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：US20090215390A1

公开(公告)日：2009-08-27

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： H04B7/165

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：US08223960B2

公开(公告)日：2012-07-17

申请号：US12328738

申请日：2008-12-04

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

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

IPC分类号： H04M9/08 ,  H04B7/14 ,  H04B1/44 ,  H04B3/20

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 are provided. A signal transmission/reception apparatus determines an echo channel impulse response using a reception signal, generates an echo signal removing coefficient using the echo channel impulse response, removes an echo signal from the reception signal using the echo signal removing coefficient, and transmits a signal in which the echo signal is removed.

摘要翻译： 提供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/接收装置使用接收信号确定回波信道脉冲响应，使用回波信道脉冲响应产生回波信号去除系数，使用回波信号去除系数从接收信号中去除回波信号，并将信号发送到 回波信号被去除。

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：US08315257B2

公开(公告)日：2012-11-20

申请号：US12274129

申请日：2008-11-19

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： H04L12/28 ,  H04L12/56

CPC分类号： H04L1/0067 ,  H04L1/08 ,  H04W28/06

摘要： An apparatus and method for transmitting a voice packet in a wireless communication network are provided. The method includes generating voice data of a fixed length, which includes a voice packet having a length that is determined according to a rate of the voice packet, and a Forward Error Correction (FEC) code, and transmitting the generated voice data through a fixed resource.

摘要翻译： 提供了一种用于在无线通信网络中发送语音分组的装置和方法。 该方法包括生成固定长度的语音数据，其包括具有根据语音分组的速率确定的长度的语音分组和前向纠错（FEC）码，并且通过固定的 资源。

公开(公告)号：US08923376B2

公开(公告)日：2014-12-30

申请号：US13012963

申请日：2011-01-25

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

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

IPC分类号： H04B3/46 ,  H04B17/00

CPC分类号： H04B17/005 ,  H04B17/345

摘要： An apparatus and a method for estimating a Noise and Interference (NI) power in a communication system are provided. The method includes, calculating average values of impulse responses according to ranging codes, through use of a ranging signal sequence received through a resource allocated to a ranging channel, arranging the average values of the impulse responses according to ranging codes in order of the highest value to the lowest value, and multiplying a ranging code, which corresponds to an impulse response having an (x+1)th peak value among the arranged average values of the impulse responses, by a specific threshold value, and estimating the NI power, wherein “x” represents a number of ranging codes which can be simultaneously received by one ranging channel.

摘要翻译： 提供了一种用于估计通信系统中的噪声和干扰（NI）功率的装置和方法。 该方法包括：通过使用通过分配给测距信道的资源接收到的测距信号序列，根据测距码来计算脉冲响应的平均值，根据测距码按照最高值的顺序排列脉冲响应的平均值 将与脉冲响应的排列的平均值之间具有第（x + 1）个峰值的脉冲响应相对应的测距码乘以特定阈值，并估计NI功率，其中， “x”表示可由一个测距信道同时接收的测距码数。

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：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：US20110173518A1

公开(公告)日：2011-07-14

申请号：US13004574

申请日：2011-01-11

申请人： Min-Ho Jang ,  Hwa-Sun You ,  Hee-Won Kang

发明人： Min-Ho Jang ,  Hwa-Sun You ,  Hee-Won Kang

IPC分类号： H03M13/23 ,  G06F11/10

CPC分类号： H04L1/005 ,  H03M13/3738 ,  H03M13/413 ,  H03M13/4138 ,  H03M13/6544 ,  H04L1/0045 ,  H04L1/0066

摘要： A method and apparatus for determining the reliability of decoded data in a communication system. The method includes calculating a total sum of absolute values corresponding to Log Likelihood Ratio (LLR) values of received data, generating a first value obtained by multiplying the total sum of the absolute values by a predetermined threshold value, performing iterative decoding with respect to the LLR values of the received data, generating a survived path metric value having a maximum value among all path metric values as a decoded result and generating decoded data, comparing the first value with the survived path metric value, and determining whether the decoded data has suitable reliability according to the compared result.

摘要翻译： 一种用于确定通信系统中解码数据的可靠性的方法和装置。 该方法包括：计算对应于接收数据的对数似然比（LLR）值的绝对值的总和，生成通过将绝对值的总和乘以预定阈值而获得的第一值，执行相对于 将所接收的数据的LLR值生成作为解码结果的所有路径量度值中具有最大值的幸存路径量度值，并生成解码数据，将所述第一值与所述存活路径量度值进行比较，以及确定所解码的数据是否具有适当的 可靠性根据比较结果。