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1. 发明申请

US20070092041A1 Apparatus and method for robust BPSK/QPSK blind modulation classification against errors in satellite control system 失效
标题翻译：用于对卫星控制系统中的误差进行鲁棒BPSK / QPSK盲调制分类的装置和方法
公开(公告)号：US20070092041A1
公开(公告)日：2007-04-26
申请号：US11442078
申请日：2006-05-25
申请人： Il-Han Kim , Joon-Gyu Ryu , Ho-Kyom Kim , Deock-Gil Oh
发明人： Il-Han Kim , Joon-Gyu Ryu , Ho-Kyom Kim , Deock-Gil Oh
IPC分类号： H04L27/22
CPC分类号： H04L27/0012 , H04L27/22
摘要： Provided are an apparatus and method for robust Binary Phase Shift Keying/Quadrature Phase Shift Keying (BPSK/QPSK) blind modulation classification against errors in a satellite communication system. The apparatus includes first and second likelihood value calculators for calculating a likelihood value of a received baseband signal each for of BPSK and QPSK modulation modes, respectively, a maximum setting unit for deriving a maximum value of the likelihood values or ith likelihood ratios calculated by the first and second likelihood value calculators and setting a flag for the maximum value to “1” and a flag for the remaining value to “0”, first and second flag combining units for combining the flags for the modulation modes, respectively, a modulation mode flag setting unit for selecting a maximum value from the flags combined by the first and second flag combining units, and a modulation classification mode deciding unit.
摘要翻译：本发明提供了一种针对卫星通信系统中的错误的鲁棒二进制相移键控/正交相移键控（BPSK / QPSK）盲调制分类的装置和方法。该装置包括：第一和第二似然值计算器，用于分别计算用于BPSK和QPSK调制模式的接收基带信号的似然值;最大设置单元，用于导出似然值的最大值或i < / SUP>似然比，并将最大值的标志设置为“1”，将剩余值的标志设置为“0”，第一和第二标志组合单元，用于组合用于调制模式标志设置单元，用于从由第一和第二标志组合单元组合的标志中选择最大值，以及调制分类模式决定单元。

2. 发明授权

US07697639B2 Apparatus and method for robust BPSK/QPSK blind modulation classification against errors in satellite control system 失效
标题翻译：用于对卫星控制系统中的误差进行鲁棒BPSK / QPSK盲调制分类的装置和方法
公开(公告)号：US07697639B2
公开(公告)日：2010-04-13
申请号：US11442078
申请日：2006-05-25
申请人： Il-Han Kim , Joon-Gyu Ryu , Ho-Kyom Kim , Deock-Gil Oh
发明人： Il-Han Kim , Joon-Gyu Ryu , Ho-Kyom Kim , Deock-Gil Oh
IPC分类号： H03D3/22
CPC分类号： H04L27/0012 , H04L27/22
摘要： Provided are an apparatus and method for robust Binary Phase Shift Keying/Quadrature Phase Shift Keying (BPSK/QPSK) blind modulation classification. The apparatus includes first and second likelihood value calculators for calculating a likelihood value of a received baseband signal each for of BPSK and QPSK modulation modes. A maximum setting unit derives a maximum value of the likelihood values or ith likelihood ratios calculated by the first and second likelihood value calculators. A flag is set for the maximum value to “1” and a flag for the remaining value is set to “0”. First and second flag combining units combine the flags for the modulation modes. A modulation mode flag setting unit selects a maximum value from the flags combined by the first and second flag combining units.
摘要翻译：提供了用于鲁棒二进制相移键控/正交相移键控（BPSK / QPSK）盲调制分类的装置和方法。该装置包括用于计算每个用于BPSK和QPSK调制模式的接收基带信号的似然值的第一和第二似然值计算器。最大设置单元导出由第一和第二似然值计算器计算的似然值或第i似然比的最大值。设置最大值为“1”的标志，剩余值的标志设置为“0”。第一和第二标志组合单元组合用于调制模式的标志。调制模式标志设置单元从由第一和第二标志组合单元组合的标志中选择最大值。

3. 发明授权

US07286824B2 Method for controlling data transmission rate in interactive satellite communication system 失效
标题翻译：交互式卫星通信系统中数据传输速率的控制方法
公开(公告)号：US07286824B2
公开(公告)日：2007-10-23
申请号：US10916965
申请日：2004-08-11
申请人： Ki-Dong Lee , Ho-Jin Lee , Ho-Kyom Kim , Deock-Gil Oh
发明人： Ki-Dong Lee , Ho-Jin Lee , Ho-Kyom Kim , Deock-Gil Oh
IPC分类号： H04Q7/20
CPC分类号： H04B7/18532
摘要： A method for controlling data transmission rate in order to save waste of resources due to Non-Line Of Sight (NLOS) region when a mobile terminal passes through the NLOS region in an interactive satellite communication system is disclosed. The method includes the steps of setting at least one threshold; at a Network Control Center (NCC) adjusting allocated resources based on the Constant Resources Allocation (CRA) after detecting whether Satellite Access Control is lost or not; compensating transmission delay by reallocating if the mobile terminal returns from the NLOS region within a first threshold duration, wherein the mobile terminal maintains the fine sync state during the first threshold duration; and deallocating all resources allocated based on the CRA if the mobile terminal does not return from the NLOS region within the first threshold duration.
摘要翻译：公开了一种用于控制数据传输速率的方法，以便在移动终端通过交互式卫星通信系统中的NLOS区域时节省由于非视线（NLOS）区域引起的资源浪费。该方法包括以下步骤：设置至少一个阈值; 在网络控制中心（NCC）检测到卫星接入控制是否丢失之后，根据恒定资源分配（CRA）调整分配的资源; 如果所述移动终端在第一阈值持续时间内从所述NLOS区域返回，则通过重新分配来补偿传输延迟，其中所述移动终端在所述第一阈值持续时间期间保持所述精细同步状态; 并且如果移动终端在第一阈值持续时间内没有从NLOS区域返回，则释放基于CRA分配的所有资源。

