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公开(公告)号：US20080013646A1
公开(公告)日：2008-01-17
申请号：US11822946
申请日：2007-07-11
IPC分类号： H04L25/49
CPC分类号： H04B1/0475
摘要： A peak suppression threshold value control unit receives an input of quality requirement information, such as a modulation system and coding ratio, from a baseband signal generation unit, determines a threshold value of a peak suppression unit based on the quality requirement information and outputs the threshold value to a peak suppression unit. The peak suppression unit applies a peak suppression control to a baseband signal input from a baseband signal generation unit based on the threshold value and outputs a signal (i.e., a peak suppression signal) applied by the peak suppression process.
摘要翻译： 峰值抑制阈值控制单元从基带信号生成单元接收诸如调制系统和编码率的质量要求信息的输入，基于质量要求信息确定峰值抑制单元的阈值，并输出阈值 值到峰值抑制单元。 峰值抑制单元基于阈值对从基带信号生成单元输入的基带信号进行峰值抑制控制，并输出通过峰值抑制处理施加的信号（即，峰值抑制信号）。
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公开(公告)号：US08102941B2
公开(公告)日：2012-01-24
申请号：US11822946
申请日：2007-07-11
CPC分类号： H04B1/0475
摘要： A peak suppression threshold value control unit receives an input of quality requirement information, such as a modulation system and coding ratio, from a baseband signal generation unit, determines a threshold value of a peak suppression unit based on the quality requirement information and outputs the threshold value to a peak suppression unit. The peak suppression unit applies a peak suppression control to a baseband signal input from a baseband signal generation unit based on the threshold value and outputs a signal (i.e., a peak suppression signal) applied by the peak suppression process.
摘要翻译： 峰值抑制阈值控制单元从基带信号生成单元接收诸如调制系统和编码比的质量要求信息的输入，基于质量要求信息确定峰值抑制单元的阈值，并输出阈值 值到峰值抑制单元。 峰值抑制单元基于阈值对从基带信号生成单元输入的基带信号进行峰值抑制控制，并输出通过峰值抑制处理施加的信号（即，峰值抑制信号）。
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23.发明授权Peak suppression method, peak suppression apparatus and wireless transmission apparatus 有权峰值抑制方法，峰值抑制装置和无线传输装置公开(公告)号：US07839949B2
公开(公告)日：2010-11-23
申请号：US11482618
申请日：2006-07-07
IPC分类号： H04L25/03
CPC分类号： H04L27/2624
摘要： The present invention provides a peak suppression method, including a first step for detecting characteristic information of a peak part of a transmission signal; and a second step for changing a suppression method for the peak part based on the characteristic information.
摘要翻译： 本发明提供一种峰值抑制方法，包括：检测发送信号的峰值部分的特征信息的第一步骤; 以及基于特征信息改变峰值部分的抑制方法的第二步骤。
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公开(公告)号：US20080200133A1
公开(公告)日：2008-08-21
申请号：US12076825
申请日：2008-03-24
IPC分类号： H04B1/02
CPC分类号： H04B1/707 , H04B2201/70706 , H04L5/0021 , H04L27/2624
摘要： A radio transmission apparatus executing peak suppression processing to an input signal in at least two stages, includes a first peak detector detecting a first peak, a maximum peak among peaks exceeding a first threshold, for a plurality of envelopes included in a predetermined input signal section; a second peak detector detecting a second peak exceeding a second threshold, on the basis of each input signal envelope; a first peak suppression unit suppressing the predetermined input signal section to the limit of a first level based on the first peak; a modulation signal generation unit generating a modulated signal modulated from the input signal suppressed by the first peak suppression unit; and a second peak suppression unit suppressing the second peak to the limit of a second level by each modulated signal envelope based on the first level and the second peak.
