公开(公告)号：US09271264B2

公开(公告)日：2016-02-23

申请号：US14113488

申请日：2012-04-25

申请人： Takeo Miyata

发明人： Takeo Miyata

IPC分类号： H04W72/04 ,  H04W72/12 ,  H04L5/00

CPC分类号： H04W72/04 ,  H04L5/0007 ,  H04L5/003 ,  H04W72/12

摘要： When a scheduling executing section allocates a use downlink radio resource including in a frequency direction a frequency band, in which a known signal is not received by an uplink radio resource for known signal, from a downlink radio resource associated with the uplink radio resource for known signal to a communication terminal, a communication section generates a known signal to be received from the communication terminal in a frequency band of the use downlink radio resource in a pseudo manner when performing downlink communication with the communication terminal using the use downlink radio resource. The communication section controls transmission directivity in a plurality of antennas based on a new reception signal obtained by adding the pseudo known signal as a desired wave component to a reception signal that is received in the frequency band of the use downlink radio resource in the uplink radio resource for known signal.

摘要翻译： 当调度执行部从与上行链路无线资源相关联的下行链路无线资源中分配包括在频率方向上的已知信号未被已知信号的上行链路无线资源接收到的已知信号的使用下行无线资源时， 信号发送到通信终端，当使用下行链路无线电资源执行与通信终端的下行链路通信时，通信部分以伪方式，在使用下行链路无线电资源的频带中从通信终端接收的已知信号。 通信部基于通过将作为期望波分量的伪已知信号添加到在上行链路无线电中的使用下行链路无线资源的频带中接收到的接收信号而获得的新的接收信号来控制多个天线中的发送方向性 已知信号的资源。

公开(公告)号：US09144024B2

公开(公告)日：2015-09-22

申请号：US13700072

申请日：2011-05-26

申请人： Takeo Miyata

发明人： Takeo Miyata

IPC分类号： H04J3/00 ,  H04W52/02 ,  H04W52/24 ,  H04W52/32 ,  H04W52/14 ,  H04W52/38

CPC分类号： H04W52/0258 ,  H04L43/062 ,  H04W28/0236 ,  H04W52/0229 ,  H04W52/143 ,  H04W52/244 ,  H04W52/325 ,  H04W52/386 ,  H04W72/082 ,  Y02D70/146

摘要： When time at present is included in a high-traffic time period, an interference determining unit (37) determines that there is a possibility that a downlink signal to be received by any wireless terminal has interference with a pilot signal transmitted from a wireless base station. A pilot signal transmission control unit (40) controls the transmission of the pilot signal, which is included in an OFDMA frame or an OFDM frame. When it is determined that there is the possibility of interference, the pilot signal transmission control unit (40) stops the transmission of the pilot signal or reduces power of the pilot signal in a whole or a portion of a user data area.

摘要翻译： 当目前的时间被包括在高通信时间段内时，干扰确定单元（37）确定存在由任何无线终端接收到的下行链路信号与从无线基站发送的导频信号有干扰的可能性 。 导频信号传输控制单元（40）控制包括在OFDMA帧或OFDM帧中的导频信号的传输。 当确定存在干扰的可能性时，导频信号发送控制单元（40）停止导频信号的发送或降低用户数据区域的全部或一部分中的导频信号的功率。

公开(公告)号：US09112755B2

公开(公告)日：2015-08-18

申请号：US14235010

申请日：2012-07-23

申请人： Takeo Miyata

发明人： Takeo Miyata

IPC分类号： H04B7/02 ,  H04L27/26 ,  H04B7/06

CPC分类号： H04L27/2601 ,  H04B7/0689

摘要： A wireless communication device communicates with, using a plurality of antennas, a communication partner device including a plurality of antennas. The wireless communication device includes a communication unit, an interference intensity judgment unit, and a determination unit. The communication unit communicates with the communication partner device using the plurality of antennas and is configured to use a MIMO (multiple input multiple output) scheme when transmitting a signal to the communication partner device. The interference intensity judgment unit judges, based on predetermined criteria, whether or not an intensity of an interference wave included in a received signal at the communication partner device is high. The determination unit prohibits, upon the interference intensity judgment unit judging that the intensity of the interference wave is high, the communication unit from using the MIMO scheme when transmitting a signal.

