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1. 发明申请

US20100135438A1 SIGNAL DETECTION METHOD AND RECEIVER 有权
标题翻译：信号检测方法与接收机
公开(公告)号：US20100135438A1
公开(公告)日：2010-06-03
申请号：US12627506
申请日：2009-11-30
申请人： Young Jo BANG , Hyeong Sook PARK , Jun-Woo KIM , Kyung Yeol SOHN , Chang Wahn YU , Youn Ok PARK , Jee Hwan AHN , Il Min KIM
发明人： Young Jo BANG , Hyeong Sook PARK , Jun-Woo KIM , Kyung Yeol SOHN , Chang Wahn YU , Youn Ok PARK , Jee Hwan AHN , Il Min KIM
IPC分类号： H04L27/06
CPC分类号： H04L25/067 , H04B7/0413
摘要： Disclosed is a method of detecting signals at a receiver of a communication system with a multiple input multiple output antenna. With the signal detection method, a square of the distance between a received signal vector and a channel status-considered transmission symbol vector is calculated first, and the square of the distance is then classified into first and second components. The first component is minimized to calculate a plurality of first soft symbol estimates. A solution set of the first component is calculated on the basis of the plurality of first soft symbol estimates. The second component is minimized to calculate a plurality of second soft symbol estimates. A solution set of the second component is calculated on the basis of the plurality of second soft symbol estimates. A final solution set is calculated by doing the sum of the first component solution set and the second component solution.
摘要翻译：公开了一种在具有多输入多输出天线的通信系统的接收机处检测信号的方法。利用信号检测方法，首先计算接收信号矢量和通道状态考虑的发送符号向量之间的距离的平方，然后将距离的平方分成第一和第二分量。将第一分量最小化以计算多个第一软符号估计。基于多个第一软符号估计来计算第一分量的解集合。将第二分量最小化以计算多个第二软符号估计。基于多个第二软符号估计来计算第二分量的解集合。通过执行第一分量解集合和第二分量解的和来计算最终解集。

2. 发明申请

US20090141786A1 APPARATUS AND METHOD OF ESTIMATING SIGNAL-TO-NOISE RATIO 有权
标题翻译：装置和估计信号噪声比的方法
公开(公告)号：US20090141786A1
公开(公告)日：2009-06-04
申请号：US12177511
申请日：2008-07-22
申请人： Hyeong Sook PARK , Jun-Woo KIM , Eon Young HONG , Youn Ok PARK
发明人： Hyeong Sook PARK , Jun-Woo KIM , Eon Young HONG , Youn Ok PARK
IPC分类号： H04B17/00 , H04L27/26
CPC分类号： H04L27/2647 , H04B17/336 , H04L27/2662
摘要： The present invention relates an apparatus and method of estimating a signal-to-noise ratio (SNR) of a received signal when the received signal has a timing offset. An apparatus for estimating a signal-to-noise ratio (SNR) according to an exemplary embodiment of the present invention includes a fast Fourier transform (FFT) unit that performs a fast Fourier transform on a received signal to convert the received signal into a frequency domain signal; a preamble selector that extracts a preamble from the frequency domain signal; a correlator that correlates the preamble to a preamble reference signal generated by a receiver to calculate a correlation value; an entire power estimator that calculates entire power; a noise power estimator that applies a differential demodulation method to the correlation value to remove a timing offset and calculate noise power; and an estimating unit that uses the entire power and the noise power to estimate the signal-to-noise ratio (SNR).
摘要翻译：本发明涉及一种当接收信号具有定时偏移量时估计接收信号的信噪比（SNR）的装置和方法。根据本发明的示例性实施例的用于估计信噪比（SNR）的装置包括对接收信号执行快速傅里叶变换的快速傅里叶变换（FFT）单元，以将接收到的信号转换成频率域信号前导码选择器，从所述频域信号中提取前同步码; 相关器，其将所述前导码与由接收器生成的前导码参考信号相关联，以计算相关值; 整个功率估计器，用于计算整个功率; 噪声功率估计器，其对所述相关值应用差分解调方法以去除定时偏移并计算噪声功率; 以及使用整个功率和噪声功率来估计信噪比（SNR）的估计单元。

