公开(公告)号：US10003389B2

公开(公告)日：2018-06-19

申请号：US14714566

申请日：2015-05-18

Applicant: SONY CORPORATION

Inventor： Shigeo Kusunoki

IPC: H04W4/00 ,  H04B7/0456 ,  H04L5/00 ,  H04B7/0452 ,  H04J11/00 ,  H04L27/26

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：US09930671B2

公开(公告)日：2018-03-27

申请号：US14821358

申请日：2015-08-07

Applicant: SONY CORPORATION

Inventor： Shigeo Kusunoki

IPC: H04W4/00 ,  H04W72/04 ,  H04J11/00 ,  H04B7/0456 ,  H04B7/06 ,  H04J13/00 ,  H04B1/707

CPC classification number: H04W72/0466 ,  H04B1/707 ,  H04B7/0456 ,  H04B7/0678 ,  H04J11/00 ,  H04J13/0048 ,  H04L5/0016 ,  H04L5/0042

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：US09197302B2

公开(公告)日：2015-11-24

申请号：US14507404

申请日：2014-10-06

Applicant: Sony Corporation

Inventor： Shigeo Kusunoki

IPC: H04L1/02 ,  H04B7/04 ,  H04B7/06 ,  H04L5/00 ,  H04L5/02 ,  H04L27/26

CPC classification number: H04B7/0456 ,  H04B7/0639 ,  H04J13/004 ,  H04L5/0021 ,  H04L5/026 ,  H04L27/2626 ,  H04L27/2628 ,  H04L27/2647 ,  H04L27/265

Abstract: A method of achieving diversity in a multiple-input-multiple-output (MIMO) communication system. The MIMO communication system has a lower number of receiving antennas compared to the number of transmitting antennas. In the MIMO communication system, selection diversity is achieved by using a switch that selectively chooses a receiver antenna based on a signal to noise ratio of the signal captured by the receiving antenna. Alternatively, the signals that are received by the respective receiving antennas are combined in order to achieve combination diversity.

Abstract translation: 一种实现多输入多输出（MIMO）通信系统中的分集的方法。 与发送天线的数量相比，MIMO通信系统具有较少数量的接收天线。 在MIMO通信系统中，通过使用基于由接收天线捕获的信号的信噪比选择性地选择接收机天线的开关来实现选择分集。 或者，由各个接收天线接收的信号被组合以实现组合分集。

公开(公告)号：US11245447B2

公开(公告)日：2022-02-08

申请号：US16695255

申请日：2019-11-26

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.

公开(公告)号：US10090945B2

公开(公告)日：2018-10-02

申请号：US15804290

申请日：2017-11-06

Applicant: SONY CORPORATION ,  SONY MOBILE COMMUNICATIONS INC.

Inventor： Shigeo Kusunoki ,  Erik Bengtsson ,  Ying Zhinong

IPC: H04B17/309 ,  H04L5/00 ,  H04L27/26 ,  H04B7/0413 ,  H04J13/00 ,  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.

公开(公告)号：US09831963B2

公开(公告)日：2017-11-28

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 ,  H04W24/02 ,  H04B7/0413 ,  H04J13/00

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.

公开(公告)号：US20140247812A1

公开(公告)日：2014-09-04

申请号：US14163423

申请日：2014-01-24

Applicant: Sony Corporation

Inventor： Shigeo Kusunoki

IPC: H04B7/04 ,  H04J13/18

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.

Abstract translation: 一种用于在N（N是大于或等于2的整数）之间进行通信的多输入多输出（MIMO）通信方法和系统，每个具有发射天线的发射设备和具有N个接收天线的至少一个接收设备通过使用多 用户MIMO方案。 该方法包括将N个发送设备划分为多个集合，并将正交码分配给每组发送设备作为将由每个发送设备发送的数字信号序列，以及将要发送的数字信号序列 执行快速傅立叶逆变换的频率轴方向的发送装置，进行编码。