公开(公告)号：US07936848B2

公开(公告)日：2011-05-03

申请号：US12003201

申请日：2007-12-20

申请人： Yoo-Chang Eun ,  Jeong-Soon Park ,  Soo-Bok Yeo ,  Yong-Sun Hwang ,  Jong-Han Lim

发明人： Yoo-Chang Eun ,  Jeong-Soon Park ,  Soo-Bok Yeo ,  Yong-Sun Hwang ,  Jong-Han Lim

IPC分类号： H04L27/06 ,  H03D1/00

CPC分类号： H04L25/0232 ,  H04L27/2647

摘要： An apparatus and a method for estimating a channel in a Broadband Wireless Access (BWA) communication system are provided. The apparatus includes a subcarrier demapper for extracting pilot symbols at preset positions for a channel estimation; and a channel estimator for acquiring channel estimate values of subcarriers through an Infinite Impulse Response (IIR) filtering using the pilot symbols provided from the subcarrier demapper and a preset filter factor. Thus, the channel condition can be estimated by taking into account the channel change.

摘要翻译： 提供了一种用于估计宽带无线接入（BWA）通信系统中的信道的装置和方法。 该装置包括用于在用于信道估计的预设位置处提取导频符号的子载波解映射器; 以及信道估计器，用于通过使用从子载波解映射器提供的导频符号和预设滤波器因子通过无限脉冲响应（IIR）滤波获取子载波的信道估计值。 因此，可以通过考虑信道变化来估计信道条件。

公开(公告)号：US20100104052A1

公开(公告)日：2010-04-29

申请号：US12607626

申请日：2009-10-28

申请人： Hung-Su PARK ,  Shin-Woo KANG ,  Soo-Bok YEO ,  Ki-Hwan JEON ,  Joo-Kwang KIM ,  Sung-Chul HAN

发明人： Hung-Su PARK ,  Shin-Woo KANG ,  Soo-Bok YEO ,  Ki-Hwan JEON ,  Joo-Kwang KIM ,  Sung-Chul HAN

IPC分类号： H04L27/08

CPC分类号： H04W52/52 ,  H04L5/0023 ,  H04L5/0044 ,  H04L5/0064

摘要： An automatic gain control apparatus and method for a compressed mode in a MIMO system are provided. The method includes determining power at a first frequency band using a first receiver, simultaneously determining power at a second frequency band using a second receiver in a compressed mode, if the second receiver changes a power determination frequency band into the first frequency band, correcting the power determination value of the first receiver, and applying the corrected power determination value of the first receiver to the second receiver.

摘要翻译： 提供了一种用于MIMO系统中的压缩模式的自动增益控制装置和方法。 该方法包括使用第一接收机确定第一频带处的功率，同时使用第二接收机以压缩模式确定第二频带处的功率，如果第二接收机将功率确定频带改变为第一频带， 第一接收机的功率确定值，以及将第一接收机的校正功率确定值应用于第二接收机。

公开(公告)号：US08144796B2

公开(公告)日：2012-03-27

申请号：US12248282

申请日：2008-10-09

申请人： Kil-Ho Shin ,  Soo-Bok Yeo ,  Bong-Gee Song ,  Jong-Han Lim

发明人： Kil-Ho Shin ,  Soo-Bok Yeo ,  Bong-Gee Song ,  Jong-Han Lim

IPC分类号： H04B7/02

CPC分类号： H04B7/0689 ,  H04B7/0697 ,  H04B7/0871 ,  H04B17/345 ,  H04B17/382

摘要： An apparatus and a method for selecting an operation mode to improve a throughput in a mobile communication system are provided. The apparatus includes a Carrier to Interference and Noise Ratio (CINR) predictor for predicting a probable average and dispersion for a CINR measured using a preamble of a received pilot signal or radio signal, a metric calculator for calculating a throughput for each Modulation and Coding Scheme Level (MCS_Level) by using the probable average and dispersion for the predicted CINR and for selecting an MCS_Level having a maximum throughput, and an operation mode selector for selecting an operation mode of the selected MCS_Level having the maximum throughput.

