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1. 发明专利

JP2015050770A デジタルプリディストーション装置及び方法审中-公开
标题翻译：数字预测装置及方法
公开(公告)号：JP2015050770A
公开(公告)日：2015-03-16
申请号：JP2014165762
申请日：2014-08-18
申请人：富士通株式会社 , Fujitsu Ltd
发明人： SHI ZHAN , LI HUI , ZHOU JIANMIN , IWAMATSU TAKANORI
IPC分类号： H03F1/32 , H04B1/04 , H04L27/01
CPC分类号： H03F1/3247 , H03F3/19 , H03F3/245 , H03F2200/451 , H03F2201/3224
摘要：【課題】デジタルプリディストーション装置及び方法を提供する。【解決手段】かかる装置は、信号の非線形特性を補償するための非線形性補償ユニット;前記信号のメモリ効果特性を補償するためのメモリ効果補償ユニット;フィードバック信号を処理し、前記信号の定値特性情報を取得するための定値特性取得ユニット;取得した前記定値特性情報及び所定値に基づいて、プリディストーションのコスト関数を計算するためのコスト関数生成ユニットであって、前記所定値は、前記信号の変調方式に従って予め取得されている、コスト関数生成ユニット;及び、前記コスト関数に基づいて、前記非線形性補償ユニットの係数及び前記メモリ効果補償ユニットの係数を更新するための係数更新ユニットを含む。【選択図】図10
摘要翻译：要解决的问题：提供数字预失真装置和数字预失真方法。解决方案：数字预失真装置包括：用于补偿信号的非线性特性的非线性补偿单元; 用于补偿信号的存储器效应特性的存储效应补偿单元; 恒定值特性获取单元，用于处理反馈信号并获取所述信号的恒定值特性信息; 成本函数产生单元，用于根据获取的常数值特性信息和预定值根据信号的调制方法预先获取预定值，计算预失真的成本函数; 以及系数更新单元，用于基于成本函数更新非线性特性补偿单元的系数和存储效应补偿单元的系数。

2. 发明专利

JP2009212590A Radio communication apparatus 审中-公开
标题翻译：无线电通信设备
公开(公告)号：JP2009212590A
公开(公告)日：2009-09-17
申请号：JP2008050957
申请日：2008-02-29
申请人： Fujitsu Ltd , 富士通株式会社
发明人： IWAMATSU TAKANORI
IPC分类号： H04J11/00 , H04B1/10 , H04J1/00 , H04J99/00
CPC分类号： H04L5/0023 , H04B1/7103 , H04L5/0007 , H04L5/0048 , H04L5/006 , H04L5/0064 , H04L25/0204 , H04L25/0226 , H04L25/0228 , H04L25/03019 , H04L2025/03414 , H04L2025/03426 , H04L2025/03796
摘要： PROBLEM TO BE SOLVED: To reduce interference caused by radio waves transmitted from other systems. SOLUTION: Radio terminal equipment having a plurality of antennas comprises: a means for determining a phase and/or amplitude so as to remove prescribed signals on the basis of the prescribed signals included in signals received by the plurality of antennas; a means for regulating the signals received by a part of the plurality of antennas to an opposite phase on the basis of the determined phase and/or amplitude; a means for synthesizing, in the opposite phase, the signals received by other part of the antennas and the regulated signals; and a means for removing interference waves from the signals received by the plurality of antennas on the basis of the signals synthesized in the opposite phase and the signals received by the plurality of the antennas. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：减少由其他系统传输的无线电波引起的干扰。解决方案：具有多个天线的无线电终端设备包括：用于基于由多个天线接收的信号中包括的规定信号来确定相位和/或幅度以便去除规定信号的装置; 基于所确定的相位和/或幅度，将由所述多个天线的一部分接收的信号调整到相反相位的装置; 在相反阶段合成由天线的其他部分和调节信号接收的信号的装置; 以及用于根据由相反相位合成的信号和由多个天线接收的信号，从多个天线接收的信号中去除干扰波的装置。版权所有（C）2009，JPO＆INPIT

