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    • 13. 发明申请
    • PRECODING APPARATUS, PROGRAM FOR PRECODING, AND INTEGRATED CIRCUIT
    • 预算装置,预算方案和综合电路
    • US20140177751A1
    • 2014-06-26
    • US14236125
    • 2012-07-20
    • Hiromichi TomebaTakashi OnoderaHiroshi NakanoAlvaro Ruiz Delgado
    • Hiromichi TomebaTakashi OnoderaHiroshi NakanoAlvaro Ruiz Delgado
    • H04L27/26
    • H04L27/2626H04B7/0456H04B7/0617H04L1/00
    • More reduction of the amount of operation than in QRM-VP is realized while maintaining transmission performance that can be achieved by VP. A precoding apparatus 109 that performs preliminary processing on transmission data transmitted from a wireless transmission apparatus including a plurality of antennas to a wireless reception apparatus includes a linear filter generation section 301 that generates a linear filter on the basis of a result of estimation of a channel between an antenna unit 111 and the wireless reception apparatus, a signal conversion section 303 that expands perturbation term candidates of a perturbation vector to be added to a transmission data vector and a reference signal associated with the transmission data in a complex plane, and a perturbation vector search section 305 that searches for the perturbation vector to be added to the transmission data vector by performing a quadrant search on the basis of the perturbation term candidates and the reference signal expanded in the complex plane. A transmission signal vector is calculated by adding a found perturbation vector to the transmission data vector and multiplying the transmission data vector by the linear filter.
    • 在保持VP可实现的传输性能的同时,实现了比QRM-VP中更多的操作量的减少。 对从包括多个天线的无线发送装置发送到无线接收装置的发送数据进行预处理的预编码装置109包括:线性滤波器生成部301,其基于信道的估计结果生成线性滤波器 天线单元111和无线接收装置之间的信号转换部303将复数平面中的发送数据相加的扰动矢量的扰动项候补和与发送数据相关联的参考信号扩展, 矢量搜索部305,其通过基于扰动项候选和在复平面中扩展的参考信号执行象限搜索来搜索要添加到发送数据矢量的扰动向量。 通过将发现的扰动矢量与发送数据矢量相加并将发送数据矢量乘以线性滤波器来计算发送信号矢量。
    • 16. 发明授权
    • Precoding apparatus, program for precoding, and integrated circuit
    • 预编码装置,预编码程序和集成电路
    • US09077599B2
    • 2015-07-07
    • US14236125
    • 2012-07-20
    • Hiromichi TomebaTakashi OnoderaHiroshi NakanoAlvaro Ruiz Delgado
    • Hiromichi TomebaTakashi OnoderaHiroshi NakanoAlvaro Ruiz Delgado
    • H04L27/00H04L27/26H04B7/04H04B7/06H04L1/00
    • H04L27/2626H04B7/0456H04B7/0617H04L1/00
    • More reduction of the amount of operation than in QRM-VP is realized while maintaining transmission performance that can be achieved by VP. A precoding apparatus 109 that performs preliminary processing on transmission data transmitted from a wireless transmission apparatus including a plurality of antennas to a wireless reception apparatus includes a linear filter generation section 301 that generates a linear filter on the basis of a result of estimation of a channel between an antenna unit 111 and the wireless reception apparatus, a signal conversion section 303 that expands perturbation term candidates of a perturbation vector to be added to a transmission data vector and a reference signal associated with the transmission data in a complex plane, and a perturbation vector search section 305 that searches for the perturbation vector to be added to the transmission data vector by performing a quadrant search on the basis of the perturbation term candidates and the reference signal expanded in the complex plane. A transmission signal vector is calculated by adding a found perturbation vector to the transmission data vector and multiplying the transmission data vector by the linear filter.
    • 在保持VP可实现的传输性能的同时,实现了比QRM-VP中更多的操作量的减少。 对从包括多个天线的无线发送装置发送到无线接收装置的发送数据进行预处理的预编码装置109包括:线性滤波器生成部301,其基于信道的估计结果生成线性滤波器 天线单元111和无线接收装置之间的信号转换部303将复数平面中的发送数据相加的扰动矢量的扰动项候补和与发送数据相关联的参考信号扩展, 矢量搜索部305,其通过基于扰动项候选和在复平面中扩展的参考信号执行象限搜索来搜索要添加到发送数据矢量的扰动向量。 通过将发现的扰动矢量与发送数据矢量相加并将发送数据矢量乘以线性滤波器来计算发送信号矢量。
    • 18. 发明申请
    • WIRELESS RECEIVING APPARATUS AND PROGRAM
    • 无线接收设备和程序
    • US20140177763A1
    • 2014-06-26
    • US14235537
    • 2012-07-19
    • Hiromichi TomebaTakashi OnoderaHiroshi NakanoAlvaro Ruiz Delgado
    • Hiromichi TomebaTakashi OnoderaHiroshi NakanoAlvaro Ruiz Delgado
    • H04B7/04H04L25/02
    • H04B7/0478H04B7/0456H04J11/0036H04J11/0063H04L25/0212H04L25/0224H04L25/025H04L27/2647
    • A data signal component output from a reference signal demultiplexer and channel state information obtained by using DM-RS output from a channel estimating unit are input into a modulo estimating unit. In a channel compensator, a first provisional decision value sequence is calculated on the basis of the channel state information. The first provisional decision value sequence is input into a modulo calculator, and modulo calculations are performed on the first provisional decision value sequence to obtain a second provisional decision value sequence. A decision-feedback channel estimating section finds a first channel estimation value based on the first provisional decision value sequence and a second channel estimation value based on the second provisional decision value sequence. A modulo decision section decides whether or not a perturbation term has been added to a code, and uses a decision result for the selection of a demodulation method.
    • 从参考信号解复用器输出的数据信号分量和通过使用从信道估计单元输出的DM-RS获得的信道状态信息被输入到模估计单元中。 在信道补偿器中,基于信道状态信息来计算第一临时判定值序列。 第一临时判定值序列被输入到模运算器中,并且对第一临时判定值序列进行模运算以获得第二临时判定值序列。 判定反馈信道估计部基于第一临时判定值序列和基于第二临时判定值序列的第二信道估计值,求出第一信道估计值。 模决定部判定是否将扰动项添加到代码中,并且使用用于选择解调方法的判定结果。