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：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：US07840200B2

公开(公告)日：2010-11-23

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： H04B1/18

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：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：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。

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：US20110312370A1

公开(公告)日：2011-12-22

申请号：US13254772

申请日：2010-03-02

申请人： Tae-Joong Kim ,  Kwang-Chun Lee ,  Jae-Heung Kim ,  Hyun-Kyu Chung

发明人： Tae-Joong Kim ,  Kwang-Chun Lee ,  Jae-Heung Kim ,  Hyun-Kyu Chung

IPC分类号： H04W36/00

CPC分类号： H04W52/0206 ,  H04W84/045 ,  Y02D70/1244 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/24 ,  Y02D70/25

摘要： An operation control method in a base station of a wireless communication system includes: checking whether or not an allowed mobile station exists in coverage of the base station and overall coverage of base stations adjacent to the base station; and controlling the base station to perform transmission/reception at a predetermined period through a first discontinuous operation, when the allowed mobile station does not exist in the coverage of the base station and the overall coverage of the adjacent base stations.

摘要翻译： 无线通信系统的基站中的操作控制方法包括：检查所允许的移动台是否存在于所述基站的覆盖范围内以及与所述基站相邻的基站的全面覆盖; 并且当允许的移动台不存在于基站的覆盖范围内并且相邻基站的总体覆盖范围时，通过第一不连续操作来控制基站在预定周期进行发送/接收。

公开(公告)号：US07974180B2

公开(公告)日：2011-07-05

申请号：US12096450

申请日：2006-12-05

申请人： Hyun-Kyu Chung ,  Kwang-Chun Lee

发明人： Hyun-Kyu Chung ,  Kwang-Chun Lee

IPC分类号： H04J11/00

CPC分类号： H04L25/022 ,  H04L25/025

摘要： The present invention relates to transmitting/receiving apparatuses of a wideband radio channel measuring device using a multi-carrier. The wideband radio channel measuring device using the multi-carrier may measure radio channel characteristics at a frequency domain. Since the radio channel is measured at the frequency domain by the wideband radio channel measuring device using the multi-carrier, the channel characteristics may be simultaneously measured while maintaining a maximum Doppler measurement frequency at a predetermined level regardless of increase of the number of transmitting and receiving antennas, in an MIMO configuration.

摘要翻译： 本发明涉及使用多载波的宽带无线电信道测量装置的发射/接收装置。 使用多载波的宽带无线电信道测量装置可以测量频域的无线电信道特性。 由于通过使用多载波的宽带无线电信道测量装置在频域处测量无线电信道，所以可以同时测量信道特性，同时将最大多普勒测量频率保持在预定电平，而不管发射和发射次数的增加， 接收天线。

公开(公告)号：US07518563B2

公开(公告)日：2009-04-14

申请号：US11735169

申请日：2007-04-13

申请人： Sung-Jun Lee ,  Kwang-Chun Lee ,  Chi-Hyung Ahn ,  Doo-Soo Kim ,  Wee-Sang Park

发明人： Sung-Jun Lee ,  Kwang-Chun Lee ,  Chi-Hyung Ahn ,  Doo-Soo Kim ,  Wee-Sang Park

IPC分类号： H01Q11/12

CPC分类号： H01Q1/38 ,  H01Q7/00

摘要： There is provided a windmill-shaped loop antenna including: a dielectric substrate; a first radiation unit disposed on a top surface of the dielectric substrate and including a metal pattern having loop pieces; a second radiation unit disposed at a bottom surface of the dielectric substrate and including a metal pattern having loop pieces arranged not to face the loop pieces of the first radiation unit; and a plurality of identical transmission line from a center of the top and bottom surfaces of the dielectric substrate to the first and second radiation units, which form windmill-shaped metal pattern with the first and second radiation unit.

摘要翻译： 提供了一种风车形环形天线，包括：电介质基板; 第一辐射单元，设置在电介质基板的顶表面上并且包括具有环形件的金属图案; 第二辐射单元，设置在所述电介质基板的底表面处，并且包括金属图案，所述金属图案具有被布置成不面对所述第一辐射单元的环形片的环片; 以及从电介质基板的顶表面和底表面的中心到第一和第二辐射单元的多条相同的传输线，其与第一和第二辐射单元形成风车形金属图案。

公开(公告)号：US08477866B2

公开(公告)日：2013-07-02

申请号：US12973231

申请日：2010-12-20

申请人： Sung-Jun Lee ,  Kwang-Chun Lee ,  Hyun-Kyu Chung

发明人： Sung-Jun Lee ,  Kwang-Chun Lee ,  Hyun-Kyu Chung

IPC分类号： H04L1/02 ,  H04B7/02

CPC分类号： H04B1/7113 ,  H04B17/14

摘要： The method includes performing a wired back-to-back test by forming M wired paths connecting one of the N transmission antennas with the M reception antennas through M cables, separating ith digital data corresponding to an ith receiver wired path from the plurality of digital data stored in the receiver wherein i is a natural number greater than 1 and smaller than M, extracting a time delay by decimating the separated ith digital data and performing sliding correlation on the decimated data, and extracting attenuation and phase characteristics of the ith receiver wired path by extracting samples after the time delay among the decimated samples.

摘要翻译： 该方法包括：通过M个电缆形成连接N个发送天线中的一个与M个接收天线的M个有线路径进行有线背靠背测试，该多个数字数据与第i个接收机有线路径相对应的数字数据 存储在接收机中，其中i是大于1且小于M的自然数，通过抽取分离的第i个数字数据并对抽取的数据执行滑动相关提取时间延迟，并且提取第i个接收机有线路径的衰减和相位特性 通过在抽取的样本之间的时间延迟之后提取样本。