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公开(公告)号：US08520772B2
公开(公告)日：2013-08-27
申请号：US13039765
申请日：2011-03-03
申请人： Kenji Suzuki , Michiko Satou
发明人： Kenji Suzuki , Michiko Satou
IPC分类号： H04K1/02
CPC分类号： H03F1/3247 , H03F1/34 , H03F3/24 , H03F2200/336 , H03F2201/3233 , H04B17/13 , H04B17/24 , H04B17/354 , H04B2001/0433 , H04W52/228 , H04W52/367
摘要： A communication device that compensates a distortion of a transmission signal, amplifies the compensated transmission signal by an amplifier, and outputs the signal. The device includes a storage unit that stores a transmission characteristic of a transmission power of the communication device, a correcting unit that calculates a power value at a set transmission frequency by referring to the storage unit and that corrects a feedback signal of the transmission signal amplifier by the amplifier based on the calculated power value and a maximum transmission power defined by the communication device, and a calculating unit that calculates a distortion compensation coefficient based on the transmission signal and the feedback signal corrected.
摘要翻译： 补偿发送信号的失真的通信装置，通过放大器放大经补偿的发送信号，并输出该信号。 该装置包括：存储单元，存储通信装置的发送功率的传输特性;校正单元，其通过参照存储单元计算设定的发送频率的功率值，并且校正发送信号放大器的反馈信号 通过放大器基于计算出的功率值和由通信设备定义的最大发送功率，以及计算单元，其基于发送信号和校正的反馈信号来计算失真补偿系数。
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公开(公告)号：US20110124304A1
公开(公告)日：2011-05-26
申请号：US13017238
申请日：2011-01-31
IPC分类号： H04B1/00
CPC分类号： H03F3/24 , H03F1/3241 , H03F1/3247 , H03F3/189 , H03F2200/105 , H03F2200/321 , H03F2200/336 , H03F2201/3233 , H04B2001/0425
摘要： A transmission apparatus performs distortion compensation on a power amplifier using a distortion compensator that includes an adaptive equalizer. The transmission apparatus includes a filter coefficient storage unit that stores filter coefficients that are each set in a digital filter of the adaptive equalizer; a filter coefficient setting unit that selects a filter coefficient from the filter coefficient storage unit according to a feedback signal from the power amplifier; an adjustment value storage unit that stores adjustment values in association with transmission frequencies, the adjustment values each being used by the filter coefficient setting unit to select the filter coefficient; and an initial value setting unit that reads an adjustment value corresponding to a transmission frequency, which is set in the transmission apparatus, from the adjustment value storage unit and sets the read adjustment value as an initial value of the adjustment value used for selecting the filter coefficient.
摘要翻译： 发送装置使用包括自适应均衡器的失真补偿器对功率放大器进行失真补偿。 发送装置包括滤波器系数存储单元，其存储各自设置在自适应均衡器的数字滤波器中的滤波器系数; 滤波器系数设定单元，根据来自功率放大器的反馈信号，从滤波器系数存储单元中选择滤波器系数; 调整值存储单元，其存储与发送频率相关联的调整值，所述调整值存储单元各自由所述滤波器系数设定单元使用以选择所述滤波器系数; 以及初始值设定单元，从所述调整值存储单元读取与所述发送装置中设定的发送频率对应的调整值，并将所述读取的调整值设定为用于选择所述过滤器的调整值的初始值 系数。
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公开(公告)号：US20090291653A1
公开(公告)日：2009-11-26
申请号：US12342417
申请日：2008-12-23
申请人： Kenji Suzuki , Toshikazu Tsuchiya , Michiko Satou
发明人： Kenji Suzuki , Toshikazu Tsuchiya , Michiko Satou
CPC分类号： H03G3/3042 , H03F1/3241 , H04W52/16 , H04W52/36 , H04W52/52
摘要： A radio transmission apparatus performs peak suppression processing in the two stages of pre-peak suppression processing and post-peak suppression processing. The gain adjustment processing of transmission power is performed in the two stages of coarse gain adjustment processing, prior to the pre-peak suppression processing, and fine gain adjustment processing prior to the post-peak suppression processing. The fine gain adjustment processing has a smaller adjustment step width than the coarse gain adjustment processing, and can adjust the transmission power in response to a small variation of the transmission power. In the pre-peak suppression processing, a peak suppression value corresponding to the gain set by the coarse gain adjustment processing is set on the basis of each value being preset in a table for each transmission power value. In the post-peak suppression processing, the peak suppression value corresponding to the gain modified by the fine gain adjustment processing is obtained by calculation.
