公开(公告)号：US20050197071A1

公开(公告)日：2005-09-08

申请号：US11051642

申请日：2005-01-27

申请人： Makoto Yoshida ,  Eizou Ishizu

发明人： Makoto Yoshida ,  Eizou Ishizu

IPC分类号： H04B7/08 ,  H04B7/26 ,  H04Q7/20

CPC分类号： H04B7/086

摘要： An adaptive control apparatus that adaptively controls directivity of an array antenna is disclosed. The adaptive control apparatus that can be used by a radio apparatus and a receiver includes a setting unit configured to set up parameters such as the distance between the radio apparatus and the receiver that receives a radio frequency signal transmitted by the radio apparatus, the relative moving speed, and the moving direction of the receiver in reference to the radio apparatus. The adaptive control apparatus further includes an evaluating unit configured to evaluate how much received power at the receiver or the radio apparatus changes after a predetermined period, and a weight control unit configured to adjust two or more weighting factors about two or more antenna elements that constitute the array antenna. The directivity of the array antenna is controlled such that the amount of change of the received power is kept within fixed limits independent of the distance between the receiver and the radio apparatus.

摘要翻译： 公开了一种自适应地控制阵列天线的方向性的自适应控制装置。 可以由无线电设备和接收机使用的自适应控制装置包括：设置单元，其被配置为设置诸如无线电设备与接收由无线电设备发送的射频信号的接收机之间的距离的参数，相对移动 参考无线电设备的速度和接收机的移动方向。 自适应控制装置还包括：评估单元，被配置为评估接收机或无线电设备在预定时段之后的接收功率的变化量;以及权重控制单元，被配置为调整关于构成的两个或更多个天线元件的两个或更多个加权因子 阵列天线。 控制阵列天线的方向性，使得接收功率的变化量与接收机和无线电设备之间的距离无关地保持在固定限制内。

公开(公告)号：US07006429B2

公开(公告)日：2006-02-28

申请号：US10072065

申请日：2002-02-08

申请人： Makoto Yoshida ,  Eizou Ishizu

发明人： Makoto Yoshida ,  Eizou Ishizu

IPC分类号： H04L12/28 ,  H04L27/28 ,  H04B7/208 ,  H04K1/10

CPC分类号： H04L27/2615

摘要： An object of the present invention is to provide a method for suppressing peak power at a high encoding rate in a multi-carrier transmission system.The present invention provides a transmitter for transmitting a multi-carrier signal, in which when generating 128 patterns used to suppress the peak power of 8-bit sub-carrier mapping signals from 7-bit information bits in a encoding unit 9, a sub-carrier generation unit 11, for example, divides the signal point of QPSK modulation into orthogonal groups, generates a sub-carrier mapping signal in which a part of sub-carriers is dependent on the signal point of another sub-carrier and a receiver for receiving such a multi-carrier signal.

摘要翻译： 本发明的目的是提供一种用于在多载波传输系统中以高编码率抑制峰值功率的方法。

公开(公告)号：US20100029263A1

公开(公告)日：2010-02-04

申请号：US12511455

申请日：2009-07-29

申请人： Hiroaki SENOO ,  Eiji Fujita ,  Eizou Ishizu ,  Masahiro Tanaka ,  Hiroshi Towata

发明人： Hiroaki SENOO ,  Eiji Fujita ,  Eizou Ishizu ,  Masahiro Tanaka ,  Hiroshi Towata

IPC分类号： H04W24/00 ,  H04W72/00

CPC分类号： H04W48/18 ,  H04W24/10 ,  H04W88/06

摘要： A cognitive radio system includes cognitive radio apparatuses and a management server via a network.The cognitive radio apparatus includes a terminal communication part selecting a communication protocol, a communication quality acquisition part acquiring a communication quality including a current location of the selected protocol, and a communication quality notification part notifying the server of the information.The server includes a server communication part communicating with the apparatus, a communication quality collecting part collecting the information, a communication quality managing part recording and managing the information, and an area communication condition providing part providing the information to the apparatus.

摘要翻译： 认知无线电系统包括认知无线电设备和经由网络的管理服务器。 认知无线电设备包括选择通信协议的终端通信部分，获取包括所选协议的当前位置的通信质量的通信质量获取部分以及通知服务器信息的通信质量通知部分。 服务器包括与设备通信的服务器通信部分，收集信息的通信质量收集部分，记录和管理信息的通信质量管理部分以及向该设备提供信息的区域通信条件提供部分。

公开(公告)号：US07629927B2

公开(公告)日：2009-12-08

申请号：US10926444

申请日：2004-08-25

申请人： Eizou Ishizu ,  Makoto Yoshida

发明人： Eizou Ishizu ,  Makoto Yoshida

IPC分类号： G01S3/16

CPC分类号： H04B7/0617 ,  H04B7/086

摘要： A method for forming a beam in an array antenna to orient a null point of the array antenna to a mobile station which acts as interference, includes the step of: forming a beam in such a manner that, based on a moving speed of the mobile station acting as interference, a moving direction and a distance between the array antenna and the mobile station, a signal power to interference power ratio may be equal, regardless of the distance, between before and after movement when the mobile station acting as interference moves.

