公开(公告)号：US08301352B2

公开(公告)日：2012-10-30

申请号：US13227677

申请日：2011-09-08

申请人： Akira Ito ,  Takashi Dateki ,  Masahiko Shimizu

发明人： Akira Ito ,  Takashi Dateki ,  Masahiko Shimizu

IPC分类号： G06F19/00

CPC分类号： H04W52/262 ,  H04W52/146 ,  H04W52/225 ,  H04W52/246

摘要： A cubic metric calculator performs a calculation of a time average of power of the amplitude of a transmission signal when a cubic metric value is calculated as a product-sum operation between a transmission power-dependent term including an amplitude value depending on the transmission power of a transmission signal and a time average term including only a modulation parameter not depending on the transmission power of the transmission signal. When the transmission signal is transmitted, the operator inputs the amplitude value to calculate the transmission power-dependent term, reads the value of the time average term from coefficient memory, and performs the product-sum operation using an operation result of the transmission power-dependent term and the read value of the time average term, thereby calculating a time average of the power of the amplitude of the transmission signal.

摘要翻译： 当三次度量值被计算为包括根据发射功率的发射功率的幅度值的发射功率相关项之间的乘积和运算时，三次量度计算器执行传输信号的幅度的功率的时间平均值的计算 传输信号和仅包括不依赖于发送信号的发送功率的调制参数的时间平均项。 当发送发送信号时，操作员输入振幅值来计算发送功率相关项，从系数存储器读取时间平均项的值，并使用发送功率相关项的运算结果进行乘积和运算， 依赖项和时间平均项的读取值，从而计算发送信号的幅度的功率的时间平均。

公开(公告)号：US07305022B2

公开(公告)日：2007-12-04

申请号：US10789226

申请日：2004-02-26

申请人： Daisuke Ogawa ,  Hideto Furukawa ,  Takashi Dateki ,  Masahiko Shimizu ,  Tsuyoshi Hasegawa

发明人： Daisuke Ogawa ,  Hideto Furukawa ,  Takashi Dateki ,  Masahiko Shimizu ,  Tsuyoshi Hasegawa

IPC分类号： H04B1/00

CPC分类号： H04B1/712 ,  H04B1/7117

摘要： MIXR is implemented with a realistic amount of hardware even when the number of detected paths is large. From among path timings detected by a path searcher and MICTs generated based on the detected path timings, as many timings as there are fingers are selected by a timing selector and the selected timings are assigned to the fingers. When selecting the timings, the value of SNIR expected to be achieved by RAKE combining in a RAKE combiner, for example, is predicted by calculation from a received signal, and the path timing and MICT that maximize the SNIR are selected.

摘要翻译： 即使检测到的路径数量大，MIXR也可以实现硬实际的硬件。 由路径搜索器检测到的路径定时和基于检测到的路径定时生成的MICT之间，定时选择器选择与手指一样多的定时，并将所选择的定时分配给手指。 当选择定时时，例如通过从接收信号的计算来预测通过RAKE组合器中的RAKE组合预期的SNIR的值被预测，并且选择使SNIR最大化的路径定时和MICT。

公开(公告)号：US20050105593A1

公开(公告)日：2005-05-19

申请号：US11023267

申请日：2004-12-27

申请人： Takashi Dateki ,  Masahiko Shimizu

发明人： Takashi Dateki ,  Masahiko Shimizu

IPC分类号： H04B7/005 ,  H04J13/00 ,  H04L5/02 ,  H04B1/69

CPC分类号： H04W52/42 ,  H04L5/026

摘要： In power control in an OFDM-CDMA system for creating a number of subcarrier components by multiplying a plurality of symbols by channelization codes of a length that conforms to a spreading factor, and transmitting each of the subcarrier components by a corresponding subcarrier, a subcarrier band is divided into a plural subcarrier blocks, the number of the subcarriers in each block is a whole-number multiple of the spreading factor, an identical transmission power is assigned to each subcarrier in each subcarrier block obtained by such division, and transmission power is controlled from one subcarrier block to another.