3. 发明专利

JP2006217401A Communication device 有权
标题翻译：通信设备
公开(公告)号：JP2006217401A
公开(公告)日：2006-08-17
申请号：JP2005029493
申请日：2005-02-04
申请人： Fujitsu Ltd , 富士通株式会社
发明人： OISHI SHOJI , IWAMATSU TAKANORI
IPC分类号： H04L27/38 , H04L27/22
CPC分类号： H04L27/38 , H04L7/0029
摘要： PROBLEM TO BE SOLVED: To provide a communication device capable of controlling the band property of an interpolator appropriately in accordance with a received signal. SOLUTION: The communication device is provided with a prestage processor for performing orthogonal demodulation of a modulation signal, and outputting a baseband signal of digital format, an interpolation processor for performing interpolation processing for adjusting a phase error with respect to a sampling timing on the basis of the baseband signal outputted from the prestage processor, generating and outputting a baseband signal synchronized with the sampling timing, and a poststage processor for performing wave shaping of the baseband signal outputted from the interpolation processor and outputting it. A tap coefficient to be supplied to an FIR filter possessed by the interpolation processor is changed in accordance with an input modulation signal. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：解决的问题：提供能够根据接收信号适当地控制内插器的频带特性的通信装置。解决方案：通信设备设置有用于执行调制信号的正交解调并输出数字格式的基带信号的预处理器，用于执行用于相对于采样定时调整相位误差的内插处理的内插处理器基于从前级处理器输出的基带信号，生成并输出与采样定时同步的基带信号，以及后级处理器，用于对从内插处理器输出的基带信号进行波形整形并输出。根据输入的调制信号来改变要提供给内插处理器所拥有的FIR滤波器的抽头系数。版权所有（C）2006，JPO＆NCIPI

4. 发明专利

JP2012120155A Apparatus for and method of controlling predistorter, and method of detecting power control state 有权
标题翻译：控制预测器的装置和方法，以及检测功率控制状态的方法
公开(公告)号：JP2012120155A
公开(公告)日：2012-06-21
申请号：JP2011209606
申请日：2011-09-26
申请人： Fujitsu Ltd , 富士通株式会社
发明人： LI HUI , IWAMATSU TAKANORI , ZHOU JIANMIN
IPC分类号： H03F1/32 , H04B1/04
CPC分类号： H03F1/3247 , H03F1/3258 , H03F2201/3212 , H04L27/368
摘要： PROBLEM TO BE SOLVED: To provide an apparatus for and a method of controlling a predistorter, and a method of detecting a power control state.SOLUTION: The method of controlling a predistorter, which is for predistorting a signal input into a power amplifier, includes the steps of: storing predistortion coefficients used by the predistorter; acquiring indices each indicative of an output power of the power amplifier; detecting, based on the indices, whether the power amplifier is in a state of undergoing power control; and supplying the stored predistortion coefficients to the predistorter when it is detected that the power amplifier is in the state of undergoing power control, or supplying, when it is detected that the power amplifier is not in the state of undergoing power control, to the predistorter predistortion coefficients calculated by a unit that performs predistortion coefficient adaptive updating operation.
摘要翻译：要解决的问题：提供一种用于控制预失真器的装置和方法，以及检测功率控制状态的方法。控制预失真器的方法，用于将输入到功率放大器的信号预失真，包括以下步骤：存储预失真器使用的预失真系数; 获取每个指示功率放大器的输出功率的指标; 根据指标检测功率放大器是否处于正在进行功率控制的状态; 并且当检测到功率放大器处于进行功率控制的状态时，将所存储的预失真系数提供给预失真器，或者当检测到功率放大器未处于进行功率控制的状态时，将其提供给预失真器由执行预失真系数自适应更新操作的单元计算的预失真系数。版权所有（C）2012，JPO＆INPIT

