公开(公告)号：US08416674B2

公开(公告)日：2013-04-09

申请号：US12967417

申请日：2010-12-14

申请人： Joo-Hyun Lee ,  Sung-Kwon Jo ,  Ha-Young Yang ,  Myung-Kwang Byun

发明人： Joo-Hyun Lee ,  Sung-Kwon Jo ,  Ha-Young Yang ,  Myung-Kwang Byun

IPC分类号： H04J9/00 ,  H04J11/00

CPC分类号： H04B7/0854 ,  H04L25/022 ,  H04L25/03159 ,  H04L25/03292 ,  H04L27/2636 ,  H04L27/2649 ,  H04L2025/03414

摘要： A method and an apparatus for receiving a Minimum Mean-Squared-Error (MMSE) in a Single-Carrier Frequency Division Multiple Access (SC-FDMA) system is provided. The method includes, transforming a signal in a time domain received through an antenna into a signal in a frequency domain, and discriminating between bands respectively allocated to terminals in a frequency domain, estimating a channel and computing a weight value from the signal transformed into the frequency domain, and detecting an MMSE, computing a time-domain bias from the weight value and a channel estimation value of the signal transformed into the frequency domain, normalizing the detected MMSE by using the computed time-domain bias, and transforming the normalized signal into a normalized signal in a time domain, decoding the normalized signal transformed to the time domain, and transmitting the decoded normalized signal transformed into the time domain to each of the terminals.

摘要翻译： 提供了一种用于在单载波频分多址（SC-FDMA）系统中接收最小均方误差（MMSE）的方法和装置。 该方法包括：将通过天线接收的时域中的信号变换为频域中的信号，以及区分分配给频域中的终端的频带，估计信道，并从转换为 频域，并且检测MMSE，从加权值计算时域偏差和变换到频域的信号的信道估计值，通过使用计算出的时域偏差对检测到的MMSE进行归一化，并且将归一化信号 在时域中变换为归一化信号，对被变换为时域的归一化信号进行解码，并将转换成时域的解码归一化信号发送到各终端。

公开(公告)号：US09240771B2

公开(公告)日：2016-01-19

申请号：US13368656

申请日：2012-02-08

申请人： Joo-Hyun Lee ,  Sung-Kwon Jo ,  Ha-Young Yang

发明人： Joo-Hyun Lee ,  Sung-Kwon Jo ,  Ha-Young Yang

IPC分类号： H03H17/06 ,  H04B1/00

CPC分类号： H03H17/0685 ,  H03H17/0628 ,  H04B1/0017 ,  H04B1/0021

摘要： A method of generating a signal having a converted sampling rate in a communication system is provided. The method includes selecting effective input samples among S number of input samples included in an input stream corresponding to an input sampling rate, generating a filter coefficient set including filter coefficients having a length of a second tap, the filter coefficients having the length of the second tap being generated by dividing a filter coefficient having a length of a first tap configuring a low-pass filter into the filter coefficients having the length of the second tap corresponding to a number of selected effective input samples, selecting filter coefficients corresponding to each of the effective input samples among the filter coefficients included in the filter coefficient set, and outputting output samples having an output sampling rate which is converted from the input sampling rate.

摘要翻译： 提供一种在通信系统中产生具有转换采样率的信号的方法。 该方法包括：选择包含在与输入采样率相对应的输入流中的S个输入样本之间的有效输入样本，生成包括具有第二抽头长度的滤波器系数的滤波器系数组，滤波器系数具有第二 通过将具有构成低通滤波器的第一抽头的长度的滤波器系数除以对应于所选择的有效输入样本的数量的具有第二抽头的长度的滤波器系数来生成抽头，选择与每个 包括在滤波器系数组中的滤波器系数中的有效输入样本，并且输出具有从输入采样率转换的输出采样率的输出采样。

公开(公告)号：US08744430B2

公开(公告)日：2014-06-03

申请号：US12380903

申请日：2009-03-05

申请人： Myung-Kwang Byun ,  Jeong-Tae Oh ,  Jae-Ho Jeon ,  Sung-Kwon Jo

发明人： Myung-Kwang Byun ,  Jeong-Tae Oh ,  Jae-Ho Jeon ,  Sung-Kwon Jo

IPC分类号： H04M1/725

CPC分类号： H04L1/0048 ,  H04B1/1027 ,  H04B17/345 ,  H04L25/0328 ,  H04L27/2647

摘要： An apparatus and method for eliminating interference in a base station (BS) of a communication system. A first BS receives a first reception signal from a first mobile station located in a cell of the first base station. A second base station being adjacent to the first base station delivers decoding information of a second reception signal to the first base station, the second reception signal received from a second mobile station located in a cell of the second base station. The first BS determines whether an error exists on the second reception signal, based on the decoding information and re-generates an interference signal using the decoding information of the second reception signal when no error exists in the second reception signal, and performing interference elimination on the first reception signal using the re-generated interference signal.