摘要翻译： 一种用于在阵列天线中形成波束以将阵列天线的零点定向到作为干扰的移动台的方法包括以下步骤：以如下方式形成波束：基于移动台的移动速度 站作为干扰，阵列天线和移动台之间的移动方向和距离，信号功率与干扰功率之比可以在移动台作为干扰移动时移动之前和之后的距离相等。

公开(公告)号：US07395030B2

公开(公告)日：2008-07-01

申请号：US11051642

申请日：2005-01-27

申请人： Makoto Yoshida ,  Eizou Ishizu

发明人： Makoto Yoshida ,  Eizou Ishizu

IPC分类号： H04B1/00

CPC分类号： H04B7/086

摘要： An adaptive control apparatus that adaptively controls directivity of an array antenna is disclosed. The adaptive control apparatus that can be used by a radio apparatus and a receiver includes a setting unit configured to set up parameters such as the distance between the radio apparatus and the receiver that receives a radio frequency signal transmitted by the radio apparatus, the relative moving speed, and the moving direction of the receiver in reference to the radio apparatus. The adaptive control apparatus further includes an evaluating unit configured to evaluate how much received power at the receiver or the radio apparatus changes after a predetermined period, and a weight control unit configured to adjust two or more weighting factors about two or more antenna elements that constitute the array antenna. The directivity of the array antenna is controlled such that the amount of change of the received power is kept within fixed limits independent of the distance between the receiver and the radio apparatus.

摘要翻译： 公开了一种自适应地控制阵列天线的方向性的自适应控制装置。 可以由无线电设备和接收机使用的自适应控制装置包括：设置单元，其被配置为设置诸如无线电设备与接收由无线电设备发送的射频信号的接收机之间的距离的参数，相对移动 参考无线电设备的速度和接收机的移动方向。 自适应控制装置还包括：评估单元，被配置为评估接收机或无线电设备在预定时段之后的接收功率的变化量;以及权重控制单元，被配置为调整关于构成的两个或更多个天线元件的两个或更多个加权因子 阵列天线。 控制阵列天线的方向性，使得接收功率的变化量与接收机和无线电设备之间的距离无关地保持在固定限制内。

公开(公告)号：US20050190105A1

公开(公告)日：2005-09-01

申请号：US10926444

申请日：2004-08-25

申请人： Eizou Ishizu ,  Makoto Yoshida

发明人： Eizou Ishizu ,  Makoto Yoshida

IPC分类号： H01Q3/26 ,  H04B7/06 ,  H04B7/08 ,  H04B7/10 ,  H04B7/26 ,  H04Q7/34 ,  G01S3/16

CPC分类号： H04B7/0617 ,  H04B7/086

摘要： A method for forming a beam in an array antenna to orient a null point of the array antenna to a mobile station which acts as interference, includes the step of: forming a beam in such a manner that, based on a moving speed of the mobile station acting as interference, a moving direction and a distance between the array antenna and the mobile station, a signal power to interference power ratio may be equal, regardless of the distance, between before and after movement when the mobile station acting as interference moves.

摘要翻译： 一种用于在阵列天线中形成波束以将阵列天线的零点定向到作为干扰的移动台的方法包括以下步骤：以如下方式形成波束：基于移动台的移动速度 站作为干扰，阵列天线和移动台之间的移动方向和距离，信号功率与干扰功率之比可以在移动台作为干扰移动时移动之前和之后的距离相等。

公开(公告)号：US07990923B2

公开(公告)日：2011-08-02

申请号：US11979158

申请日：2007-10-31

申请人： Eizou Ishizu ,  Tamio Shiba ,  Manabu Nagano

发明人： Eizou Ishizu ,  Tamio Shiba ,  Manabu Nagano

IPC分类号： H04W36/00

CPC分类号： H04W36/30 ,  H04W36/36

摘要： A method for selecting a connection destination for wireless communication from a plurality of base stations in a wireless terminal that is in service areas of the plurality of base stations, which includes a first step (#11) of receiving dispatch information from each of the plurality of base stations, a second step (#12) of obtaining information about each reception power when the dispatch information is received, a third step (#13) of obtaining information about an antenna that is used by each of the base stations for wireless communication after connection from each of the received dispatch information, and a fourth step (#14) of selecting a base station having a highest quality of a communication channel in the wireless communication as the connection destination based on the information about the reception power and the information about the antenna of each of the base stations.

