公开(公告)号：US07933953B2

公开(公告)日：2011-04-26

申请号：US12133094

申请日：2008-06-04

申请人： Jinsoup Joung ,  Seunghwan Ji ,  Junwan Park ,  Jahon Koo

发明人： Jinsoup Joung ,  Seunghwan Ji ,  Junwan Park ,  Jahon Koo

IPC分类号： G06F15/16

CPC分类号： H04L1/24 ,  H04L69/03

摘要： Disclosed herein is a dual processing system capable of ensuring real-time processing in a protocol conformance test. A protocol testing device performs a test on a layer under protocol test provided in a device under test. A communication device processes the protocol of a layer below the layer under protocol test between the device under test and the protocol testing device. The communication device processes a protocol test message, requiring real-time processing, instead of the protocol testing device, and transmits processing results for the protocol test message to the protocol testing device. The protocol testing device processes a protocol test message, not requiring real-time processing, and determines the conformance of the layer under protocol test provided in the device under test based on the processing results for the protocol test message.

摘要翻译： 这里公开了能够确保协议一致性测试中的实时处理的双重处理系统。 协议测试设备在被测设备中提供协议测试的层上执行测试。 通信设备在被测设备和协议测试设备之间协议测试下处理层下面的协议。 通信设备处理协议测试消息，需要实时处理，而不是协议测试设备，并将协议测试消息的处理结果发送到协议测试设备。 协议测试设备处理协议测试消息，不需要实时处理，并且根据协议测试消息的处理结果确定被测设备中提供的协议测试下的层的一致性。

公开(公告)号：US20080313344A1

公开(公告)日：2008-12-18

申请号：US12133094

申请日：2008-06-04

申请人： Jinsoup Joung ,  Seunghwan Ji ,  Junwan Park ,  Jahon Koo

发明人： Jinsoup Joung ,  Seunghwan Ji ,  Junwan Park ,  Jahon Koo

IPC分类号： G06F15/16

CPC分类号： H04L1/24 ,  H04L69/03

摘要： Disclosed herein is a dual processing system capable of ensuring real-time processing in a protocol conformance test. A protocol testing device performs a test on a layer under protocol test provided in a device under test. A communication device processes the protocol of a layer below the layer under protocol test between the device under test and the protocol testing device. The communication device processes a protocol test message, requiring real-time processing, instead of the protocol testing device, and transmits processing results for the protocol test message to the protocol testing device. The protocol testing device processes a protocol test message, not requiring real-time processing, and determines the conformance of the layer under protocol test provided in the device under test based on the processing results for the protocol test message.

摘要翻译： 这里公开了能够确保协议一致性测试中的实时处理的双重处理系统。 协议测试设备在被测设备中提供协议测试的层上执行测试。 通信设备在被测设备和协议测试设备之间协议测试下处理层下面的协议。 通信设备处理协议测试消息，需要实时处理，而不是协议测试设备，并将协议测试消息的处理结果发送到协议测试设备。 协议测试设备处理协议测试消息，不需要实时处理，并且根据协议测试消息的处理结果确定被测设备中提供的协议测试下的层的一致性。

公开(公告)号：US07869370B2

公开(公告)日：2011-01-11

申请号：US12020763

申请日：2008-01-28

申请人： Cheoljin Lee ,  Jinsoup Joung ,  Kyeongmin Ha ,  Seunghwan Ji ,  Junwan Park

发明人： Cheoljin Lee ,  Jinsoup Joung ,  Kyeongmin Ha ,  Seunghwan Ji ,  Junwan Park

IPC分类号： H04L12/26

CPC分类号： H04W24/08 ,  H04W36/00

摘要： Disclosed herein is a portable Internet analyzer (PIA) having a handover test function. The portable Internet analyzer includes a transmission unit, a reception unit, a switching unit, and a central control unit. The transmission unit encodes the various DownLink signals of a serving and/or target Base Station (stBS) using a preamble index, synthesizes the encoded signals, and sends the synthesized signals to a Portable Subscriber Station (PSS). The reception unit receives various UpLink (UL) signals from the PSS, and decodes the UL signals using the cell Parameters of the stBS. The switching unit selectively switches the transmission unit and the reception unit to the PSS. The central control unit generates various Media Access Control (MAC) messages to be sent to the PSS through the transmission unit in association with the handover test, analyzes handover test-related MAC messages received through the reception unit, and controls switching operation of the switching unit.

