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1. 发明申请

US20080310560A1 Apparatus for Estimating Phase Offset of Multiple Survival Paths and Digital Wired/Wireless Communication System Using the Same 审中-公开
标题翻译：用于估计多个存活路径的相位偏移的装置和使用其的数字有线/无线通信系统
公开(公告)号：US20080310560A1
公开(公告)日：2008-12-18
申请号：US12094717
申请日：2006-05-26
申请人： Pan-Soo Kim , Yun-Jeong Song , Byoung-Hak Kim , Deock-Gil Oh , Ho-Jin Lee , Jun Heo , Joong-Gon Ryoo
发明人： Pan-Soo Kim , Yun-Jeong Song , Byoung-Hak Kim , Deock-Gil Oh , Ho-Jin Lee , Jun Heo , Joong-Gon Ryoo
IPC分类号： H04L27/06
CPC分类号： H04L1/205 , H03M13/2957 , H03M13/296 , H04L1/005 , H04L1/0066 , H04L1/0071
摘要： Provided is an apparatus for estimating phase offsets of multiple survival paths and a satellite communication system using the same. The apparatus includes: upper/lower decoding units for obtaining a phase offset estimation value and estimating phase offsets of each survival path based on a stored parameter estimation value of a previous state inputted from an external device; an interleaving/de-interleaving unit for minimizing correlation between data used to estimate a parameter according to the estimated phase offset value from the upper/lower decoding means; and a phase offset outputting unit for outputting the phase offset value estimated through the upper decoding unit and the de-interleaving unit.
摘要翻译：提供了一种用于估计多个存活路径的相位偏移的装置和使用其的卫星通信系统。该装置包括：上/下解码单元，用于获得相位偏移估计值，并且基于从外部设备输入的先前状态的存储参数估计值来估计每个生存路径的相位偏移; 交织/解交织单元，用于根据来自上/下解码装置的估计相位偏移值，最小化用于估计参数的数据之间的相关性; 以及相位偏移输出单元，用于输出通过上部解码单元和解交织单元估计的相位偏移值。

2. 发明申请

US20080273585A1 Apparatus for Estimating Phase Error and Phase Error Correction System Using the Same 失效
标题翻译：用于估计相位误差和相位误差校正系统的装置
公开(公告)号：US20080273585A1
公开(公告)日：2008-11-06
申请号：US12094851
申请日：2006-09-11
申请人： Pan-Soo Kim , Byoung-Hak Kim , Yun-Jeong Song , Deock-Gil Oh , Ho-Jin Lee , Jun Heo , Joong-Gon Ryoo
发明人： Pan-Soo Kim , Byoung-Hak Kim , Yun-Jeong Song , Deock-Gil Oh , Ho-Jin Lee , Jun Heo , Joong-Gon Ryoo
IPC分类号： H04B17/00 , H04L7/00
CPC分类号： H04L27/0014 , H04L2027/0057 , H04L2027/0067
摘要： Provided are an apparatus for estimating a phase error and a phase error correcting system using the phase error estimating apparatus. The apparatus includes: a probability value estimating unit for estimating a negative log probability value for each transmission symbol by transforming a soft output information transferred from the outside to a log A posterior probability ratio (LAPPR) value; an APP value calculating unit for calculating a posterior probability (APP) value by applying a negative exponential function to the transmission symbol; an average value deciding unit for deciding an average value for each transmission symbol using the probability information entirely, partially, or selectively according to a probability information type; and a symbol phase estimating unit for estimating a phase of a symbol based on the decided average value.
摘要翻译：提供了一种使用相位误差估计装置估计相位误差的装置和相位误差校正系统。该装置包括：概率值估计单元，用于通过将从外部传送的软输出信息变换为对数A后验概率比（LAPPR）值来估计每个发送符号的负对数概率值; APP值计算单元，用于通过对发送符号应用负指数函数来计算后验概率（APP）值; 平均值确定单元，用于根据概率信息类型完全，部分或选择地使用概率信息来确定每个传输符号的平均值; 以及符号相位估计单元，用于基于所确定的平均值来估计符号的相位。