摘要翻译： 提供了一种用于选择提高移动通信系统中的吞吐量的操作模式的装置和方法。 该装置包括载波干扰和噪声比（CINR）预测器，用于预测使用接收到的导频信号或无线电信号的前同步码测量的CINR的可能平均值和色散，用于计算每个调制和编码方案的吞吐量的度量计算器 电平（MCS_Level），以及用于选择具有最大吞吐量的MCS_Level的可能平均值和色散，以及用于选择具有最大吞吐量的所选MCS_Level的操作模式的操作模式选择器。

公开(公告)号：US08724726B2

公开(公告)日：2014-05-13

申请号：US12607626

申请日：2009-10-28

申请人： Hung-Su Park ,  Shin-Woo Kang ,  Soo-Bok Yeo ,  Ki-Hwan Jeon ,  Joo-Kwang Kim ,  Sung-Chul Han

发明人： Hung-Su Park ,  Shin-Woo Kang ,  Soo-Bok Yeo ,  Ki-Hwan Jeon ,  Joo-Kwang Kim ,  Sung-Chul Han

IPC分类号： H04B7/02

CPC分类号： H04W52/52 ,  H04L5/0023 ,  H04L5/0044 ,  H04L5/0064

摘要： An automatic gain control apparatus and method for a compressed mode in a MIMO system are provided. The method includes determining power at a first frequency band using a first receiver, simultaneously determining power at a second frequency band using a second receiver in a compressed mode, if the second receiver changes a power determination frequency band into the first frequency band, correcting the power determination value of the first receiver, and applying the corrected power determination value of the first receiver to the second receiver.

摘要翻译： 提供了一种用于MIMO系统中的压缩模式的自动增益控制装置和方法。 该方法包括使用第一接收机确定第一频带处的功率，同时使用第二接收机以压缩模式确定第二频带处的功率，如果第二接收机将功率确定频带改变为第一频带， 第一接收机的功率确定值，以及将第一接收机的校正功率确定值应用于第二接收机。

公开(公告)号：US08379695B2

公开(公告)日：2013-02-19

申请号：US12787581

申请日：2010-05-26

申请人： Soo-Bok Yeo ,  Kwang-Man Ok

发明人： Soo-Bok Yeo ,  Kwang-Man Ok

IPC分类号： H04B1/10 ,  H04L1/02

CPC分类号： H04L25/03006 ,  H04B1/7075 ,  H04B1/7115

摘要： An apparatus and a method for selecting a receiver for demodulating a reception signal at a reception end having a plurality of receivers are provided. The method includes determining, a mean and a standard deviation of Signal-to-Noise Ratios (SNRs) of the receivers are determined, estimating a Doppler frequency, determining a statistical value of a modulation order of subframes received in advance, determining SNR estimation values of the receivers based on the determined mean and standard deviation of the receivers, the estimated Doppler frequency, and the determined statistical value of the modulation order of the received subframes, selecting one receiver having a largest SNR estimation value among the determined SNRs of the receivers, and demodulating a reception signal using the selected receiver.

摘要翻译： 提供一种用于选择用于在具有多个接收器的接收端解调接收信号的接收机的装置和方法。 该方法包括：确定接收机的信噪比（SNR）的平均值和标准偏差，估计多普勒频率，确定预先接收的子帧的调制阶数的统计值，确定SNR估计值 基于确定的接收机的平均和标准偏差，所估计的多普勒频率和所确定的接收到的子帧的调制阶数的统计值，选择接收机的确定的SNR中具有最大SNR估计值的一个接收机 并且使用所选择的接收机解调接收信号。

公开(公告)号：US20090097583A1

公开(公告)日：2009-04-16

申请号：US12248282

申请日：2008-10-09

申请人： Kil-Ho SHIN ,  Soo-Bok YEO ,  Bong-Gee SONG ,  Jong-Han LIM

发明人： Kil-Ho SHIN ,  Soo-Bok YEO ,  Bong-Gee SONG ,  Jong-Han LIM

IPC分类号： H04B7/02

CPC分类号： H04B7/0689 ,  H04B7/0697 ,  H04B7/0871 ,  H04B17/345 ,  H04B17/382

摘要： An apparatus and a method for selecting an operation mode to improve a throughput in a mobile communication system are provided. The apparatus includes a Carrier to Interference and Noise Ratio (CINR) predictor for predicting a probable average and dispersion for a CINR measured using a preamble of a received pilot signal or radio signal, a metric calculator for calculating a throughput for each Modulation and Coding Scheme Level (MCS_Level) by using the probable average and dispersion for the predicted CINR and for selecting an MCS_Level having a maximum throughput, and an operation mode selector for selecting an operation mode of the selected MCS_Level having the maximum throughput.