摘要翻译： 这里公开了具有切换测试功能的便携式因特网分析器（PIA）。 便携式因特网分析仪包括发送单元，接收单元，切换单元和中央控制单元。 发送单元使用前置索引编码服务和/或目标基站（stBS）的各种DownLink信号，合成编码信号，并将合成信号发送到便携式用户站（PSS）。 接收单元从PSS接收各种UpLink（UL）信号，并使用stBS的信元参数解码UL信号。 开关单元有选择地将发送单元和接收单元切换到PSS。 中央控制单元通过与切换测试相关联的发送单元生成要发送到PSS的各种媒体访问控制（MAC）消息，分析通过接收单元接收到的切换测试相关的MAC消息，并且控制切换的切换操作 单元。

公开(公告)号：US20080069080A1

公开(公告)日：2008-03-20

申请号：US11856938

申请日：2007-09-18

申请人： Jinsoup Joung ,  Kyeongmin Ha ,  Junwan Park ,  Cheoljin Lee

发明人： Jinsoup Joung ,  Kyeongmin Ha ,  Junwan Park ,  Cheoljin Lee

IPC分类号： H04J3/06

CPC分类号： H04W56/0005 ,  H04W8/26 ,  H04W24/06 ,  H04W84/10

摘要： Disclosed herein is a method of acquiring Uplink (UL) synchronization for a mobile WiMax system analyzer. When a DL sub-frame is received, the method is performed on a Portable Subscriber Station (PSS) having a test mode function of creating a UL sub-frame through the mobile WiMax system analyzer having signal generating means configured to store the CID information in advance and signal analyzing means configured to receive and analyze the DL sub-frame. The method includes step (a) of the signal generating means continuously D/A converting, RF-modulating and outputting the DL sub-frame, step (b) of the signal analyzing means receiving the UL sub-frame, step (c) of the signal analyzing means continuously demodulating, A/D-converting and capturing the modulated UL sub-frame, and step (d) of the signal analyzing means acquiring UL synchronization by comparing the UL sub-frame with the data captured at step (c) using a time correlation technique.

摘要翻译： 本文公开了一种获取移动WiMax系统分析器的上行链路（UL）同步的方法。 当接收到DL子帧时，该方法是通过具有信号生成装置的移动WiMax系统分析器具有创建UL子帧的测试模式功能的便携式用户站（PSS）执行的，该信号生成装置被配置为将CID信息存储在 提前和信号分析装置，被配置为接收和分析DL子帧。 该方法包括信号发生装置的步骤（a），连续D / A转换，RF调制和输出DL子帧，接收UL子帧的信号分析装置的步骤（b），步骤（c） 所述信号分析装置对所述经调制的UL子帧进行连续解调，A / D转换和捕获，并且所述信号分析装置的步骤（d）通过将UL子帧与步骤（c）中捕获的数据进行比较来获取UL同步， 使用时间相关技术。

公开(公告)号：US08130884B2

公开(公告)日：2012-03-06

申请号：US11832706

申请日：2007-08-02

申请人： Jinsoup Joung ,  Byungkwan Jang ,  Kyeongmin Ha ,  Junwan Park

发明人： Jinsoup Joung ,  Byungkwan Jang ,  Kyeongmin Ha ,  Junwan Park

IPC分类号： H04L7/00

CPC分类号： H04L7/041 ,  G01R23/16 ,  H04J3/16

摘要： Disclosed herein are an apparatus and method for synchronizing a signal analyzer. The apparatus includes an Analog-to-Digital Converter (ADC), a signal storage unit, a trigger signal generation unit, a signal acquisition control unit, a signal analysis unit, and a time error control unit. The ADC converts the input signal into a corresponding digital signal. The signal storage unit stores therein the digital signal received from the ADC. The trigger signal generation unit generates a trigger signal for each predetermined period. the signal acquisition control unit acquires the digital signal from a signal acquisition time point. The signal analysis unit calculates the start position of a frame from the digital signal. The time error control unit calculates a time error between the time point at which each trigger signal is generated and the start position of the digital signal, and sets a subsequent signal acquisition time point based on the calculated time errors.

