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61. 发明申请

US20050100108A1 Apparatus and method for reducing PAPR in OFDM communication system 有权
标题翻译： OFDM通信系统中减少PAPR的装置和方法
公开(公告)号：US20050100108A1
公开(公告)日：2005-05-12
申请号：US10937241
申请日：2004-09-09
申请人： Sung-Ryul Yun , Sung-Eun Park , Jae-Yoel Kim
发明人： Sung-Ryul Yun , Sung-Eun Park , Jae-Yoel Kim
IPC分类号： H04J11/00 , H04L27/26
CPC分类号： H04L27/2618
摘要： A method for reducing a peak-to-average power ratio (PAPR) in an orthogonal frequency division multiplexing (OFDM) communication system including N carriers, among which L carriers are allocated to L reserved tones and data are carried by (N-L) remaining tones, wherein L is smaller than N, including generating an impulse signal from the L reserved tones; converting a phase of the generated impulse signal into a phase of a signal having a maximum peak value from among complex output signals obtained though inverse fast Fourier transform (IFFT) of the N carriers; scaling the generated impulse signal by the difference between the maximum peak value and a target power value; and complex-adding the scaled signal and the complex output signal after IFFT.
摘要翻译：一种用于降低包括N个载波的正交频分复用（OFDM）通信系统中的峰值与平均功率比（PAPR）的方法，其中将L个载波分配给L个保留音和数据由（NL）个剩余音调其中L小于N，包括从L个保留音产生脉冲信号; 将所产生的脉冲信号的相位从通过N个载波的快速傅里叶逆变换（IFFT）获得的复合输出信号中转换为具有最大峰值的信号的相位; 通过最大峰值与目标功率值之间的差来缩放产生的脉冲信号; 并在IFFT之后复合加上缩放的信号和复合输出信号。

62. 发明授权

US07836373B2 Method and apparatus for receiving data in a communication system 有权
标题翻译：用于在通信系统中接收数据的方法和装置
公开(公告)号：US07836373B2
公开(公告)日：2010-11-16
申请号：US11603377
申请日：2006-11-21
申请人： Chi-Woo Lim , Gyu-Bum Kyung , Sung-Eun Park , Jae-Yoel Kim , Hong-Sil Jeong , Seung-Hoon Choi
发明人： Chi-Woo Lim , Gyu-Bum Kyung , Sung-Eun Park , Jae-Yoel Kim , Hong-Sil Jeong , Seung-Hoon Choi
IPC分类号： H03M13/45 , H04L1/16
CPC分类号： H03M13/1105 , H03M13/29 , H03M13/2948 , H03M13/3723 , H03M13/6306 , H04L1/005 , H04L1/08 , H04L1/1607 , H04L1/1812 , H04L1/1829
摘要： A method and apparatus is provided for receiving data in a receiver of a communication system. In the receiver, a first calculator calculates a Log Likelihood Ratio (LLR) value of data transmitted from a transmitter, a decoder performs iterative decoding on the transmitted data using the LLR value calculated by the first calculator. A second calculator determines whether there is an error in the decoded data by calculating an error of the data decoded by the decoder. A storage stores an LLR value of the decoded data according to the determination result of the second calculator. An adder adds up the LLR value calculated by the first calculator and the LLR value stored in the storage. A controller performs a control operation such that if the data transmitted from the transmitter is retransmitted data, the decoder performs iterative decoding using the LLR value added by the adder, and if the data transmitted from the transmitter is not retransmitted data, the decoder performs iterative decoding using the LLR value calculated by the first calculator.
摘要翻译：提供了一种用于在通信系统的接收机中接收数据的方法和装置。在接收机中，第一计算器计算从发送器发送的数据的对数似然比（LLR）值，解码器使用由第一计算器计算出的LLR值对所发送的数据执行迭代解码。第二计算器通过计算由解码器解码的数据的误差来确定解码数据中是否存在错误。存储器根据第二计算器的确定结果存储解码数据的LLR值。加法器将由第一计算器计算的LLR值和存储在存储器中的LLR值相加。控制器执行控制操作，使得如果从发送器发送的数据是重发数据，则解码器使用由加法器添加的LLR值来执行迭代解码，并且如果从发送器发送的数据不是重传数据，则解码器执行迭代使用由第一计算器计算的LLR值进行解码。