摘要翻译： 无线发送装置在前峰抑制处理和峰值后抑制处理的两个阶段中进行峰值抑制处理。 传输功率的增益调整处理是在前置峰值抑制处理之前的两级粗调增益调整处理和在峰值后抑制处理之前的精细增益调整处理中进行的。 精细增益调整处理具有比粗调增益调整处理更小的调整步长，并且可以响应于发送功率的小的变化来调整发送功率。 在前峰抑制处理中，基于对于每个发送功率值在表中预先设定的每个值来设定与通过粗调增益调整处理设定的增益相对应的峰值抑制值。 在峰值后抑制处理中，通过计算获得与通过微细增益调整处理修改的增益相对应的峰值抑制值。
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公开(公告)号：US20090104882A1
公开(公告)日：2009-04-23
申请号：US12242991
申请日：2008-10-01
IPC分类号： H04B1/04
CPC分类号： H03F3/24 , H03F1/3241 , H03F1/3294 , H03F2200/204 , H03F2200/207 , H03F2200/336 , H03F2200/451 , H03F2201/3233 , H04B2001/0425
摘要： A radio transmission apparatus does not update the distortion compensation coefficient for a certain period, which is shorter than the transmission period, after the transmission period start timing. Instead, update operation of the distortion compensation coefficient is carried out after the lapse of a certain period from the start timing. Further, in order to shorten the convergence time of the distortion compensation coefficient, the radio transmission apparatus performs interpolation processing of the distortion compensation coefficient. The distortion compensation coefficient is given to a two-dimensional coordinate (address): one is the power level of an input transmission signal and the other is the difference of power between the input transmission signal and a feedback signal. The distortion compensation coefficient at a predetermined coordinate is updated to an interpolated value, which is obtained through interpolation calculation using the distortion compensation coefficient at a coordinate adjacent to the predetermined coordinate.
摘要翻译： 在发送周期开始定时之后，无线发送装置不更新比发送期间短的一定期间的失真补偿系数。 相反，在从开始定时经过一段时间之后，执行失真补偿系数的更新操作。 此外，为了缩短失真补偿系数的收敛时间，无线发送装置进行失真补偿系数的内插处理。 失真补偿系数被赋予二维坐标（地址）：一个是输入传输信号的功率电平，另一个是输入传输信号与反馈信号之间的功率差。 将预定坐标处的失真补偿系数更新为通过使用与预定坐标相邻的坐标处的失真补偿系数的内插计算而获得的内插值。
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公开(公告)号：US08385857B2
公开(公告)日：2013-02-26
申请号：US12780256
申请日：2010-05-14
申请人： Kenji Suzuki , Toshikazu Tsuchiya , Michiko Satou
发明人： Kenji Suzuki , Toshikazu Tsuchiya , Michiko Satou
IPC分类号： H04B1/04
CPC分类号： H03F1/3247 , H03F2201/3233
摘要： A wireless communication apparatus configured to amplify a transmission signal at an amplifier and transmit the amplified transmission signal, the wireless communication apparatus includes a memory configured to store a distortion compensation coefficient for compensating a distortion characteristic of the amplifier, and an electrical-power measuring unit configured to measure electrical power of the transmission signal. The wireless communication apparatus includes a gain control unit configured to calculate a gain adjustment value for correcting the distortion compensation coefficient stored in the memory based on a power value measured by the electrical-power measuring unit, and a distortion-compensation processing unit configured to perform distortion compensation on the transmission signal based on the distortion compensation coefficient stored in the memory and the gain adjustment value.