摘要翻译： 本文公开了一种用于使信号分析器同步的装置和方法。 该装置包括模数转换器（ADC），信号存储单元，触发信号生成单元，信号采集控制单元，信号分析单元和时间误差控制单元。 ADC将输入信号转换为相应的数字信号。 信号存储单元存储从ADC接收的数字信号。 触发信号生成单元在每个预定周期生成触发信号。 信号获取控制单元从信号获取时间点获取数字信号。 信号分析单元从数字信号计算帧的起始位置。 时间误差控制单元计算生成每个触发信号的时间点和数字信号的开始位置之间的时间误差，并且基于计算出的时间误差来设置后续的信号获取时间点。

公开(公告)号：US08976718B2

公开(公告)日：2015-03-10

申请号：US13822766

申请日：2011-01-06

申请人： Jinsoup Joung ,  Seunghwan Ji ,  Yonghoon Lim ,  Jaesung Lee

发明人： Jinsoup Joung ,  Seunghwan Ji ,  Yonghoon Lim ,  Jaesung Lee

IPC分类号： H04B7/00 ,  H04W24/00 ,  H04B17/00 ,  H04L5/00 ,  H04L5/14

CPC分类号： H04W24/00 ,  H04B17/318 ,  H04B17/382 ,  H04L5/0007 ,  H04L5/1469

摘要： This invention relates to an automatic detection apparatus for UL/DL configuration in LTE-TDD signal and the method thereby for automatically detecting the UL/DL configuration number of an LTE-TDD signal without a decoder by using a simple structure. An automatic detection apparatus for UL/DL configuration in LTE-TDD signal comprises: a signal receiving unit for receiving an LTE-TDD RF signal and converting the LTE-TDD RF signal into a LTE-TDD baseband signal; a signal extracting unit for extracting a cell-specific reference signal for each subframe length in one frame length of the LTE-TDD baseband signal received from the signal receiving unit; a signal power measurement unit for measuring the power of the corresponding subframe reference signal according to the cell-specific reference signal received from the signal extracting unit; and an UL/DL configuration determination unit for determining whether the corresponding subframe is a DL subframe or an UL subframe according to the comparison result of the power of the corresponding subframe reference signal measured in the signal power measurement unit with a predetermined reference value, and determining the UL/DL configuration number for the corresponding frame based on the subframe number determined as described above. In the above configuration, it is characterized in that the predetermined reference value is the noise power without any LTE-TDD signal.

摘要翻译： 本发明涉及用于LTE-TDD信号中的UL / DL配置的自动检测装置及其方法，其通过使用简单的结构自动检测没有解码器的LTE-TDD信号的UL / DL配置号。 一种用于LTE-TDD信号中UL / DL配置的自动检测装置，包括：信号接收单元，用于接收LTE-TDD RF信号，并将LTE-TDD RF信号转换为LTE-TDD基带信号; 信号提取单元，用于从从信号接收单元接收的LTE-TDD基带信号的一个帧长度中提取每个子帧长度的小区特定参考信号; 信号功率测量单元，用于根据从信号提取单元接收的小区特定参考信号来测量相应子帧参考信号的功率; 以及UL / DL配置确定单元，用于根据在具有预定参考值的信号功率测量单元中测量的相应子帧参考信号的功率的比较结果来确定相应子帧是否为DL子帧或UL子帧，以及 基于如上所述确定的子帧号来确定相应帧的UL / DL配置编号。 在上述配置中，其特征在于，预定参考值是没有任何LTE-TDD信号的噪声功率。

公开(公告)号：US20130215856A1

公开(公告)日：2013-08-22

申请号：US13876690

申请日：2011-02-22

申请人： Jinsoup Joung ,  Seunghwan Ji ,  Yonghoon Lim ,  Eunjin Lee ,  Seungik Yang

发明人： Jinsoup Joung ,  Seunghwan Ji ,  Yonghoon Lim ,  Eunjin Lee ,  Seungik Yang

IPC分类号： H04W74/08

CPC分类号： H04W74/0833 ,  H04L27/2613 ,  H04L27/2627 ,  H04L27/2663

摘要： The present invention relates to a method for shortening the time taken for physical random access channel (PRACH) signal synchronization and preamble sequence detection in an LTE uplink system, and more particularly, to a method for shortening the time taken for preamble sequence detection using an inverse discrete Fourier transform. To this end, a preamble sequence detection apparatus according to the present invention comprises: a reference signal generation unit, which receives a first signal having a predetermined value, generates a preamble sequence, performs a discrete Fourier transform, a subcarrier mapping, and an inverse discrete Fourier transform on the generated preamble sequence, and then expands the resultant signal at a set rate to quantize the resultant signal; a PRACH reception unit which receives a PRACH signal transmitted from a terminal; and a correlation unit which detects a correlation between the reference signal received from the reference signal generation unit and a signal received from the PRACH reception unit.