3. 发明申请

US20120269251A1 METHOD AND APPARATUS FOR ESTIMATING SIGNAL TO NOISE RATIO IN WIRELESS COMMUNICATION SYSTEM 失效
标题翻译：在无线通信系统中估计噪声信噪比的方法和装置
公开(公告)号：US20120269251A1
公开(公告)日：2012-10-25
申请号：US13453450
申请日：2012-04-23
申请人： Hyeong Sook PARK , Jun Woo KIM , Youn Ok PARK
发明人： Hyeong Sook PARK , Jun Woo KIM , Youn Ok PARK
IPC分类号： H04B17/00 , H04W24/00
CPC分类号： H04B17/336 , H04B17/318 , H04B17/345
摘要： There is provided a method and apparatus for estimating a signal to noise ratio (SNR) in a wireless communication system. The apparatus selects a preamble signal for each of a plurality of sectors from a reception signal experienced by fast Fourier transform (FFT), outputs a correlation signal by performing a correlation between the preamble signal for each sector and a preamble reference signal, estimates power of the reception signal and noise power for each sector based on the correlation signal, selects a minimum value from among the noise powers for the sectors, outputs a net power for each sector by subtracting the minimum value from the power of the reception signal for each sector, and calculates the SNR by dividing the net power for each sector by the minimum value.
摘要翻译：提供了一种用于估计无线通信系统中的信噪比（SNR）的方法和装置。该装置从快速傅里叶变换（FFT）所经历的接收信号中选择多个扇区中的每一个的前同步信号，通过执行每个扇区的前导码信号与前导码参考信号之间的相关来输出相关信号，基于相关信号对每个扇区的接收信号和噪声功率，从扇区的噪声功率中选择最小值，通过从每个扇区的接收信号的功率中减去最小值来输出每个扇区的净功率，并且通过将每个扇区的净功率除以最小值来计算SNR。

4. 发明申请

US20090135947A1 METHOD OF SELECTING CANDIDATE VECTOR AND METHOD OF DETECTING TRANSMISSION SYMBOL 有权
标题翻译：选择候选矢量的方法和检测传输符号的方法
公开(公告)号：US20090135947A1
公开(公告)日：2009-05-28
申请号：US12141539
申请日：2008-06-18
申请人： Seung Jae BAHNG , Jae Kwon KIM , Hoon HEO , Hyun Myung WU , Youn Ok PARK , Young Jo BANG , Hyeong Sook PARK , Hoon LEE , Young Ha LEE , Jung Pil CHOI
发明人： Seung Jae BAHNG , Jae Kwon KIM , Hoon HEO , Hyun Myung WU , Youn Ok PARK , Young Jo BANG , Hyeong Sook PARK , Hoon LEE , Young Ha LEE , Jung Pil CHOI
IPC分类号： H04L27/00
CPC分类号： H04L25/067 , H04L25/03203 , H04L2025/03426
摘要： The present invention relates to a method of detecting a candidate vector and a method of detecting a transmission symbol using the same. According to an embodiment of the present invention, in a multiple input multiple output (MIMO) system using spatial multiplexing (SM), a receiver selects candidate vectors corresponding to a layer located at a last row among a plurality of rearranged layers, and sequentially ranks constellation dots of a next layer for each of the selected candidate vectors. Then, a plurality of arbitrary constellation dots are selected from the ranked constellation dots, accumulated costs of the arbitrary constellation dots are calculated, and a candidate vector is selected in correspondence with a constellation dot having a minimal accumulated cost. Then, a new arbitrary constellation dot is selected in place of the constellation dot selected as the candidate vector, an accumulated cost of the selected arbitrary constellation dot is compared with accumulated costs of the other arbitrary constellation dots, and another candidate vector is selected.
摘要翻译：本发明涉及检测候选向量的方法和使用其的发送符号的检测方法。根据本发明的实施例，在使用空间复用（SM）的多输入多输出（MIMO）系统中，接收机选择与多个重排层中位于最后一行的层相对应的候选向量，并且顺次排列每个所选候选向量的下一层的星座点。然后，从分级星座点中选择多个任意星座点，计算任意星座点的累积成本，并且与具有最小累积成本的星座点对应地选择候选矢量。然后，代替选择为候选矢量的星座点，选择新的任意星座点，将所选择的任意星座点的累积成本与其他任意星座点的累积成本进行比较，并选择另一候选矢量。

5. 发明申请

US20180279245A1 APPARATUS AND METHOD FOR DETECTING SYNCHRONIZATION AND SIGNALS USING BLOCK DATA PROCESSING 审中-公开
公开(公告)号：US20180279245A1
公开(公告)日：2018-09-27
申请号：US12906496
申请日：2010-10-18
申请人： Chang Wahn YU , Youn Ok PARK , Chong Hyun LEE , Jun-Woo KIM , Seungjae BAHNG , Byung-Han RYU , Jung Pil CHOI , Young Jo BANG
发明人： Chang Wahn YU , Youn Ok PARK , Chong Hyun LEE , Jun-Woo KIM , Seungjae BAHNG , Byung-Han RYU , Jung Pil CHOI , Young Jo BANG
IPC分类号： H04W56/00
CPC分类号： H04W56/004 , H04W56/0055
摘要： An apparatus and method for detecting synchronization and signals using block data processing in a receiving system are provided. To process an input signal, a cumulative matrix is obtained from an input vector signal for each frame generated from the signal. A primary eigenvector is extracted from the cumulative matrix, and the maximum value of a correlation vector is calculated from the extracted primary eigenvector. A time delay is detected by comparing the calculated maximum value of the correlation vector with a first threshold value, and a delay correlation vector is calculated from the detected time delay. Finally, synchronization and signals are detected by comparing the calculated delay correlation vector with a second threshold value.