摘要翻译： 一种无线通信装置，被配置为放大放大器的发送信号并发送放大的发送信号，所述无线通信装置包括：存储器，被配置为存储用于补偿所述放大器的失真特性的失真补偿系数;以及电力测量单元 被配置为测量所述传输信号的电功率。 无线通信装置包括：增益控制单元，被配置为基于由电力测量单元测量的功率值来计算用于校正存储在存储器中的失真补偿系数的增益调整值;以及失真补偿处理单元，被配置为执行 基于存储在存储器中的失真补偿系数和增益调整值对传输信号进行失真补偿。
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公开(公告)号：US20110222630A1
公开(公告)日：2011-09-15
申请号：US13039765
申请日：2011-03-03
申请人： Kenji Suzuki , Michiko Satou
发明人： Kenji Suzuki , Michiko Satou
IPC分类号： H04L25/49
CPC分类号： H03F1/3247 , H03F1/34 , H03F3/24 , H03F2200/336 , H03F2201/3233 , H04B17/13 , H04B17/24 , H04B17/354 , H04B2001/0433 , H04W52/228 , H04W52/367
摘要： A communication device that compensates a distortion of a transmission signal, amplifies the compensated transmission signal by an amplifier, and outputs the signal. The device includes a storage unit that stores a transmission characteristic of a transmission power of the communication device, a correcting unit that calculates a power value at a set transmission frequency by referring to the storage unit and that corrects a feedback signal of the transmission signal amplifier by the amplifier based on the calculated power value and a maximum transmission power defined by the communication device, and a calculating unit that calculates a distortion compensation coefficient based on the transmission signal and the feedback signal corrected.
摘要翻译： 补偿发送信号的失真的通信装置，通过放大器放大经补偿的发送信号，并输出该信号。 该装置包括：存储单元，存储通信装置的发送功率的传输特性;校正单元，其通过参照存储单元计算设定的发送频率的功率值，并且校正发送信号放大器的反馈信号 通过放大器基于计算出的功率值和由通信设备定义的最大发送功率，以及计算单元，其基于发送信号和校正的反馈信号来计算失真补偿系数。
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公开(公告)号：US20100304694A1
公开(公告)日：2010-12-02
申请号：US12780256
申请日：2010-05-14
申请人： Kenji Suzuki , Toshikazu Tsuchiya , Michiko Satou
发明人： Kenji Suzuki , Toshikazu Tsuchiya , Michiko Satou
IPC分类号： H04B1/04
CPC分类号： H03F1/3247 , H03F2201/3233
摘要： A wireless communication apparatus configured to amplify a transmission signal at an amplifier and transmit the amplified transmission signal, the wireless communication apparatus includes a memory configured to store a distortion compensation coefficient for compensating a distortion characteristic of the amplifier, and an electrical-power measuring unit configured to measure electrical power of the transmission signal. The wireless communication apparatus includes a gain control unit configured to calculate a gain adjustment value for correcting the distortion compensation coefficient stored in the memory based on a power value measured by the electrical-power measuring unit, and a distortion-compensation processing unit configured to perform distortion compensation on the transmission signal based on the distortion compensation coefficient stored in the memory and the gain adjustment value.
摘要翻译： 一种无线通信装置，被配置为放大放大器的发送信号并发送放大的发送信号，所述无线通信装置包括：存储器，被配置为存储用于补偿所述放大器的失真特性的失真补偿系数;以及电力测量单元 被配置为测量所述传输信号的电功率。 无线通信装置包括：增益控制单元，被配置为基于由电力测量单元测量的功率值来计算用于校正存储在存储器中的失真补偿系数的增益调整值;以及失真补偿处理单元，被配置为执行 基于存储在存储器中的失真补偿系数和增益调整值对传输信号进行失真补偿。
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