3. 发明授权

US08045646B2 Apparatus for estimating phase error and phase error correction system using the same 失效
标题翻译：用于估计相位误差的装置和使用其的相位误差校正系统
公开(公告)号：US08045646B2
公开(公告)日：2011-10-25
申请号：US12094851
申请日：2006-09-11
申请人： Pan-Soo Kim , Byoung-Hak Kim , Yun-Jeong Song , Deock-Gil Oh , Ho-Jin Lee , Jun Heo , Joong-Gon Ryoo
发明人： Pan-Soo Kim , Byoung-Hak Kim , Yun-Jeong Song , Deock-Gil Oh , Ho-Jin Lee , Jun Heo , Joong-Gon Ryoo
IPC分类号： H03K9/00
CPC分类号： H04L27/0014 , H04L2027/0057 , H04L2027/0067
摘要： Provided are an apparatus for estimating a phase error and a phase error correcting system using the phase error estimating apparatus. The apparatus includes: a probability value estimating unit for estimating a negative log probability value for each transmission symbol by transforming a soft output information transferred from the outside to a log A posterior probability ratio (LAPPR) value; an APP value calculating unit for calculating a posterior probability (APP) value by applying a negative exponential function to the transmission symbol; an average value deciding unit for deciding an average value for each transmission symbol using the probability information entirely, partially, or selectively according to a probability information type; and a symbol phase estimating unit for estimating a phase of a symbol based on the decided average value.
摘要翻译：提供了一种使用相位误差估计装置估计相位误差的装置和相位误差校正系统。该装置包括：概率值估计单元，用于通过将从外部传送的软输出信息变换为对数A后验概率比（LAPPR）值来估计每个发送符号的负对数概率值; APP值计算单元，用于通过对发送符号应用负指数函数来计算后验概率（APP）值; 平均值确定单元，用于根据概率信息类型完全，部分或选择地使用概率信息来确定每个传输符号的平均值; 以及符号相位估计单元，用于基于所确定的平均值来估计符号的相位。

4. 发明申请

US20060146961A1 Frequency offset estimating method and receiver employing the same 失效
公开(公告)号：US20060146961A1
公开(公告)日：2006-07-06
申请号：US11297257
申请日：2005-12-07
申请人： Pan-Soo Kim , Yun-Jeong Song , Byoung-Hak Kim , Deock-Gil Oh , Ho-Jin Lee
发明人： Pan-Soo Kim , Yun-Jeong Song , Byoung-Hak Kim , Deock-Gil Oh , Ho-Jin Lee
IPC分类号： H04L27/14
CPC分类号： H04L27/0014 , H04L2027/003 , H04L2027/0046 , H04L2027/0065
摘要： Provided is a method for estimating carrier wave or doppler frequency offset based on an approximated quadratic non-linear function in fine search, and a receiver employing the method. The method for estimating frequency offset includes the steps of: a) extracting more than three discrete samples in an order where the discrete samples are close to a maximum value of a power spectrum density function; b) inducing a quadratic non-linear function by using the extracted discrete samples; and c) estimating the frequency offset from a maximum point of the quadratic non-linear function. The technology of the present research makes it possible to exactly estimate frequency offset without increasing hardware complexity in estimation of carrier wave or doppler frequency offset.

