公开(公告)号：US09838092B2

公开(公告)日：2017-12-05

申请号：US14163423

申请日：2014-01-24

Applicant: Sony Corporation

Inventor： Shigeo Kusunoki

IPC: H04B7/04 ,  H04B7/0452 ,  H04J13/18 ,  H04L5/00

Abstract: A Multiple Input Multiple Output (MIMO) communication method and system for performing communication between N (N is an integer greater than or equal to 2) transmitting devices each having a transmit antenna and at least one receiving device having N receive antennas by using a multi-user MIMO scheme. The method includes dividing the N transmitting devices into a plurality of sets, and assigning an orthogonal code to each set of transmitting devices as a digital signal sequence to be transmitted by each of the transmitting devices, and arranging the digital signal sequences to be transmitted by the transmitting devices in a frequency axis direction in which an inverse fast Fourier transform is performed, and performing coding.

公开(公告)号：US09716534B2

公开(公告)日：2017-07-25

申请号：US14834031

申请日：2015-08-24

Applicant: Sony Corporation

Inventor： Shigeo Kusunoki

IPC: H04B7/02 ,  H04B7/0413 ,  H04B7/0456 ,  H04B7/06 ,  H04B7/08

CPC classification number: H04B7/0413 ,  H04B7/0456 ,  H04B7/0617 ,  H04B7/0691 ,  H04B7/0865

Abstract: A base station that includes a data control circuitry that processes a transmission signal to be simultaneously transmitted to a plurality of mobile terminals; a modulator circuitry that modulates the transmission signal processed by the data control circuitry; a radio frequency modulator circuitry that modulates the transmission signal modulated by the modulator circuitry into a radio frequency transmission signal; and a plurality of antennas that wirelessly transmit the radio frequency transmission signal to the plurality of mobile terminals. In a case that the number of the plurality of mobile terminals to which the transmission signal is to be transmitted is Nv and the number of the plurality of antennas is Nb, the data control circuitry multiplies the transmission signal by a precode matrix.

公开(公告)号：US09350578B2

公开(公告)日：2016-05-24

申请号：US14543954

申请日：2014-11-18

Applicant: Sony Corporation

Inventor： Shigeo Kusunoki

IPC: H04L25/49 ,  H03M3/00 ,  H04L7/00 ,  H04B1/7103 ,  H03F3/217 ,  H04L27/36

CPC classification number: H04L25/4902 ,  H03F3/2175 ,  H03F2200/331 ,  H03M3/30 ,  H03M3/368 ,  H03M3/504 ,  H03M3/51 ,  H04B1/7103 ,  H04L7/0091 ,  H04L27/36

Abstract: To suppress noise generation in a wide band and to suppress a clock speed from being increased in a sigma-delta modulation apparatus and a sigma-delta modulation power amplifier. A sigma-delta modulator creates a sigma-delta modulated signal for a digital output from a digital modulator, according to a clock given in advance. A threshold comparator indexes a portion in which the level of a digital output from the digital modulator is higher than a predetermined threshold and sends the resulting output. A replacing unit replaces the indexed portion with an output from a corresponding thinning unit. A filter unit performs band elimination filter processing on an output from the replacing unit and a digital-to-analog converter (D/A) performs digital-to-analog conversion on an output from the filter unit.

Abstract translation: 为了抑制宽带中的噪声产生并且抑制在Σ-Δ调制装置和Σ-Δ调制功率放大器中增加时钟速度。 Σ-Δ调制器根据预先给出的时钟，从数字调制器产生用于数字输出的Σ-Δ调制信号。 阈值比较器对数字调制器的数字输出电平高于预定阈值的部分进行索引，并发送所得到的输出。 替换单元用相应的稀疏单元的输出替换索引部分。 滤波器单元对来自替换单元的输出执行带除滤波处理，并且数模转换器（D / A）对来自滤波器单元的输出执行数模转换。