5. 发明专利

JP2011103573A Wireless communication system, terminal device and wireless communication method in the wireless communication system 审中-公开
标题翻译：无线通信系统，无线通信系统中的终端设备和无线通信方法
公开(公告)号：JP2011103573A
公开(公告)日：2011-05-26
申请号：JP2009257903
申请日：2009-11-11
申请人： Fujitsu Ltd , 富士通株式会社
发明人： KOYAKATA HIDEKI , IWAMATSU TAKANORI
IPC分类号： H04W74/08 , H04J1/00 , H04J11/00 , H04W72/04 , H04W84/18
CPC分类号： H04W72/02 , H04W72/0406
摘要： PROBLEM TO BE SOLVED: To provide a wireless communication system, along with a terminal device and a wireless communication method, which improve throughput.
SOLUTION: The wireless communication system includes a first group of terminal devices which performs receiving using a first wireless resource and transmission using a second wireless resource, and a second group of terminal devices which performs receiving using the second wireless resource and transmission using the first wireless resource, and directly performs wireless communications between terminals that belong to the first group of terminal devices and terminals that belong to the second group of terminal devices. The wireless communication system includes a first terminal which belongs to the first group of terminal devices and transmits an allocation request for a transmission band within the second wireless resource using the second wireless resource, and a second terminal which belongs to the second group of terminal devices, receives the allocation request transmitted from the first terminal and transmits information that indicates allocation to the first terminal in the transmission band using the first wireless resource.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供无线通信系统以及提高吞吐量的终端设备和无线通信方法。解决方案：无线通信系统包括使用第一无线资源进行接收的第一组终端设备和使用第二无线资源进行传输的第二组终端设备，以及使用第二无线资源进行接收的第二组终端设备和使用第一无线资源，并且直接执行属于第一组终端设备的终端和属于第二组终端设备的终端之间的无线通信。无线通信系统包括属于第一组终端装置的第一终端，并使用第二无线资源发送第二无线资源内的传输频带的分配请求，属于第二组终端装置的第二终端接收从第一终端发送的分配请求，并使用第一无线资源向发送频带中的第一终端发送指示分配的信息。版权所有（C）2011，JPO＆INPIT

6. 发明专利

JP2007195075A Demodulation circuit and demodulation method 审中-公开
标题翻译：解调电路和解调方法
公开(公告)号：JP2007195075A
公开(公告)日：2007-08-02
申请号：JP2006013212
申请日：2006-01-20
申请人： Fujitsu Ltd , 富士通株式会社
发明人： KITSUTA TATSUAKI , IWAMATSU TAKANORI
IPC分类号： H04L27/38
CPC分类号： H04L27/3872 , H04L7/0029 , H04L25/0305 , H04L27/0002
摘要： PROBLEM TO BE SOLVED: To provide a demodulation circuit the circuit scale of which can be reduced in size. SOLUTION: The demodulation circuit includes a reception section for receiving a modulated signal, and an automatic equalizing section for eliminating an interference wave from a received modulated signal. Then a tap used for executing amplitude control of data of the present time in the automatic equalizing section is arranged at the input side of the automatic equalizing section, and a tap coefficient, given to the tap of the amplitude control in the automatic equalizing section, is outputted from the automatic equalizing section. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供其电路规模可以减小的解调电路。解决方案：解调电路包括用于接收调制信号的接收部分和用于从接收到的调制信号中消除干扰波的自动均衡部分。然后，在自动均衡部的输入侧配置用于在自动均衡部中执行当前时间的数据的幅度控制的抽头，并且给予自动均衡部中的振幅控制的抽头的抽头系数，从自动均衡部输出。版权所有（C）2007，JPO＆INPIT

7. 发明专利

JP2004304368A Device for estimating signal interference ratio and device for estimating interference signal 有权
公开(公告)号：JP2004304368A
公开(公告)日：2004-10-28
申请号：JP2003092867
申请日：2003-03-28
申请人： Fujitsu Ltd , 富士通株式会社
发明人： IWAMATSU TAKANORI , AMAZAWA TAIJI
IPC分类号： H04B17/00 , H04B7/26
摘要： PROBLEM TO BE SOLVED: To provide a signal interference ratio estimating device and a signal interference estimating device capable of calculating the signal interference ratio between a desired signal component included in a communication signal and an interference signal component with high accuracy. SOLUTION: This signal interference ratio estimating device has a first operating means for outputting the mean square of the communication signal as a first output signal P, a second operating means for averaging the communication signal over n samples and outputting the mean square of the averaged communication signal as a second output signal Q, a desired signal calculating means for calculating the desired signal component A by multiplying the difference between the result obtained by multiplying the second output signal by (n), being the number of averaging number and the first output signal, by a prescribed number C A , an interference signal calculating means for calculating the interference signal component B by multiplying the difference between the first output signal and the second output signal by a prescribed number C B , and a signal to interference ratio calculating means for calculating a value that is in proportion to the signal to interference ratio SIR by calculating the ratio of the desired signal component to the interference signal component. COPYRIGHT: (C)2005,JPO&NCIPI

