公开(公告)号：US20120315956A1

公开(公告)日：2012-12-13

申请号：US13579674

申请日：2011-01-13

Applicant: Eiji Mochida ,  Kenichi Murakami

Inventor： Eiji Mochida ,  Kenichi Murakami

IPC: H04W88/08

CPC classification number: H04W88/08 ,  H04J11/005 ,  H04W28/04 ,  H04W68/00 ,  H04W84/045

Abstract: When installing a femto base station device 1b, failure that may occur in wireless communication is suppressed. The femto base station device 1b includes an RF unit 4 which transmits broadcast information or paging information to a femto terminal device 2b communicating with the femto base station device 1b, and an information storage unit 31 which adds and stores, in the broadcast information or the paging information, location information that relates to the location of the femto base station device 1b and is used by another wireless communication device to suppress interference.

Abstract translation: 在安装毫微微基站装置1b时，能够抑制无线通信中发生的故障。 毫微微基站装置1b包括向与毫微微基站装置1b通信的毫微微终端装置2b发送广播信息或寻呼信息的RF单元4，以及信息存储单元31，其在广播信息或 寻呼信息，与毫微微基站装置1b的位置有关的位置信息，由另一无线通信装置用于抑制干扰。

公开(公告)号：US20120282889A1

公开(公告)日：2012-11-08

申请号：US13520890

申请日：2011-01-06

Applicant: Yoshizo Tanaka ,  Takashi Yamamoto ,  Yoji Okada ,  Eiji Mochida

Inventor： Yoshizo Tanaka ,  Takashi Yamamoto ,  Yoji Okada ,  Eiji Mochida

IPC: H04B15/00 ,  H04W72/08 ,  H04W24/00

CPC classification number: H04L5/0032 ,  H04J11/0053 ,  H04J11/0056 ,  H04W24/02 ,  H04W28/04 ,  H04W48/16 ,  H04W52/225 ,  H04W52/244 ,  H04W52/245 ,  H04W52/283 ,  H04W72/04 ,  H04W72/082 ,  H04W88/08

Abstract: A base station device is provided with a control information obtaining unit (23) that obtains allocation information indicating an allocation status, for each resource block, of a radio resource allocated to another terminal device that communicates with another base station device, and an output control unit (20) that controls a transmission power of a downlink signal of the base station device and/or a transmission power of an uplink signal of a terminal device connected to the base station device, for each resource block, based on the allocation information. Therefore, the base station device is capable of suppressing interference more effectively depending on various situations.

Abstract translation: 基站装置具备控制信息获取部（23），该控制信息取得部（23）获取分配给与其他基站装置进行通信的其他终端装置分配的无线资源的各资源块的分配状态的分配信息，以及输出控制 基于分配信息，对于每个资源块，控制基站装置的下行链路信号的发送功率和/或连接到基站装置的终端装置的上行链路信号的发送功率的单元（20）。 因此，基站装置能够根据各种情况更有效地抑制干扰。

公开(公告)号：US09014149B2

公开(公告)日：2015-04-21

申请号：US13514701

申请日：2011-01-18

Applicant: Eiji Mochida

Inventor： Eiji Mochida

IPC: H04W4/00 ,  H04W28/04 ,  H04W72/04 ,  H04W72/12 ,  H04W84/04

CPC classification number: H04W28/048 ,  H04W28/04 ,  H04W72/04 ,  H04W72/12 ,  H04W84/045

Abstract: There is provided a communication apparatus capable of effectively removing interference waves from a received signal while reducing the computation load. The communication apparatus includes a weight calculating unit. The weight calculating unit includes a calculating unit and a selecting unit. The calculating unit calculates a first weight and a second weight. The first weight is obtained, for a target known signal being an update target, by updating, using the target known signal, a weight of a first another known signal updated immediately before performing an update using the target known signal. The second weight is obtained, for a target known signal being an update target, by updating, using the target known signal, a weight of a second another known signal. The selecting unit selects one of the first weight and the second weight that has a lower estimation error.

Abstract translation: 提供一种能够在减少计算负荷的同时有效地从接收信号中去除干扰波的通信装置。 通信装置包括权重计算单元。 权重计算单元包括计算单元和选择单元。 计算单元计算第一权重和第二权重。 对于作为更新目标的目标已知信号，通过使用目标已知信号通过使用目标已知信号更新紧接在执行更新之前的第一另外已知信号的权重，获得第一权重。 对于作为更新对象的目标已知信号，通过使用目标已知信号更新第二另一个已知信号的权重，获得第二权重。 选择单元选择具有较低估计误差的第一权重和第二权重之一。

公开(公告)号：US08687514B2

公开(公告)日：2014-04-01

申请号：US13393430

申请日：2010-10-04

Applicant: Takashi Yamamoto ,  Eiji Mochida ,  Yoshizo Tanaka

Inventor： Takashi Yamamoto ,  Eiji Mochida ,  Yoshizo Tanaka

IPC: H04B7/10 ,  H04W16/28 ,  H04W4/00

CPC classification number: H04B7/063 ,  H04B7/0617 ,  H04B7/086 ,  H04W16/28

Abstract: Interference suppression by beam forming is achieved even in an FDD (Frequency Division Duplex) system. A base station device 1 performs communication based on FDD. The base station device 1 includes a downlink signal reception unit 12 that receives a downlink signal transmitted from another base station device. The base station device 1 performs a beam forming process for directing a null beam to an arrival direction of the downlink signal from the another base station device, by using transmission path information between the base station device and the another base station device, the information being available from the downlink signal received by the downlink signal reception unit 12.