5. 发明授权

US07616710B2 Frequency offset estimating method and receiver employing the same 失效
标题翻译：频率偏移估计方法和采用该方法的接收机
公开(公告)号：US07616710B2
公开(公告)日：2009-11-10
申请号：US11297257
申请日：2005-12-07
申请人： Pan-Soo Kim , Yun-Jeoug Song , Byoung-Hak Kim , Deock-Gil Oh , Ho-Jin Lee
发明人： Pan-Soo Kim , Yun-Jeoug Song , Byoung-Hak Kim , Deock-Gil Oh , Ho-Jin Lee
IPC分类号： H04L27/14
CPC分类号： H04L27/0014 , H04L2027/003 , H04L2027/0046 , H04L2027/0065
摘要： Provided is a method for estimating carrier wave or doppler frequency offset based on an approximated quadratic non-linear function in fine search, and a receiver employing the method. The method for estimating frequency offset includes the steps of: a) extracting more than three discrete samples in an order where the discrete samples are close to a maximum value of a power spectrum density function; b) inducing a quadratic non-linear function by using the extracted discrete samples; and c) estimating the frequency offset from a maximum point of the quadratic non-linear function. The technology of the present research makes it possible to exactly estimate frequency offset without increasing hardware complexity in estimation of carrier wave or doppler frequency offset.
摘要翻译：提供了一种基于精细搜索中的近似二次非线性函数来估计载波或多普勒频率偏移的方法，以及采用该方法的接收机。用于估计频率偏移的方法包括以下步骤：a）以离散样本接近功率谱密度函数的最大值的顺序提取三个以上的离散样本; b）通过使用提取的离散样本来诱导二次非线性函数; 以及c）从二次非线性函数的最大点估计频率偏移。本研究的技术使得可以精确估计频偏，而不增加载波或多普勒频偏估计中的硬件复杂度。

6. 发明申请

US20060045137A1 Apparatus for estimating frequency offset from received signal and method for the same 失效
标题翻译：用于估计接收信号的频率偏移的装置及其方法
公开(公告)号：US20060045137A1
公开(公告)日：2006-03-02
申请号：US11026957
申请日：2004-12-30
申请人： Pansoo Kim , Yun-Jeong Song , Soon-Ik Jeon , Deock-Gil Oh , Ho-Jin Lee
发明人： Pansoo Kim , Yun-Jeong Song , Soon-Ik Jeon , Deock-Gil Oh , Ho-Jin Lee
IPC分类号： H04J3/06
CPC分类号： H04L27/0014 , H04L2027/0028 , H04L2027/0048 , H04L2027/0065 , H04L2027/0069
摘要： Provided are an apparatus for estimating frequency offset from received signal and method for the same. The apparatus and method estimates frequency offset precisely without increment of autocorrelator by performing moving average filtering on a noised signal to thereby alleviate jitter. The frequency offset estimating apparatus includes: moving average filter for alleviating jitter of received signal; multiplier for multiplying a filtered signal by conjugate complex operanded pilot signal; phase-rotation value calculator for calculating a phase-rotation value from multiplicand operanded signal by using of symbol delay and an autocorrelation function; frequency offset estimator for estimating frequency offset from the phase-rotation value based on a smoothing function multiplication.
摘要翻译：提供了一种用于从接收信号估计频率偏移的装置及其方法。该装置和方法通过对噪声信号执行移动平均滤波来精确地估计频率偏移而不增加自相关器，从而减轻抖动。频率偏移估计装置包括：移动平均滤波器，用于减轻接收信号的抖动; 乘法器，用于将经滤波的信号乘以共轭复运算导频信号; 相位旋转值计算器，用于通过使用符号延迟和自相关函数来从被乘数运算信号计算相位旋转值; 频率偏移估计器，用于基于平滑函数乘法估计相位旋转值的频率偏移。