摘要翻译： 提供了一种用于选择提高移动通信系统中的吞吐量的操作模式的装置和方法。 该装置包括载波干扰和噪声比（CINR）预测器，用于预测使用接收到的导频信号或无线电信号的前同步码测量的CINR的可能平均值和色散，用于计算每个调制和编码方案的吞吐量的度量计算器 电平（MCS_Level），以及用于选择具有最大吞吐量的MCS_Level的可能平均值和色散，以及用于选择具有最大吞吐量的所选MCS_Level的操作模式的操作模式选择器。

公开(公告)号：US20080031387A1

公开(公告)日：2008-02-07

申请号：US11882596

申请日：2007-08-02

申请人： Young-Won Shin ,  Soo-Bok Yeo ,  Yong-Sun Hwang ,  Bong-Gee Song ,  Jong-Han Lim

发明人： Young-Won Shin ,  Soo-Bok Yeo ,  Yong-Sun Hwang ,  Bong-Gee Song ,  Jong-Han Lim

IPC分类号： H04L27/08

CPC分类号： H04L27/2647 ,  H03G3/3052 ,  H03G3/3068 ,  H04B7/0842

摘要： An AGC apparatus and method in a BWA communication system are provided, in which a MAP interpreter detects a beamformed symbol period in an (n−1)th signal, a symbol power calculator measures an average signal level of a symbol in an nth signal, and a beamforming gain calculator calculates a beamforming gain of the nth signal by adding a beamforming gain of the (n−1)th signal to a power difference between a signal of a beamformed symbol period and a signal of a non-beamformed symbol period in the nth signal using information about the beamformed symbol period of the (n−1)th signal and the average signal level of the symbol in the nth signal.

摘要翻译： 提供了一种BWA通信系统中的AGC装置和方法，其中MAP解释器在第（n-1）个第信号中检测波束形成的符号周期，符号功率计算器测量平均信号电平 在n ^{信号中的符号，并且波束形成增益计算器通过将第（n-1）个SUP的波束成形增益相加来计算第n个信号的波束成形增益 使用关于波束形成符号周期的波束形成的符号周期的信息，使用波束形成的符号周期的信号和第n 信号中的非波束形成的符号周期的信号之间的功率差信号 （n-1）信号和第n个信号中的符号的平均信号电平。}

公开(公告)号：US07170923B2

公开(公告)日：2007-01-30

申请号：US10338714

申请日：2003-01-09

申请人： Soo-Bok Yeo ,  Sang-Min Bae ,  Ji-Won Ha ,  Jong-Han Kim

发明人： Soo-Bok Yeo ,  Sang-Min Bae ,  Ji-Won Ha ,  Jong-Han Kim

IPC分类号： H04B1/69 ,  H04B7/00 ,  H04B7/216

CPC分类号： H04L1/20 ,  H04B1/70755 ,  H04B2201/70709 ,  H04L1/201

摘要： An apparatus for detecting a frame transmission period in a CDMA mobile communication system supporting a discontinuous transmission mode. A first frame detector performs primary frame detection by calculating a signal-to-interference ratio (SIR) using traffic symbol energy, pilot symbol energy and noise energy measured for a predetermined time period, and comparing the SIR with a predetermined frame detection threshold value. A decoder calculates a symbol error rate (SER) by decoding symbols received for the predetermined time period. A second frame detector selects an SER threshold value according to frame detection information from the first frame detector, and compares the selected SER threshold value with the SER to determine whether a frame has been transmitted.

