公开(公告)号：US08638882B2

公开(公告)日：2014-01-28

申请号：US13369595

申请日：2012-02-09

申请人： Hyo-Yol Park ,  Yon-Woo Yoon ,  Hwa-Sun You ,  Hee-Won Kang

发明人： Hyo-Yol Park ,  Yon-Woo Yoon ,  Hwa-Sun You ,  Hee-Won Kang

IPC分类号： H03K9/00

CPC分类号： H04L27/2657 ,  H04L27/2662 ,  H04L27/2675

摘要： A method and an apparatus for estimating an offset are provided. The method includes determining one of a frequency offset and a timing offset to be estimated first for pilot symbols detected from a received signal, estimating one of the frequency offset and the timing offset for the pilot symbols according to the determination, compensating for an offset of the pilot symbols based on the estimated offset, and estimating remaining one of the frequency offset and the timing offset which is not estimated for the offset compensated pilot symbols.

摘要翻译： 提供了一种用于估计偏移的方法和装置。 该方法包括确定要从接收信号检测的导频符号首先估计的频率偏移和定时偏移中的一个，根据确定估计导频符号的频率偏移和定时偏移中的一个，补偿导频符号的偏移 基于所估计的偏移量的导频符号，以及估计未针对偏移补偿导频符号估计的频率偏移和定时偏移中的剩余一个。

公开(公告)号：US20120207254A1

公开(公告)日：2012-08-16

申请号：US13397257

申请日：2012-02-15

申请人： Si-Hyun Park ,  Yon-Woo Yoon ,  Hwa-Sun You ,  Hee-Won Kang

发明人： Si-Hyun Park ,  Yon-Woo Yoon ,  Hwa-Sun You ,  Hee-Won Kang

IPC分类号： H04L27/06

CPC分类号： H04L25/022 ,  H04L25/0224 ,  H04L25/0256 ,  H04L27/2657 ,  H04L27/2662 ,  H04L27/2695

摘要： A channel estimation method of a channel estimation apparatus in a wireless communication system is provided. The method includes predefining a plurality of weight tables about at least one of a speed and a Carrier to Interference-and-Noise Ratio (CINR) using a correlation value considering offset compensation; selecting a weight table to be used for channel estimation based on at least one of the estimated speed and the CINR, from the plurality of weight tables; and multiplying a pilot channel estimation value and the selected weight table, and performing data channel estimation.

摘要翻译： 提供了一种无线通信系统中的信道估计装置的信道估计方法。 该方法包括使用考虑偏移补偿的相关值预定义关于速度和载波与干扰和噪声比（CINR）中的至少一个的多个权重表; 基于所述估计速度和所述CINR中的至少一个从所述多个权重表中选择要用于信道估计的权重表; 并且将导频信道估计值与所选择的权重表相乘，并执行数据信道估计。

公开(公告)号：US08989312B2

公开(公告)日：2015-03-24

申请号：US13397257

申请日：2012-02-15

申请人： Si-Hyun Park ,  Yon-Woo Yoon ,  Hwa-Sun You ,  Hee-Won Kang

发明人： Si-Hyun Park ,  Yon-Woo Yoon ,  Hwa-Sun You ,  Hee-Won Kang

IPC分类号： H03K9/00 ,  H04L27/00 ,  H04L25/02 ,  H04L27/26

CPC分类号： H04L25/022 ,  H04L25/0224 ,  H04L25/0256 ,  H04L27/2657 ,  H04L27/2662 ,  H04L27/2695

摘要： A channel estimation method of a channel estimation apparatus in a wireless communication system is provided. The method includes predefining a plurality of weight tables about at least one of a speed and a Carrier to Interference-and-Noise Ratio (CINR) using a correlation value considering offset compensation; selecting a weight table to be used for channel estimation based on at least one of the estimated speed and the CINR, from the plurality of weight tables; and multiplying a pilot channel estimation value and the selected weight table, and performing data channel estimation.

摘要翻译： 提供了一种无线通信系统中的信道估计装置的信道估计方法。 该方法包括使用考虑偏移补偿的相关值预定义关于速度和载波与干扰和噪声比（CINR）中的至少一个的多个权重表; 基于所述估计速度和所述CINR中的至少一个从所述多个权重表中选择要用于信道估计的权重表; 并且将导频信道估计值与所选择的权重表相乘，并执行数据信道估计。

公开(公告)号：US20120087447A1

公开(公告)日：2012-04-12

申请号：US13249039

申请日：2011-09-29

申请人： Yon-Woo Yoon ,  Hee-Won Kang

发明人： Yon-Woo Yoon ,  Hee-Won Kang

IPC分类号： H04L27/06

CPC分类号： H04L27/2657 ,  H04L27/2675

摘要： An apparatus and method estimate a high speed frequency offset in a wireless communication system. The apparatus includes a correlator, an accumulator, a phase calculator, and a frequency offset coupler. The correlator performs a first correlation and a second correlation based on a first reference signal and a second reference signal. The accumulator accumulates results of the correlations. The phase calculator calculates a first phase and a second phase from the accumulated first correlation value and the accumulated second correlation value. The frequency offset coupler determines whether a frequency offset deviates from a frequency offset estimate range based on a difference between the first phase and the second phase, and compensates the frequency offset according to the determination result. The apparatus can estimate a frequency offset within an error allowable range under an environment where a terminal moves at high speed.