摘要翻译： 对至少两级对输入信号执行峰值抑制处理的无线发送装置包括检测包括在预定输入信号部分中的多个信封的第一峰值，检测超过第一阈值的峰值中的最大峰值的第一峰值检测器 ; 基于每个输入信号包络检测第二峰值检测器，检测超过第二阈值的第二峰值; 第一峰值抑制单元，基于第一峰值将预定输入信号部分抑制到第一电平的极限; 调制信号生成单元，生成由所述第一峰值抑制单元抑制的输入信号调制的调制信号; 以及第二峰值抑制单元，其基于第一电平和第二峰值，通过每个调制信号包络将第二峰值抑制到第二电平的极限。
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公开(公告)号：US07388926B2
公开(公告)日：2008-06-17
申请号：US10945316
申请日：2004-09-20
CPC分类号： H04L27/0014 , H03C2200/0058 , H03C2200/0079 , H04L27/364 , H04L2027/0016 , H04L2027/0018
摘要： A disclosed quadrature modulation system inputs an inphase signal component and an orthogonal signal component, and outputs an output signal that is quadrature modulated by a quadrature modulator. The quadrature modulation system calculates a first cumulative total based on the inphase signal component input into the quadrature modulator and an inphase signal component of a feedback signal obtained from the output signal. The quadrature modulation system calculates a second cumulative total based on the orthogonal signal component input into the quadrature modulator and an orthogonal signal component of the feedback signal. Based on the first and the second cumulative totals, a time difference between the inphase signal component and the orthogonal signal component is determined. The inphase signal component and the orthogonal signal component to be provided to the quadrature modulator are adjusted based on the time difference such that the time difference is compensated for.
摘要翻译： 所公开的正交调制系统输入同相信号分量和正交信号分量，并输出由正交调制器正交调制的输出信号。 正交调制系统基于输入到正交调制器的同相信号分量和从输出信号获得的反馈信号的同相信号分量来计算第一累积总数。 正交调制系统基于输入到正交调制器的正交信号分量和反馈信号的正交信号分量来计算第二累积总数。 基于第一和第二累积总数，确定同相信号分量和正交信号分量之间的时间差。 基于时间差来调整要提供给正交调制器的同相信号分量和正交信号分量，以便补偿时间差。
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公开(公告)号：US20080002983A1
公开(公告)日：2008-01-03
申请号：US11589898
申请日：2006-10-31
申请人： Hiroyoshi Ishikawa , Nobukazu Fudaba , Hajime Hamada , Kazuo Nagatani , Yasuhito Funyu , Norio Tozawa , Tokuro Kubo
发明人： Hiroyoshi Ishikawa , Nobukazu Fudaba , Hajime Hamada , Kazuo Nagatani , Yasuhito Funyu , Norio Tozawa , Tokuro Kubo
IPC分类号： H04B10/00
CPC分类号： H03F1/0266 , H03F1/0205 , H03F1/0244 , H03F1/32 , H03F3/24
摘要： A bias control signal generation unit detects ON and OFF of a transmission signal input to an amplifier and having a property of a burst according to burst information. The bias control signal generation unit controls a bias voltage to be applied to an amplifier such that an idle current flowing through the amplifier can be flowing in a larger amount in a transmission OFF period, and can return to a normal level in a transmission ON period.
摘要翻译： 偏置控制信号生成单元根据突发信息检测输入到放大器的发送信号的接通和关断，并具有突发的性质。 偏置控制信号发生单元控制要施加到放大器的偏置电压，使得流过放大器的空闲电流可以在传输关闭时段内以较大的量流动，并且可以在传输开启周期中恢复到正常电平 。
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公开(公告)号：US20070195909A1
公开(公告)日：2007-08-23
申请号：US11443072
申请日：2006-05-31
IPC分类号： H04B15/00
CPC分类号： H04L27/2624 , H03G7/00 , H03G11/00
摘要： As in a conventional technology, a hard clipping process and a filtering process are performed on a transmission signal. An original transmission signal is subtracted from a signal on which the processes have been performed, and an inverse sign signal to the suppressed signal is retrieved. By giving a gain to the signal, and adding up to the original transmission signal, a peak voltage is suppressed. The gain can be a ratio of a difference signal between a hard clipped signal and an original transmission signal to a signal of suppression of a filtered signal from the original transmission signal, or a value determined by a simulation depending on the cutoff frequency of a low pass filter used in the filtering process.
