公开(公告)号：US09136612B2

公开(公告)日：2015-09-15

申请号：US13619960

申请日：2012-09-14

申请人： Heon Kook Kwon ,  Byung Su Kang ,  Jae Ho Jung

发明人： Heon Kook Kwon ,  Byung Su Kang ,  Jae Ho Jung

IPC分类号： H01Q21/28

CPC分类号： H01Q21/28

摘要： Disclosed is a front-end apparatus of an RF transceiver connected with an antenna in a wireless communication system. The front-end apparatus of an RF transceiver using radio-frequency passive elements includes: a plurality of band pass filters configured a transmission signal and a reception signal; a first circulator configured to output a first transmission signal to a second terminal and output a second reception signal input; a second circulator configured to output a second transmission signal input into the first terminal to the second terminal and output a first reception signal input into the second terminal to the third terminal; a passive directional double pole and double throw switch configured to process a route to be changed depending on directions of an input and an output; a first antenna configured to transmit the first transmission signal; and a second antenna configured to transmit the second transmission.

摘要翻译： 公开了一种在无线通信系统中与天线连接的RF收发器的前端装置。 使用射频无源元件的RF收发器的前端装置包括：配置有发送信号和接收信号的多个带通滤波器; 第一循环器，被配置为将第一发送信号输出到第二终端，并输出第二接收信号输入; 第二循环器，被配置为将输入到所述第一端子的第二传输信号输出到所述第二端子，并将输入到所述第二端子的第一接收信号输出到所述第三端子; 被动方向双极双掷开关，被配置为根据输入和输出的方向处理要改变的路线; 第一天线，被配置为发送所述第一发送信号; 以及被配置为发送所述第二传输的第二天线。

公开(公告)号：US20060132375A1

公开(公告)日：2006-06-22

申请号：US11211229

申请日：2005-08-24

申请人： Yang-Su Kim ,  Byung-Su Kang ,  Bon-Jun Ku ,  Do-Seob Ahn

发明人： Yang-Su Kim ,  Byung-Su Kang ,  Bon-Jun Ku ,  Do-Seob Ahn

IPC分类号： H01Q13/00

CPC分类号： H01Q21/24 ,  H01Q21/065

摘要： Provided is a device for shaping a flat-topped element pattern using a circular polarization microstrip patch. The device includes: a microstrip patch feeding unit for generating circularly polarized signals of a basic mode; a circular waveguide for guiding the circular polarized signals and generating signals of high-order modes; and a pattern shaping unit for shaping FTEP through an electromagnetic mutual coupling between the signals of the high-order modes generated from the pattern shaping unit.

摘要翻译： 提供了一种使用圆偏振微带贴片来形成平顶元件图案的装置。 该装置包括：微带贴片馈送单元，用于产生基本模式的圆偏振信号; 用于引导圆偏振信号并产生高阶模的信号的圆形波导; 以及图案整形单元，用于通过从图案整形单元产生的高阶模的信号之间的电磁互耦来对FTEP进行成形。

公开(公告)号：US08693572B2

公开(公告)日：2014-04-08

申请号：US13545691

申请日：2012-07-10

申请人： Gweon Do Jo ,  Chang Wahn Yu ,  Heon Kook Kwon ,  Byung Su Kang ,  Kwang Chun Lee

发明人： Gweon Do Jo ,  Chang Wahn Yu ,  Heon Kook Kwon ,  Byung Su Kang ,  Kwang Chun Lee

IPC分类号： H04L27/12

CPC分类号： H03M7/6023 ,  H04L27/26

摘要： The method for transmitting a signal of an orthogonal frequency division multiplexing type according to an exemplary embodiment of the present invention has a configuration allowing a radio unit (RU) to perform a component adding a compression component and a decompression component before/after a serial interface interlocking between a digital unit (DU) and the radio unit (RU) and a component inserting a cyclic prefix (CP) into a signal so as to secure orthogonality of an orthogonal frequency division multiplexing (OFDM) signal, in a structure in which a base station is physically divided into the DU and the RU.