摘要翻译： 本发明涉及一种在LTE上行链路系统中缩短物理随机接入信道（PRACH）信号同步和前同步码序列检​​测所花费的时间的方法，更具体地说，涉及一种缩短使用 逆离散傅里叶变换。 为此，根据本发明的前序序列检测装置包括：参考信号生成单元，其接收具有预定值的第一信号，生成前导码序列，执行离散付里叶变换，子载波映射和反相 对所生成的前导码序列进行离散傅里叶变换，然后以设定的速率扩展所得到的信号以量化所得到的信号; PRACH接收单元，其接收从终端发送的PRACH信号; 以及相关单元，其检测从参考信号生成单元接收的参考信号与从PRACH接收单元接收的信号之间的相关性。

公开(公告)号：US08982687B2

公开(公告)日：2015-03-17

申请号：US13820193

申请日：2010-12-30

申请人： Jinsoup Joung ,  Kyeongmin Ha ,  Seunghwan Ji ,  Yonghoon Lim ,  Byungkwan Jang

发明人： Jinsoup Joung ,  Kyeongmin Ha ,  Seunghwan Ji ,  Yonghoon Lim ,  Byungkwan Jang

IPC分类号： H04J11/00 ,  H04J1/16 ,  H04L27/26 ,  H04L27/38

CPC分类号： H04J1/16 ,  H04L27/2647 ,  H04L27/3854

摘要： The present invention relates to an apparatus and a method for eliminating I/Q offset in a receiver of a SC-FDMA system which improves performance of the system by accurate measurement and cancellation of I/Q offset in a receiver of a SC-FDMA system operating in a 3GPP LTE uplink. An apparatus for eliminating I/Q offset in a receiver of the SC-FDMA system constituting the receiver of the SC-FDMA system includes: a linear interpolation channel estimation unit for estimating channel using demodulation reference symbol (DMRS) that is a training sequence (X) corresponding to the discrete Fourier transformed signal (Y) that has passed through frame sync acquisition, frequency compensation and cyclic prefix elimination; a signal regeneration/cancellation unit for calculating I/Q offset (D=Y−Y′) by subtracting the discrete Fourier transformed signal (Y) from the ideal discrete Fourier transformed signal (Y′=H′X) generated by using channel coefficient (H′), that is an output of the linear interpolation channel estimation unit, and the DMRS that is the training sequence (X); and an I/Q offset measurement/cancellation unit for generating VQ offset-free signal (YNoDC=Y−D′) by subtracting I/Q offset (D′) having corrected phase and power of the VQ offset (D=Y−Y′) from the discrete Fourier transformed signal (Y).

摘要翻译： 本发明涉及一种用于消除SC-FDMA系统的接收机中的I / Q偏移的装置和方法，其通过在SC-FDMA系统的接收机中精确测量和消除I / Q偏移来提高系统的性能 在3GPP LTE上行链路中工作。 构成SC-FDMA系统的接收机的SC-FDMA系统的接收机中的I / Q偏移消除装置包括：线性内插信道估计单元，用于使用作为训练序列的解调参考符号（DMRS）来估计信道 X）对应于通过帧同步捕获，频率补偿和循环前缀消除的离散傅立叶变换信号（Y）; 信号再现/消除单元，用于通过从使用信道系数产生的理想离散付里叶变换信号（Y'= H'X）中减去离散付里叶变换信号（Y）来计算I / Q偏移（D = Y-Y'） （H'），即线性内插信道估计单元的输出，作为训练序列（X）的DMRS; 以及用于通过减去具有校正相位的I / Q偏移（D'）和VQ偏移的功率来产生VQ无偏移信号（YNoDC = Y-D'）的I / Q偏移测量/消除单元（D = Y-Y' '）离散傅里叶变换信号（Y）。

