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1. 发明申请

US20080043858A1 Method for Constructing Frame Preamble in Ofdm Wireless Communication System, and Method for Acquiring Frame Synchronization and Searching Cells Using Preamble 审中-公开
标题翻译：在OFDM无线通信系统中构造帧前缀的方法及使用前导码获取帧同步和搜索单元的方法
公开(公告)号：US20080043858A1
公开(公告)日：2008-02-21
申请号：US10584716
申请日：2004-10-27
申请人： Hyoung-Soo Lim , Choong-Il Yeh , Yu-Ro Lee , Dong-Seung Kwon , Seung-Ku Hwang
发明人： Hyoung-Soo Lim , Choong-Il Yeh , Yu-Ro Lee , Dong-Seung Kwon , Seung-Ku Hwang
IPC分类号： H04K1/10
CPC分类号： H04J11/00 , H04L27/2613 , H04L27/2656 , H04L27/2675
摘要： Disclosed are a method for constructing a frame preamble in an OFDM wireless communication system, and a method for acquiring frame synchronization and searching cells using the preamble. The preamble is arranged at the beginning of a frame and constructed of a pattern repeated an integer number of times, and a CP. The pattern has a length shorter than a single OFDM symbol interval. The length of the repetitive pattern is not limited to an integer number of times a single OFDM symbol interval. Frame synchronization can be acquired by observing cross-correlation of a received signal and reference patterns and detecting the moment when the absolute value of the cross-correlation exceeds a predetermined threshold. Otherwise, frame synchronization can be acquired by observing auto-correlation of the received signal using repeated patterns included in the received signal and detecting the moment when the absolute value of the auto-correlation becomes the maximum value.
摘要翻译：公开了一种在OFDM无线通信系统中构造帧前同步码的方法，以及用于使用前置码获取帧同步和搜索小区的方法。前导码被布置在帧的开始处，并且由重复整数次的模式和CP构成。该模式的长度短于单个OFDM符号间隔。重复模式的长度不限于单个OFDM符号间隔的整数倍。可以通过观察接收信号和参考模式的互相关，并且检测互相关绝对值超过预定阈值的时刻来获取帧同步。否则，通过使用包含在接收信号中的重复模式来观察接收信号的自相关，并且检测自相关的绝对值成为最大值的时刻，可以获取帧同步。

2. 发明申请

US20080267111A1 Data Transmitting Method in Wireless Communication System 审中-公开
标题翻译：无线通信系统中的数据传输方法
公开(公告)号：US20080267111A1
公开(公告)日：2008-10-30
申请号：US12094549
申请日：2006-11-24
申请人： Hyoung-Soo Lim , Dong-Seung Kwon , Chung-Gu Kang , Hyun-Seok Ryu
发明人： Hyoung-Soo Lim , Dong-Seung Kwon , Chung-Gu Kang , Hyun-Seok Ryu
IPC分类号： H04B7/14
CPC分类号： H04B7/0671 , H04B7/15592
摘要： In a method for transmitting data from a first node to a second node through first and second relay units in a wireless communication system: a) a first symbol is transmitted from the first node to the second node and the first relay unit during a first time slot section; b) the first symbol, which is received from the first node, is transmitted from the first relay unit to the second node during a second time slot section; c) a second symbol is transmitted from the first node to the second node and the second relay unit during the second time slot section; and d) the second symbol, which is received from the first node, is transmitted from the second relay unit to the second node during a third time slot section.
摘要翻译：一种用于在无线通信系统中通过第一和第二中继单元从第一节点传送数据到第二节点的方法：a）第一符号在第一时间从第一节点发射到第二节点和第一中继单元槽部分 b）在第二时隙部分期间从第一节点接收的第一符号从第一中继单元发送到第二节点; c）在第二时隙部分期间从第一节点向第二节点和第二中继单元发送第二符号; 以及d）在第三时隙部分期间从第一中继单元向第二节点发送从第一节点接收的第二符号。

