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1. 发明授权

US08233845B2 Method for measuring variable bandwidth wireless channel and transmitter and receiver therefor 有权
标题翻译：用于测量可变带宽无线信道及其发射机和接收机的方法
公开(公告)号：US08233845B2
公开(公告)日：2012-07-31
申请号：US13344029
申请日：2012-01-05
申请人： Sung-Jun Lee , Heon-Kook Kwon , Myung-Don Kim , Hyun-Kyu Chung , Kwang-Chun Lee
发明人： Sung-Jun Lee , Heon-Kook Kwon , Myung-Don Kim , Hyun-Kyu Chung , Kwang-Chun Lee
IPC分类号： H04B17/00
CPC分类号： H04L1/20
摘要： Provided are a method for measuring a variable bandwidth wireless channel, and a transmitter and a receiver therefor. The transmitter, includes: a pre-processing unit for performing variable over-sampling and band-limited filtering on an original sequence for measuring the wireless channel according to a pre-determined digital-to-analog (D/A) operation speed and measurement bandwidth, and creating and storing a probing sequence whose frequency is up-converted into a fixed transmitting intermediate frequency; and a real-time processing unit for transmitting a probing signal that the stored probing sequence is converted according to the D/A operation speed to the wireless channel.
摘要翻译：提供了一种用于测量可变带宽无线信道的方法，以及用于其的发射机和接收机。发射机包括：预处理单元，用于根据预定的数模（D / A）操作速度和测量对原始序列进行可变过采样和带限滤波，以测量无线信道带宽，以及创建和存储其频率被上变频成固定发射中频的探测序列; 以及实时处理单元，用于将存储的探测序列根据D / A操作速度转换的探测信号发送到无线信道。

2. 发明授权

US08112040B2 Method for measuring variable bandwidth wireless channel and transmitter and receiver therefor 有权
标题翻译：用于测量可变带宽无线信道及其发射机和接收机的方法
公开(公告)号：US08112040B2
公开(公告)日：2012-02-07
申请号：US11951522
申请日：2007-12-06
申请人： Sung-Jun Lee , Heon-Kook Kwon , Myung-Don Kim , Hyun-Kyu Chung , Kwang-Chun Lee
发明人： Sung-Jun Lee , Heon-Kook Kwon , Myung-Don Kim , Hyun-Kyu Chung , Kwang-Chun Lee
IPC分类号： H04B17/00
CPC分类号： H04L1/20
摘要： Provided are a method for measuring a variable bandwidth wireless channel, and a transmitter and a receiver therefore. The transmitter, includes: a pre-processing unit for performing variable over-sampling and band-limited filtering on an original sequence for measuring the wireless channel according to a pre-determined digital-to-analog (D/A) operation speed and measurement bandwidth, and creating and storing a probing sequence whose frequency is up-converted into a fixed transmitting intermediate frequency; and a real-time processing unit for transmitting a probing signal that the stored probing sequence is converted according to the D/A operation speed to the wireless channel.
摘要翻译：因此，提供了一种用于测量可变带宽无线信道的方法，以及发射机和接收机。发射机包括：预处理单元，用于根据预定的数模（D / A）操作速度和测量对原始序列进行可变过采样和带限滤波，以测量无线信道带宽，以及创建和存储其频率被上变频成固定发射中频的探测序列; 以及实时处理单元，用于将存储的探测序列根据D / A操作速度转换的探测信号发送到无线信道。

3. 发明授权

US08731462B2 Apparatus for measuring radio relay channel and method thereof 有权
标题翻译：无线电中继信道测量装置及其方法
公开(公告)号：US08731462B2
公开(公告)日：2014-05-20
申请号：US12962211
申请日：2010-12-07
申请人： Myung-Don Kim , Heon-Kook Kwon , Jae-Joon Park , Byung-Jae Kwak , Hyun-Kyu Chung
发明人： Myung-Don Kim , Heon-Kook Kwon , Jae-Joon Park , Byung-Jae Kwak , Hyun-Kyu Chung
IPC分类号： H04B1/60
CPC分类号： H04B7/155 , H04W56/00 , H04W72/085 , H04W84/047
摘要： An apparatus and method for measuring radio relay channel are provided capable of easily measuring a radio relay channel on each radio link among a base station (BS), a relay station (RS) and a mobile station (MS) and providing a reliable result of measuring the characteristics of radio relay channel by controlling transmission/reception timing based on variation in operation time among the BS, the RS and the MS.
摘要翻译：提供一种用于测量无线电中继信道的装置和方法，其能够容易地测量基站（BS），中继站（RS）和移动台（MS）之间的每个无线链路上的无线中继信道，并提供可靠的结果通过基于BS，RS和MS之间的操作时间的变化控制发送/接收定时来测量无线电中继信道的特性。