摘要翻译： 无线通信设备使用多个天线与包括多个天线的通信对方设备进行通信。 无线通信设备包括通信单元，干扰强度判断单元和确定单元。 通信单元使用多个天线与通信对方设备通信，并且被配置为在向通信对方设备发送信号时使用MIMO（多输入多输出）方案。 干扰强度判断单元基于预定标准判断通信对方设备的接收信号中包含的干扰波的强度是否高。 所述确定单元在所述干扰强度判断单元判断出所述干扰波的强度高时禁止所述通信单元在发送信号时使用所述MIMO方式。

公开(公告)号：US20120120864A1

公开(公告)日：2012-05-17

申请号：US13387251

申请日：2010-07-12

申请人： Takeo Miyata

发明人： Takeo Miyata

IPC分类号： H04W72/04

CPC分类号： H04B7/024 ,  H04L5/0023 ,  H04W72/04

摘要： A mode setting unit sets two or more wireless terminals at a collaborative spatial multiplex mode in which the same uplink data burst region is shared for usage, based on the throughput of uplink signals from a plurality of wireless terminals. A burst region notification unit notifies the two or more wireless terminals set at the collaborative spatial multiplex mode of the uplink data burst region shared between the two or more wireless terminals for usage. A switching unit switches, for a first type of wireless terminal transmitting a known signal from a plurality of antennas, the MIMO scheme of a downlink signal from the space-time coding type to the spatial multiplex type when a predetermined condition for communication quality and spatial correlation coefficient satisfy a predetermined condition.

摘要翻译： 模式设置单元基于来自多个无线终端的上行链路信号的吞吐量，以协作空间复用模式设置两个或更多个无线终端，其中相同的上行链路数据突发区域被共享用于使用。 突发区域通知单元通知在两个或更多个无线终端之间共享的上行链路数据突发区域的协作空间复用模式下设置的两个或更多个无线终端进行使用。 当用于通信质量和空间的预定条件时，切换单元为来自多个天线的第一类型的无线终端切换从空时编码类型到空间复用类型的下行链路信号的MIMO方案 相关系数满足预定条件。

公开(公告)号：US08036165B2

公开(公告)日：2011-10-11

申请号：US11630800

申请日：2005-05-16

申请人： Takeo Miyata ,  Katsutoshi Kawai

发明人： Takeo Miyata ,  Katsutoshi Kawai

IPC分类号： H04W4/00

CPC分类号： H04B7/0617 ,  H04L25/0228

摘要： The quality of signals during SDMA is raised.In an uplink, a signal processing unit receives signals respectively from a plurality of terminal apparatuses which have been multiple-accessed by division of time. It derives receiving channel characteristics corresponding to the plurality of terminal apparatuses, respectively, for each time slot. In a downlink, the signal processing unit derives transmitting channel characteristics from the receiving channel characteristics derived and, based on the transmitting channel characteristics derived, it transmits signals respectively to the plurality of terminal apparatuses to which SDMA has been performed. In the downlink, a control unit allocates channels to the plurality of terminal apparatuses, respectively, in a manner that the plurality of terminal apparatuses are multiple-accessed by SDMA; and in the uplink it allocates channels to the plurality of terminal apparatuses, respectively, in a manner that the plurality of terminal apparatuses are multiple-accessed by TDMA.

摘要翻译： SDMA信号质量提高。 在上行链路中，信号处理单元分别从通过分时间多次访问的多个终端装置接收信号。 它分别针对每个时隙导出对应于多个终端装置的接收信道特性。 在下行链路中，信号处理单元从导出的接收信道特性导出发送信道特性，并且基于所传送的发送信道特性，分别向已经执行了SDMA的多个终端装置发送信号。 在下行链路中，控制单元分别以多个终端装置通过SDMA多次访问的方式分配给多个终端装置的信道; 并且在上行链路中，分别以多个终端装置通过TDMA多址访问的方式将信道分配给多个终端装置。

公开(公告)号：US07738438B2

公开(公告)日：2010-06-15

申请号：US10466766

申请日：2002-01-21

申请人： Koichi Mori ,  Seigo Nakao ,  Takeo Miyata

发明人： Koichi Mori ,  Seigo Nakao ,  Takeo Miyata

IPC分类号： H04B1/00

CPC分类号： H04W24/00 ,  H04L1/20 ,  H04W72/04 ,  H04W74/04 ,  H04W88/08

摘要： A radio base system (1000) is multi-path-connected to a plurality of mobile terminal devices to transmit/receive signals. When a communication channel establishment request is sent from one of the plurality of mobile terminal devices, a control unit (80) detects the presence or absence of a mobile terminal device to which a communication channel is already connected for each of a plurality of slots. When channel allocation has to be performed by path multiplexing on the mobile terminal device which has sent the channel establishment request, control unit (80) permits channel establishment in accordance with a result of detection of an error detecting unit (56).