3. 发明申请

US20080240276A1 Multi-Input Multi-Output System For Enhancing Transmission Performance 失效
标题翻译：用于提高传输性能的多输入多输出系统
公开(公告)号：US20080240276A1
公开(公告)日：2008-10-02
申请号：US11667711
申请日：2005-08-10
申请人： Young-Seog Song , Seong-Rag Kim , In-Kyeong Choi , Choong-ll Yeh , Seung-Joon Lee , Hyoung-Soo Lim , Kwang-Jae Lim , Yu-Ro Lee , Jong-Ee Oh , Dong-Seung Kwon , Seung-Ku Hwang , Chung-Yong Lee , Myeong-Cheol Shin
发明人： Young-Seog Song , Seong-Rag Kim , In-Kyeong Choi , Choong-ll Yeh , Seung-Joon Lee , Hyoung-Soo Lim , Kwang-Jae Lim , Yu-Ro Lee , Jong-Ee Oh , Dong-Seung Kwon , Seung-Ku Hwang , Chung-Yong Lee , Myeong-Cheol Shin
IPC分类号： H04L5/12 , H04L27/28
CPC分类号： H04B7/061 , H04B7/0669 , H04B7/0691 , H04B7/08 , H04L1/0003 , H04L1/0637 , H04L1/0675
摘要： The present invention relates to a multi-input multi-output (MIMO) system for enhancing transmission performance. The MIMO system uses space-time encoding and transmit antenna selection methods, and includes a transmitter (100) and a receiver (200). The transmitter (100) includes N transmit antennas (130-1, 130-4) that are more than M tansrni antennas (130-1, 130-3) used for transmitting a signal to space channel, selects the M transmit antennas (130-1, 130-3) among the N transmit antennas (130-3 130-4), and transmits symbol by space-time encoding the symbol. The receiver (200) includes M receive antenna (120-1, 210-2) for receiving a signal from the space channel, detects an information symbol by using the signal received through the receive antenna (210-1, 210-2), generates transmit antenna selection information for selecting M transmit antennas (130-1, 130-3) among transmit antennas (i30-1, . . . 7130-4) with reference to a channel estimate, and returns the information to the transmitter.
摘要翻译：本发明涉及用于增强传输性能的多输入多输出（MIMO）系统。 MIMO系统使用时空编码和发射天线选择方法，并且包括发射机（100）和接收机（200）。发射机（100）包括比用于将信号发射到空间信道的M多个天线（130-1,30-3）多的N个发射天线（130-1,140-4），选择M个发射天线（130 -1,130-3），并且通过对该符号进行时空编码来发送符号。接收器（200）包括用于从空间信道接收信号的M个接收天线（120-1,210-2），通过使用通过接收天线（210-1,210-2）接收的信号来检测信息符号，生成用于参考信道估计在发射天线（i 30-1，...，7130-4）中选择M个发射天线（130-1,130-3）的发射天线选择信息，并将该信息返回给发射机。

4. 发明申请

US20070263743A1 Method for Allocating Data and Pilots, and Transmitting Method and Device and Receiving Method and Device Using the Same in Orthogonal Frequency Division Multiple Access System 有权
标题翻译：分配数据和导频的方法，以及正交频分多址系统的发送方法及装置及其接收方法及装置
公开(公告)号：US20070263743A1
公开(公告)日：2007-11-15
申请号：US10583593
申请日：2004-07-22
申请人： Yu-Ro Lee , Jonge-Ee Oh , Choong-Il Yeh , Hyoung-Soo Lim , Dong-Seung Kwon
发明人： Yu-Ro Lee , Jonge-Ee Oh , Choong-Il Yeh , Hyoung-Soo Lim , Dong-Seung Kwon
IPC分类号： H04B7/02
CPC分类号： H04B7/12 , H04L5/0044 , H04L5/0048 , H04W72/00
摘要： Disclosed is a method for allocating data and pilots, a transmitting method and device, a receiving method and device in an OFDMA system. A terminal partitions subcarrier groups and symbols from an uplink channel based on a basic pilot pattern generated by a specific reference, receives at least one subchannel based on the partitioned subcarrier groups and symbols, hops the subcarrier groups caused by the subchannel according to hopping patterns, allocates data, and differently positions the pilots per subcarrier group based on the basic pilot pattern. Accordingly, the probability of pilot collision between adjacent cells is reduced, and accuracy of channel estimation is increased through boosting the pilot subcarrier power.
摘要翻译：公开了一种在OFDMA系统中分配数据和导频的方法，发送方法和设备，接收方法和设备。终端基于由特定基准产生的基本导频模式，从上行链路信道分割子载波组和符号，根据划分的子载波组和符号接收至少一个子信道，根据跳频图案跳过由子信道引起的子载波组，分配数据，并且基于基本导频模式不同地定位每个子载波组的导频。因此，相邻小区之间的导频冲突的概率降低，并且通过提升导频副载波功率来增加信道估计的精度。