63. 发明申请

US20060218461A1 Channel interleaving/de-interleaving apparatus in a communication system using a low density parity check code and control method thereof 有权
公开(公告)号：US20060218461A1
公开(公告)日：2006-09-28
申请号：US11370288
申请日：2006-03-08
申请人： Gyu-Bum Kyung , Seung-Hoon Choi , Jae-Yoel Kim , Sung-Eun Park
发明人： Gyu-Bum Kyung , Seung-Hoon Choi , Jae-Yoel Kim , Sung-Eun Park
IPC分类号： H03M13/00
CPC分类号： H04L27/3416 , H03M13/11 , H03M13/251 , H03M13/255 , H03M13/27 , H03M13/356 , H04L1/0041 , H04L1/0057 , H04L1/0071 , H04L27/3488
摘要： In a communication system, information data bits are encoded in a preset coding scheme when the information data bits are input, and a Low Density Parity Check (LDPC) codeword is generated. The LDPC codeword is interleaved according to a preset channel-interleaving rule. A channel-interleaved LDPC codeword is modulated in a preset modulation scheme and a modulation symbol is generated.

64. 发明申请

US20050152408A1 Apparatus and method for transmitting and receiving coded data by encoder having unequal error probability in mobile communication system 审中-公开
标题翻译：用于通过移动通信系统中具有不等误差概率的编码器发送和接收编码数据的装置和方法
公开(公告)号：US20050152408A1
公开(公告)日：2005-07-14
申请号：US11018613
申请日：2004-12-20
申请人： Hong-Sil Jeong , Gyu-Bum Kyung , Jae-Yoel Kim , Sung-Eun Park
发明人： Hong-Sil Jeong , Gyu-Bum Kyung , Jae-Yoel Kim , Sung-Eun Park
IPC分类号： H04L1/00 , H03M13/11 , H03M13/35 , H04L12/56 , H04L12/66
CPC分类号： H03M13/1148 , H03M13/356
摘要： Disclosed is an apparatus for transmitting information bits after coding the information bits with Low Density Parity Check (LDPC) codes having unequal error probability values in a wireless communication system which channel-codes and transmits the information bits. The apparatus includes a LDPC encoder for mapping high information bits to low variable nodes and low information bits to high variable nodes, the high information bits having high importance priorities and the low information bits having low importance priorities from among the information bits, wherein the low variable nodes are variable nodes having low error probability values and the high variable nodes are variable nodes having high error probability values in a factor graph of the LDPC codes.
摘要翻译：公开了一种用于在对通信编码和发送信息比特的无线通信系统中具有不等错误概率值的低密度奇偶校验（LDPC）码进行编码信息比特之后发送信息比特的装置。该装置包括用于将高信息比特映射到低可变节点和低信息比特到高可变节点的LDPC编码器，高信息比特具有高重要性优先级，并且信息比特中具有低重要度优先级的低信息比特，其中低可变节点是具有低错误概率值的变量节点，高可变节点是在LDPC码的因子图中具有高错误概率值的可变节点。

65. 发明申请

US20050238110A1 Apparatus and method for reducing peak-to-average power ratio in orthogonal frequency division multiplexing communication system 有权
标题翻译：在正交频分复用通信系统中降低峰均功率比的装置和方法
公开(公告)号：US20050238110A1
公开(公告)日：2005-10-27
申请号：US11111217
申请日：2005-04-21
申请人： Sung-Ryul Yun , Sung-Eun Park , Jae-Yoel Kim
发明人： Sung-Ryul Yun , Sung-Eun Park , Jae-Yoel Kim
IPC分类号： H04J11/00 , H04K1/10 , H04L27/26
CPC分类号： H04L27/2618
摘要： Provided is a method for reducing a PAPR (Peak-to-Average Power Ratio) of a transmit signal in a broadband wireless communication. The method includes the steps of: assigning information signals to remaining tones except L reserved tones that are previously appointed among N tones, and performing an IFFT operation on the tones; detecting peaks that are greater than a predefined reference value from the IFFT-ed signal; generating signals for removing the detected peaks using P-waveform having impulse characteristic, the P-waveform being produced using the L reserved tones; generating a clipping signal by accumulating the signals; and simultaneously removing the peaks by adding the IFFT-ed signal and the clipping signal.
摘要翻译：提供了一种用于降低宽带无线通信中的发送信号的PAPR（峰均功率比）的方法。该方法包括以下步骤：将信息信号分配给除N个音调之前预先指定的L个保留音之外的剩余音调，并对该音调执行IFFT操作; 检测大于来自IFFT-ed信号的预定参考值的峰值; 产生用于使用具有脉冲特性的P波形去除检测到的峰值的信号，该P波形使用L个保留音产生; 通过累积信号产生限幅信号; 并通过加入IFFT-ed信号和限幅信号同时去除峰。

