公开(公告)号：US08489043B2

公开(公告)日：2013-07-16

申请号：US13006038

申请日：2011-01-13

申请人： Gweon-Do Jo ,  Jung-Hoon Oh ,  Joon-Hyung Kim ,  Young-Hoon Kim ,  Jae-Ho Jung ,  Hyun-Kyu Chung

发明人： Gweon-Do Jo ,  Jung-Hoon Oh ,  Joon-Hyung Kim ,  Young-Hoon Kim ,  Jae-Ho Jung ,  Hyun-Kyu Chung

IPC分类号： H04B1/04 ,  H04K3/00

CPC分类号： H03F1/3247 ,  H03F1/26 ,  H03F3/24

摘要： A distortion compensation apparatus and an apparatus and method for transmitting a signal are provided. The distortion compensation apparatus can extract precise distortion information by adding an additional signal to an input signal during the compensation of distortion in a nonlinear apparatus, and can linearize the nonlinear properties of the nonlinear apparatus using the distortion information. The apparatus for transmitting a signal can output a signal linearized by the same method as that used by the distortion compensation apparatus.

摘要翻译： 提供了一种用于发送信号的失真补偿装置和装置和方法。 失真补偿装置可以通过在非线性装置的失真补偿期间向输入信号添加附加信号来提取精确的失真信息，并且可以使用失真信息线性化非线性装置的非线性特性。 用于发送信号的装置可以输出与由失真补偿装置使用的方法相同的方法线性化的信号。

公开(公告)号：US20120025909A1

公开(公告)日：2012-02-02

申请号：US13006038

申请日：2011-01-13

申请人： Gweon-Do Jo ,  Jung-Hoon Oh ,  Joon-Hyung Kim ,  Young-Hoon Kim ,  Jae-Ho Jung ,  Hyun-Kyu Chung

发明人： Gweon-Do Jo ,  Jung-Hoon Oh ,  Joon-Hyung Kim ,  Young-Hoon Kim ,  Jae-Ho Jung ,  Hyun-Kyu Chung

IPC分类号： H03F1/26

CPC分类号： H03F1/3247 ,  H03F1/26 ,  H03F3/24

摘要： A distortion compensation apparatus and an apparatus and method for transmitting a signal are provided. The distortion compensation apparatus can extract precise distortion information by adding an additional signal to an input signal during the compensation of distortion in a nonlinear apparatus, and can linearize the nonlinear properties of the nonlinear apparatus using the distortion information. The apparatus for transmitting a signal can output a signal linearized by the same method as that used by the distortion compensation apparatus.

摘要翻译： 提供了一种用于发送信号的失真补偿装置和装置和方法。 失真补偿装置可以通过在非线性装置的失真补偿期间向输入信号添加附加信号来提取精确的失真信息，并且可以使用失真信息线性化非线性装置的非线性特性。 用于发送信号的装置可以输出与由失真补偿装置使用的方法相同的方法线性化的信号。

公开(公告)号：US08648659B2

公开(公告)日：2014-02-11

申请号：US13329824

申请日：2011-12-19

申请人： Jung-Hoon Oh ,  Joon-Hyung Kim ,  Gweon-Do Jo ,  Young-Hoon Kim

发明人： Jung-Hoon Oh ,  Joon-Hyung Kim ,  Gweon-Do Jo ,  Young-Hoon Kim

IPC分类号： H03F1/26

CPC分类号： H03F1/0266 ,  H03F1/3247 ,  H03F3/24 ,  H03F2200/102 ,  H04L27/368

摘要： A digital pre-distortion (DPD) power amplifying apparatus and a method for digitally controlling synchronization of the DPD power amplifying apparatus, which includes a power amplifier, a bias shifter and a DPD unit, are provided. The method includes acquiring a DPD path delay time at a path along which an input signal is fed back to the DPD unit; delaying an input signal incoming to the power amplifier by the DPD path delay time and acquiring synchronization by delaying a bias signal a predetermined number of times until the bias signal and the delayed input signal are synchronized with each other; and in response to synchronization between the bias signal and the delayed input signal being established, pre-distorting the input signal according to a feedback signal output from the power amplifier.