5. 发明申请

US20070140104A1 System and method for timing acquisition and carrier frequency offset estimation in wireless communication based on OFDM 有权
标题翻译：基于OFDM的无线通信定时采集和载波频率偏移估计的系统和方法
公开(公告)号：US20070140104A1
公开(公告)日：2007-06-21
申请号：US11521171
申请日：2006-09-14
申请人： Hyoung-Soo Lim , Dong-Seung Kwon
发明人： Hyoung-Soo Lim , Dong-Seung Kwon
IPC分类号： H04J11/00 , H04J3/06
CPC分类号： H04L27/2657 , H04L27/0014 , H04L27/2656 , H04L27/2662 , H04L27/2679 , H04L2027/0046 , H04L2027/0067
摘要： The present invention relates to a method for timing acquisition and carrier frequency offset estimation of an OFDM communication system and an apparatus using the same. For this purpose the present invention provides a method for calculating at least one auto-correlation and calculating an observation value by performing a sliding sum on the at least one auto-correlation, and calculating a peak point of an absolute value of the observation as frame timing. In addition, the present invention provides a method for generating a third OFDM symbol that is generated by delaying a second OFDM symbol, calculating an observation value through the second and third OFDM symbols, and calculating a phase difference from a result of multiplication of the observation value and a conjugate complex value of the observation value such that a carrier frequency offset can be estimated. According to the present invention, the number of OFDM symbols is sufficient for obtaining timing acquisition with high reliability, and the offset estimation algorithm having a lower implementation complexity is provided such that superior performance is expected and carrier frequency offset with high reliability can be achieved.
摘要翻译：本发明涉及一种用于OFDM通信系统的定时获取和载波频率偏移估计的方法及其使用方法。为此，本发明提供了一种通过对至少一个自相关执行滑移和来计算至少一个自相关并计算观测值的方法，并且将观测的绝对值的峰值计算为帧定时。另外，本发明提供一种生成通过延迟第二OFDM符号而产生的第三OFDM符号的方法，通过第二和第三OFDM符号来计算观测值，并且从观测的乘法结果中计算出相位差值和观测值的共轭复值，使得可以估计载波频率偏移。根据本发明，OFDM符号的数量足以获得具有高可靠性的定时获取，并且提供具有较低实现复杂度的偏移估计算法，从而可以期待优异的性能，并且可以实现具有高可靠性的载波频率偏移。

6. 发明授权

US08121208B2 Multi-input multi-output system for enhancing transmission performance 失效
标题翻译：多输入多输出系统，提高传输性能
公开(公告)号：US08121208B2
公开(公告)日：2012-02-21
申请号：US11667711
申请日：2005-08-10
申请人： Young-Seog Song , Seong-Rag Kim , In-Kyeong Choi , Choong-Il Yeh , Seung-Joon Lee , Hyoung-Soo Lim , Kwang-Jae Lim , Yu-Ro Lee , Jong-Ee Oh , Dong-Seung Kwon , Seung-Ku Hwang , Chung-Yong Lee , Myeong-Cheol Shin
发明人： Young-Seog Song , Seong-Rag Kim , In-Kyeong Choi , Choong-Il Yeh , Seung-Joon Lee , Hyoung-Soo Lim , Kwang-Jae Lim , Yu-Ro Lee , Jong-Ee Oh , Dong-Seung Kwon , Seung-Ku Hwang , Chung-Yong Lee , Myeong-Cheol Shin
IPC分类号： H04L5/12
CPC分类号： H04B7/061 , H04B7/0669 , H04B7/0691 , H04B7/08 , H04L1/0003 , H04L1/0637 , H04L1/0675
摘要： The present invention relates to a multi-input multi-output (MIMO) system for enhancing transmission performance. The MIMO system uses space-time encoding and transmit antenna selection methods, and includes a transmitter (100) and a receiver (200). The transmitter (100) includes N transmit antennas (130-1, 130-4) that are more than M transmit antennas (130-1, 130-3) used for transmitting a signal to space channel, selects the M transmit antennas (130-1, 130-3) among the N transmit antennas (130-3 130-4), and transmits symbol by space-time encoding the symbol. The receiver (200) includes M receive antenna (120-1, 210-2) for receiving a signal from the space channel, detects an information symbol by using the signal received through the receive antenna (210-1, 210-2), generates transmit antenna selection information for selecting M transmit antennas (130-1, 130-3) among transmit antennas (i30-1, . . . 7130-4) with reference to a channel estimate, and returns the information to the transmitter.
摘要翻译：本发明涉及用于增强传输性能的多输入多输出（MIMO）系统。 MIMO系统使用时空编码和发射天线选择方法，并且包括发射机（100）和接收机（200）。发射机（100）包括比用于将信号发射到空间信道的M个发射天线（130-1,130-3）多的N个发射天线（130-1,140-4），选择M个发射天线 -1,130-3），并且通过对该符号进行空时编码来发送符号。接收器（200）包括用于从空间信道接收信号的M个接收天线（120-1,210-2），通过使用通过接收天线（210-1,210-2）接收的信号来检测信息符号，生成发送天线选择信息，用于参照信道估计来选择发射天线（i30-1，...，...，7130-4）中的M个发射天线（130-1,130-3），并将该信息返回给发射机。