摘要翻译： 一种用于消除通信系统的基站（BS）中的干扰的装置和方法。 第一BS从位于第一基站的小区中的第一移动台接收第一接收信号。 与第一基站相邻的第二基站向第一基站传送第二接收信号的解码信息，从位于第二基站的小区的第二移动台接收的第二接收信号。 第一BS基于解码信息确定第二接收信号是否存在错误，并且当在第二接收信号中没有错误时，使用第二接收信号的解码信息重新产生干扰信号，并对 第一接收信号使用重新产生的干扰信号。

公开(公告)号：US08554152B2

公开(公告)日：2013-10-08

申请号：US12976054

申请日：2010-12-22

申请人： Hyo-Chul Kwak ,  Myung-Kwang Byun ,  Yu-Suk Yun ,  Sung-Kwon Jo

发明人： Hyo-Chul Kwak ,  Myung-Kwang Byun ,  Yu-Suk Yun ,  Sung-Kwon Jo

IPC分类号： H04B17/00

CPC分类号： H04B17/345

摘要： An apparatus and a method for estimating a channel in a mobile communication system are provided. The apparatus includes a channel estimation unit for determining a channel estimation value using a channel power for each of a plurality of fingers, and a noise estimation unit for selecting a scheme for estimating a thermal noise power according to a channel environment among schemes for determining a plurality of thermal noise powers, and for estimating a noise using the channel estimation value in the selected scheme.

摘要翻译： 提供了一种用于估计移动通信系统中的信道的装置和方法。 该装置包括：信道估计单元，用于使用多个指状物中的每一个的信道功率来确定信道估计值;噪声估计单元，用于根据信道环境选择用于估计热噪声功率的方案，用于确定 多个热噪声功率，并且用于使用所选择的方案中的信道估计值来估计噪声。

公开(公告)号：US08280320B2

公开(公告)日：2012-10-02

申请号：US12708926

申请日：2010-02-19

申请人： Ki-Hwan Hwang ,  Myung-Kwang Byun ,  Sung-Kwon Jo

发明人： Ki-Hwan Hwang ,  Myung-Kwang Byun ,  Sung-Kwon Jo

IPC分类号： H03C7/02 ,  H04B1/02 ,  H04B7/02

CPC分类号： H04B7/0671 ,  H04B7/0617

摘要： An apparatus and a method for simultaneously supporting Multiple-Input Multiple-Output (MIMO) and beamforming in a wireless communication system are provided. In the method, two data streams are mapped to each of all of 2N transmission antennas; the two data streams are multiplied by different Cyclic Delay Diversity (CDD) phase sequences; the two data streams multiplied by the different CDD phase sequences for each transmission antenna are added; and the added data stream is multiplied by a beamforming coefficient and transmitted for each transmission antenna.

摘要翻译： 提供了一种在无线通信系统中同时支持多输入多输出（MIMO）和波束成形的装置和方法。 在该方法中，将两个数据流映射到2N个发送天线中的每一个; 两个数据流被不同的循环延迟分集（CDD）相序相乘; 加上与每个发送天线不同的CDD相位序列相乘的两个数据流; 并将相加的数据流乘以波束形成系数，并为每个发射天线发射。

公开(公告)号：US20120113973A1

公开(公告)日：2012-05-10

申请号：US13288762

申请日：2011-11-03

申请人： Hyun-Cheol Kim ,  Sung-Kwon Jo ,  Myung-Kwang Byun

发明人： Hyun-Cheol Kim ,  Sung-Kwon Jo ,  Myung-Kwang Byun

IPC分类号： H04B7/216 ,  H04B15/00 ,  H04W24/00 ,  H04B17/00

CPC分类号： H04L25/0202 ,  H04B1/71072 ,  H04B2001/70724 ,  H04L25/0212 ,  H04L25/0256

摘要： A method and an apparatus apply an adaptive weight in a wireless communication system. In the method, channel estimation is performed. A weighting factor that reduces a Mean Square Error (MSE) is determined with respect to a channel in a specific section. A channel estimate value is multiplied by the weighting factor.

摘要翻译： 一种方法和装置在无线通信系统中应用自适应权重。 在该方法中，执行信道估计。 相对于特定部分中的通道确定减小均方误差（MSE）的加权因子。 信道估计值乘以加权因子。

公开(公告)号：US08140122B2

公开(公告)日：2012-03-20

申请号：US12660432

申请日：2010-02-26

申请人： Byung-Joon Park ,  Myung-Kwang Byun ,  Jeong-Tae Oh ,  Sung-Kwon Jo

发明人： Byung-Joon Park ,  Myung-Kwang Byun ,  Jeong-Tae Oh ,  Sung-Kwon Jo

IPC分类号： H04B1/38 ,  H04M1/00

CPC分类号： H04B7/0689 ,  H04W52/12 ,  H04W52/20 ,  H04W52/241 ,  H04W52/42

摘要： An apparatus and a method for determining a multi-antenna transmission mode at a base station in a multi-antenna system are provided. The method for determining the multi-antenna transmission mode includes when using a Multiple Input Multiple Output (MIMO) transmission mode as a multi-antenna transmission mode, determining a reference set point; updating a set point for transmit power control of a terminal according to an error occurrence of a signal received from the terminal; determining whether a channel to the terminal is a channel for applying the MIMO transmission mode by comparing the updated set point with the reference set point; and when the channel to the terminal is not a channel for applying the MIMO transmission mode, changing the multi-antenna transmission mode to a fixed transmission mode.