摘要翻译： 无线基站系统（1000）与多个移动终端设备多路径连接以发送/接收信号。 当从多个移动终端设备之一发送通信信道建立请求时，控制单元（80）检测多个时隙中的每个时隙已经连接有通信信道的移动终端设备的存在或不存在。 当已经发送了信道建立请求的移动终端设备上必须通过路径复用来执行信道分配时，控制单元（80）根据错误检测单元（56）的检测结果来允许信道建立。

公开(公告)号：US07542529B2

公开(公告)日：2009-06-02

申请号：US11007292

申请日：2004-12-09

申请人： Chikako Kobayashi ,  Takeo Miyata

发明人： Chikako Kobayashi ,  Takeo Miyata

IPC分类号： H04B1/69

CPC分类号： H03G3/3052

摘要： An AGC processing portion receives a burst signal of each received frame, and measures its received power level to perform gain control of a variable gain amplifier. Unlike a conventional wireless receiving device, a digital signal from an A/D converter is directly supplied to the AGC processing portion, without passing through an FIR filter. Accordingly, the input timing for the AGC processing portion does not include a delay due to the FIR filter, and an amplitude value can be adjusted to be appropriate from the leading part of each frame, suppressing the occurrence of a reception error due to AGC processing.

摘要翻译： AGC处理部分接收每个接收帧的脉冲串信号，并测量其接收的功率电平以执行可变增益放大器的增益控制。 与传统的无线接收装置不同，来自A / D转换器的数字信号直接提供给AGC处理部分，而不通过FIR滤波器。 因此，AGC处理部的输入定时不包括由于FIR滤波器引起的延迟，并且可以从每帧的前导部分调整适当的振幅值，抑制由AGC处理引起的接收误差的发生 。

公开(公告)号：US07454236B2

公开(公告)日：2008-11-18

申请号：US11670743

申请日：2007-02-02

申请人： Yoshuharu Doi ,  Seigo Nakao ,  Takeo Miyata ,  Tadayoshi Ito

发明人： Yoshuharu Doi ,  Seigo Nakao ,  Takeo Miyata ,  Tadayoshi Ito

IPC分类号： H04Q7/20

CPC分类号： H04B7/0617 ,  H04B7/0848 ,  H04B7/086 ,  H04W16/28 ,  H04W72/02 ,  H04W72/0406

摘要： In response to a connection request from a terminal, a base station provides a signal indicating a reception operation adapted to a transmission operation of the base station to the terminal. Based on the indicating signal, the terminal selects and performs the optimum reception operation. The terminal also provides its own reception operation information in advance to the base station. Based on the reception operation information, the base station transmits a reception operation indication to the terminal. These processes are realized with software by a DSP.

公开(公告)号：US20080176522A1

公开(公告)日：2008-07-24

申请号：US11898287

申请日：2007-09-11

申请人： Yoshiharu Doi ,  Seigo Nakao ,  Takeo Miyata ,  Tadayoshi Ito

发明人： Yoshiharu Doi ,  Seigo Nakao ,  Takeo Miyata ,  Tadayoshi Ito

IPC分类号： H04B7/26

CPC分类号： H04B7/0617 ,  H04B7/0848 ,  H04B7/086 ,  H04W16/28 ,  H04W72/02 ,  H04W72/0406

摘要： In response to a connection request from a terminal, a base station provides a signal indicating a reception operation adapted to a transmission operation of the base station to the terminal. Based on the indicating signal, the terminal selects and performs the optimum reception operation. The terminal also provides its own reception operation information in advance to the base station. Based on the reception operation information, the base station transmits a reception operation indication to the terminal. These processes are realized with software by DSP (12, 14) and the like.

公开(公告)号：US20070111758A1

公开(公告)日：2007-05-17

申请号：US11670743

申请日：2007-02-02

申请人： Yoshiharu DOI ,  Seigo NAKAO ,  Takeo Miyata ,  Tadayoshi ITO

发明人： Yoshiharu DOI ,  Seigo NAKAO ,  Takeo Miyata ,  Tadayoshi ITO

IPC分类号： H04B1/38

CPC分类号： H04B7/0617 ,  H04B7/0848 ,  H04B7/086 ,  H04W16/28 ,  H04W72/02 ,  H04W72/0406

摘要： In response to a connection request from a terminal, a base station provides a signal indicating a reception operation adapted to a transmission operation of the base station to the terminal. Based on the indicating signal, the terminal selects and performs the optimum reception operation. The terminal also provides its own reception operation information in advance to the base station. Based on the reception operation information, the base station transmits a reception operation indication to the terminal. These processes are realized with software by DSP (12, 14) and the like.

摘要翻译： 响应于来自终端的连接请求，基站向终端提供指示适合于基站的传输操作的接收操作的信号。 基于指示信号，终端选择并执行最佳接收操作。 终端还预先向基站提供其自己的接收操作信息。 基于接收操作信息，基站向终端发送接收操作指示。 这些过程由DSP（12,14）等的软件实现。