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    Wireless communication apparatus with resource allocation to users performing array combining using array combining weights
    2.
    发明授权
    Wireless communication apparatus with resource allocation to users performing array combining using array combining weights 有权
    无线通信装置，具有资源分配给执行使用阵列组合权重的阵列组合的用户

    公开(公告)号：US08982797B2

    公开(公告)日：2015-03-17

    申请号：US14087875

    申请日：2013-11-22

    Applicant: Sumitomo Electric Industries, Ltd.

    Inventor： Eiji Mochida

    IPC: H04W4/00 ,  H04B7/08 ,  H04L25/02 ,  H04L25/03 ,  H04L27/26 ,  H04W72/04

    CPC classification number: H04B7/0842 ,  H04B7/0854 ,  H04L25/0232 ,  H04L25/03019 ,  H04L27/265 ,  H04L27/2663 ,  H04L27/2672 ,  H04L27/2675 ,  H04L27/2695 ,  H04L2025/03414 ,  H04L2025/03426 ,  H04L2025/03598 ,  H04W72/04

    Abstract: A wireless communication apparatus including an MMSE combining processing unit that performs MMSE combining based on frequency domain received signals obtained by performing a discrete Fourier transform on received signals, the apparatus including an amount-of-phase-rotation estimating unit that estimates an amount of phase rotation occurring in the frequency domain received signals due to a shift in discrete Fourier transform timing of the received signals, and a reverse rotation unit that applies a reverse rotation of an amount of rotation corresponding to the amount of phase rotation estimated by the amount-of-phase-rotation estimating unit, to the frequency domain received signals, wherein the MMSE combining processing unit computes an MMSE weight based on the frequency domain received signals to which the reverse rotation has been applied by the reverse rotation unit, and performs MMSE combining.

    Abstract translation: 一种无线通信装置，包括：MMSE组合处理单元，其基于通过对接收到的信号执行离散傅立叶变换获得的频域接收信号进行MMSE组合，所述装置包括估计相位量的相位旋转估计单元 由于接收信号的离散傅里叶变换定时的移位而在频域接收信号中发生的旋转，以及反转旋转单元，其对与旋转量估计值相对应的相位旋转量相对应的旋转量进行反转 相位旋转估计单元，用于频域接收信号，其中MMSE组合处理单元基于由反向旋转单元施加了反向旋转的频域接收信号来计算MMSE权重，并执行MMSE组合。

    Radio communication device and method of determining weighting matrix
    6.
    发明授权
    Radio communication device and method of determining weighting matrix 有权

    公开(公告)号：US10439688B2

    公开(公告)日：2019-10-08

    申请号：US15525615

    申请日：2015-10-01

    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.

    Inventor： Eiji Mochida ,  Hitoshi Hirata

    IPC: H04B7/04 ,  H04B7/0456 ,  H04B7/06 ,  H04B7/0408

    Abstract: A radio communication device includes: a baseband portion that generates a plurality of transmit signals destined for a same area; an antenna including a plurality of antenna elements; and a signal processing portion that splits each of the plurality of transmit signals generated by the baseband portion into signals for the respective plurality of antenna elements, multiplies each of the plurality of split transmit signals by a corresponding element of a weighting matrix, and then combines those of the transmit signals provided for each corresponding antenna element.

    WIRELESS COMMUNICATION APPARATUS
    7.
    发明申请
    WIRELESS COMMUNICATION APPARATUS 审中-公开
    无线通信设备

    公开(公告)号：US20140119308A1

    公开(公告)日：2014-05-01

    申请号：US14087875

    申请日：2013-11-22

    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.

    Inventor： Eiji Mochida

    IPC: H04B7/08 ,  H04W72/04

    CPC classification number: H04B7/0842 ,  H04B7/0854 ,  H04L25/0232 ,  H04L25/03019 ,  H04L27/265 ,  H04L27/2663 ,  H04L27/2672 ,  H04L27/2675 ,  H04L27/2695 ,  H04L2025/03414 ,  H04L2025/03426 ,  H04L2025/03598 ,  H04W72/04

    Abstract: A wireless communication apparatus including an MMSE combining processing unit that performs MMSE combining based on frequency domain received signals obtained by performing a discrete Fourier transform on received signals, the apparatus including an amount-of-phase-rotation estimating unit that estimates an amount of phase rotation occurring in the frequency domain received signals due to a shift in discrete Fourier transform timing of the received signals, and a reverse rotation unit that applies a reverse rotation of an amount of rotation corresponding to the amount of phase rotation estimated by the amount-of-phase-rotation estimating unit, to the frequency domain received signals, wherein the MMSE combining processing unit computes an MMSE weight based on the frequency domain received signals to which the reverse rotation has been applied by the reverse rotation unit, and performs MMSE combining.