摘要翻译： 提供了一种用于在多天线系统中的基站处确定多天线传输模式的装置和方法。 用于确定多天线传输模式的方法包括当使用多输入多输出（MIMO）传输模式作为多天线传输模式时，确定参考设定点; 根据从终端接收的信号的错误发生更新终端的发射功率控制的设定点; 确定到所述终端的信道是否是通过将所述更新的设定点与所述参考设定点进行比较来应用所述MIMO传输模式的信道; 并且当到终端的信道不是用于应用MIMO传输模式的信道时，将多天线传输模式改变为固定传输模式。

公开(公告)号：US10237093B2

公开(公告)日：2019-03-19

申请号：US13288762

申请日：2011-11-03

申请人： Hyun-Cheol Kim ,  Sung-Kwon Jo ,  Myung-Kwang Byun

发明人： Hyun-Cheol Kim ,  Sung-Kwon Jo ,  Myung-Kwang Byun

IPC分类号： H04B1/707 ,  H04L25/02 ,  H04B1/7107

摘要： A method and an apparatus apply an adaptive weight in a wireless communication system. In the method, channel estimation is performed. A weighting factor that reduces a Mean Square Error (MSE) is determined with respect to a channel in a specific section. A channel estimate value is multiplied by the weighting factor.

公开(公告)号：US08781516B2

公开(公告)日：2014-07-15

申请号：US13207757

申请日：2011-08-11

申请人： Yu-Suk Yun ,  Sung-Kwon Jo ,  Jong-Hyeuk Lee ,  Myung-Kwang Byun

发明人： Yu-Suk Yun ,  Sung-Kwon Jo ,  Jong-Hyeuk Lee ,  Myung-Kwang Byun

IPC分类号： H04B7/00

CPC分类号： H04W52/60 ,  H04W52/26 ,  H04W52/286

摘要： Uplink power control in a broadband wireless access system is provided. A Base Station (BS) includes a controller, a first generator, a second generator, and a modulator/demodulator (modem). The controller determines to apply one of a first power control which is slot-periodic and a second power control which is frame-periodic. The first generator generates a first power control command at a slot period using a channel quality premising a rake receiver according to the first power control. The second generator generates a second power control command at a frame period using a channel quality premising an equalizer according to the second power control, and generates a third power control command according to a predefined pattern at a slot not being able to use the channel quality. The modem transmits at least one of the first, second, and third power control commands.

摘要翻译： 提供宽带无线接入系统中的上行链路功率控制。 基站（BS）包括控制器，第一发生器，第二发生器和调制器/解调器（调制解调器）。 控制器确定施加作为帧周期性的第一功率控制和帧周期性的第二功率控制中的一个。 第一发生器使用根据第一功率控制的前置雷达接收机的信道质量在时隙周期处产生第一功率控制命令。 第二发生器使用根据第二功率控制的前置均衡器的信道质量在帧周期生成第二功率控制命令，并且在不能够使用信道质量的时隙根据预定义模式生成第三功率控制命令 。 调制解调器发送第一，第二和第三功率控制命令中的至少一个。

公开(公告)号：US20100215088A1

公开(公告)日：2010-08-26

申请号：US12660432

申请日：2010-02-26

申请人： Byung-Joon Park ,  Myung-Kwang Byun ,  Jeong-Tae Oh ,  Sung-Kwon Jo

发明人： Byung-Joon Park ,  Myung-Kwang Byun ,  Jeong-Tae Oh ,  Sung-Kwon Jo

IPC分类号： H04B17/00 ,  H04K1/10

CPC分类号： H04B7/0689 ,  H04W52/12 ,  H04W52/20 ,  H04W52/241 ,  H04W52/42

摘要： An apparatus and a method for determining a multi-antenna transmission mode at a base station in a multi-antenna system are provided. The method for determining the multi-antenna transmission mode includes when using a Multiple Input Multiple Output (MIMO) transmission mode as a multi-antenna transmission mode, determining a reference set point; updating a set point for transmit power control of a terminal according to an error occurrence of a signal received from the terminal; determining whether a channel to the terminal is a channel for applying the MIMO transmission mode by comparing the updated set point with the reference set point; and when the channel to the terminal is not a channel for applying the MIMO transmission mode, changing the multi-antenna transmission mode to a fixed transmission mode.

摘要翻译： 提供了一种用于在多天线系统中的基站处确定多天线传输模式的装置和方法。 用于确定多天线传输模式的方法包括当使用多输入多输出（MIMO）传输模式作为多天线传输模式时，确定参考设定点; 根据从终端接收的信号的错误发生更新终端的发射功率控制的设定点; 确定到所述终端的信道是否是通过将所述更新的设定点与所述参考设定点进行比较来应用所述MIMO传输模式的信道; 并且当到终端的信道不是用于应用MIMO传输模式的信道时，将多天线传输模式改变为固定传输模式。