公开(公告)号：US20100136939A1

公开(公告)日：2010-06-03

申请号：US12507474

申请日：2009-07-22

申请人： Seong-Min Kim ,  Byung-Su Kang ,  Gweon-Do Jo ,  Jae-Ho Jung ,  Joon-Hyung Kim ,  Heon-Kook Kwon ,  Sung-Jun Lee ,  Kwang-Chun Lee

发明人： Seong-Min Kim ,  Byung-Su Kang ,  Gweon-Do Jo ,  Jae-Ho Jung ,  Joon-Hyung Kim ,  Heon-Kook Kwon ,  Sung-Jun Lee ,  Kwang-Chun Lee

IPC分类号： H04B7/00

CPC分类号： H04L27/2647 ,  H03G3/3068

摘要： A gain control apparatus in a receiver of multiband OFDM system includes: an amplifier amplifying a received signal based on a first auto gain control signal; an analog-to-digital converter for converting the amplified signal into a digital signal; band reception signal extractor for extracting a signal of a desired reception band from the converted digital signal for each reception band, and controlling gain of the extracted signal according to a second auto gain control signal; a reception power detector for detecting a reception power value of whole band from the converted digital signal; and a multiband integration baseband processor for generating the first auto gain control signal by using the detected reception power value of the whole band, and generating the second auto gain control signal to be provided to the band reception signal extraction units, resource allocation information for each band and a reception power for each reception band.

摘要翻译： 多频带OFDM系统的接收机中的增益控制装置包括：基于第一自动增益控制信号放大接收信号的放大器; 用于将放大的信号转换成数字信号的模拟 - 数字转换器; 频带接收信号提取器，用于从每个接收频带的转换的数字信号中提取期望的接收频带的信号，并根据第二自动增益控制信号控制所提取的信号的增益; 接收功率检测器，用于从转换的数字信号中检测整个频带的接收功率值; 以及多频带集成基带处理器，用于通过使用检测到的整个频带的接收功率值来产生第一自动增益控制信号，并且生成要提供给频带接收信号提取单元的第二自动增益控制信号，每个 频带和每个接收频带的接收功率。

公开(公告)号：US08681898B2

公开(公告)日：2014-03-25

申请号：US13449231

申请日：2012-04-17

申请人： Joon-Hyung Kim ,  Sung-Jun Lee ,  Jae-Ho Jung

发明人： Joon-Hyung Kim ,  Sung-Jun Lee ,  Jae-Ho Jung

IPC分类号： H03C3/00

CPC分类号： H04L27/2614 ,  H03F1/025

摘要： A signal amplifying apparatus, a wireless transmitting apparatus, and a signal amplifying method are provided. The signal amplifying apparatus modulates an envelope signal using a multi-bit quantizer, thereby increasing coding efficiency and tracking optimal supply voltage with respect to envelope variation due to the use of the multi-bit quantizer.

摘要翻译： 提供信号放大装置，无线发送装置和信号放大方法。 信号放大装置使用多位量化器对包络信号进行调制，由于使用多位量化器，相对于包络变化，提高了编码效率并跟踪最佳供电电压。

公开(公告)号：US08213891B2

公开(公告)日：2012-07-03

申请号：US12507474

申请日：2009-07-22

申请人： Seong-Min Kim ,  Byung-Su Kang ,  Gweon-Do Jo ,  Jae-Ho Jung ,  Joon-Hyung Kim ,  Heon-Kook Kwon ,  Sung-Jun Lee ,  Kwang-Chun Lee

发明人： Seong-Min Kim ,  Byung-Su Kang ,  Gweon-Do Jo ,  Jae-Ho Jung ,  Joon-Hyung Kim ,  Heon-Kook Kwon ,  Sung-Jun Lee ,  Kwang-Chun Lee

IPC分类号： H04B1/06 ,  H04B7/00

CPC分类号： H04L27/2647 ,  H03G3/3068

摘要： A gain control apparatus in a receiver of multiband OFDM system includes: an amplifier amplifying a received signal based on a first auto gain control signal; an analog-to-digital converter for converting the amplified signal into a digital signal; band reception signal extractor for extracting a signal of a desired reception band from the converted digital signal for each reception band, and controlling gain of the extracted signal according to a second auto gain control signal; a reception power detector for detecting a reception power value of whole band from the converted digital signal; and a multiband integration baseband processor for generating the first auto gain control signal by using the detected reception power value of the whole band, and generating the second auto gain control signal to be provided to the band reception signal extraction units, resource allocation information for each band and a reception power for each reception band.