    Abstract translation: 一种无线通信装置，包括：MMSE组合处理单元，其基于通过对接收到的信号执行离散傅立叶变换获得的频域接收信号进行MMSE组合，所述装置包括估计相位量的相位旋转估计单元 由于接收信号的离散傅里叶变换定时的移位而在频域接收信号中发生的旋转，以及反转旋转单元，其对与旋转量估计值相对应的相位旋转量相对应的旋转量进行反转 相位旋转估计单元，用于频域接收信号，其中MMSE组合处理单元基于由反向旋转单元施加了反向旋转的频域接收信号来计算MMSE权重，并执行MMSE组合。

    Amplifier device and wireless communication device
    8.
    发明授权
    Amplifier device and wireless communication device 有权
    放大器和无线通讯装置

    公开(公告)号：US09515614B2

    公开(公告)日：2016-12-06

    申请号：US14770936

    申请日：2014-09-12

    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.

    Inventor： Eiji Mochida

    IPC: H03F1/26 ,  H03F1/32 ,  H03F3/24 ,  H03F3/19

    CPC classification number: H03F1/32 ,  H03F1/3247 ,  H03F1/3258 ,  H03F3/19 ,  H03F3/245 ,  H03F2200/105 ,  H03F2200/207 ,  H03F2200/336 ,  H03F2200/451 ,  H03F2201/3212

    Abstract: An amplifier device 1 includes: a distortion compensation section 3 that performs distortion compensation for an input signal x to an amplifier 2 by digital signal processing; and a separation section 9 that separates an output signal from the amplifier 2 into an I signal as an analog signal component including phase information of the output signal and an analog signal component including power information of the output signal. The distortion compensation section 3 performs distortion compensation for the amplifier 2, based on 1-bit signals obtained by expressing, in 1 bit, the analog I signal and the analog signal component including the power information of the output signal, respectively.

    Abstract translation: 放大器装置1包括：失真补偿部3，其通过数字信号处理对放大器2的输入信号x进行失真补偿; 以及分离部分9，其将来自放大器2的输出信号分离为I信号，作为包括输出信号的相位信息的模拟信号分量和包括输出信号的功率信息的模拟信号分量。 失真补偿部分3基于通过在1比特中表示模拟I信号和包括输出信号的功率信息的模拟信号分量获得的1比特信号来对放大器2执行失真补偿。

    Distortion compensation device, wireless communicator, predistorter, distortion compensation method, and computer program
    9.
    发明授权
    Distortion compensation device, wireless communicator, predistorter, distortion compensation method, and computer program 有权

    公开(公告)号：US11791776B2

    公开(公告)日：2023-10-17

    申请号：US17271008

    申请日：2019-07-18

    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.

    Inventor： Eiji Mochida

    IPC: H03F1/32 ,  H03F3/24 ,  H04B1/04

    CPC classification number: H03F1/32 ,  H03F3/245 ,  H04B1/0475 ,  H03F2200/171 ,  H03F2200/451 ,  H03F2201/3209 ,  H04B2001/0425

    Abstract: A distortion compensation device includes: a first distortion compensation circuit having a first distortion compensation characteristic for compensating for a first distortion occurring in an output of an amplifier, the first distortion compensation circuit being configured to compensate for the first distortion; a second distortion compensation circuit having a second distortion compensation characteristic for compensating for a second distortion occurring in the output of the amplifier, the second distortion compensation circuit being configured to compensate for the second distortion; and an update unit configured to update the second distortion compensation characteristic. The first distortion includes a non-linear distortion and a memory effect distortion, the second distortion is a distortion whose temporal change is quicker than the first distortion, and the update unit updates the second distortion compensation characteristic at a higher frequency than an update frequency of the first distortion compensation characteristic.

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