摘要翻译： 一种装置和方法估计无线通信系统中的高速频率偏移。 该装置包括相关器，累加器，相位计算器和频率偏移耦合器。 相关器基于第一参考信号和第二参考信号执行第一相关和第二相关。 累加器累加相关结果。 相位计算器根据积累的第一相关值和累积的第二相关值计算第一相位和第二相位。 频率偏移耦合器基于第一相位和第二相位之间的差异来确定频率偏移是否偏离频率偏移估计范围，并且根据确定结果来补偿频率偏移。 该设备可以在终端以高速移动的环境下估计误差允许范围内的频率偏移。

公开(公告)号：US20120176913A1

公开(公告)日：2012-07-12

申请号：US13349445

申请日：2012-01-12

申请人： Yon-Woo Yoon ,  Hee-Won Kang

发明人： Yon-Woo Yoon ,  Hee-Won Kang

IPC分类号： H04W24/00 ,  H04L12/26

CPC分类号： H04L27/2657 ,  H04L5/0048 ,  H04L5/0057 ,  H04L25/0204 ,  H04L2025/03414

摘要： An apparatus and method estimate frequency offset for high speed in a wireless access system. An operation of a Base Station (BS) includes performing feedback channel detection for a terminal classified as a low speed mode, and, if the feedback channel detection fails continuously by the predefined number of times, and a frequency offset estimation result using a pilot signal exceeds a threshold value, classifying the terminal as a high speed mode.

摘要翻译： 一种无线接入系统中的设备和方法来估计高速的频率偏移。 基站（BS）的操作包括对分类为低速模式的终端执行反馈信道检测，并且如果反馈信道检测连续失败预定次数，以及使用导频信号的频率偏移估计结果 超过阈值，将终端分类为高速模式。

公开(公告)号：US08675552B2

公开(公告)日：2014-03-18

申请号：US12696018

申请日：2010-01-28

申请人： Hwa-Sun You ,  Hee-Won Kang ,  Jae-Hee Cho

发明人： Hwa-Sun You ,  Hee-Won Kang ,  Jae-Hee Cho

IPC分类号： H04W4/00

CPC分类号： H04L27/2602 ,  H04L1/0068 ,  H04L1/0072 ,  H04L1/08 ,  H04L1/1607 ,  H04L1/1812 ,  H04L5/0053

摘要： An apparatus is capable of transmitting information via an uplink control channel in an Orthogonal Frequency Division Multiple Access (OFDMA) communication system. Uplink control information is encoded to obtain a predetermined bit string. A signal sequence corresponding to the predetermined bit string is generated. The signal sequence is cyclic-shifted according to a predetermined rule. The cyclic-shifted signal sequence is controlled according to a subframe length. Therefore, reception performance deterioration of an uplink control channel allocated to an irregular subframe can be minimized.

摘要翻译： 一种装置能够通过正交频分多址（OFDMA）通信系统中的上行链路控制信道发送信息。 上行链路控制信息被编码以获得预定的位串。 产生与预定位串对应的信号序列。 信号序列根据预定的规则循环移位。 根据子帧长度来控制循环移位信号序列。 因此，分配给不规则子帧的上行链路控制信道的接收性能恶化可以最小化。

公开(公告)号：US08121654B2

公开(公告)日：2012-02-21

申请号：US12324506

申请日：2008-11-26

申请人： Hwa-Sun You ,  Jae-Bum Kim ,  Hee-Won Kang ,  Jung-Woo Ku

发明人： Hwa-Sun You ,  Jae-Bum Kim ,  Hee-Won Kang ,  Jung-Woo Ku

IPC分类号： H04B15/00

CPC分类号： H04B3/23 ,  H04B7/15585

摘要： A method and apparatus for removing an echo signal in a signal transmission/reception apparatus of a communication system is provided. A signal transmission/reception apparatus estimates an input channel response using a training sequence, generates a first signal by removing the input channel response from a first reception signal, detects an echo channel impulse response using the first signal, detects an echo signal removing coefficient using the echo channel impulse response, generates a second signal in which an echo signal is removed by applying the echo signal removing coefficient to a second reception signal, and removes the second signal from a third signal, wherein the first signal is received prior to receiving the second signal and the second signal is received prior to receiving the third signal.