8. 发明专利

JP2004215300A Correlation energy detector 有权
公开(公告)号：JP2004215300A
公开(公告)日：2004-07-29
申请号：JP2004057652
申请日：2004-03-02
申请人： Fujitsu Ltd , 富士通株式会社
发明人： IWAMATSU TAKANORI
IPC分类号： H04B1/707 , H04B1/712
摘要： PROBLEM TO BE SOLVED: To obtain proper correlation energy detection and finger (RAKE) synthesis or the like in a simple configuration. SOLUTION: The correlation energy detector is provided with a specification part for finding correlative values (I ij , Q ij ) between a first signal sequence (I i , Q i ) and a predetermined second signal sequence (H J ) expressed with I-Q orthogonal components, further calculating a sum-of-squares root value ä√(I ij 2 +Q ij 2 )} or an absolute value sum (¾I ij ¾+¾Q ij ¾) of the found correlative values (I ij , Q ij ) and specifying the second signal sequence based upon the calculated value. The correlation energy detector is equipped with a comparator means for comparing the value of the sum-of-squares root value of the correlative values or the absolute value sum of the correlative values with a threshold TH, and a selection means not to use the value of the sum-of-squares root value or the absolute value sum lower than the threshold in comparison for specification in the specification part. COPYRIGHT: (C)2004,JPO&NCIPI

9. 发明专利

JP2014039260A Method and device for controlling update of digital predistortion coefficients 有权
标题翻译：用于控制数字预测系统更新的方法和装置
公开(公告)号：JP2014039260A
公开(公告)日：2014-02-27
申请号：JP2013168831
申请日：2013-08-15
申请人： Fujitsu Ltd , 富士通株式会社
发明人： CHENU PEI , ZHOU JIANMIN , IWAMATSU TAKANORI
IPC分类号： H03F1/32 , H03F3/24 , H03G3/20
CPC分类号： H04L27/367 , H03F1/3247 , H03F1/3258 , H03F3/19 , H03F3/245 , H03F2200/465 , H03F2201/3233 , H04L27/368
摘要： PROBLEM TO BE SOLVED: To provide a method and a device for controlling update of digital predistortion coefficients (DPD).SOLUTION: The device is used in a digital power control system and includes an update control unit for determining a set of DPD coefficients trained sufficiently out of a plurality of DPD coefficients, and a DPD coefficient generation unit performing self-adapting update for the set of DPD coefficients trained sufficiently, based on the determination results from the update control unit.
摘要翻译：要解决的问题：提供一种用于控制数字预失真系数（DPD）更新的方法和装置。解决方案：该装置用于数字功率控制系统，并且包括更新控制单元，用于确定充分训练的一组DPD系数并且DPD系数生成单元基于来自更新控制单元的确定结果对所充分训练的DPD系数组进行自适应更新。

10. 发明专利

JP2012099904A Receiver 有权
标题翻译：接收器
公开(公告)号：JP2012099904A
公开(公告)日：2012-05-24
申请号：JP2010243689
申请日：2010-10-29
申请人： Fujitsu Ltd , 富士通株式会社
发明人： KOYAKATA HIDEKI , IWAMATSU TAKANORI
IPC分类号： H04B1/10
摘要： PROBLEM TO BE SOLVED: To provide a receiver that highly precisely detects a generation period of an unwanted wave of an input signal.SOLUTION: A receiver 2 includes: an RF processing section 82 that outputs a first input signal; an RF processing section 92 that outputs a second input signal; a composition section 101 that generates an anti-phase signal of the first input signal and a composite signal of the anti-phase signal and the first input signal; a detection section 102 that detects a period where a level of the composite signal is at least a first threshold value as a generation period of an unwanted wave; an unwanted wave erasure section 84 that deletes an unwanted wave contained in the first input signal during the detected generation period, and an unwanted wave deletion section 94 that deletes an unwanted wave contained in the second input signal during the detected generation period.
摘要翻译：要解决的问题：提供高精度地检测输入信号的不想要的波的产生周期的接收机。解决方案：接收机2包括：RF处理部分82，其输出第一输入信号; 输出第二输入信号的RF处理部92; 合成部101，其生成第一输入信号的反相信号和反相信号与第一输入信号的合成信号; 检测部件102，其检测复合信号的电平至少为第一阈值的周期，作为不想要的波的产生周期; 在检测到的生成周期期间删除包含在第一输入信号中的不需要的波的不需要的波擦除部分84以及在检测到的生成周期期间删除包含在第二输入信号中的不想要的波的不想要的波浪删除部分94。版权所有（C）2012，JPO＆INPIT

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