摘要翻译： 在OFDM-CDMA系统中的功率控制中，用于通过使符合扩频因子的长度的信道化码乘以多个符号来产生多个子载波分量，并且通过相应的子载波来发送每个副载波分量，子载波频带 被划分为多个子载波块，每个块中的子载波数是扩频因子的整数倍，对通过这种划分获得的每个子载波块中的每个子载波分配相同的发射功率，并且控制发射功率 从一个子载波块到另一个。

公开(公告)号：US20050058183A1

公开(公告)日：2005-03-17

申请号：US10789226

申请日：2004-02-26

申请人： Daisuke Ogawa ,  Hideto Furukawa ,  Takashi Dateki ,  Masahiko Shimizu ,  Tsuyoshi Hasegawa

发明人： Daisuke Ogawa ,  Hideto Furukawa ,  Takashi Dateki ,  Masahiko Shimizu ,  Tsuyoshi Hasegawa

IPC分类号： H04B1/707 ,  H04B1/7115 ,  H04B7/08 ,  H04L1/00

CPC分类号： H04B1/712 ,  H04B1/7117

摘要： MIXR is implemented with a realistic amount of hardware even when the number of detected paths is large. From among path timings detected by a path searcher and MICTs generated based on the detected path timings, as many timings as there are fingers are selected by a timing selector and the selected timings are assigned to the fingers. When selecting the timings, the value of SNIR expected to be achieved by RAKE combining in a RAKE combiner, for example, is predicted by calculation from a received signal, and the path timing and MICT that maximize the SNIR are selected.

摘要翻译： 即使检测到的路径数量大，MIXR也可以实现硬实际的硬件。 由路径搜索器检测到的路径定时和基于检测到的路径定时生成的MICT之间，定时选择器选择与手指一样多的定时，并将所选择的定时分配给手指。 当选择定时时，例如通过从接收信号的计算来预测通过RAKE组合器中的RAKE组合预期的SNIR的值被预测，并且选择使SNIR最大化的路径定时和MICT。

公开(公告)号：US06650692B2

公开(公告)日：2003-11-18

申请号：US09943437

申请日：2001-08-29

申请人： Takeshi Inoue ,  Masahiko Shimizu ,  Takashi Dateki ,  Koji Matsuyama

发明人： Takeshi Inoue ,  Masahiko Shimizu ,  Takashi Dateki ,  Koji Matsuyama

IPC分类号： H04K100

CPC分类号： H04B1/7117 ,  H04B1/7093 ,  H04B1/712

摘要： A path search unit (1) detects the correlation between a received signal and a desired signal; (2) based on the correlation value, selects a plurality of paths over which the desired signal arrives; (3) if the difference between the detection time of the desired signal arriving via a path selected this time and the previous-time detection signal is within an allowable range, judges that the path selected this time is identical to a path previously allocated to prescribed finger units, and (4) if a path is identical, causes despreading and delay adjustment processing of the desired signal arriving over the selected path to be executed by the same finger unit as previously. A timing control unit calculates the difference between the detection time this time, over the identical path, and a reference time, and, based on the total of the time differences over the identical path, controls the timing lead/lag.

公开(公告)号：US08285235B2

公开(公告)日：2012-10-09

申请号：US12817781

申请日：2010-06-17

申请人： Hiroyuki Egawa ,  Masahiko Shimizu

发明人： Hiroyuki Egawa ,  Masahiko Shimizu

IPC分类号： H04B1/18

CPC分类号： H04B1/18 ,  H04B1/0458

摘要： A wireless communication apparatus includes: an antenna; a communication unit for receiving a radio signal via the antenna; a tuning unit for tuning an impedance of the antenna; an impedance controller for controlling the tuning unit to match the impedance of the antenna with an impedance of the communication unit; and a halting unit for halting controlling the impedance of the antenna in accordance with an intensity of the received radio signal.

摘要翻译： 一种无线通信装置，包括：天线; 通信单元，用于经由天线接收无线电信号; 调谐单元，用于调谐天线的阻抗; 阻抗控制器，用于控制所述调谐单元将所述天线的阻抗与所述通信单元的阻抗相匹配; 以及停止单元，用于根据所接收的无线电信号的强度停止控制天线的阻抗。

公开(公告)号：US08238273B2

公开(公告)日：2012-08-07

申请号：US11826608

申请日：2007-07-17

申请人： Masahiko Shimizu ,  Akira Ito

发明人： Masahiko Shimizu ,  Akira Ito

IPC分类号： H04B7/00

CPC分类号： H04L1/0013 ,  H04B7/0691 ,  H04L1/0026 ,  H04L1/0067 ,  H04L1/06 ,  H04L1/08

摘要： The present method groups a transmission data stream, taking a combination of data bits to be transmitted from a part or all of the plurality of transmission antennas at the same time as one group; and performs transmission processing, including at least either of bit repetition processing or retransmission processing by the unit of the group (bit combination). As a result, in MIMO communication, etc., it is possible to suppress deterioration of reception characteristic due to vanishing of correlation among bits transmitted at the same time.