摘要翻译： 提供了数字预失真（DPD）功率放大装置和用于数字控制DPD功率放大装置的同步的方法，其包括功率放大器，偏置移位器和DPD单元。 该方法包括在输入信号被反馈到DPD单元的路径处获取DPD路径延迟时间; 延迟通过DPD路径延迟时间输入到功率放大器的输入信号，并通过将偏置信号延迟预定次数获得同步，直到偏置信号和延迟的输入信号彼此同步; 并且响应于所建立的偏置信号和延迟的输入信号之间的同步，根据从功率放大器输出的反馈信号对输入信号进行预失真。

公开(公告)号：US20120154036A1

公开(公告)日：2012-06-21

申请号：US13329824

申请日：2011-12-19

申请人： Jung-Hoon OH ,  Joon-Hyung Kim ,  Gweon-Do Jo ,  Young-Hoon Kim

发明人： Jung-Hoon OH ,  Joon-Hyung Kim ,  Gweon-Do Jo ,  Young-Hoon Kim

IPC分类号： H03F1/26

CPC分类号： H03F1/0266 ,  H03F1/3247 ,  H03F3/24 ,  H03F2200/102 ,  H04L27/368

摘要： A digital pre-distortion (DPD) power amplifying apparatus and a method for digitally controlling synchronization of the DPD power amplifying apparatus, which includes a power amplifier, a bias shifter and a DPD unit, are provided. The method includes acquiring a DPD path delay time at a path along which an input signal is fed back to the DPD unit; delaying an input signal incoming to the power amplifier by the DPD path delay time and acquiring synchronization by delaying a bias signal a predetermined number of times until the bias signal and the delayed input signal are synchronized with each other; and in response to synchronization between the bias signal and the delayed input signal being established, pre-distorting the input signal according to a feedback signal output from the power amplifier.

摘要翻译： 提供了数字预失真（DPD）功率放大装置和用于数字控制DPD功率放大装置的同步的方法，其包括功率放大器，偏置移位器和DPD单元。 该方法包括在输入信号被反馈到DPD单元的路径处获取DPD路径延迟时间; 延迟通过DPD路径延迟时间输入到功率放大器的输入信号，并通过将偏置信号延迟预定次数获得同步，直到偏置信号和延迟的输入信号彼此同步; 并且响应于所建立的偏置信号和延迟的输入信号之间的同步，根据从功率放大器输出的反馈信号对输入信号进行预失真。

公开(公告)号：US20110063026A1

公开(公告)日：2011-03-17

申请号：US12883580

申请日：2010-09-16

申请人： Jae-Ho JUNG ,  Gweon-Do Jo ,  Young-Hoon Kim ,  Jung-Hoon Oh ,  Kwang-Chun Lee

发明人： Jae-Ho JUNG ,  Gweon-Do Jo ,  Young-Hoon Kim ,  Jung-Hoon Oh ,  Kwang-Chun Lee

IPC分类号： H03F1/26

CPC分类号： H03F1/3247 ,  H03F1/0266 ,  H03F3/189 ,  H03F3/24 ,  H03F2201/3233

摘要： A pre-distortion apparatus of a power amplifier includes: a pre-distortion unit configured to generate a pre-distorted signal of an input signal by calculating a magnitude of the input signal and outputting a complex correction coefficient corresponding to the calculated magnitude of the input signal, and provide the generated pre-distorted signal as an input of the power amplifier; and a complex correct coefficient update unit configured to generate an error signal by comparing an output signal of the power amplifier with the input signal and updating the complex correction coefficient to minimize a magnitude of the generated error signal, wherein the pre-distortion unit provides a constant bias value corresponding to the magnitude of the input signal as a bias of the power amplifier while updating the complex correction coefficient.

