公开(公告)号：US20100158088A1

公开(公告)日：2010-06-24

申请号：US12557393

申请日：2009-09-10

申请人： Myung Don Kim ,  Jae Joon Park ,  Won Sop Kim ,  Young-Hoon Kim ,  Hyun Kyu Chung

发明人： Myung Don Kim ,  Jae Joon Park ,  Won Sop Kim ,  Young-Hoon Kim ,  Hyun Kyu Chung

IPC分类号： H04B17/00

CPC分类号： H04B17/0085 ,  H04B17/10 ,  H04B17/20 ,  H04B17/26

摘要： A portable apparatus of measuring a wireless channel and a multiple antenna correlation, the apparatus including: a Radio Frequency (RF) unit to control a frequency of a signal to be measured, to broadcast the signal to be measured through multiple transmission antennas, to control a frequency of a received signal, and to send the received signal to the baseband unit, the received signal being received through multiple receiving antennas; and a baseband unit to generate and transmit, to the RF unit, the signal to be measured, to measure wireless channels for each of the multiple transmission antennas and wireless channels for each of the multiple receiving antennas based on the received signal output from the RF unit, to calculate a correlation for each of the multiple transmission antennas, and to calculate a correlation for each of the multiple receiving antennas based on the wireless channels for each of the multiple transmission and receiving antennas.

摘要翻译： 一种测量无线信道和多天线相关性的便携式装置，该装置包括：用于控制要测量的信号的频率的射频（RF）单元，以通过多个发送天线广播待测量的信号，以控制 接收信号的频率，并将接收到的信号发送到基带单元，接收的信号通过多个接收天线接收; 以及基带单元，用于基于从RF输出的接收信号，向RF单元生成并发送要测量的信号，以测量多个发射天线中的每一个以及多个接收天线中的每一个的无线信道的无线信道 计算多个发送天线中的每一个的相关性，并且基于多个发送和接收天线中的每一个的无线信道来计算每个多个接收天线的相关性。

公开(公告)号：US08369395B2

公开(公告)日：2013-02-05

申请号：US12557393

申请日：2009-09-10

申请人： Myung Don Kim ,  Jae Joon Park ,  Won Sop Kim ,  Young-Hoon Kim ,  Hyun Kyu Chung

发明人： Myung Don Kim ,  Jae Joon Park ,  Won Sop Kim ,  Young-Hoon Kim ,  Hyun Kyu Chung

IPC分类号： H04B3/46 ,  H04B7/10

CPC分类号： H04B17/0085 ,  H04B17/10 ,  H04B17/20 ,  H04B17/26

摘要： A portable apparatus including: a Radio Frequency (RF) unit to control a frequency of a signal to be measured, to broadcast the signal to be measured through multiple transmission antennas, to control a frequency of a received signal, and to send the received signal to the baseband unit, the received signal being received through multiple receiving antennas; and a baseband unit to generate and transmit, to the RF unit, the signal to be measured, to measure wireless channels for each of the multiple transmission antennas and wireless channels for each of the multiple receiving antennas based on the received signal output from the RF unit, to calculate a correlation for each of the multiple transmission antennas, and to calculate a correlation for each of the multiple receiving antennas based on the wireless channels for each of the multiple transmission and receiving antennas.

摘要翻译： 一种便携式设备，包括：射频（RF）单元，用于控制要测量的信号的频率，通过多个发送天线广播待测量的信号，以控制接收信号的频率，并发送接收信号 所述接收信号通过多个接收天线被接收到所述基带单元; 以及基带单元，用于基于从RF输出的接收信号，向RF单元生成并发送要测量的信号，以测量多个发射天线中的每一个以及多个接收天线中的每一个的无线信道的无线信道 计算多个发送天线中的每一个的相关性，并且基于多个发送和接收天线中的每一个的无线信道来计算每个多个接收天线的相关性。

公开(公告)号：US20100217763A1

公开(公告)日：2010-08-26

申请号：US12678545

申请日：2008-05-19

申请人： Jae Joon Park ,  Won Sop Kim ,  Myung Don Kim ,  Hyun Kyu Chung ,  Seong-Cheol Kim ,  Ja-ho Koo ,  Namkoo Kang

发明人： Jae Joon Park ,  Won Sop Kim ,  Myung Don Kim ,  Hyun Kyu Chung ,  Seong-Cheol Kim ,  Ja-ho Koo ,  Namkoo Kang

IPC分类号： G06F17/30

CPC分类号： H04B7/0413 ,  G06K9/6218

摘要： An automatic clustering method using an Average-linkage algorithm and a KPower Means algorithm, and a method and apparatus for multi-path clustering required for a spatial channel modeling (SCM) in a wireless communication environment are provided. The automatic clustering method, including: a first step of obtaining an initial cluster centroid using a hierarchical clustering algorithm; a second step of moving the initial cluster centroid using a two dimensional clustering algorithm; a third step of clustering a data set according to the moved initial cluster centroid; and a fourth step of calculating a validation index with respect to the clustered data set and determining an optimal number of clusters.