摘要翻译： 提供了一种用于消除通信系统的信号发送/接收装置中的回波信号的方法和装置。 信号发送/接收装置使用训练序列估计输入信道响应，通过从第一接收信号中去除输入信道响应来产生第一信号，使用第一信号检测回波信道脉冲响应，使用 回波信道脉冲响应产生通过将回波信号去除系数应用于第二接收信号而去除回波信号的第二信号，并从第三信号中去除第二信号，其中在接收第一信号之前接收第一信号 第二信号，并且在接收第三信号之前接收第二信号。

公开(公告)号：US08050621B2

公开(公告)日：2011-11-01

申请号：US12391878

申请日：2009-02-24

申请人： Jung-Woo Ku ,  Jae-Bum Kim ,  Hee-Won Kang ,  Hwa-Sun You

发明人： Jung-Woo Ku ,  Jae-Bum Kim ,  Hee-Won Kang ,  Hwa-Sun You

IPC分类号： H04Q7/20

CPC分类号： H04B7/15585

摘要： A method and an apparatus are provided for estimating and removing interference of a signal at a wireless repeater operating in a multi-carrier system. In the method, a current echo channel linear prediction coefficient, which represents a coefficient between a current train signal section and a previous train signal section, is estimated using a current echo channel coefficient estimated in the current train signal section and a previous echo channel coefficient generated in the previous train signal section. A next echo channel coefficient is estimated using the current echo channel coefficient, the previous echo channel coefficient, and the current echo channel linear prediction coefficient. An echo channel coefficient outside a train signal section is estimated using the current echo channel coefficient and the next echo channel coefficient.

摘要翻译： 提供一种用于估计和去除在多载波系统中操作的无线中继器处的信号的干扰的方法和装置。 在该方法中，使用在当前列车信号部分中估计的当前回波信道系数和先前的回波信道系数来估计表示当前列车信号部分与前一列车信号部分之间的系数的当前回波信道线性预测系数 在先前的列车信号部分生成。 使用当前回波信道系数，先前的回波信道系数和当前回波信道线性预测系数来估计下一个回波信道系数。 使用当前回波信道系数和下一个回波信道系数来估计列车信号部分外的回波信道系数。

公开(公告)号：US08873472B2

公开(公告)日：2014-10-28

申请号：US12258918

申请日：2008-10-27

申请人： Hee-Won Kang ,  Hwa-Sun You ,  Young-Bo Cho

发明人： Hee-Won Kang ,  Hwa-Sun You ,  Young-Bo Cho

IPC分类号： H04W4/00 ,  H04W72/00 ,  H04W72/04

CPC分类号： H04W72/042 ,  H04W72/10

摘要： A method and system for allocating resources in a communication system are provided. The system includes a Base Station (BS) for allocating persistent resources included in a persistent resource area to one or more a Mobile Stations (MS) using the persistent resource area, for allocating an Identifier (ID) indicating an allocation order of the persistent resources to each of the one or more the MS using the persistent resource area, for transmitting resource allocation information including the ID and the number of slots included in the persistent resources to each of the one or more MSs using the persistent resource area, and for allocating dynamic resources to one or more MSs using a dynamic resource area, after the persistent resource allocation is completed for all of the one or more MSs using the persistent resource area. The persistent resource area includes successive persistent resources along a time axis and along a frequency axis.

摘要翻译： 提供了一种在通信系统中分配资源的方法和系统。 该系统包括基站（BS），用于使用所述持久资源区域将包括在持久资源区域中的持久资源分配给一个或多个移动站（MS），用于分配指示所述持久资源的分配顺序的标识符（ID） 使用所述持久性资源区域对所述一个或多个所述MS中的每一个，使用所述持久资源区域向所述一个或多个MS中的每一个发送包括所述持久资源中的ID和所述时隙数量的资源分配信息，并且用于分配 在使用持久资源区域的所有一个或多个MS的持续资源分配完成之后，使用动态资源区域的一个或多个MS的动态资源。 持续资源区域包括沿着时间轴和频率轴的连续的持久资源。

公开(公告)号：US08755464B2

公开(公告)日：2014-06-17

申请号：US13371326

申请日：2012-02-10

申请人： Si-Hyun Park ,  Hwa-Sun You ,  Hee-Won Kang

发明人： Si-Hyun Park ,  Hwa-Sun You ,  Hee-Won Kang

IPC分类号： H03K9/00

CPC分类号： H04L27/265 ,  H04L25/022 ,  H04L25/0224 ,  H04L25/0256

摘要： A method and apparatus for performing channel estimation in a wireless communication system, in which a channel estimate of each pilot tone included in adjacent first and second resource allocation blocks is calculated. Channel estimates of first pilot tones are detected, which have a predetermined subcarrier spacing or less from the second resource allocation block, channel estimates of second pilot tones are detected; and which have a predetermined subcarrier spacing or less from the first resource allocation block. The channel estimates of the first and second pilot tones are updated, and channel estimation is then performed using the updated channel estimates.

摘要翻译： 一种用于在无线通信系统中执行信道估计的方法和装置，其中计算包括在相邻第一和第二资源分配块中的每个导频音调的信道估计。 检测到与第二资源分配块具有预定子载波间隔的第一导频音的信道估计，检测到第二导频音的信道估计; 并且与第一资源分配块具有预定的子载波间隔或更小。 更新第一和第二导频音调的信道估计，然后使用更新的信道估计来执行信道估计。