6. 发明申请

US20130044684A1 APPARATUS AND METHOD FOR CONTROLLING COMMUNICATION PATH BETWEEN MULTIPLE DIGITAL UNITS AND MULTIPLE RADIO FREQUENCY UNITS IN WIRELESS COMMUNICATION SYSTEM 有权
标题翻译：用于控制无线通信系统中的多个数字单元和多个无线电频率单元之间的通信路径的装置和方法
公开(公告)号：US20130044684A1
公开(公告)日：2013-02-21
申请号：US13565832
申请日：2012-08-03
申请人： Hoon LEE , Seungjae BAHNG , Jun Woo KIM , Youn Ok PARK
发明人： Hoon LEE , Seungjae BAHNG , Jun Woo KIM , Youn Ok PARK
IPC分类号： H04W40/02
CPC分类号： H04W40/06 , H04W28/04 , H04W80/04 , H04W88/08
摘要： The present invention relates to a communication path control apparatus for controlling a communication path between a plurality of DUs and a plurality of RFUs, and a plurality of antennas included in the plurality of RFUs and a wireless communication system including the communication path control apparatus. Each of the plurality of DUs, the plurality of RFUs, and the plurality of antennas has a unique identifier, and the path control apparatus controls paths between the plurality of DUs and the plurality of RFUs based on identifiers. Accordingly, the wireless communication system can transmit and receive a signal through a specific RFU and a specific antenna included in a specific RFU and performs the next-generation wireless BS operation method, such as CoMP and multi-BS MIMO.
摘要翻译：本发明涉及一种用于控制多个DU与多个RFU之间的通信路径的通信路径控制装置，以及包括在多个RFU中的多个天线以及包括通信路径控制装置的无线通信系统。多个DU，多个RFU和多个天线中的每一个具有唯一的标识符，并且路径控制装置基于标识符来控制多个DU与多个RFU之间的路径。因此，无线通信系统可以通过特定RFU中包含的特定RFU和特定天线来发送和接收信号，并且执行诸如CoMP和多BS MIMO的下一代无线BS操作方法。

7. 发明申请

US20100142661A1 DEVICE FOR GAIN CONTROL AND METHOD FOR RECEIVING SIGNAL 有权
标题翻译：用于增益控制的装置和接收信号的方法
公开(公告)号：US20100142661A1
公开(公告)日：2010-06-10
申请号：US12510120
申请日：2009-07-27
申请人： Hoon LEE , Young Jo BANG , Seungjae BAHNG , Youn Ok PARK
发明人： Hoon LEE , Young Jo BANG , Seungjae BAHNG , Youn Ok PARK
IPC分类号： H04B1/06 , H04L27/08
CPC分类号： H03G3/3052
摘要： The present invention relates to a device for gain control and a method for receiving a signal. The device for gain control according to the present invention includes a map interpreter that detects beamforming symbol periods in wireless signals, a power calculator that calculate the average power of the beamforming symbol periods in response to outputs of the map interpreter, a gain calculator that calculates gain control signals on the basis of the output signals of the power calculator, and a switch that outputs gains from the gain control signals, in which the wireless signals are corrected on the basis of the gains.
摘要翻译：本发明涉及一种用于增益控制的装置和一种接收信号的方法。根据本发明的用于增益控制的装置包括：地图解释器，其检测无线信号中的波束成形符号周期;功率计算器，其响应于地图解释器的输出计算波束成形符号周期的平均功率;计算增益计算器基于功率计算器的输出信号的增益控制信号和从增益控制信号输出增益的开关，其中基于增益来校正无线信号。