7. 发明授权

US07646784B2 Apparatus for estimating frequency offset from received signal and method for the same 失效
标题翻译：用于估计接收信号的频率偏移的装置及其方法
公开(公告)号：US07646784B2
公开(公告)日：2010-01-12
申请号：US11026957
申请日：2004-12-30
申请人： Pansoo Kim , Yun-Jeong Song , Soon-Ik Jeon , Deock-Gil Oh , Ho-Jin Lee
发明人： Pansoo Kim , Yun-Jeong Song , Soon-Ik Jeon , Deock-Gil Oh , Ho-Jin Lee
IPC分类号： H04J4/00 , H04J3/16 , H04J3/06 , H04B1/00 , H03K9/10 , H04L7/04
CPC分类号： H04L27/0014 , H04L2027/0028 , H04L2027/0048 , H04L2027/0065 , H04L2027/0069
摘要： Provided are an apparatus for estimating frequency offset from received signal and method for the same. The apparatus and method estimates frequency offset precisely without increment of autocorrelator by performing moving average filtering on a noised signal to thereby alleviate jitter. The frequency offset estimating apparatus includes: moving average filter for alleviating jitter of received signal; multiplier for multiplying a filtered signal by conjugate complex operanded pilot signal; phase-rotation value calculator for calculating a phase-rotation value from multiplicand operanded signal by using of symbol delay and an autocorrelation function; frequency offset estimator for estimating frequency offset from the phase-rotation value based on a smoothing function multiplication.
摘要翻译：提供了一种用于从接收信号估计频率偏移的装置及其方法。该装置和方法通过对噪声信号执行移动平均滤波来精确地估计频率偏移而不增加自相关器，从而减轻抖动。频率偏移估计装置包括：移动平均滤波器，用于减轻接收信号的抖动; 乘法器，用于将经滤波的信号乘以共轭复运算导频信号; 相位旋转值计算器，用于通过使用符号延迟和自相关函数来从被乘数运算信号计算相位旋转值; 频率偏移估计器，用于基于平滑函数乘法估计相位旋转值的频率偏移。

8. 发明授权

US08259646B2 Apparatus and method for acquiring frame synchronization and frequency synchronization simultaneously in communication system 失效
标题翻译：在通信系统中同时获取帧同步和频率同步的装置和方法
公开(公告)号：US08259646B2
公开(公告)日：2012-09-04
申请号：US12517432
申请日：2007-12-03
申请人： Pan-Soo Kim , Dae-Ig Jang , Deock-Gil Oh , Ho-Jin Lee
发明人： Pan-Soo Kim , Dae-Ig Jang , Deock-Gil Oh , Ho-Jin Lee
IPC分类号： H04J3/06
CPC分类号： H04L7/042 , H04L7/046 , H04L27/0014 , H04L2027/003
摘要： An apparatus and method for acquiring reliable frame synchronization performance and frequency synchronization simultaneously in a communication system includes a differential correlator outputting a result value obtained by performing a differential operation based on an input signal having symbol timing synchronization and a value pre-defined with a sender sending the input signal, a frequency error calculator compensating for a frequency error based on the result value of the differential correlator and a frequency compensation control signal, and a frame synchronization determiner outputting the frequency compensation control signal if the result value of the differential correlator is greater than a threshold set having at least one value. By introducing a correlation scheme, i.e. Differential Generalized Post Detection Integration (DGPDI), in which differential information corresponding to a half of a symbol duration length is used within a duration from a frame start symbol to a UW symbol duration in a TDM/TDMA transmission structure in which a low SNR and a high frequency error must be considered, a more reliable frame synchronization estimation value can be acquired in comparison to a conventional frame synchronization scheme in which differential information between single neighbor symbols is used.
摘要翻译：一种用于在通信系统中同时获取可靠的帧同步性能和频率同步的装置和方法包括差分相关器，其输出通过基于具有符号定时同步的输入信号执行差分运算而得到的结果值，以及预定义的发送器发送输入信号，基于差分相关器的结果值和频率补偿控制信号来补偿频率误差的频率误差计算器，以及如果差分相关器的结果值为大于具有至少一个值的阈值集合。通过引入相关方案，即差分广义后检测积分（DGPDI），其中对应于符号持续时间长度的一半的差分信息在TDM / TDMA传输中的帧开始符号到UW符号持续时间的持续时间内被使用必须考虑低SNR和高频误差的结构，与使用单个相邻符号之间的差分信息的常规帧同步方案相比，可以获得更可靠的帧同步估计值。

