSE matrix B of said filtered and interference cancelled received signal; computing an optimal matrix G opt for a BCJR algorithm based on said MSE estimate B ; further filtering said filtered and interference cancelled received signal by using a second filter so as to obtain an input signal r to the BCJR algorithm; and feeding said input signal r into the BCJR algorithm.