摘要翻译： 功率放大器的预失真装置包括：预失真单元，被配置为通过计算输入信号的幅度来产生输入信号的预失真信号，并输出与所计算的输入的幅度相对应的复数校正系数 信号，并且将生成的预失真信号提供给功率放大器的输入; 以及复数正确系数更新单元，其被配置为通过将所述功率放大器的输出信号与所述输入信号进行比较来生成误差信号，并更新所述复数校正系数以最小化所生成的误差信号的幅度，其中所述预失真单元提供 对应于作为功率放大器的偏置的输入信号的大小的恒定偏置值，同时更新复数校正系数。

公开(公告)号：US08018278B2

公开(公告)日：2011-09-13

申请号：US12883580

申请日：2010-09-16

申请人： Jae-Ho Jung ,  Gweon-Do Jo ,  Young-Hoon Kim ,  Jung-Hoon Oh ,  Kwang-Chun Lee

发明人： Jae-Ho Jung ,  Gweon-Do Jo ,  Young-Hoon Kim ,  Jung-Hoon Oh ,  Kwang-Chun Lee

IPC分类号： H03F1/26

CPC分类号： H03F1/3247 ,  H03F1/0266 ,  H03F3/189 ,  H03F3/24 ,  H03F2201/3233

摘要： A pre-distortion apparatus of a power amplifier includes: a pre-distortion unit configured to generate a pre-distorted signal of an input signal by calculating a magnitude of the input signal and outputting a complex correction coefficient corresponding to the calculated magnitude of the input signal, and provide the generated pre-distorted signal as an input of the power amplifier; and a complex correct coefficient update unit configured to generate an error signal by comparing an output signal of the power amplifier with the input signal and updating the complex correction coefficient to minimize a magnitude of the generated error signal, wherein the pre-distortion unit provides a constant bias value corresponding to the magnitude of the input signal as a bias of the power amplifier while updating the complex correction coefficient.

摘要翻译： 功率放大器的预失真装置包括：预失真单元，被配置为通过计算输入信号的幅度来产生输入信号的预失真信号，并输出与所计算的输入的幅度相对应的复数校正系数 信号，并且将生成的预失真信号提供给功率放大器的输入; 以及复数正确系数更新单元，其被配置为通过将所述功率放大器的输出信号与所述输入信号进行比较来生成误差信号，并更新所述复数校正系数以最小化所生成的误差信号的幅度，其中所述预失真单元提供 对应于作为功率放大器的偏置的输入信号的大小的恒定偏置值，同时更新复数校正系数。

公开(公告)号：US08704595B2

公开(公告)日：2014-04-22

申请号：US13331377

申请日：2011-12-20

申请人： Young-Hoon Kim ,  Gweon Do Jo ,  Jung Hoon Oh ,  Jae Ho Jung

发明人： Young-Hoon Kim ,  Gweon Do Jo ,  Jung Hoon Oh ,  Jae Ho Jung

IPC分类号： H03F1/26

CPC分类号： H03F1/3247 ,  H03F1/3258 ,  H03F2201/3209 ,  H03F2201/3212 ,  H03F2201/3224

摘要： Provided is a predistortion apparatus which performs predistortion by reflecting a memory effect when linearizing an output of a nonlinear device using a wideband signal. The predistortion apparatus includes a predistortion unit and a coefficient extraction unit. The predistortion unit selects and outputs one of outputs of the sub-predistorters as an output signal according to intensity of an input signal. The coefficient extraction unit selects one of a plurality of coefficient extractors according to intensity of a nonlinear signal which is generated in response to the output signal, extracts a plurality of predistortion coefficients with the nonlinear signal and the output signal, and delivers the extracted predistortion coefficients to the predistortion unit. Accordingly, the memory effect is reflected even when the input signal is a wideband signal.

摘要翻译： 提供一种预失真装置，其通过使用宽带信号线性化非线性装置的输出来反映存储器效应来执行预失真。 预失真装置包括预失真单元和系数提取单元。 预失真单元根据输入信号的强度选择并输出副预失真器的输出之一作为输出信号。 系数提取单元根据输出信号产生的非线性信号的强度，选择多个系数提取器中的一个，用非线性信号和输出信号提取多个预失真系数，并将提取的预失真系数 到预失真单位。 因此，即使当输入信号是宽带信号时也会反映存储效应。