摘要翻译： 多频带OFDM系统的接收机中的增益控制装置包括：基于第一自动增益控制信号放大接收信号的放大器; 用于将放大的信号转换成数字信号的模拟 - 数字转换器; 频带接收信号提取器，用于从每个接收频带的转换的数字信号中提取期望的接收频带的信号，并根据第二自动增益控制信号控制所提取的信号的增益; 接收功率检测器，用于从转换的数字信号中检测整个频带的接收功率值; 以及多频带集成基带处理器，用于通过使用检测到的整个频带的接收功率值来产生第一自动增益控制信号，并且生成要提供给频带接收信号提取单元的第二自动增益控制信号，每个 频带和每个接收频带的接收功率。

公开(公告)号：US07929639B2

公开(公告)日：2011-04-19

申请号：US11527787

申请日：2006-09-27

申请人： Jae-Ho Jung ,  Byung-Su Kang ,  Joon-Hyung Kim ,  Heon-Kook Kwon ,  Sung-Jun Lee ,  Kwang-Chun Lee

发明人： Jae-Ho Jung ,  Byung-Su Kang ,  Joon-Hyung Kim ,  Heon-Kook Kwon ,  Sung-Jun Lee ,  Kwang-Chun Lee

IPC分类号： H04L25/49

CPC分类号： H04L27/2628 ,  H04L2027/003

摘要： The present invention relates to a device for compensating a radio frequency distortion caused by a sample/hold operation of a digital/analog converter in an orthogonal frequency division multiplexing (OFDM) transmission system, and a method thereof. In a digital transmission system, an edge frequency signal of a transmission signal band is distorted by a sample/hold operation of a digital/analog converter such that a signal attenuation is generated at a frequency domain by a sync function having a zero point at a sample frequency of a transmission signal. In the present invention, the signal distortion may be compensated by multiplying a coefficient of an inverse sync function by a signal weight value at the frequency domain, and it may be compensated by using a single multiplier and a lookup table storing the coefficient of the inverse sync function.

摘要翻译： 本发明涉及一种用于补偿由正交频分复用（OFDM）传输系统中的数/模转换器的采样/保持操作引起的射频失真的装置及其方法。 在数字传输系统中，传输信号频带的边缘频率信号被数/模转换器的采样/保持操作失真，使得在频域上通过具有零点的同步功能产生信号衰减 发送信号的采样频率。 在本发明中，可以通过将反相位函数的系数乘以频域的信号权重值来补偿信号失真，并且可以通过使用单个乘法器和存储反相的系数的查找表来补偿信号失真 同步功能

公开(公告)号：US20070133698A1

公开(公告)日：2007-06-14

申请号：US11527787

申请日：2006-09-27

申请人： Jae-Ho Jung ,  Byung-Su Kang ,  Joon-Hyung Kim ,  Heon-Kook Kwon ,  Sung-Jun Lee ,  Kwang-Chun Lee

发明人： Jae-Ho Jung ,  Byung-Su Kang ,  Joon-Hyung Kim ,  Heon-Kook Kwon ,  Sung-Jun Lee ,  Kwang-Chun Lee

IPC分类号： H04K1/10

CPC分类号： H04L27/2628 ,  H04L2027/003

摘要： The present invention relates to a device for compensating a radio frequency distortion caused by a sample/hold operation of a digital/analog converter in an orthogonal frequency division multiplexing (OFDM) transmission system, and a method thereof. In a digital transmission system, an edge frequency signal of a transmission signal band is distorted by a sample/hold operation of a digital/analog converter such that a signal attenuation is generated at a frequency domain by a sync function having a zero point at a sample frequency of a transmission signal. In the present invention, the signal distortion may be compensated by multiplying a coefficient of an inverse sync function by a signal weight value at the frequency domain, and it may be compensated by using a single multiplier and a lookup table storing the coefficient of the inverse sync function.