摘要翻译： 一种用于从位于多个基站的服务区域的无线终端中的多个基站中选择用于无线通信的连接目的地的方法，其包括从多个基站中的每一个接收分派信息的第一步骤（＃11） 基站的第二步骤（＃12），获取关于接收到所述调度信息时的每个接收功率的信息的第二步骤（＃13），获得关于每个所述基站用于无线通信的天线的信息的第三步骤（＃13） 在从所接收到的调度信息中的每一个连接之后，以及基于关于接收功率和信息的信息，选择具有无线通信中的通信信道质量最高的基站作为连接目的地的第四步骤（＃14） 关于每个基站的天线。

公开(公告)号：US20070297385A1

公开(公告)日：2007-12-27

申请号：US11896397

申请日：2007-08-31

申请人： Eizou Ishizu ,  Eiji Fujita

发明人： Eizou Ishizu ,  Eiji Fujita

IPC分类号： H04B7/216

CPC分类号： H04L1/20 ,  H04L5/0007 ,  H04L5/001 ,  H04L5/006 ,  H04L5/0091 ,  H04L5/06 ,  H04W72/048 ,  H04W72/085

摘要： The present invention is a multi-carrier communication method for carrying out communication between a mobile station and a base station with the use of a plurality of carrier frequencies within the same area, wherein a reception quality correspondent value of each of the plurality of carrier frequencies in the mobile station is detected, a carrier frequency to be used for communication is determined based on the reception quality correspondent values, so that communication is carried out with the carrier frequency having high reception quality and reception quality can be improved.

摘要翻译： 本发明是一种多载波通信方法，用于通过使用同一区域内的多个载波频率来进行移动站与基站之间的通信，其中，所述多个载波频率中的每一个的接收质量对应值 在检测到移动站时，基于接收质量对应值确定要用于通信的载波频率，从而可以提高具有高接收质量和接收质量的载波频率的通信。

公开(公告)号：US07313189B2

公开(公告)日：2007-12-25

申请号：US10784437

申请日：2004-02-23

申请人： Makoto Yoshida ,  Eizou Ishizu

发明人： Makoto Yoshida ,  Eizou Ishizu

IPC分类号： H04L27/28 ,  H04J11/00

CPC分类号： H04L27/2647 ,  H04L2025/03414

摘要： A receiver is disclosed that demodulates an Orthogonal Frequency Division Multiplexing (OFDM) symbol transmitted by an OFDM method. The receiver includes a delay profile generation unit that generates a delay profile regarding a preceding wave and a delayed wave included in a received signal, a demodulation unit that demodulates the received signal so as to output a demodulated signal per sub-carrier, a hard-decision unit that makes a hard decision per sub-carrier on a signal point based on the demodulated signal so as to output a hard-decision signal, a replica generation unit that uses the hard-decision signal to generate a replica signal per sub-carrier, and an inter-carrier interference suppression unit that adds a difference between the hard-decision signal and the replica signal to the demodulated signal so as to suppress an inter-carrier interference.

摘要翻译： 公开了一种解调通过OFDM方法发送的正交频分复用（OFDM）符号的接收机。 所述接收机包括：延迟分布生成单元，生成与前述的波形有关的延迟分布和包含在接收信号中的延迟波;解调单元，对接收到的信号进行解调，以输出每个子载波的解调信号; 决定单元，其基于所述解调信号在信号点上对每个子载波进行硬判决，以输出硬判决信号;复制生成单元，其使用所述硬判决信号来产生每副载波的复制信号 以及载波间干扰抑制单元，其将硬判决信号和复制信号之间的差加到解调信号上，以抑制载波间干扰。

公开(公告)号：US06665831B1

公开(公告)日：2003-12-16

申请号：US09478603

申请日：2000-01-06

申请人： Makoto Yoshida ,  Eizou Ishizu

发明人： Makoto Yoshida ,  Eizou Ishizu

IPC分类号： H03M1300

CPC分类号： H04L1/0057 ,  H04L1/0042 ,  H04L1/007 ,  H04L27/2602 ,  H04L27/2617

摘要： A method of providing unequal error protection in a multi-carrier transmission, includes the steps of coding data for a multi-carrier-symbol duration by a coding process of a given minimum code distance, the given minimum code distance being a minimum of a distance between two codes that is measured in multidimensional code space with N sub-carriers; and changing the minimum code distance for each multi-carrier-symbol duration by changing the coding process.

摘要翻译： 一种在多载波传输中提供不相等错误保护的方法包括以下步骤：通过给定的最小码距离的编码处理为多载波符号持续时间编码数据，给定的最小码距离为距离的最小值 在具有N个子载波的多维码空间中测量的两个码之间; 并且通过改变编码处理来改变每个多载波符号持续时间的最小码距离。