公开(公告)号：US20150358092A1

公开(公告)日：2015-12-10

申请号：US14714487

申请日：2015-05-18

Applicant: SONY CORPORATION

Inventor： Shigeo Kusunoki ,  Erik Bengtsson ,  Ying Zhinong

IPC: H04B17/309 ,  H04L5/00 ,  H04L27/26 ,  H04B7/04

CPC classification number: H04B17/309 ,  H04B7/0413 ,  H04J13/004 ,  H04L5/0051 ,  H04L27/2646 ,  H04W24/02

Abstract: A MIMO communication method of performing MIMO communication between a base station having a plurality of antennas and each of a plurality of terminals covered by the base station using uplink data slots and downlink data slots that are alternately placed on a time axis. The method includes, in the base station, despreading a received signal that is transmitted from each of the plurality of terminals demodulating the transmission data transmitted from a respective terminal on the basis of the value of the estimated channel; decoding a received signal included in the uplink data slots, estimating a current channel between each of all antennas of the base station and the respective terminal; and comparing the stored value of the estimated channel with a value of the estimated current channel and updating the stored value of the estimated channel to the value of the estimated current channel.

Abstract translation: 一种在具有多个天线的基站和由基站覆盖的多个终端中的每一个使用上行链路数据时隙和交替放置在时间轴上的下行链路数据时隙的MIMO通信的MIMO通信方法。 该方法在基站中，根据估计的信道的值，对从各个终端发送的发送数据进行解调的多个终端中的每一个发送的接收信号进行解扩; 对包括在上行链路数据时隙中的接收信号进行解码，估计基站的每个天线与相应终端之间的当前信道; 以及将所估计的信道的存储值与估计的当前信道的值进行比较，并将所估计的信道的存储值更新为所估计的当前信道的值。

公开(公告)号：US09166855B2

公开(公告)日：2015-10-20

申请号：US14178898

申请日：2014-02-12

Applicant: Sony Corporation

Inventor： Shigeo Kusunoki

IPC: H04L27/26 ,  H04L5/00 ,  H04L27/34 ,  H04B1/7107 ,  H04B7/04

CPC classification number: H04L27/265 ,  H04B1/71072 ,  H04B7/0413 ,  H04L5/0021 ,  H04L5/0023 ,  H04L5/0026 ,  H04L27/2602 ,  H04L27/2626 ,  H04L27/2628 ,  H04L27/2647 ,  H04L27/34

Abstract: A first digital signal sequence including I and Q digital signal sequences is obtained, the first digital signal sequence being obtained by multiplying each bit of an I-sequence and a Q-sequence in a digital signal sequence system by a first code among codes constituting n-th order (n is an integer) orthogonal codes. A second digital signal sequence is obtained by multiplying I and Q digital signal sequences by a first coefficient greater than 1, the I and Q digital signal sequences being obtained by multiplying each of the bits in the I-sequence and the Q-sequence in the digital signal sequence system by a first code among codes constituting 2n-th order orthogonal codes. The first digital signal sequence and the second digital signal sequence are added on a bit-by-bit basis to create one digital signal sequence, and the one digital signal sequence is transmitted from a single antenna.

Abstract translation: 获得包括I和Q数字信号序列的第一数字信号序列，第一数字信号序列是通过将数字信号序列系统中的I序列和Q序列的每个比特乘以构成n的码中的第一码来获得的 （n为整数）正交码。 通过将I和Q数字信号序列乘以大于1的第一系数获得第二数字信号序列，I和Q数字信号序列是通过将I序列中的每个比特和Q序列中的Q序列相乘而得到的 数字信号序列系统由构成2n阶正交码的码中的第一码构成。 第一数字信号序列和第二数字信号序列逐位地相加以产生一个数字信号序列，并且从单个天线发送一个数字信号序列。

公开(公告)号：US10931335B2

公开(公告)日：2021-02-23

申请号：US15802986

申请日：2017-11-03

Applicant: SONY CORPORATION

Inventor： Shigeo Kusunoki

IPC: H04B7/0452 ,  H04J13/18 ,  H04L5/00

Abstract: A Multiple Input Multiple Output (MIMO) communication method and system for performing communication between N (N is an integer greater than or equal to 2) transmitting devices each having a transmit antenna and at least one receiving device having N receive antennas by using a multi-user MIMO scheme. The method includes dividing the N transmitting devices into a plurality of sets, and assigning an orthogonal code to each set of transmitting devices as a digital signal sequence to be transmitted by each of the transmitting devices, and arranging the digital signal sequences to be transmitted by the transmitting devices in a frequency axis direction in which an inverse fast Fourier transform is performed, and performing coding.