摘要翻译： 本发明涉及一种用于补偿由正交频分复用（OFDM）传输系统中的数/模转换器的采样/保持操作引起的射频失真的装置及其方法。 在数字传输系统中，传输信号频带的边缘频率信号被数/模转换器的采样/保持操作失真，使得在频域上通过具有零点的同步功能产生信号衰减 发送信号的采样频率。 在本发明中，可以通过将反相位函数的系数乘以频域的信号权重值来补偿信号失真，并且可以通过使用单个乘法器和存储反相的系数的查找表来补偿信号失真 同步功能

公开(公告)号：US08433268B2

公开(公告)日：2013-04-30

申请号：US13132537

申请日：2009-10-29

申请人： Jae-Ho Jung ,  Joon-Hyung Kim ,  Kwang-Chun Lee

发明人： Jae-Ho Jung ,  Joon-Hyung Kim ,  Kwang-Chun Lee

IPC分类号： H04B1/04

CPC分类号： H03G3/30 ,  H03F3/211 ,  H03F3/2176 ,  H03F3/24 ,  H04L27/361

摘要： Disclosed is an apparatus for transmitting complex signals in a wireless communication system. The present invention, there is provided a method for controlling gain according to a magnitude change of output signals in a polar transmitter including an amplification unit having two or more amplification degrees, the method includes processes to control an output level of a modulated signal when a output-required power of transmission signals are less than a predetermined threshold value, and to perform a basic amplification through the amplification unit; to amplify the amplification unit at a first amplification level when the output-required power of the transmission signals is equal to or greater than a predetermined first threshold value and is less than a predetermined second threshold value; and to amplify the amplification unit at a second amplification level when the output-required power of the transmission signal is equal to or greater than the second threshold value.

摘要翻译： 公开了一种用于在无线通信系统中发送复杂信号的装置。 本发明提供了一种用于根据包括具有两个或更多个放大度的放大单元的极性发射器中的输出信号的幅度变化来控制增益的方法，所述方法包括当调制信号的输出电平 输出要求的发送信号功率小于预定阈值，并通过放大单元执行基本放大; 当发送信号的输出要求功率等于或大于预定的第一阈值且小于预定的第二阈值时，以第一放大级放大放大单元; 并且当传输信号的输出所需功率等于或大于第二阈值时，以第二放大级放大放大单元。

公开(公告)号：US08391406B2

公开(公告)日：2013-03-05

申请号：US12620739

申请日：2009-11-18

申请人： Joon-Hyung Kim ,  Kwang-Chun Lee ,  Gweon-Do Jo ,  Jae-Ho Jung

发明人： Joon-Hyung Kim ,  Kwang-Chun Lee ,  Gweon-Do Jo ,  Jae-Ho Jung

IPC分类号： H04L25/49

CPC分类号： H04L27/361

摘要： Provided are a signal amplifying apparatus and method and a wireless transmitter using the same. The signal amplifier includes a polar coordinate converter configured to output an envelope signal and a phase signal by converting a signal to a polar coordinate, a multilevel quantizer configured to output a multilevel quantized signal by quantizing the envelope signal to multiple levels, an amplification state controller configured to control an amplification state using the multilevel quantized signal, and a power amplifier configured to amplify the phase signal according to the controlled amplification state.