公开(公告)号：US20130208679A1

公开(公告)日：2013-08-15

申请号：US13825149

申请日：2011-02-22

申请人： Jinsoup Joung ,  Seunghwan Ji ,  Yonghoon Lim ,  Eunjin Lee ,  Seungik Yang

发明人： Jinsoup Joung ,  Seunghwan Ji ,  Yonghoon Lim ,  Eunjin Lee ,  Seungik Yang

IPC分类号： H04W56/00

CPC分类号： H04W56/001 ,  H04L27/2613 ,  H04W28/06 ,  H04W56/0005 ,  H04W56/0085 ,  H04W74/0833

摘要： The present invention relates to a method for shortening the time taken for physical random access channel (PRACH) signal synchronization and preamble sequence detection in an LTE uplink system, and more particularly, to a method for shortening the time taken for preamble sequence detection using an inverse discrete Fourier transform. To this end, a preamble sequence detection apparatus according to the present invention comprises: a reference signal generation unit, which includes a preamble sequence generation unit for receiving a first signal having a predetermined length and outputting a plurality of second signals having the length of 839, a discrete Fourier transform unit for performing a discrete Fourier transform on the second signals received from the preamble sequence generation unit to transform the second signals into a frequency domain signal, a subcarrier mapping unit for mapping the frequency domain signal outputted from the discrete Fourier transform unit to a subcarrier, and an inverse discrete Fourier transform unit for receiving a signal having the length of 2n from the subcarrier mapping unit and performing an inverse discrete Fourier transform to transform the received signal into a time domain signal having the length of 2n; a PRACH reception unit which receives a PRACH signal transmitted from a terminal; and a second correlation unit which detects a correlation between the reference signal received from the reference signal generation unit and a signal received from the PRACH reception unit.

摘要翻译： 本发明涉及一种在LTE上行链路系统中缩短物理随机接入信道（PRACH）信号同步和前同步码序列检​​测所花费的时间的方法，更具体地说，涉及一种缩短使用 逆离散傅里叶变换。 为此，根据本发明的前序序列检测装置包括：参考信号生成单元，包括：前导序列生成单元，用于接收具有预定长度的第一信号，并输出长度为839的多个第二信号 离散傅里叶变换单元，用于对从前序序列生成单元接收到的第二信号进行离散付里叶变换，将第二信号变换为频域信号;子载波映射单元，用于映射从离散傅里叶变换 以及离散傅里叶逆变换单元，用于从子载波映射单元接收长度为2n的信号，并执行逆离散付里叶变换，将接收信号变换为长度为2n的时域信号; PRACH接收单元，其接收从终端发送的PRACH信号; 以及第二相关单元，其检测从参考信号生成单元接收的参考信号与从PRACH接收单元接收的信号之间的相关性。

公开(公告)号：US08488660B2

公开(公告)日：2013-07-16

申请号：US12872416

申请日：2010-08-31

申请人： Jinsoup Joung ,  Kyeongmin Ha ,  Seunghwan Ji ,  Jaesung Lee

发明人： Jinsoup Joung ,  Kyeongmin Ha ,  Seunghwan Ji ,  Jaesung Lee

IPC分类号： H04B3/46

CPC分类号： H04B17/309

摘要： A signal analysis apparatus of an LTE system includes a radio frequency reception unit for receiving a radio frequency signal of the LTE system and converting it into a signal of an intermediate frequency, a digital signal conversion unit for converting an analog signal, processed by the radio frequency reception unit, into a digital signal, a baseband conversion unit for converting the signal of the intermediate frequency into a baseband signal, a baseband signal simple analysis unit for decoding the baseband signal in real time in accordance with an LTE standard, a signal depository for storing the baseband signal, a baseband signal precision analysis unit for decoding and analyzing the baseband signal in accordance with the LTE standard and analyzing various items derived in the decoding process, two switching units for alternatively connecting the baseband conversion unit or the signal depository to the baseband signal simple analysis unit or the baseband signal precision analysis unit, and a control unit for controlling the switching units.

摘要翻译： LTE系统的信号分析装置包括：射频接收单元，用于接收LTE系统的射频信号并将其转换为中频信号;数字信号转换单元，用于转换由无线电处理的模拟信号; 频率接收单元转换为数字信号，用于将中频信号转换为基带信号的基带转换单元，用于根据LTE标准实时地对基带信号进行解码的基带信号简单分析单元，信号存储单元 用于存储基带信号的基带信号精度分析单元，用于根据LTE标准对基带信号进行解码和分析，并分析在解码处理中导出的各种项目，将两个交换单元交替地连接到基带转换单元或信号存储器， 基带信号简单分析单元或基带信号精度分析 单元，以及用于控制开关单元的控制单元。