摘要翻译： 提供了使用平均联动算法和KPower均值算法的自动聚类方法，以及在无线通信环境中为空间信道建模（SCM）所需的多径聚类的方法和装置。 自动聚类方法，包括：使用分层聚类算法获得初始聚类中心的第一步; 使用二维聚类算法移动初始聚类中心的第二步; 根据移动的初始聚类质心对数据集进行聚类的第三步骤; 以及第四步骤，相对于所述聚类数据集计算验证索引并确定最佳聚类数。

公开(公告)号：US08358601B2

公开(公告)日：2013-01-22

申请号：US12746362

申请日：2008-09-03

申请人： Myung Don Kim ,  Jae Joon Park ,  Won Sop Kim ,  Hyun Kyu Chung

发明人： Myung Don Kim ,  Jae Joon Park ,  Won Sop Kim ,  Hyun Kyu Chung

IPC分类号： H04J3/00 ,  H04W40/00

CPC分类号： H04B17/0085 ,  H04B7/0604 ,  H04W24/00

摘要： The present invention relates to a multi-antenna radio channel measurement system and method which generates a Time Division Duplex (TDD) timing signal and measures a two-way radio channel. The multi-antenna radio channel measurement system which measures a probing signal for measuring a radio channel, the multi-antenna radio channel measurement system including: a baseband unit alternately transmits the probing signal for measurement and receives the received channel signal to be measured based on a TDD synchronization time; a synchronization unit which obtains time synchronization with the other radio channel measurement system, generates a transmission/reception synchronization signal, and provides the transmission/reception synchronization signal to the baseband unit; a transceiver unit which up converts the probing signal for measurement and down converts the received channel signal; and a radio frequency (RF) front-end unit which switches suitable antennas according to a timing control signal of the baseband unit.

摘要翻译： 本发明涉及一种生成时分双工（TDD）定时信号并测量双向无线电信道的多天线无线电信道测量系统和方法。 多天线无线电信道测量系统，其测量用于测量无线电信道的探测信号，所述多天线无线电信道测量系统包括：基带单元，交替发送用于测量的探测信号，并基于 TDD同步时间; 获得与其他无线电信道测量系统的时间同步的同步单元生成发送/接收同步信号，并向基带单元提供发送/接收同步信号; 收发单元，其向上转换用于测量的探测信号，并对接收的信道信号进行下变频; 以及射频（RF）前端单元，其根据基带单元的定时控制信号切换合适的天线。

公开(公告)号：US20100260078A1

公开(公告)日：2010-10-14

申请号：US12746362

申请日：2008-09-03

申请人： Myung Don Kim ,  Jae Joon Park ,  Won Sop Kim ,  Hyun Kyu Chung

发明人： Myung Don Kim ,  Jae Joon Park ,  Won Sop Kim ,  Hyun Kyu Chung

IPC分类号： H04J3/06

CPC分类号： H04B17/0085 ,  H04B7/0604 ,  H04W24/00

摘要： The present invention relates to a multi-antenna radio channel measurement system and method which generates a Time Division Duplex (TDD) timing signal and measures a two-way radio channel. The multi-antenna radio channel measurement system which measures a probing signal for measuring a radio channel, the multi-antenna radio channel measurement system including: a baseband unit alternately transmits the probing signal for measurement and receives the received channel signal to be measured based on a TDD synchronization time; a synchronization unit which obtains time synchronization with the other radio channel measurement system, generates a transmission/reception synchronization signal, and provides the transmission/reception synchronization signal to the baseband unit; a transceiver unit which up converts the probing signal for measurement and down converts the received channel signal; and a radio frequency (RF) front-end unit which switches suitable antennas according to a timing control signal of the baseband unit.