9. 发明申请

US20100039985A1 APPARATUS AND METHOD FOR ACQUIRING FRAME SYNCHRONIZATION AND FREQUENCY SYNCHRONIZATION SIMULTANEOUSLY IN COMMUNICATION SYSTEM 失效
标题翻译：用于在通信系统中同时获取帧同步和频率同步的装置和方法
公开(公告)号：US20100039985A1
公开(公告)日：2010-02-18
申请号：US12517432
申请日：2007-12-03
申请人： Pan-Soo Kim , Dae-Ig Jang , Deock-Gil Oh , Ho-Jin Lee
发明人： Pan-Soo Kim , Dae-Ig Jang , Deock-Gil Oh , Ho-Jin Lee
IPC分类号： H04J3/08
CPC分类号： H04L7/042 , H04L7/046 , H04L27/0014 , H04L2027/003
摘要： An apparatus and method for acquiring reliable frame synchronization performance and frequency synchronization simultaneously in a communication system includes a differential correlator outputting a result value obtained by performing a differential operation based on an input signal having symbol timing synchronization and a value pre-defined with a sender sending the input signal, a frequency error calculator compensating for a frequency error based on the result value of the differential correlator and a frequency compensation control signal, and a frame synchronization determiner outputting the frequency compensation control signal if the result value of the differential correlator is greater than a threshold set having at least one value. By introducing a correlation scheme, i.e. Differential Generalized Post Detection Integration (DGPDI), in which differential information corresponding to a half of a symbol duration length is used within a duration from a frame start symbol to a UW symbol duration in a TDM/TDMA transmission structure in which a low SNR and a high frequency error must be considered, a more reliable frame synchronization estimation value can be acquired in comparison to a conventional frame synchronization scheme in which differential information between single neighbor symbols is used.
摘要翻译：一种用于在通信系统中同时获取可靠的帧同步性能和频率同步的装置和方法包括差分相关器，其输出通过基于具有符号定时同步的输入信号执行差分运算而得到的结果值，以及预定义的发送器发送输入信号，基于差分相关器的结果值和频率补偿控制信号来补偿频率误差的频率误差计算器，以及如果差分相关器的结果值为大于具有至少一个值的阈值集合。通过引入相关方案，即差分广义后检测积分（DGPDI），其中对应于符号持续时间长度的一半的差分信息在TDM / TDMA传输中的帧开始符号到UW符号持续时间的持续时间内被使用必须考虑低SNR和高频误差的结构，与使用单个相邻符号之间的差分信息的常规帧同步方案相比，可以获得更可靠的帧同步估计值。

10. 发明授权

US07782823B2 Apparatus for allocating resources in DAMA satellite communication system and method thereof 失效
标题翻译：用于在DAMA卫星通信系统中分配资源的装置及其方法
公开(公告)号：US07782823B2
公开(公告)日：2010-08-24
申请号：US11305587
申请日：2005-12-16
申请人： Ki-Dong Lee , Deock-Gil Oh , Ho-Jin Lee
发明人： Ki-Dong Lee , Deock-Gil Oh , Ho-Jin Lee
IPC分类号： H04Q7/00
CPC分类号： H04L41/0896 , H04W28/20
摘要： Provided are an apparatus for estimating an increment in the number of packets arriving at a transmission queue of each terminal and allocating resources to terminals based on the increment in a Demand Assignment Multiple Access (DAMA) satellite communication system, and a method thereof. The method, includes the steps of: a) comparing a summation of requested time slot quantities of terminals with a total number of available time slots; and b) allocating the time slots as much as the requested time slot quantity to each terminal and allocating remaining time slots additionally in proportion to an estimated increase in the number of packets arriving at a transmission queue of each terminal. The apparatus can raise efficiency of resources allocation in DAMA communications and reduce the packet transmission time in a terminal transmission queue.
摘要翻译：提供了一种用于估计到达每个终端的传输队列的分组数量的增量的装置，并且基于在请求分配多路访问（DAMA）卫星通信系统中的增量向终端分配资源及其方法。该方法包括以下步骤：a）将所请求的终端时隙量的总和与可用时隙的总数进行比较; 以及b）将所请求的时隙数量的时隙分配给每个终端，并且分配剩余时隙，以与到达每个终端的传输队列的分组数量的估计增加成比例地分配剩余时隙。该装置可以提高DAMA通信中资源分配的效率，并减少终端传输队列中的分组传输时间。

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