摘要翻译： 像传统技术一样，对发送信号执行硬削波处理和滤波处理。 从已经执行了处理的信号中减去原始发送信号，并且检索到抑制信号的逆信号。 通过给信号增益，并加上原始的传输信号，抑制峰值电压。 增益可以是硬削波信号和原始发送信号之间的差分信号与来自原始发送信号的滤波信号的抑制信号的比率，或者通过根据低频的截止频率的模拟确定的值 过滤器用于过滤过程。
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公开(公告)号：US20050238114A1
公开(公告)日：2005-10-27
申请号：US10945316
申请日：2004-09-20
CPC分类号： H04L27/0014 , H03C2200/0058 , H03C2200/0079 , H04L27/364 , H04L2027/0016 , H04L2027/0018
摘要： A disclosed quadrature modulation system inputs an inphase signal component and an orthogonal signal component, and outputs an output signal that is quadrature modulated by a quadrature modulator. The quadrature modulation system calculates a first cumulative total based on the inphase signal component input into the quadrature modulator and an inphase signal component of a feedback signal obtained from the output signal. The quadrature modulation system calculates a second cumulative total based on the orthogonal signal component input into the quadrature modulator and an orthogonal signal component of the feedback signal. Based on the first and the second cumulative totals, a time difference between the inphase signal component and the orthogonal signal component is determined. The inphase signal component and the orthogonal signal component to be provided to the quadrature modulator are adjusted based on the time difference such that the time difference is compensated for.
摘要翻译： 所公开的正交调制系统输入同相信号分量和正交信号分量，并输出由正交调制器正交调制的输出信号。 正交调制系统基于输入到正交调制器的同相信号分量和从输出信号获得的反馈信号的同相信号分量来计算第一累积总数。 正交调制系统基于输入到正交调制器的正交信号分量和反馈信号的正交信号分量来计算第二累积总数。 基于第一和第二累积总数，确定同相信号分量和正交信号分量之间的时间差。 基于时间差来调整要提供给正交调制器的同相信号分量和正交信号分量，以便补偿时间差。
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公开(公告)号：US20050219118A1
公开(公告)日：2005-10-06
申请号：US10920994
申请日：2004-08-18
CPC分类号： H04B17/0085 , H01Q3/267 , H04B17/12
摘要： Disclosed is a phase calibration method for inserting a calibration signal (SC) into main signals (SM1 to SMn) of a plurality of branches in turn, estimating the phase characteristic of an analog circuit to which a respective one of the main signals is input and calibrating the phase of each main signal. The method includes steps of outputting a first combined signal obtained by combining output signals from the analog circuits (62a to 62n) in all branches, outputting a second combined signal obtained by combining the main signals in all branches, extracting the calibration signal by removing the second combined signal from the first combined signal in a calibration signal extracting unit (64), estimating the phase characteristics of the analog circuits, to which the main signals having the inserted calibration signal are input, based upon a change in phase of the calibration signal, and subjecting the main signals to phase adjustment having characteristics that are opposite the phase characteristics.
摘要翻译： 公开了一种用于依次将多个分支的主信号（SM 1至SM n）插入校准信号（SC）的相位校准方法，估计相应一个主信号被输入的模拟电路的相位特性 并校准每个主信号的相位。 该方法包括以下步骤：输出通过在所有分支中组合来自模拟电路（62a至62n）的输出信号而获得的第一组合信号，输出通过组合所有分支中的主信号而获得的第二组合信号，通过 在校准信号提取单元（64）中从所述第一组合信号中去除所述第二组合信号，基于所述校准信号提取单元（64）的相位变化估计输入了具有插入的校准信号的所述主信号的所述模拟电路的相位特性 校准信号，并对主信号进行相位调整，具有与相位特性相反的特性。
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公开(公告)号：US08452250B2
公开(公告)日：2013-05-28
申请号：US11819984
申请日：2007-06-29
IPC分类号： H04B1/30
CPC分类号： H04L25/061 , H04L27/364
摘要： A DC offset component that occurs in a quadrature modulation system, and that is contained in a modulated transmit signal, is compensated for with good accuracy. In a DC offset compensation method according to the present invention, a DC offset correction value obtained from the transmit signal is weighted in accordance with the signal level of an input signal which is transmit data input to the quadrature modulation system, and the DC offset component contained in the transmit signal is compensated for by using the thus weighted DC offset correction value.
摘要翻译： 发生在正交调制系统中并且包含在调制的发送信号中的DC偏移分量以高精度被补偿。 在根据本发明的DC偏移补偿方法中，从发送信号获得的DC偏移校正值根据输入到正交调制系统的发送数据的输入信号的信号电平加权，并且DC偏移分量 通过使用这样加权的DC偏移校正值来补偿包含在发送信号中的发送信号。
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