4. 发明申请

US20050143003A1 Method for controlling data transmission rate in interactive satellite communication system 失效
标题翻译：交互式卫星通信系统中数据传输速率的控制方法
公开(公告)号：US20050143003A1
公开(公告)日：2005-06-30
申请号：US10916965
申请日：2004-08-11
申请人： Ki-Dong Lee , Ho-Jin Lee , Ho-Kyom Kim , Deock-Gil Oh
发明人： Ki-Dong Lee , Ho-Jin Lee , Ho-Kyom Kim , Deock-Gil Oh
IPC分类号： H04B7/26 , H04B7/185 , H04Q7/20
CPC分类号： H04B7/18532
摘要： A method for controlling data transmission rate in order to save waste of resources due to Non-Line Of Sight (NLOS) region when a mobile terminal passes through the NLOS region in an interactive satellite communication system is disclosed. The method includes the steps of setting at least one threshold; at a Network Control Center (NCC) adjusting allocated resources based on the Constant Resources Allocation (CRA) after detecting whether Satellite Access Control is lost or not; compensating transmission delay by reallocating if the mobile terminal returns from the NLOS region within a first threshold duration, wherein the mobile terminal maintains the fine sync state during the first threshold duration; and deallocating all resources allocated based on the CRA if the mobile terminal does not return from the NLOS region within the first threshold duration.
摘要翻译：公开了一种用于控制数据传输速率的方法，以便在移动终端通过交互式卫星通信系统中的NLOS区域时节省由于非视线（NLOS）区域引起的资源浪费。该方法包括以下步骤：设置至少一个阈值; 在网络控制中心（NCC）检测到卫星接入控制是否丢失之后，根据恒定资源分配（CRA）调整分配的资源; 如果所述移动终端在第一阈值持续时间内从所述NLOS区域返回，则通过重新分配来补偿传输延迟，其中所述移动终端在所述第一阈值持续时间期间保持所述精细同步状态; 并且如果移动终端在第一阈值持续时间内没有从NLOS区域返回，则释放基于CRA分配的所有资源。

5. 发明申请

US20060115013A1 Blind modulation classification apparatus for use in satellite communication system and method thereof 审中-公开
标题翻译：用于卫星通信系统的盲调制分类装置及其方法
公开(公告)号：US20060115013A1
公开(公告)日：2006-06-01
申请号：US11184592
申请日：2005-07-19
申请人： Il Kim , Ho-Kyom Kim , Deock-Gil Oh , Ho-Jin Lee
发明人： Il Kim , Ho-Kyom Kim , Deock-Gil Oh , Ho-Jin Lee
IPC分类号： H04L23/02
CPC分类号： H04L27/0012
摘要： A blind modulation classification apparatus in a satellite communication system improves performance in non-ideal communication environment having frequency error and phase error, by reducing computational burden of test statistic and possibility of numerical error of hardware, with computation of likelihood for each stage independently. The blind modulation classification apparatus includes a plurality of likelihood computing units, each for computing a likelihood value of a received baseband signal for corresponding one of a plurality of modulation schemes; a maximum selecting and setting units for selecting the maximum among the calculated likelihood values and setting a flag corresponding to the maximum to ‘1’ and the other flags to ‘0’; a plurality of flag summing-up units for summing up the flags of the plurality of the modulation schemes; and a modulation scheme selecting unit for selecting the maximum among the summed-up values and selecting the modulation scheme corresponding to the selected value.
摘要翻译：卫星通信系统中的盲调制分类装置通过减少测试统计量的计算负担和硬件的数值误差的可能性，通过独立地计算每个阶段的可能性来提高具有频率误差和相位误差的非理想通信环境中的性能。盲调制分类装置包括多个似然度计算单元，每个似然运算单元用于计算多个调制方案中的相应一个的接收基带信号的似然值; 最大选择和设置单位，用于在所计算的似然值中选择最大值，并将与最大值相对应的标志设置为“1”，将其他标志设置为“0”; 多个标记求和单元，用于对多个调制方案的标志进行相加; 以及调制方式选择单元，用于选择累加值中的最大值，并选择与所选值对应的调制方案。

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