摘要翻译： 根据本发明的示例性实施例的用于发送正交频分复用类型的信号的方法具有允许无线电单元（RU）在串行接口之前/之后执行添加压缩分量和解压缩分量的分量的配置 在数字单元（DU）和无线电单元（RU）之间互锁，以及将一个循环前缀（CP）插入到信号中以便确保正交频分复用（OFDM）信号的正交性的组件，其中 基站在物理上分为DU和RU。

公开(公告)号：US07671692B2

公开(公告)日：2010-03-02

申请号：US12170715

申请日：2008-07-10

申请人： Heon Kook Kwon ,  Joon Hyung Kim ,  Byung Su Kang ,  Kwang Chun Lee

发明人： Heon Kook Kwon ,  Joon Hyung Kim ,  Byung Su Kang ,  Kwang Chun Lee

IPC分类号： H03C3/00 ,  H04L27/20

CPC分类号： H04L27/364 ,  H03C3/406

摘要： The present invention relates to an apparatus and a method for compensating carrier feedthrough in a quadrature modulation system. In order to suppress the carrier feedthrough, and minimize and compensate the carrier feedthrough, differences of baseband differential input DC voltages in an in-phase as well as a quadrature-phase are simultaneously adjusted to 0 or a certain slight voltage difference by a simple analog circuit. Therefore, it is possible to suppress carrier feedthrough using a simple analog type apparatus for compensating carrier feedthrough, and simply achieve an apparatus for carrier feedthrough using a variety of quadrature modulators.

摘要翻译： 本发明涉及在正交调制系统中补偿载波馈通的装置和方法。 为了抑制载波馈通，并且使载波馈通最小化和补偿，同相和正交相中的基带差分输入直流电压的差异通过简单的模拟同时被调整到0或一定的微小电压差 电路。 因此，可以使用用于补偿载波馈通的简单模拟型装置来抑制载波馈通，并且简单地实现使用各种正交调制器的载波馈通装置。

公开(公告)号：US20080137561A1

公开(公告)日：2008-06-12

申请号：US11951480

申请日：2007-12-06

申请人： Seong-Min KIM ,  Byung-Su KANG ,  Yun-soo KO ,  Heon-Kook KWON ,  Kwang-Chun LEE

发明人： Seong-Min KIM ,  Byung-Su KANG ,  Yun-soo KO ,  Heon-Kook KWON ,  Kwang-Chun LEE

IPC分类号： H04B7/14

CPC分类号： H04B7/15535

摘要： The present invention relates to an RF repeater used in a time division method, and a method thereof. An RF repeater according to an exemplary embodiment of the present invention receives a downlink signal that is to be transmitted from a base station to a mobile terminal, performs first automatic gain control on the downlink signal, and extracts gain information from the downlink signal on which the first automatic gain control has been performed, on the basis of gain variation information that is the gain information for the downlink signal. Then, the RF repeater performs second automatic gain control on the downlink signal on the basis of the extracted gain information, and performs a control operation such that the downlink signal on which the second automatic gain control has been performed is transmitted to the mobile terminal. According to the exemplary embodiment of the present invention, the RF repeater maintains the received uplink signal at the predetermined level or more by using a pilot signal of a subcarrier that is not allocated during the downlink period, regardless of the number of mobile terminals that are connected to the RF repeater. As a result, the RF repeater can efficiently perform automatic gain control on the uplink signal without performing separate signal analysis or control.

摘要翻译： 本发明涉及用于时分方法的RF中继器及其方法。 根据本发明的示例性实施例的RF中继器接收将从基站发送到移动终端的下行链路信号，对下行链路信号执行第一自动增益控制，并从下行链路信号中提取增益信息， 已经基于作为下行链路信号的增益信息的增益变化信息来执行第一自动增益控制。 然后，RF中继器基于所提取的增益信息对下行链路信号进行第二自动增益控制，并且执行控制操作，使得已经执行了第二自动增益控制的下行链路信号被发送到移动终端。 根据本发明的示例性实施例，RF中继器通过使用在下行链路周期期间未分配的子载波的导频信号将接收到的上行链路信号保持在预定电平或更高级，而不管移动终端的数量如何 连接到RF中继器。 结果，RF中继器可以有效地对上行链路信号执行自动增益控制，而不进行单独的信号分析或控制。

公开(公告)号：US20060114149A1

公开(公告)日：2006-06-01

申请号：US11215326

申请日：2005-08-30

申请人： Byung-Su Kang ,  Yang-Su Kim ,  Bon-Jun Ku ,  Do-Seob Ahn

发明人： Byung-Su Kang ,  Yang-Su Kim ,  Bon-Jun Ku ,  Do-Seob Ahn

IPC分类号： H04B7/185 ,  H01Q3/00

CPC分类号： H04B7/18504 ,  H01Q1/28 ,  H01Q3/26 ,  Y02D70/164 ,  Y02D70/446

摘要： Provided is an antenna control apparatus for controlling an antenna mounted on a stratospheric platform of the stratospheric communication system. The apparatus includes a plurality of location signal receivers, each receiver being positioned at each of predefined different points of the stratospheric platform and receiving a location signal for the stratospheric platform, a calculating circuit for calculating an adjustable displacement for the antenna, and an antenna driver for adjusting a direction of the antenna. The calculating circuit calculates a location and attitude of the stratospheric platform based on the location signals, and then computes the adjustable displacement using the location and attitude information. This invention can reduce power consumption in the stratospheric platform and recovery time of directional point of the beam.