摘要翻译： 本发明涉及一种生成时分双工（TDD）定时信号并测量双向无线电信道的多天线无线电信道测量系统和方法。 多天线无线电信道测量系统，其测量用于测量无线电信道的探测信号，所述多天线无线电信道测量系统包括：基带单元，交替发送用于测量的探测信号，并基于 TDD同步时间; 获得与其他无线电信道测量系统的时间同步的同步单元生成发送/接收同步信号，并向基带单元提供发送/接收同步信号; 收发单元，其向上转换用于测量的探测信号，并对接收的信道信号进行下变频; 以及射频（RF）前端单元，其根据基带单元的定时控制信号切换合适的天线。

公开(公告)号：US08446861B2

公开(公告)日：2013-05-21

申请号：US12746120

申请日：2008-11-26

申请人： Myung Don Kim ,  Jae Joon Park ,  Won Sop Kim ,  Heon Kook Kwon ,  Hyun Kyu Chung

发明人： Myung Don Kim ,  Jae Joon Park ,  Won Sop Kim ,  Heon Kook Kwon ,  Hyun Kyu Chung

IPC分类号： H04B7/216 ,  H04W4/00 ,  H04W24/00

CPC分类号： H04B7/0814 ,  H04B17/336

摘要： The present invention relates to a multi-antenna radio channel measurement system and method for a two-way radio channel measurement, including: Control & Console Software to select a radio measurement mode, generate a probing signal for measurement, receive input parameters to be measured, and deliver the parameters to a baseband unit; a baseband unit (BBU) to set a transmission/reception frequency band and bandwidth and set a timing using the selected radio measurement mode and the received input parameters; a timing unit to synchronize a time with another radio channel measurement system to generate a transmission/reception synchronization signal, and provide the transmission/reception synchronization signal to the BBU; a transceiver unit (TRXU) to up-convert the probing signal for measurement and down-convert the reception channel signal; and a radio frequency (RF) front-end unit (RFFU) to switch to a suitable antenna according to a timing control signal of the BBU.

摘要翻译： 本发明涉及用于双向无线电信道测量的多天线无线电信道测量系统和方法，包括：控制和控制台软件选择无线电测量模式，生成测量信号，接收待测量的输入参数 并将参数传送到基带单元; 基带单元（BBU），用于设置发送/接收频带和带宽，并使用所选择的无线电测量模式和所接收的输入参数来设置定时; 定时单元，用于将时间与另一无线电信道测量系统同步以产生发送/接收同步信号，并向BBU提供发送/接收同步信号; 收发器单元（TRXU），用于上变频用于测量的探测信号并对接收信道信号进行下变频; 以及射频（RF）前端单元（RFFU），以根据BBU的定时控制信号切换到合适的天线。

公开(公告)号：US20120020432A1

公开(公告)日：2012-01-26

申请号：US12672741

申请日：2008-08-08

申请人： Won Sop Kim ,  Jae Joon Park ,  Myung Don Kim ,  Hyun Kyu Chung

发明人： Won Sop Kim ,  Jae Joon Park ,  Myung Don Kim ,  Hyun Kyu Chung

IPC分类号： H04L27/06 ,  H04L25/49

CPC分类号： H04L25/0204 ,  H04B7/0413 ,  H04L25/0226

摘要： Disclosed are a method and apparatus for estimating a Multiple Input Multiple. Output (MIMO) channel. A signal transmission method for estimating the MIMO channel via 2N transmission antennas (N is greater than or equal to “1”) includes generating a code having a predetermined Interference Free Window (IFW), and transmitting the code via two transmission antennas.

摘要翻译： 公开了一种用于估计多输入多重的方法和装置。 输出（MIMO）信道。 用于通过2N个发送天线（N大于或等于“1”）估计MIMO信道的信号传输方法包括生成具有预定的无干扰窗口（IFW）的代码，并且经由两个发送天线发送代码。

公开(公告)号：US20100271953A1

公开(公告)日：2010-10-28

申请号：US12746120

申请日：2008-11-26

申请人： Myung Don Kim ,  Jae Joon Park ,  Won Sop Kim ,  Heon Kook Kwon ,  Hyun Kyu Chung

发明人： Myung Don Kim ,  Jae Joon Park ,  Won Sop Kim ,  Heon Kook Kwon ,  Hyun Kyu Chung

IPC分类号： H04L12/26 ,  H04B17/00

CPC分类号： H04B7/0814 ,  H04B17/336

摘要： The present invention relates to a multi-antenna radio channel measurement system and method for a two-way radio channel measurement, including: Control & Console Software to select a radio measurement mode, generate a probing signal for measurement, receive input parameters to be measured, and deliver the parameters to a baseband unit; a baseband unit (BBU) to set a transmission/reception frequency band and bandwidth and set a timing using the selected radio measurement mode and the received input parameters; a timing unit to synchronize a time with another radio channel measurement system to generate a transmission/reception synchronization signal, and provide the transmission/reception synchronization signal to the BBU; a transceiver unit (TRXU) to up-convert the probing signal for measurement and down-convert the reception channel signal; and a radio frequency (RF) front-end unit (RFFU) to switch to a suitable antenna according to a timing control signal of the BBU.