公开(公告)号：US20180351614A1

公开(公告)日：2018-12-06

申请号：US15992816

申请日：2018-05-30

Applicant: SONY CORPORATION

Inventor： Shigeo Kusunoki

IPC: H04B7/0456 ,  H04L27/26 ,  H04L5/00 ,  H04B7/0452 ,  H04J11/00

CPC classification number: H04B7/0456 ,  H04B7/0452 ,  H04J11/003 ,  H04L5/0007 ,  H04L5/0026 ,  H04L27/2634

Abstract: A MIMO communication method for performing MIMO communication between a base station including a plurality of antennas, and a plurality of terminals accommodated in the base station. The method includes, in the base station, dividing the plurality of terminals into a first and a second group, and assigning orthogonal codes with each other to the respective groups, spreading transmission data to the plurality of terminals with the assigned codes, multiplying data obtained by the spreading by a predetermined pre-coding matrix, obtaining a channel matrix representing channels between the plurality of antennas and the plurality of terminals, multiplying data obtained by the multiplying by the pre-coding matrix by a complex conjugate matrix of the channel matrix, and transmitting data obtained by the multiplying by the complex conjugate matrix from the plurality of antennas.

公开(公告)号：US09871565B2

公开(公告)日：2018-01-16

申请号：US14163423

申请日：2014-01-24

Applicant: Sony Corporation

Inventor： Shigeo Kusunoki

IPC: H04B7/04 ,  H04B7/0452 ,  H04J13/18 ,  H04L5/00

CPC classification number: H04B7/0452 ,  H04J13/18 ,  H04L5/0021 ,  H04L5/0026

Abstract: A Multiple Input Multiple Output (MIMO) communication method and system for performing communication between N (N is an integer greater than or equal to 2) transmitting devices each having a transmit antenna and at least one receiving device having N receive antennas by using a multi-user MIMO scheme. The method includes dividing the N transmitting devices into a plurality of sets, and assigning an orthogonal code to each set of transmitting devices as a digital signal sequence to be transmitted by each of the transmitting devices, and arranging the digital signal sequences to be transmitted by the transmitting devices in a frequency axis direction in which an inverse fast Fourier transform is performed, and performing coding.

公开(公告)号：US10555308B2

公开(公告)日：2020-02-04

申请号：US15935298

申请日：2018-03-26

Applicant: SONY CORPORATION ,  SONY MOBILE COMMUNICATIONS INC.

Inventor： Shigeo Kusunoki

IPC: H04W72/04 ,  H04B7/06 ,  H04J11/00 ,  H04B7/0456 ,  H04B1/707 ,  H04J13/00

Abstract: A device includes circuitry configured to spread one or more symbols with one or more orthogonal codes into spread signals having a predetermined number of bits. The amplitude of the spread signals is modified via one or more layer coefficients and the spread signals are multiplexed into a layered transmit signal.

公开(公告)号：US10547360B2

公开(公告)日：2020-01-28

申请号：US15992816

申请日：2018-05-30

Applicant: SONY CORPORATION

Inventor： Shigeo Kusunoki

IPC: H04L5/00 ,  H04B7/0456 ,  H04B7/0452 ,  H04J11/00 ,  H04L27/26

Abstract: A MIMO communication method for performing MIMO communication between a base station including a plurality of antennas, and a plurality of terminals accommodated in the base station. The method includes, in the base station, dividing the plurality of terminals into a first and a second group, and assigning orthogonal codes with each other to the respective groups, spreading transmission data to the plurality of terminals with the assigned codes, multiplying data obtained by the spreading by a predetermined pre-coding matrix, obtaining a channel matrix representing channels between the plurality of antennas and the plurality of terminals, multiplying data obtained by the multiplying by the pre-coding matrix by a complex conjugate matrix of the channel matrix, and transmitting data obtained by the multiplying by the complex conjugate matrix from the plurality of antennas.