摘要翻译： 提供一种用于控制安装在同温层通信系统的同温层平台上的天线的天线控制装置。 该装置包括多个位置信号接收器，每个接收器位于平流层平台的预定义的不同点的每一个处，并且接收同温层平台的位置信号，计算电路，用于计算天线的可调位移;以及天线驱动器 用于调整天线的方向。 计算电路基于位置信号计算平流层平台的位置和姿态，然后使用位置和姿态信息计算可调位移。 本发明可以降低平流层平台的功率消耗和光束方向点的恢复时间。

公开(公告)号：US08521081B2

公开(公告)日：2013-08-27

申请号：US12886104

申请日：2010-09-20

申请人： Byung-Su Kang ,  Heon-Kook Kwon ,  Kwang-Chun Lee

发明人： Byung-Su Kang ,  Heon-Kook Kwon ,  Kwang-Chun Lee

IPC分类号： H04B7/15 ,  H04B7/185 ,  H04B7/19

CPC分类号： H04B7/15535

摘要： A repeating apparatus in a wireless communication system includes: a signal detection unit configured to receive a signal from a base station or a mobile station and detect strength of the signal; a control unit configured to compare the signal strength detected by the signal detection unit with signal strength predetermined by the system and provide comparison information; and an output signal control unit configured to receive the comparison information from the control unit and adjust and amplify gain of a signal transmitted to the base station or the mobile station.

摘要翻译： 无线通信系统中的中继装置包括：信号检测单元，被配置为从基站或移动站接收信号，并检测信号的强度; 控制单元，被配置为将由信号检测单元检测的信号强度与由系统预定的信号强度进行比较并提供比较信息; 以及输出信号控制单元，被配置为从所述控制单元接收所述比较信息，并且调整和放大发送到所述基站或所述移动站的信号的增益。

公开(公告)号：US20110151775A1

公开(公告)日：2011-06-23

申请号：US12886104

申请日：2010-09-20

申请人： Byung-Su KANG ,  Heon-Kook KWON ,  Kwang-Chun LEE

发明人： Byung-Su KANG ,  Heon-Kook KWON ,  Kwang-Chun LEE

IPC分类号： H04B1/60

CPC分类号： H04B7/15535

摘要： A repeating apparatus in a wireless communication system includes: a signal detection unit configured to receive a signal from a base station or a mobile station and detect strength of the signal; a control unit configured to compare the signal strength detected by the signal detection unit with signal strength predetermined by the system and provide comparison information; and an output signal control unit configured to receive the comparison information from the control unit and adjust and amplify gain of a signal transmitted to the base station or the mobile station.

摘要翻译： 无线通信系统中的中继装置包括：信号检测单元，被配置为从基站或移动站接收信号，并检测信号的强度; 控制单元，被配置为将由信号检测单元检测的信号强度与由系统预定的信号强度进行比较并提供比较信息; 以及输出信号控制单元，被配置为从所述控制单元接收所述比较信息，并且调整和放大发送到所述基站或所述移动站的信号的增益。

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：US20090140813A1

公开(公告)日：2009-06-04

申请号：US12234115

申请日：2008-09-19

申请人： Byung Su KANG ,  Heon Kook KWON ,  Kwang Chun LEE

发明人： Byung Su KANG ,  Heon Kook KWON ,  Kwang Chun LEE

IPC分类号： H03G3/20

CPC分类号： H03G3/3068

摘要： A radio signal receiving apparatus receiving a radio signal over a radio channel generates a first amplified signal by amplifying the radio signal with a first gain, and determines the first gain by measuring the strength of the first amplified signal. In addition, the radio signal receiving apparatus generates a down-converted signal by frequency down-converting the first amplified signal, and generates a second amplified signal by amplifying the down-converted signal with a second gain. In addition, the radio signal receiving apparatus determines the second gain by measuring the strength of the second amplified signal.

摘要翻译： 通过无线电信道接收无线电信号的无线电信号接收装置通过以第一增益放大无线电信号来产生第一放大信号，并且通过测量第一放大信号的强度来确定第一增益。 此外，无线电信号接收装置通过对第一放大信号进行降频转换而产生下变频信号，并通过用第二增益放大下变频信号来产生第二放大信号。 此外，无线电信号接收装置通过测量第二放大信号的强度来确定第二增益。