公开(公告)号：US08290495B2

公开(公告)日：2012-10-16

申请号：US12660463

申请日：2010-02-26

申请人： Goo-Hyun Park ,  Sung-Kwon Jo

发明人： Goo-Hyun Park ,  Sung-Kwon Jo

IPC分类号： H04W36/00

CPC分类号： H04B7/01

摘要： A base station is capable of performing a method for velocity estimation in a mobile communication system. In the velocity estimation method, a received signal is delayed by a plurality of different sample intervals. A candidate maximum Doppler frequency for each of the delayed received signals is estimated. A maximum Doppler frequency in a reliable period is selected among the candidate maximum Doppler frequencies.

摘要翻译： 基站能够执行移动通信系统中的速度估计方法。 在速度估计方法中，接收信号被延迟多个不同的采样间隔。 估计每个延迟接收信号的候选最大多普勒频率。 在候选最大多普勒频率中选择可靠时段中的最大多普勒频率。

公开(公告)号：US20080207250A1

公开(公告)日：2008-08-28

申请号：US12072078

申请日：2008-02-22

申请人： Goo-Hyun Park ,  Sung-Kwon Jo ,  Ji-Hoon Choi

发明人： Goo-Hyun Park ,  Sung-Kwon Jo ,  Ji-Hoon Choi

IPC分类号： H04B7/005 ,  H04B7/26

CPC分类号： H04W52/221 ,  H04W52/146 ,  H04W52/241 ,  H04W52/245

摘要： An uplink power control method of a base station (BS) in a m obile communication system is provided. The method includes rece iving a signal from a terminal; calculating an RSQI value using t he signal and previous power control information; comparing the R SQI with a threshold; determining power control information after the comparison; sending the power control information to the ter minal.

摘要翻译： 提供了一种在通信系统中的基站（BS）的上行链路功率控制方法。 该方法包括从终端接收信号; 使用信号和先前的功率控制信息计算RSQI值; 将R SQI与阈值进行比较; 确定比较后的功率控制信息; 将功率控制信息发送到终端。

公开(公告)号：US20100216406A1

公开(公告)日：2010-08-26

申请号：US12660463

申请日：2010-02-26

申请人： Goo-Hyun Park ,  Sung-Kwon Jo

发明人： Goo-Hyun Park ,  Sung-Kwon Jo

IPC分类号： H04B17/00

CPC分类号： H04B7/01

摘要： A base station is capable of performing a method for velocity estimation in a mobile communication system. In the velocity estimation method, a received signal is delayed by a plurality of different sample intervals. A candidate maximum Doppler frequency for each of the delayed received signals is estimated. A maximum Doppler frequency in a reliable period is selected among the candidate maximum Doppler frequencies.

摘要翻译： 基站能够执行移动通信系统中的速度估计方法。 在速度估计方法中，接收到的信号被延迟多个不同的采样间隔。 估计每个延迟接收信号的候选最大多普勒频率。 在候选最大多普勒频率中选择可靠时段中的最大多普勒频率。

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：US08498353B2

公开(公告)日：2013-07-30

申请号：US13485568

申请日：2012-05-31

申请人： Jae-Hyok Lee ,  Jae-Ho Jeon ,  Sung-Kwon Jo

发明人： Jae-Hyok Lee ,  Jae-Ho Jeon ,  Sung-Kwon Jo

IPC分类号： H04B7/02

CPC分类号： H04L27/2608 ,  H04B7/028 ,  H04L5/023

摘要： A cyclic delay diversity (CDD) technique in a multiple-antenna broadband wireless communication system is provided. An apparatus in the multiple-antenna broadband wireless communication system includes: a controller for selecting at least one sub-carrier to which CDD is applied; at least one shifter for shifting a phase of a signal mapped to the at least one selected sub-carrier; and an operator for converting the signal, which is mapped to the at least one selected sub-carrier and whose phase is shifted, and other signals mapped to the remaining sub-carriers into time-domain signals.

摘要翻译： 提供了一种多天线宽带无线通信系统中的循环延迟分集（CDD）技术。 多天线宽带无线通信系统中的装置包括：控制器，用于选择应用了CDD的至少一个子载波; 至少一个移位器，用于移位映射到所述至少一个所选子载波的信号的相位; 以及用于将映射到所述至少一个选择的子载波并且其相位被移位的信号以及映射到其余子载波的其他信号转换成时域信号的运算符。

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。