摘要翻译： 本方法对传输数据流进行分组，同时将一个或多个多个发送天线的一部分或全部发送的数据比特组合成一组; 并进行发送处理，包括以组为单位的比特重复处理或重发处理中的至少一个（比特组合）。 结果，在MIMO通信等中，可以抑制由于同时发送的比特之间的相关性的消失而引起的接收特性的恶化。

公开(公告)号：US08189711B2

公开(公告)日：2012-05-29

申请号：US12213850

申请日：2008-06-25

申请人： Masahiko Shimizu

发明人： Masahiko Shimizu

IPC分类号： H04L27/00

CPC分类号： H04W52/267 ,  H04L1/004 ,  H04L1/203

摘要： The present invention relates to a transmission controlling method in a wireless communications system and a receiver for use in the same system. The invention aims at realizing power control (or transmit rate control) more effective than previous techniques by means of utilizing a certain relationship between an error rate and an evaluation amount relating to the estimation amount. Thus, a certain relationship is defined between the evaluation amount relating to a reception condition and an error rate on the receiver, and on the basis of this certain relationship, transmit power of the transmitter is controlled.

摘要翻译： 本发明涉及无线通信系统中的传输控制方法和用于同一系统的接收机。 本发明旨在通过利用误差率与与估计量相关的评估量之间的一定关系来实现比先前技术更有效的功率控制（或发送速率控制）。 因此，在与接收条件相关的评估量与接收机的错误率之间定义一定的关系，并且基于该确定关系，控制发送器的发送功率。

公开(公告)号：US07953428B2

公开(公告)日：2011-05-31

申请号：US11067288

申请日：2005-02-28

申请人： Masahiko Shimizu ,  Akira Ito

发明人： Masahiko Shimizu ,  Akira Ito

IPC分类号： H04B15/00

CPC分类号： H04L1/1825 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/0068 ,  H04L1/1671 ,  H04L1/1812 ,  H04L1/1867 ,  H04L1/1893

摘要： Excessive quality in the receiving apparatus is controlled to obtain the combined gain by distinctively controlling the re-transmission for the first transmission. A transmitting apparatus for transmitting the data to a receiving apparatus to execute regeneration of data using, for example, the received data and the re-transmitted data, comprises a control unit operable to receive an indication that an error has been detected in received data transmitted in a first transmission, to re-transmit the data in a second transmission, and to control resources for re-transmission of the data to use fewer resources for the second transmission than for the first transmission.

摘要翻译： 控制接收装置中的质量过高，通过明显地控制第一传输的重传来获得组合的增益。 一种发送装置，用于使用例如所接收的数据和重新发送的数据将数据发送到接收装置以执行数据的再生，包括：控制单元，用于接收在发送的接收数据中检测到错误的指示 在第一传输中，在第二传输中重新发送数据，并且控制资源以重新发送数据，以使用比第一传输更少的用于第二传输的资源。

公开(公告)号：US20080020711A1

公开(公告)日：2008-01-24

申请号：US11826609

申请日：2007-07-17

申请人： Akira Ito ,  Masahiko Shimizu

发明人： Akira Ito ,  Masahiko Shimizu

IPC分类号： H04B17/00

CPC分类号： H04L1/0026 ,  H04L1/20

摘要： A wireless system in which a pilot signal is transmitted in such a manner as to restrain error between the SIR of a data channel and that of the pilot signal, thereby improving wireless transmission quality. A specific pilot signal generator generates a specific pilot signal whose power and spreading ratio are identical with those of the data channel. A data channel generator receives propagation environment information and generates the data channel with a transmission format corresponding to the received propagation environment information. A wireless transmitter transmits the specific pilot signal and the data channel. On detecting the specific pilot signal, a propagation environment information notifier measures the SIR of the specific pilot signal, then generates propagation environment information corresponding to the measured SIR, and notifies the wireless transmitting unit of the generated information. A data channel receiver receives the data channel and processes the received data channel.

摘要翻译： 其中以抑制数据信道的SIR与导频信号的SIR之间的误差的方式发送导频信号的无线系统，从而提高无线传输质量。 特定的导频信号发生器产生其功率和扩展率与数据信道的功率和扩频比相同的特定导频信号。 数据信道生成器接收传播环境信息，并以与所接收的传播环境信息对应的传输格式生成数据信道。 无线发射机发送特定的导频信号和数据信道。 在检测到特定导频信号时，传播环境信息通知器测量特定导频信号的SIR，然后产生与所测量的SIR相对应的传播环境信息，并向无线发射单元通知所生成的信息。 数据信道接收机接收数据信道并处理接收到的数据信道。