7. 发明授权

US07903753B2 Structured space-time code achieving the full diversity and full rate and generating method thereof, and multi-input multi-output system 有权
标题翻译：结构化时空码实现全分集和全速率及其生成方法，以及多输入多输出系统
公开(公告)号：US07903753B2
公开(公告)日：2011-03-08
申请号：US11574725
申请日：2005-02-28
申请人： Seung-Joon Lee , Choong-Il Yeh , Dong-Seung Kwon , Seung-Ku Hwang , Hyoung-Soo Lim , In-Kyeong Choi , Jong-Ee Oh , Kwang-Jae Lim , Seong-Rag Kim , Young-Seog Song , Yu-Ro Lee , Seong-Keun Oh , Moon-Il Lee
发明人： Seung-Joon Lee , Choong-Il Yeh , Dong-Seung Kwon , Seung-Ku Hwang , Hyoung-Soo Lim , In-Kyeong Choi , Jong-Ee Oh , Kwang-Jae Lim , Seong-Rag Kim , Young-Seog Song , Yu-Ro Lee , Seong-Keun Oh , Moon-Il Lee
IPC分类号： H04B7/02
CPC分类号： H04B7/02 , H04B7/0697 , H04L1/0612
摘要： A space-time code used for a transmitter to transmit a plurality of data symbols to a receiver in a MIMO system, the space-time code including a code word matrix for transmitting an amount of data symbols corresponding to a product of the number of transmit antennas and a spatial multiplexing rate during one block period, wherein a row index indicates combined signals transmitted through different transmit antennas and a column index indicates time slots that correspond to the number of transmit antennas, and wherein the number of data symbols allocated to each transmit antenna in a code block corresponds to the spatial multiplexing rate, and the data symbols are combined by different combining coefficients for each transmit antenna at every time slot, and simultaneously transmitted through different transmit antennas, and each transmit antenna transmits a different set of data symbols at every time slot.
摘要翻译：用于发射机的空时码将多个数据符号发送到MIMO系统中的接收机，所述时空码包括用于发送对应于发射次数的乘积的数据符号量的码字矩阵天线和一个块周期内的空间多路复用率，其中行索引表示通过不同发射天线发射的组合信号，列索引指示对应于发射天线数的时隙，并且其中分配给每个发射的数据符号数代码块中的天线对应于空间复用速率，并且通过在每个时隙对每个发射天线的不同组合系数组合数据符号，并且同时通过不同的发射天线发射，并且每个发射天线发射不同的数据符号集合在每个时间段

8. 发明授权

US07796695B2 Method for allocating data and pilots, and transmitting method and device and receiving method and device using the same in orthogonal frequency division multiple access system 有权
标题翻译：用于分配数据和导频的方法，以及在正交频分多址系统中发送方法和装置以及使用其的接收方法和装置
公开(公告)号：US07796695B2
公开(公告)日：2010-09-14
申请号：US10583593
申请日：2004-07-22
申请人： Yu-Ro Lee , Jong-Ee Oh , Choong-II Yeh , Hyoung-Soo Lim , Dong-Seung Kwon
发明人： Yu-Ro Lee , Jong-Ee Oh , Choong-II Yeh , Hyoung-Soo Lim , Dong-Seung Kwon
IPC分类号： H04K1/10
CPC分类号： H04B7/12 , H04L5/0044 , H04L5/0048 , H04W72/00
摘要： Disclosed is a method for allocating data and pilots, a transmitting method and device, a receiving method and device in an OFDMA system. A terminal partitions subcarrier groups and symbols from an uplink channel based on a basic pilot pattern generated by a specific reference, receives at least one subchannel based on the partitioned subcarrier groups and symbols, hops the subcarrier groups caused by the subchannel according to hopping patterns, allocates data, and differently positions the pilots per subcarrier group based on the basic pilot pattern. Accordingly, the probability of pilot collision between adjacent cells is reduced, and accuracy of channel estimation is increased through boosting the pilot subcarrier power.
摘要翻译：公开了一种在OFDMA系统中分配数据和导频的方法，发送方法和设备，接收方法和设备。终端基于由特定基准产生的基本导频模式，从上行链路信道分割子载波组和符号，根据划分的子载波组和符号接收至少一个子信道，根据跳频图案跳过由子信道引起的子载波组，分配数据，并且基于基本导频模式不同地定位每个子载波组的导频。因此，相邻小区之间的导频冲突的概率降低，并且通过提升导频副载波功率来增加信道估计的精度。