摘要翻译： 一种在支持不连续传输模式的CDMA移动通信系统中检测帧传输周期的装置。 第一帧检测器通过使用在预定时间段内测量的业务符号能量，导频符号能量和噪声能量，并将SIR与预定帧检测阈值进行比较来计算信号干扰比（SIR）来执行主帧检测。 解码器通过解码在预定时间段内接收到的符号来计算符号错误率（SER）。 第二帧检测器根据来自第一帧检测器的帧检测信息选择SER阈值，并将所选择的SER阈值与SER进行比较，以确定帧是否已被发送。

公开(公告)号：US20110051797A1

公开(公告)日：2011-03-03

申请号：US12806859

申请日：2010-08-20

申请人： Seung-Hwan Won ,  Soo-Bok Yeo ,  Ho-Il Kim ,  Se-Jin Kong

发明人： Seung-Hwan Won ,  Soo-Bok Yeo ,  Ho-Il Kim ,  Se-Jin Kong

IPC分类号： H04L27/01

CPC分类号： H04L25/03019 ,  H04B1/1027 ,  H04B1/7103 ,  H04L1/0003 ,  H04L1/20 ,  H04L2025/0342 ,  H04L2025/03681 ,  H04L2025/03726

摘要： A mobile terminal includes a channel estimation module that is maintained in an active state. A controller determines an activation time point of an equalizer weight calculation module for calculating a tap coefficient. The activation time point is earlier than an activation time point of a main equalizer module, and activates the equalizer weight calculation module at the activation time point so as to calculate the tap coefficient. When the equalizer weight calculation module's operation is completed, the controller activates the main equalizer module, detects a mobile terminal ID, activates an interference cancellation module, and controls the main equalizer module to provide a data signal demodulator with the data signal compensated for by the tap coefficient. A demodulator demodulates the compensated data signal.

摘要翻译： 移动终端包括维持在活动状态的信道估计模块。 控制器确定用于计算抽头系数的均衡器权重计算模块的激活时间点。 激活时间点早于主均衡器模块的激活时间点，并且在激活时间点激活均衡器权重计算模块，以便计算抽头系数。 当均衡器重量计算模块的操作完成时，控制器激活主均衡器模块，检测移动终端ID，激活干扰消除模块，并控制主均衡器模块，为数据信号解调器提供数据信号补偿 抽头系数。 解调器解调补偿数据信号。

公开(公告)号：US07792204B2

公开(公告)日：2010-09-07

申请号：US11882596

申请日：2007-08-02

申请人： Yong-Won Shin ,  Soo-Bok Yeo ,  Yong-Sun Hwang ,  Bong-Gee Song ,  Jong-Han Lim

发明人： Yong-Won Shin ,  Soo-Bok Yeo ,  Yong-Sun Hwang ,  Bong-Gee Song ,  Jong-Han Lim

IPC分类号： H04L27/28 ,  H04L27/08

CPC分类号： H04L27/2647 ,  H03G3/3052 ,  H03G3/3068 ,  H04B7/0842

摘要： An AGC apparatus and method in a BWA communication system are provided, in which a MAP interpreter detects a beamformed symbol period in an (n−1)th signal, a symbol power calculator measures an average signal level of a symbol in an nth signal, and a beamforming gain calculator calculates a beamforming gain of the nth signal by adding a beamforming gain of the (n−1)th signal to a power difference between a signal of a beamformed symbol period and a signal of a non-beamformed symbol period in the nth signal using information about the beamformed symbol period of the (n−1)th signal and the average signal level of the symbol in the nth signal.

摘要翻译： 提供了一种在BWA通信系统中的AGC装置和方法，其中MAP解释器在第（n-1）个信号中检测波束形成的符号周期，符号功率计算器测量第n个信号中的符号的平均信号电平， 并且波束成形增益计算器通过将第（n-1）个信号的波束成形增益与波束形成的符号周期的信号和非波束形成的符号周期的信号之间的功率差相加，来计算第n个信号的波束成形增益， 使用关于第（n-1）个信号的波束形成的符号周期的信息的第n个信号和第n个信号中的符号的平均信号电平。