Abstract translation: 即使在FDD（频分双工）系统中也能实现波束形成的干扰抑制。 基站装置1进行基于FDD的通信。 基站装置1包括：接收从另一个基站装置发送的下行链路信号的下行链路信号接收部12。 基站装置1通过使用基站装置与另一基站装置之间的传输路径信息，执行用于将空波束引导到来自另一基站装置的下行链路信号的到达方向的波束形成处理，信息为 可从下行链路信号接收单元12接收的下行链路信号获得。

公开(公告)号：US20120225646A1

公开(公告)日：2012-09-06

申请号：US13505522

申请日：2010-10-29

Applicant: Eiji Mochida ,  Hirotsugu Yamamoto ,  Kenichi Murakami

Inventor： Eiji Mochida ,  Hirotsugu Yamamoto ,  Kenichi Murakami

IPC: H04W76/00 ,  H04W24/00 ,  H04W88/00

CPC classification number: H04W92/20 ,  H04W4/20 ,  H04W36/0055 ,  H04W72/04 ,  H04W84/042 ,  H04W84/045

Abstract: A communication system (1) includes a mobile communication network (2); a fixed communication network (3) connected to the mobile communication network (2); and a plurality of radio base stations capable of communicating with a mobile terminal (100) by radio communication. The radio base stations include a first base station (41, 42) connected to the mobile communication network (2); and second base stations (51, 52) connected to the fixed communication network (3) through wire communication lines (61, 62). A communication connection using a predetermined interface is established between one of the second base stations (51) and one of neighboring base stations (the first base station (42) and another one of the second base stations (52)) located in the neighborhood of the one of the second base stations (51).

Abstract translation: 通信系统（1）包括移动通信网络（2）; 连接到移动通信网络（2）的固定通信网络（3）; 以及能够通过无线电通信与移动终端（100）通信的多个无线电基站。 无线基站包括连接到移动通信网络（2）的第一基站（41,42）。 以及通过有线通信线路（61,62）连接到固定通信网络（3）的第二基站（51,52）。 在第二基站（51）中的一个与位于邻近基站（51）附近的相邻基站（第一基站（42）和另一个第二基站（52））中的一个之间建立使用预定接口的通信连接 第二基站（51）之一。

公开(公告)号：US20120201221A1

公开(公告)日：2012-08-09

申请号：US13501804

申请日：2010-10-26

Applicant: Eiji Mochida

Inventor： Eiji Mochida

IPC: H04W72/04 ,  H04L27/00

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 decrease in weight calculation accuracy in MMSE combining caused by a shift in the discrete Fourier transform timing of received signals is prevented. A wireless communication apparatus BS1 includes an MMSE combining processing unit 31 that performs MMSE combining based on frequency domain received signals obtained by performing a discrete Fourier transform on received signals. The wireless communication apparatus BS1 includes an amount-of-phase-rotation estimating unit 32 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 reverse rotation units 33a and 33b that apply a reverse rotation of an amount of rotation corresponding to the amount of phase rotation estimated by the amount-of-phase-rotation estimating unit 32, to the frequency domain received signals. The MMSE combining processing unit 31 computes an MMSE weight based on the frequency domain received signals to which the reverse rotation has been applied by the reverse rotation units 33a and 33b, and performs MMSE combining.

Abstract translation: 防止由接收信号的离散傅里叶变换定时的移位导致的MMSE组合中的权重计算精度的降低。 无线通信装置BS1包括MMSE组合处理单元31，MMSE组合处理单元31基于通过对接收到的信号执行离散付里叶变换获得的频域接收信号进行MMSE组合。 无线通信装置BS1包括：相位旋转估计部32，估计由于接收信号的离散傅里叶变换定时的移位而产生的频域接收信号中的相位旋转量; 以及将与由相位旋转估计单元32估计的相位旋转相对应的旋转量的反转的反转单元33a和33b用于频域接收信号。 MMSE组合处理单元31基于由反转单元33a和33b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。

公开(公告)号：US20110286412A1

公开(公告)日：2011-11-24

申请号：US13128118

申请日：2009-10-26

Applicant: Eiji Mochida ,  Mitsuru Hirakawa

Inventor： Eiji Mochida ,  Mitsuru Hirakawa

IPC: H04W72/04

CPC classification number: H04B7/0868 ,  H04B7/0452 ,  H04B7/0686 ,  H04J11/005

Abstract: A communication apparatus capable of simultaneously receiving signals from a plurality of users by an SC-FDMA scheme reduces its circuit size. A communication apparatus BS1, BS2 is capable of simultaneously receiving signals from a plurality of users by the SC-FDMA scheme. The communication apparatus BS1, BS2 includes a plurality of antennas 1a and 1b; a processing unit 6 that performs multi-antenna signal processing on a plurality of received SC-FDMA signals in a frequency domain, the received SC-FDMA signals being received by the plurality of antennas 1a and 1b; and a user separating unit 7 that demultiplexes a signal obtained through the multi-antenna signal processing, into signals for each user based on user allocation information in the SC-FDMA scheme.

Abstract translation: 能够通过SC-FDMA方式同时从多个用户接收信号的通信装置减小其电路尺寸。 通信装置BS1，BS2能够通过SC-FDMA方案同时从多个用户接收信号。 通信装置BS1，BS2包括多个天线1a和1b; 在频域中对多个接收到的SC-FDMA信号执行多天线信号处理的处理单元6，所接收的SC-FDMA信号由多个天线1a和1b接收; 以及根据SC-FDMA方案中的用户分配信息，将通过多天线信号处理获得的信号解复用为每个用户的信号的用户分离单元7。