9. 发明授权

US07757155B2 Signal transmitting and receiving device and method of mobile communication system 有权
标题翻译：信号发射和接收装置及移动通信系统的方法
公开(公告)号：US07757155B2
公开(公告)日：2010-07-13
申请号：US11660152
申请日：2004-11-10
申请人： Kwang-Jae Lim , Hyoung-Soo Lim , Choomg-Il Yeh , Yu-Ro Lee , Jong-Ee Oh , Dong-Seung Kwon
发明人： Kwang-Jae Lim , Hyoung-Soo Lim , Choomg-Il Yeh , Yu-Ro Lee , Jong-Ee Oh , Dong-Seung Kwon
IPC分类号： H03M13/00
CPC分类号： H04L27/2608
摘要： Disclosed is a signal transmission method in a mobile communication system. Unequal error protection (UEP) ratios are determined so that the bits may have different received qualities according to the weights of the bits. The bits are repeated by a bit sequence repeater (210) according to the determined UEP ratios to generate a repeated bit sequence having a predetermined number of bits. The generated repeated bit, sequence is interleaved by an interleaver (220) and the interleaved bit sequence is symbol-mapped by a symbol-mapper (230) to generate a transmission symbol sequence, and the generated transmission symbol sequence is transmitted by the transmitter to a receiver. Furthermore, also a corresponding signal reception method, a corresponding signal transmitter and a corresponding signal receiver are disclosed.
摘要翻译：公开了一种移动通信系统中的信号传输方法。确定不相等的误差保护（UEP）比，使得比特可以根据比特的权重具有不同的接收质量。根据确定的UEP比例，比特由比特序列中继器（210）重复以产生具有预定比特数的重复比特序列。所生成的重复比特序列由交织器（220）进行交织，并且交织的比特序列由符号映射器（230）进行符号映射以产生传输符号序列，并且所生成的传输符号序列由发射机发射到接收器此外，还公开了相应的信号接收方法，相应的信号发射机和对应的信号接收机。

10. 发明申请

US20070296616A1 Signal Transmitting and Receiving Device and Method of Mobile Communication System 有权
标题翻译：信号发射与接收装置及移动通信系统的方法
公开(公告)号：US20070296616A1
公开(公告)日：2007-12-27
申请号：US11660152
申请日：2004-11-10
申请人： Kwang-Jae Lim , Hyoung-Soo Lim , Choomg-II Yeh , Yu-Ro Lee , Jong-Ee Oh , Dong-Seung Kwon
发明人： Kwang-Jae Lim , Hyoung-Soo Lim , Choomg-II Yeh , Yu-Ro Lee , Jong-Ee Oh , Dong-Seung Kwon
IPC分类号： H04B7/24 , H03M13/35 , H04Q7/38
CPC分类号： H04L27/2608
摘要： Disclosed is a signal transmission method in a mobile communication system. Unequal error protection (UEP) ratios are determined so that the bits may have different received qualities according to the weights of the bits. The bits are repeated by a bit sequence repeater (210) according to the determined UEP ratios to generate a repeated bit sequence having a predetermined number of bits. The generated repeated bit, sequence is interleaved by an interleaver (220) and the interleaved bit sequence is symbol-mapped by a symbol-mapper (230) to generate a transmission symbol sequence, and the generated transmission symbol sequence is transmitted by the transmitter to a receiver. Furthermore, also a corresponding signal reception method, a corresponding signal transmitter and a corresponding signal receiver are disclosed.
摘要翻译：公开了一种移动通信系统中的信号传输方法。确定不相等的误差保护（UEP）比，使得比特可以根据比特的权重具有不同的接收质量。根据确定的UEP比例，比特由比特序列中继器（210）重复以产生具有预定比特数的重复比特序列。所生成的重复比特序列由交织器（220）进行交织，并且交织的比特序列由符号映射器（230）进行符号映射以产生传输符号序列，并且所生成的传输符号序列由发射机发射到接收器此外，还公开了相应的信号接收方法，相应的信号发射机和对应的信号接收机。

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