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：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：US08792395B2

公开(公告)日：2014-07-29

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 ,  H04J1/00

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 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.

摘要翻译： 本发明涉及一种用于支持在一定频带内同时支持频分双工（FDD）方法和时分双工（TDD）方法的双模式的无线收发机系统。 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。

公开(公告)号：US20110237210A1

公开(公告)日：2011-09-29

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; 并且当发送信号的输出要求功率等于或大于第二阈值时，以第二放大级别放大放大单元。

公开(公告)号：US08140020B2

公开(公告)日：2012-03-20

申请号：US12443689

申请日：2007-09-21

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

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

IPC分类号： H04B17/00

CPC分类号： H04B7/06 ,  H04B17/21

摘要： There is provided to an RF calibration apparatus and method for a multi-antenna mobile communication system, which calibrates a phase error and gain error of an RF path by calculating the minimum value of a sum of an initialized reference signal and a comparison signal by a simple operation and controlling the phase value of a phase converter and the gain of a variable amplifier on the RF path, in calibrating the RF path of a multi-antenna mobile communication system of a TDD (Time Division Duplexing) type or FDD (Frequency Division Duplexing) type.

摘要翻译： 提供给用于多天线移动通信系统的RF校准装置和方法，其通过计算初始化的参考信号和比较信号的和的最小值来校准RF路径的相位误差和增益误差 简单的操作和控制相位转换器的相位值和RF路径上的可变放大器的增益，以校准TDD（时分双工）类型或FDD（频分方式）的多天线移动通信系统的RF路径 双工）类型。

公开(公告)号：US20100056083A1

公开(公告)日：2010-03-04

申请号：US12443689

申请日：2007-09-21

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

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

IPC分类号： H04B17/00

CPC分类号： H04B7/06 ,  H04B17/21

摘要： There is provided to an RF calibration apparatus and method for a multi-antenna mobile communication system, which calibrates a phase error and gain error of an RF path by calculating the minimum value of a sum of an initialized reference signal and a comparison signal by a simple operation and controlling the phase value of a phase converter and the gain of a variable amplifier on the RF path, in calibrating the RF path of a multi-antenna mobile communication system of a TDD (Time Division Duplexing) type or FDD (Frequency Division Duplexing) type.

摘要翻译： 提供给用于多天线移动通信系统的RF校准装置和方法，其通过计算初始化的参考信号和比较信号的和的最小值来校准RF路径的相位误差和增益误差 简单的操作和控制相位转换器的相位值和RF路径上的可变放大器的增益，以校准TDD（时分双工）类型或FDD（频分方式）的多天线移动通信系统的RF路径 双工）类型。

公开(公告)号：US07349674B2

公开(公告)日：2008-03-25

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： H04B1/46

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：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：US20080136729A1

公开(公告)日：2008-06-12

申请号：US11929863

申请日：2007-10-30

申请人： Byung-Su KANG ,  Jae-Ho Jung ,  Seong-Min Kim ,  Kwang-Chun Lee

发明人： Byung-Su KANG ,  Jae-Ho Jung ,  Seong-Min Kim ,  Kwang-Chun Lee

IPC分类号： H01Q1/50

CPC分类号： H04B1/18

摘要： The present invention relates to an antenna matching device that varies a frequency bandwidth according to mobile communication services, and to a transceiver having the same. To this end, an exemplary embodiment of the present invention provides a transceiver that varies a frequency band and a bandwidth according to required services in a mobile communication system, the transceiver including an antenna matching controller that generates a prescribed switch control signal according to a service requested by a user, an antenna variable matching unit that variably forms a matching circuit according to the switch control signal to be transmitted from the antenna matching controller and varies the frequency band and the bandwidth, an analog processing unit that processes a signal to be transmitted/received through the antenna variable matching unit, and a wideband antenna that transmits/receives a radio frequency according to the frequency band and the bandwidth set by the antenna variable matching unit. Another exemplary embodiment of the present invention provides an antenna matching device including a resistor that reduces a frequency bandwidth, an inductor that reduces a frequency passing band, a capacitor and a resistor that increase the frequency passing band, and switches that control the operations of the inductor and the capacitor. According to the present invention, unnecessary radiation power of a variable matching unit can be minimized, and maximum transmission power required according to services can be reduced. In addition, system construction costs can be reduced, and a user capacity can be increased.

摘要翻译： 本发明涉及根据移动通信业务改变频率带宽的天线匹配装置以及具有该天线匹配装置的收发信机。 为此，本发明的示例性实施例提供了一种根据移动通信系统中的所需服务来改变频带和带宽的收发器，该收发器包括：天线匹配控制器，其根据服务产生规定的开关控制信号 用户请求的天线可变匹配单元，根据要从天线匹配控制器发送的切换控制信号可变地形成匹配电路并改变频带和带宽;模拟处理单元，处理要传输的信号 通过天线可变匹配单元接收的宽带天线，以及根据由天线可变匹配单元设定的频带和带宽发射/接收射频的宽带天线。 本发明的另一个示例性实施例提供了一种天线匹配装置，其包括降低频率带宽的电阻器，减小频率通过的电感器，增加频率通过频带的电容器和电阻器，以及控制 电感和电容。 根据本发明，可以使可变匹配单元的不必要的辐射功率最小化，并且可以减少根据服务所需的最大发射功率。 此外，可以降低系统构造成本，能够提高用户容量。

公开(公告)号：US07817566B2

公开(公告)日：2010-10-19

申请号：US11951587

申请日：2007-12-06

申请人： Sung-Jun Lee ,  Jae-Ho Jung ,  Hyeong-Geun Park ,  Seong-Min Kim ,  Kwang-Chun Lee

发明人： Sung-Jun Lee ,  Jae-Ho Jung ,  Hyeong-Geun Park ,  Seong-Min Kim ,  Kwang-Chun Lee

IPC分类号： G01R31/08

CPC分类号： H04L43/50 ,  H04L41/145 ,  H04W24/08

摘要： Provided is a wired Multiple-Input Multiple-Output (MIMO) link tester. The wired link tester, includes: a simulating unit for constructing a wired link corresponding to a wireless link for a multiple-input multiple-output system and simulating wireless-link characteristics using each variable element located on the wired link; and a control means for prestoring a predetermined value of the variable element depending on the state change time and the number of the state changes and controlling the variable element according to the predetermined value of the variable element.

摘要翻译： 提供了一种有线多输入多输出（MIMO）链路测试仪。 有线链路测试器包括：模拟单元，用于构建对应于多输入多输出系统的无线链路的有线链路，并使用位于有线链路上的每个可变元件来模拟无线链路特性; 以及控制装置，用于根据状态改变时间和状态数量改变预定可变元件的预定值，并根据可变元件的预定值来控制可变元件。