公开(公告)号：US08761111B2

公开(公告)日：2014-06-24

申请号：US13596296

申请日：2012-08-28

申请人： Kapseok Chang ,  Young-Hoon Kim ,  Woo Yong Lee ,  Hyun Kyu Chung

发明人： Kapseok Chang ,  Young-Hoon Kim ,  Woo Yong Lee ,  Hyun Kyu Chung

IPC分类号： H04W4/00

CPC分类号： H04L5/0007 ,  H04B7/14 ,  H04L5/0032 ,  H04L5/0037 ,  H04L5/0048 ,  H04L25/03866 ,  H04L27/2613 ,  H04L27/2655

摘要： Provided is an apparatus for allocating a sequence to a synchronization channel for a node identification (ID), the apparatus including: a base node sequence generator to generate a base sequence that is a sequence for a node ID of a base node; a relay node sequence generator to generate a relay sequence that is a sequence for a node ID of a relay node by transforming the base sequence; a baseband signal generator to generate a baseband signal by mapping the base sequence or the relay sequence to a frequency domain and a time domain; and a transmitter to transmit the baseband signal.

摘要翻译： 提供了一种用于将序列分配给用于节点标识（ID）的同步信道的装置，所述装置包括：基本节点序列生成器，用于生成作为基本节点的节点ID的序列的基本序列; 中继节点序列发生器，用于通过转换所述基本序列来产生作为中继节点的节点ID的序列的中继序列; 基带信号发生器，用于通过将基本序列或中继序列映射到频域和时域来产生基带信号; 以及用于发送基带信号的发射机。

公开(公告)号：US08743796B2

公开(公告)日：2014-06-03

申请号：US12641679

申请日：2009-12-18

申请人： Kapseok Chang ,  Young-Hoon Kim ,  Woo Yong Lee ,  Hyun Kyu Chung

发明人： Kapseok Chang ,  Young-Hoon Kim ,  Woo Yong Lee ,  Hyun Kyu Chung

IPC分类号： H04W4/00

CPC分类号： H04L5/0007 ,  H04B7/14 ,  H04L5/0032 ,  H04L5/0037 ,  H04L5/0048 ,  H04L25/03866 ,  H04L27/2613 ,  H04L27/2655

摘要： Provided is an apparatus for allocating a sequence to a synchronization channel for a node identification (ID), the apparatus including: a base node sequence generator to generate a base sequence that is a sequence for a node ID of a base node; a relay node sequence generator to generate a relay sequence that is a sequence for a node ID of a relay node by transforming the base sequence; a baseband signal generator to generate a baseband signal by mapping the base sequence or the relay sequence to a frequency domain and a time domain; and a transmitter to transmit the baseband signal.

公开(公告)号：US08369395B2

公开(公告)日：2013-02-05

申请号：US12557393

申请日：2009-09-10

申请人： Myung Don Kim ,  Jae Joon Park ,  Won Sop Kim ,  Young-Hoon Kim ,  Hyun Kyu Chung

发明人： Myung Don Kim ,  Jae Joon Park ,  Won Sop Kim ,  Young-Hoon Kim ,  Hyun Kyu Chung

IPC分类号： H04B3/46 ,  H04B7/10

CPC分类号： H04B17/0085 ,  H04B17/10 ,  H04B17/20 ,  H04B17/26

摘要： A portable apparatus including: a Radio Frequency (RF) unit to control a frequency of a signal to be measured, to broadcast the signal to be measured through multiple transmission antennas, to control a frequency of a received signal, and to send the received signal to the baseband unit, the received signal being received through multiple receiving antennas; and a baseband unit to generate and transmit, to the RF unit, the signal to be measured, to measure wireless channels for each of the multiple transmission antennas and wireless channels for each of the multiple receiving antennas based on the received signal output from the RF unit, to calculate a correlation for each of the multiple transmission antennas, and to calculate a correlation for each of the multiple receiving antennas based on the wireless channels for each of the multiple transmission and receiving antennas.

摘要翻译： 一种便携式设备，包括：射频（RF）单元，用于控制要测量的信号的频率，通过多个发送天线广播待测量的信号，以控制接收信号的频率，并发送接收信号 所述接收信号通过多个接收天线被接收到所述基带单元; 以及基带单元，用于基于从RF输出的接收信号，向RF单元生成并发送要测量的信号，以测量多个发射天线中的每一个以及多个接收天线中的每一个的无线信道的无线信道 计算多个发送天线中的每一个的相关性，并且基于多个发送和接收天线中的每一个的无线信道来计算每个多个接收天线的相关性。