摘要翻译： 提供了一种信号放大装置和方法以及使用该放大装置的无线发射机。 信号放大器包括：极坐标转换器，被配置为通过将信号转换为极坐标来输出包络信号和相位信号;多电平量化器，被配置为通过将包络信号量化为多个电平来输出多电平量化信号;放大状态控制器 被配置为使用所述多电平量化信号来控制放大状态，以及功率放大器，被配置为根据所述受控放大状态来放大所述相位信号。

公开(公告)号：US20100118744A1

公开(公告)日：2010-05-13

申请号：US12447104

申请日：2007-05-03

申请人： Heon-Kook Kwon ,  Joon-Hyung Kim ,  Seong-Min Kim ,  Yun-Soo Ko ,  Jae-Ho Jung ,  Kwang-Chun Lee

发明人： Heon-Kook Kwon ,  Joon-Hyung Kim ,  Seong-Min Kim ,  Yun-Soo Ko ,  Jae-Ho Jung ,  Kwang-Chun Lee

IPC分类号： H04B7/005 ,  H04B7/00 ,  H04J3/00

CPC分类号： H04B1/406 ,  H04B1/52 ,  H04B1/54

摘要： The present invention relates to a wireless transceiver system for supporting a dual mode, and more particularly to a wireless transceiver system for supporting a dual mode that simultaneously supports the Frequency Division Duplex (FDD) method and the Time Division Duplex (TDD) method in a certain frequency band. The present system supports the FDD system conducting transmission and reception simultaneously by using different frequency bands for transmission and reception as well as the TDD system temporally alternating transmission and reception by using the common frequency band among an upper frequency band and a lower frequency band used in the FDD system as well as another frequency band adjacent thereto, thereby selectively supporting both of the two communication systems in a wireless transceiver system. Therefore, efficient use of various wireless communication standards and the limited frequency resource is provided, and on this basis, an efficient application of all wireless transceiver systems adopting the TDD system and the FDD system as well as the mobile communication base station and the terminal is provided.

摘要翻译： 本发明涉及一种用于支持双模式的无线收发器系统，更具体地涉及一种用于支持同时支持频分双工（FDD）方法和时分双工（TDD）方法的双模式的无线收发器系统， 某些频段。 本系统支持FDD系统，通过使用不同的频带进行发送和接收，并且通过使用在上述频带中使用的较高频带和较低频带中的公共频带来进行时间上交替的发送和接收，同时进行发送和接收 FDD系统以及与其相邻的另一频带，从而在无线收发器系统中选择性地支持两个通信系统。 因此，提供了各种无线通信标准和有限频率资源的有效利用，并且在此基础上，采用TDD系统和FDD系统以及移动通信基站和终端的所有无线收发机系统的有效应用是 提供。

公开(公告)号：US20060040620A1

公开(公告)日：2006-02-23

申请号：US11026834

申请日：2004-12-30

申请人： Jae-Ho Jung ,  Joon-Hyung Kim ,  Kwang-Chun Lee

发明人： Jae-Ho Jung ,  Joon-Hyung Kim ,  Kwang-Chun Lee

IPC分类号： H04B1/48

CPC分类号： H04B1/525

摘要： A receiver is protected by reducing a transmit leakage signal leaked when a transmit signal is radiated through the antenna by using three circulators (transmitter, antenna, and receiver). The transmitter and antenna circulators output the transmit leakage signal to be reduced to less than the transmit signal through a first leakage path. The transmitter and receiver circulators output the transmit leakage signal through a third leakage path and reduce the signal. The transmit leakage signals received through the first and third leakage paths are canceled, and that received through a second leakage path is output to a receiver. The transmit leakage signal has a 40 dB signal reduction compared to the transmit signal, and is transmitted to the receiver.

摘要翻译： 通过使用三个循环器（发射机，天线和接收机）通过天线辐射发射信号时，通过减少泄露的发射泄漏信号来保护接收机。 发射机和天线循环器通过第一泄漏路径将发射泄漏信号输出减小到小于发射信号。 发射机和接收机循环器通过第三个泄漏路径输出发射泄漏信号，并减少信号。 通过第一和第三泄漏路径接收的发射泄漏信号被消除，并且通过第二泄漏路径接收的发射泄漏信号被输出到接收器。 传输泄漏信号与发射信号相比具有40dB的信号减少，并被发送到接收机。

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。