66. 发明授权

US07450661B2 Space-time coding method and apparatus in a mobile communication system 有权
标题翻译：移动通信系统中的时空编码方法和装置
公开(公告)号：US07450661B2
公开(公告)日：2008-11-11
申请号：US10838005
申请日：2004-05-03
申请人： Hong-Sil Jeong , Sung-Eun Park , Jae-Yoel Kim
发明人： Hong-Sil Jeong , Sung-Eun Park , Jae-Yoel Kim
IPC分类号： H04L27/00
CPC分类号： H04L1/0066 , H04L1/0618 , H04L1/1819 , H04L25/0204
摘要： Disclosed is a space-time coding apparatus in a mobile communication system. The space-time coding apparatus includes a de-mapper for converting a non-binary symbol into a stream of m×a binary bits, and transmits the stream of binary bits output from the de-mapper via a plurality of antennas. The number of the antennas is m, and a distributor separately distributes the m×a binary bits to the m antennas.
摘要翻译：公开了一种移动通信系统中的时空编码装置。时空编码装置包括：解映射器，用于将非二进制符号转换为m×二进制位流，并且通过多个天线发送从解映射器输出的二进制位流。天线的数量是m，分配器分别将m×m个二进制位分配给m个天线。

67. 发明授权

US07340006B2 Apparatus and method for reducing PAPR in OFDM communication system 有权
标题翻译： OFDM通信系统中减少PAPR的装置和方法
公开(公告)号：US07340006B2
公开(公告)日：2008-03-04
申请号：US10937241
申请日：2004-09-09
申请人： Sung-Ryul Yun , Sung-Eun Park , Jae-Yoel Kim
发明人： Sung-Ryul Yun , Sung-Eun Park , Jae-Yoel Kim
IPC分类号： H04K1/02
CPC分类号： H04L27/2618
摘要： A method for reducing a peak-to-average power ratio (PAPR) in an orthogonal frequency division multiplexing (OFDM) communication system including N carriers, among which L carriers are allocated to L reserved tones and data are carried by (N-L) remaining tones, wherein L is smaller than N, including generating an impulse signal from the L reserved tones; converting a phase of the generated impulse signal into a phase of a signal having a maximum peak value from among complex output signals obtained though inverse fast Fourier transform (IFFT) of the N carriers; scaling the generated impulse signal by the difference between the maximum peak value and a target power value; and complex-adding the scaled signal and the complex output signal after IFFT.
摘要翻译：一种用于降低包括N个载波的正交频分复用（OFDM）通信系统中的峰值与平均功率比（PAPR）的方法，其中将L个载波分配给L个保留音和数据由（NL）个剩余音调其中L小于N，包括从L个保留音产生脉冲信号; 将所产生的脉冲信号的相位从通过N个载波的快速傅里叶逆变换（IFFT）获得的复合输出信号中转换为具有最大峰值的信号的相位; 通过最大峰值与目标功率值之间的差来缩放产生的脉冲信号; 并在IFFT之后复合加上缩放的信号和复合输出信号。

68. 发明申请

US20070118786A1 Method and apparatus for receiving data in a communication system 有权
标题翻译：用于在通信系统中接收数据的方法和装置
公开(公告)号：US20070118786A1
公开(公告)日：2007-05-24
申请号：US11603377
申请日：2006-11-21
申请人： Chi-Woo Lim , Gyu-Bum Kyung , Sung-Eun Park , Jae-Yoel Kim , Hong-Sil Jeong , Seung-Hoon Choi
发明人： Chi-Woo Lim , Gyu-Bum Kyung , Sung-Eun Park , Jae-Yoel Kim , Hong-Sil Jeong , Seung-Hoon Choi
IPC分类号： H03M13/00 , H04L1/18
CPC分类号： H03M13/1105 , H03M13/29 , H03M13/2948 , H03M13/3723 , H03M13/6306 , H04L1/005 , H04L1/08 , H04L1/1607 , H04L1/1812 , H04L1/1829
摘要： A method and apparatus is provided for receiving data in a receiver of a communication system. In the receiver, a first calculator calculates a Log Likelihood Ratio (LLR) value of data transmitted from a transmitter, a decoder performs iterative decoding on the transmitted data using the LLR value calculated by the first calculator. A second calculator determines whether there is an error in the decoded data by calculating an error of the data decoded by the decoder. A storage stores an LLR value of the decoded data according to the determination result of the second calculator. An adder adds up the LLR value calculated by the first calculator and the LLR value stored in the storage. A controller performs a control operation such that if the data transmitted from the transmitter is retransmitted data, the decoder performs iterative decoding using the LLR value added by the adder, and if the data transmitted from the transmitter is not retransmitted data, the decoder performs iterative decoding using the LLR value calculated by the first calculator.
摘要翻译：提供了一种用于在通信系统的接收机中接收数据的方法和装置。在接收机中，第一计算器计算从发送器发送的数据的对数似然比（LLR）值，解码器使用由第一计算器计算出的LLR值对所发送的数据执行迭代解码。第二计算器通过计算由解码器解码的数据的误差来确定解码数据中是否存在错误。存储器根据第二计算器的确定结果存储解码数据的LLR值。加法器将由第一计算器计算的LLR值和存储在存储器中的LLR值相加。控制器执行控制操作，使得如果从发送器发送的数据是重发数据，则解码器使用由加法器添加的LLR值来执行迭代解码，并且如果从发送器发送的数据不是重传数据，则解码器执行迭代使用由第一计算器计算的LLR值进行解码。