摘要翻译： 本发明涉及用于双向无线电信道测量的多天线无线电信道测量系统和方法，包括：控制和控制台软件选择无线电测量模式，生成测量信号，接收待测量的输入参数 并将参数传送到基带单元; 基带单元（BBU），用于设置发送/接收频带和带宽，并使用所选择的无线电测量模式和所接收的输入参数来设置定时; 定时单元，用于将时间与另一无线电信道测量系统同步以产生发送/接收同步信号，并向BBU提供发送/接收同步信号; 收发器单元（TRXU），用于上变频用于测量的探测信号并对接收信道信号进行下变频; 以及射频（RF）前端单元（RFFU），以根据BBU的定时控制信号切换到合适的天线。

公开(公告)号：US09048933B2

公开(公告)日：2015-06-02

申请号：US13619967

申请日：2012-09-14

申请人： Heon Kook Kwon ,  Myung Don Kim ,  Jae Joon Park ,  Hyun Kyu Chung

发明人： Heon Kook Kwon ,  Myung Don Kim ,  Jae Joon Park ,  Hyun Kyu Chung

IPC分类号： H04L5/00 ,  H04J1/00 ,  H04J3/00 ,  H04B1/58

CPC分类号： H04B1/525 ,  H04B1/58

摘要： Disclosed is a radio-frequency front-end apparatus that can be used in wireless communication systems performing transmission/reception by using a single antenna. The radio-frequency transceiving front-end apparatus using passive elements in a wireless communication system includes: a transmitting unit's hybrid coupler configured to divide and output a transmission signal into two outputs having a phase difference of 90°; a first circulator configured to receive a first output of the hybrid coupler through a first terminal thereof and output the received first output through a second terminal thereof; a second circulator configured to receive a second output of the hybrid coupler through a first terminal thereof and output the received second output through a second terminal thereof; and an output unit's hybrid coupler configured to receive transmission signals from the second terminal of the first circulator and the second terminal of the second circulator, and combine and output the received signals.

摘要翻译： 公开了可以用于通过使用单个天线执行发送/接收的无线通信系统中的射频前端装置。 在无线通信系统中使用无源元件的射频收发前端装置包括：发送单元的混合耦合器，被配置为将发送信号分频并输出为具有90°的相位差的两个输出; 第一循环器，被配置为通过其第一端接收所述混合耦合器的第一输出，并通过其第二端输出所接收的第一输出; 第二循环器，被配置为通过其第一端接收所述混合耦合器的第二输出，并通过其第二端输出所接收的第二输出; 以及输出单元的混合耦合器，被配置为从第一循环器的第二端子和第二循环器的第二端子接收传输信号，并且组合并输出接收的信号。

公开(公告)号：US20130163488A1

公开(公告)日：2013-06-27

申请号：US13619967

申请日：2012-09-14

申请人： Heon Kook Kwon ,  Myung Don Kim ,  Jae Joon Park ,  Hyun Kyu Chung

发明人： Heon Kook Kwon ,  Myung Don Kim ,  Jae Joon Park ,  Hyun Kyu Chung

IPC分类号： H04L5/00

CPC分类号： H04B1/525 ,  H04B1/58

摘要： Disclosed is a radio-frequency front-end apparatus that can be used in wireless communication systems performing transmission/reception by using a single antenna. The radio-frequency transceiving front-end apparatus using passive elements in a wireless communication system includes: a transmitting unit's hybrid coupler configured to divide and output a transmission signal into two outputs having a phase difference of 90°; a first circulator configured to receive a first output of the hybrid coupler through a first terminal thereof and output the received first output through a second terminal thereof; a second circulator configured to receive a second output of the hybrid coupler through a first terminal thereof and output the received second output through a second terminal thereof; and an output unit's hybrid coupler configured to receive transmission signals from the second terminal of the first circulator and the second terminal of the second circulator, and combine and output the received signals.

摘要翻译： 公开了可以用于通过使用单个天线执行发送/接收的无线通信系统中的射频前端装置。 在无线通信系统中使用无源元件的射频收发前端装置包括：发送单元的混合耦合器，被配置为将发送信号分频并输出为具有90°的相位差的两个输出; 第一循环器，被配置为通过其第一端接收所述混合耦合器的第一输出，并通过其第二端输出所接收的第一输出; 第二循环器，被配置为通过其第一端接收所述混合耦合器的第二输出，并通过其第二端输出所接收的第二输出; 以及输出单元的混合耦合器，被配置为从第一循环器的第二端子和第二循环器的第二端子接收传输信号，并且组合并输出接收的信号。