8. 发明申请

US20100142654A1 METHOD AND APPARATUS FOR SIGNAL DETECTION BASED ON MMSE IN MIMO COMMUNICATION SYSTEM 有权
标题翻译：基于MIMO通信系统MMSE信号检测的方法与装置
公开(公告)号：US20100142654A1
公开(公告)日：2010-06-10
申请号：US12629433
申请日：2009-12-02
申请人： Young Jo BANG , Young Ha LEE , Jung Pil CHOI , Hoon LEE , Seungjae BAHNG , Youn Ok PARK , Il Min KIM
发明人： Young Jo BANG , Young Ha LEE , Jung Pil CHOI , Hoon LEE , Seungjae BAHNG , Youn Ok PARK , Il Min KIM
IPC分类号： H04L27/06
CPC分类号： H04L25/0321 , H04L27/34 , H04L2025/03426
摘要： In a multi-input multi-output communication system receiving signals transmitted through a plurality of transmission antennas by using a plurality of reception antennas, a matrix determining a position of a symbol to be detected from a received signal is calculated at a first symbol detection step, and from the subsequent step, a matrix at the current step is acquired through a simple relationship from the matrix calculated at the previous step to determine a position of a symbol to be detected.
摘要翻译：在通过使用多个接收天线接收通过多个发送天线发送的信号的多输入多输出通信系统中，在第一符号检测步骤中计算从接收信号确定要检测的符号的位置的矩阵，并且从后续步骤，通过从在前一步骤计算的矩阵的简单关系获取当前步骤中的矩阵，以确定要检测的符号的位置。

9. 发明申请

US20090147892A1 METHOD AND APPARATUS FOR CANCELING INTERFERENCE 有权
标题翻译：消除干扰的方法和装置
公开(公告)号：US20090147892A1
公开(公告)日：2009-06-11
申请号：US12204464
申请日：2008-09-04
申请人： Hoon LEE , Chang Wahn YU , Youn Ok PARK
发明人： Hoon LEE , Chang Wahn YU , Youn Ok PARK
IPC分类号： H04B1/10
CPC分类号： H04L25/03159 , H04L27/2647
摘要： An apparatus for canceling interference includes a plurality of converters, a plurality of interference cancellation units, a plurality of variance detectors, and an output selecting unit. The plurality of converters converts a plurality of received signals to a plurality of frequency domain signals, respectively. The plurality of interference cancellation units cancel interference in the plurality of frequency domain signals using a plurality of interference cancellation schemes to generate a plurality of interference-canceled signals corresponding to the plurality of interference cancellation schemes, respectively. The plurality of variance detectors measure a plurality of amounts of residual interference corresponding to the plurality of interference-canceled signals, respectively. The output selecting unit selects a single interference-canceled signal with the least amount of residual interference from the plurality of interference-canceled signals, based on the plurality of amounts of residual interference.
摘要翻译：用于消除干扰的装置包括多个转换器，多个干扰消除单元，多个方差检测器和输出选择单元。多个转换器将多个接收信号分别转换成多个频域信号。多个干扰消除单元使用多个干扰消除方案来消除多个频域信号中的干扰，以分别产生与多个干扰消除方案对应的多个干扰消除信号。多个方差检测器分别测量与多个干扰消除信号相对应的多个残余干扰量。输出选择单元基于多个残留干扰量从多个干扰消除信号中选择具有最小残留干扰量的单个干扰消除信号。

10. 发明申请

US20090154540A1 METHOD AND APPARATUS FOR ESTIMATING CHANNEL IN MOBILE COMMUNICATION NETWORK 有权
标题翻译：用于估计移动通信网络中的信道的方法和装置
公开(公告)号：US20090154540A1
公开(公告)日：2009-06-18
申请号：US12212433
申请日：2008-09-17
申请人： Chang Wahn YU , Kyung-Yeol SOHN , Hyuk Jun OH , Youn Ok PARK
发明人： Chang Wahn YU , Kyung-Yeol SOHN , Hyuk Jun OH , Youn Ok PARK
IPC分类号： H04B3/46
CPC分类号： H04L25/0244 , H04L5/0007 , H04L5/0048 , H04L25/0228
摘要： The present invention relates to a method and apparatus for estimating a channel in a mobile communication network. In particular, the present invention relates to a method of estimating a channel under a channel environment where interference between neighboring base stations exists in a mobile communication network using an orthogonal frequency division multiplexing (OFDM) method. In order to estimate a channel, one cluster is divided into two sub-clusters, and pilot sub-carrier signals included in at least one sub-cluster in an OFDM symbol direction are used. Therefore, it is possible to further improve performance as compared to a method of estimating a channel by using pilot sub-carriers included in one cluster.
摘要翻译：本发明涉及一种用于估计移动通信网络中的信道的方法和装置。具体地说，本发明涉及一种使用正交频分复用（OFDM）方法估计在移动通信网络中存在相邻基站之间的干扰的信道环境下的信道的方法。为了估计信道，一个簇被划分成两个子簇，并且使用包括在OFDM符号方向上的至少一个子簇中的导频子载波信号。因此，与通过使用包括在一个簇中的导频子载波来估计信道的方法相比，可以进一步提高性能。

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