69. 发明授权

US08014266B2 Apparatus and method for synchronization acquisition and cell ID search in wireless communication system 有权
标题翻译：无线通信系统中同步采集和小区ID搜索的装置和方法
公开(公告)号：US08014266B2
公开(公告)日：2011-09-06
申请号：US12460636
申请日：2009-07-22
申请人： Seung-Hoon Choi , June Moon , Sung-Eun Park , Chi-Woo Lim , Song-Nam Hong
发明人： Seung-Hoon Choi , June Moon , Sung-Eun Park , Chi-Woo Lim , Song-Nam Hong
IPC分类号： H04W4/00 , H04J3/06 , H04J11/00
CPC分类号： H04J11/0073 , H04L5/0007 , H04L27/2655 , H04L27/2675
摘要： A apparatus and method for allocating synchronization acquisition sequence in a time domain and allocating a cell ID search sequence in a frequency domain. In a method for transmitting a synchronization signal of a base station in a wireless communication system, a binary frequency-domain preamble sequence predetermined for cell ID search and a binary time-domain preamble sequence predetermined for synchronization acquisition are used to determine a complex time-domain preamble sequence except the binary time-domain preamble sequence among the time-domain preamble sequences that are generated according to an Inverse Fast Fourier Transform (IFFT) operation on the binary frequency-domain preamble sequence. The complex time-domain preamble sequence and the binary time-domain preamble sequence are transmitted to a mobile station.
摘要翻译：一种用于在时域中分配同步捕获序列并在频域中分配小区ID搜索序列的装置和方法。在用于在无线通信系统中发送基站的同步信号的方法中，使用预定用于小区ID搜索的二进制频域前导码序列和预定用于同步获取的二进制时域前导码序列来确定复合时间 - 除了根据对二进制频域前导序列的快速傅里叶逆变换（IFFT）操作而生成的时域前导序列之中的二进制时域前导序列之外的域前导序列。将复杂时域前导码序列和二进制时域前导码序列发送到移动台。

70. 发明申请

US20100020674A1 Apparatus and method for synchronization acquisition and cell ID search in wireless communication system 有权
标题翻译：无线通信系统中同步采集和小区ID搜索的装置和方法
公开(公告)号：US20100020674A1
公开(公告)日：2010-01-28
申请号：US12460636
申请日：2009-07-22
申请人： Seung-Hoon Choi , June Moon , Sung-Eun Park , Chi-Woo Lim , Song-Nam Hong
发明人： Seung-Hoon Choi , June Moon , Sung-Eun Park , Chi-Woo Lim , Song-Nam Hong
IPC分类号： H04J11/00 , H04W8/00
CPC分类号： H04J11/0073 , H04L5/0007 , H04L27/2655 , H04L27/2675
摘要： A apparatus and method for allocating synchronization acquisition sequence in a time domain and allocating a cell ID search sequence in a frequency domain. In a method for transmitting a synchronization signal of a base station in a wireless communication system, a binary frequency-domain preamble sequence predetermined for cell ID search and a binary time-domain preamble sequence predetermined for synchronization acquisition are used to determine a complex time-domain preamble sequence except the binary time-domain preamble sequence among the time-domain preamble sequences that are generated according to an Inverse Fast Fourier Transform (IFFT) operation on the binary frequency-domain preamble sequence. The complex time-domain preamble sequence and the binary time-domain preamble sequence are transmitted to a mobile station.
摘要翻译：一种用于在时域中分配同步捕获序列并在频域中分配小区ID搜索序列的装置和方法。在用于在无线通信系统中发送基站的同步信号的方法中，使用预定用于小区ID搜索的二进制频域前导码序列和预定用于同步获取的二进制时域前导码序列来确定复合时间 - 除了根据对二进制频域前导序列的快速傅里叶逆变换（IFFT）操作而生成的时域前导序列之中的二进制时域前导序列之外的域前导序列。将复杂时域前导码序列和二进制时域前导码序列发送到移动台。

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