4. 发明授权

US07911986B2 Apparatus and method for measuring bi-directional radio channel having multiple antenna 有权
标题翻译：用于测量具有多个天线的双向无线电信道的装置和方法
公开(公告)号：US07911986B2
公开(公告)日：2011-03-22
申请号：US12514831
申请日：2007-10-30
申请人： Heon-Kook Kwon , Kwang-Chun Lee , Hyun-Kyu Chung
发明人： Heon-Kook Kwon , Kwang-Chun Lee , Hyun-Kyu Chung
IPC分类号： H04J3/00 , H04J1/00
CPC分类号： H04B17/309 , H04B7/0691 , H04B7/0874
摘要： An apparatus and method for measuring bi-directional radio channel with multiple antenna are provided. The apparatus includes a transmitter for amplifying a signal that is frequency-up converted to radio frequency and removing a signal of other frequency band, a high power multiplexing switch for sequentially transferring transmitting signals from the transmitter to a corresponding circulator, a plurality of circulators for transferring the transmitting signals from the high power multiplexing switch to a corresponding antenna among multiple antennas, and transferring a receiving signal from a corresponding antenna, a low loss multiplexing switch for receiving the receiving signal from the corresponding circulator, and sequentially transferring the receiving signal; and a receiver for receiving the receiving signal from the low loss multiplexing switch, removing undesired frequency components from the receiving signal except a desired frequency band and low-noise amplifying the desired frequency band of the receiving signal.
摘要翻译：提供了一种用于测量具有多个天线的双向无线电信道的装置和方法。该装置包括用于放大频率转换为射频的信号并去除其他频带的信号的发射机，用于将发射信号从发射机顺序地传送到相应的循环器的高功率复用开关，多个循环器将来自高功率复用交换机的发送信号从多个天线传送到对应的天线，并从相应的天线传送接收信号，低损耗多路复用开关，用于从相应的循环器接收接收信号，并顺序传送接收信号; 以及接收器，用于从低损耗多路复用开关接收接收信号，除去期望频带以外的接收信号中的不需要的频率分量，以及放大接收信号的期望频带的低噪声。

5. 发明申请

US20100046386A1 APPARATUS AND METHOD FOR MEASURING BI-DIRECTIONAL RADIO CHANNEL HAVING MULTIPLE ANTENNA 有权
标题翻译：用于测量具有多个天线的双向无线电通道的装置和方法
公开(公告)号：US20100046386A1
公开(公告)日：2010-02-25
申请号：US12514831
申请日：2007-10-30
申请人： Heon-Kook Kwon , Kwang-Chun Lee , Hyun-Kyu Chung
发明人： Heon-Kook Kwon , Kwang-Chun Lee , Hyun-Kyu Chung
IPC分类号： H04J1/16 , H04J3/00
CPC分类号： H04B17/309 , H04B7/0691 , H04B7/0874
摘要： An apparatus and method for measuring bi-directional radio channel with multiple antenna are provided. The apparatus includes a transmitter for amplifying a signal that is frequency-up converted to radio frequency and removing a signal of other frequency band, a high power multiplexing switch for sequentially transferring transmitting signals from the transmitter to a corresponding circulator, a plurality of circulators for transferring the transmitting signals from the high power multiplexing switch to a corresponding antenna among multiple antennas, and transferring a receiving signal from a corresponding antenna, a low loss multiplexing switch for receiving the receiving signal from the corresponding circulator, and sequentially transferring the receiving signal; and a receiver for receiving the receiving signal from the low loss multiplexing switch, removing undesired frequency components from the receiving signal except a desired frequency band and low-noise amplifying the desired frequency band of the receiving signal.
摘要翻译：提供了一种用于测量具有多个天线的双向无线电信道的装置和方法。该装置包括用于放大频率转换为射频的信号并去除其他频带的信号的发射机，用于将发射信号从发射机顺序地传送到相应的循环器的高功率复用开关，多个循环器将来自高功率复用交换机的发送信号从多个天线传送到对应的天线，并从相应的天线传送接收信号，低损耗多路复用开关，用于从相应的循环器接收接收信号，并顺序传送接收信号; 以及接收器，用于从低损耗多路复用开关接收接收信号，除去期望频带以外的接收信号中的不需要的频率分量，以及放大接收信号的期望频带的低噪声。

6. 发明申请

US20070133698A1 Device for compensating radio frequency distortion in orthogonal frequency division multiplexing transmission system and method thereof 有权
标题翻译：用于补偿正交频分复用传输系统中射频失真的装置及其方法
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

7. 发明申请

US20100136939A1 GAIN CONTROL APPARATUS AND METHOD IN RECEIVER OF MULTIBAND OFDM SYSTEM 失效
标题翻译：多频OFDM系统接收机的增益控制装置及方法
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。

8. 发明授权

US08213891B2 Gain control apparatus and method in receiver of multiband OFDM system 失效
标题翻译：多频OFDM系统接收机增益控制装置及方法
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。

9. 发明授权

US07929639B2 Device for compensating radio frequency distortion in orthogonal frequency division multiplexing transmission system and method thereof 有权
标题翻译：用于补偿正交频分复用传输系统中射频失真的装置及其方法
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

10. 发明授权

US08521081B2 Repeating apparatus and method in wireless communication system 有权
标题翻译：无线通信系统中的重复设备和方法
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。

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