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1. 发明授权

US08004995B2 Method and apparatus for managing a cooperative diversity system 有权
标题翻译：用于管理协作分集系统的方法和装置
公开(公告)号：US08004995B2
公开(公告)日：2011-08-23
申请号：US11755310
申请日：2007-05-30
申请人： Tae In Hyon , Jae Myoung Kim , Jae Hak Chung , Sang Jo Yoo , Sung Hwan Sohn
发明人： Tae In Hyon , Jae Myoung Kim , Jae Hak Chung , Sang Jo Yoo , Sung Hwan Sohn
IPC分类号： H04W4/00
CPC分类号： H04B7/026 , H04W52/146 , H04W52/36
摘要： A cooperative diversity method and apparatus that can minimize interference and maximize an efficiency of a transmission channel between terminals of a cooperative diversity pair, the method including: determining a pair of terminals to be a cooperative diversity pair according to a spectrum sensing result of a cognitive radio (CR); selecting a subchannel through which data is exchanged between the pair of terminals; and transmitting the data between the pair of terminals through the selected subchannel.
摘要翻译：一种协作分集方法和装置，其可以最小化协作分集对的终端之间的干扰并最大化传输信道的效率，所述方法包括：根据认知的频谱感知结果确定一对终端为协作分集对无线电（CR）; 选择在所述一对终端之间通过其交换数据的子信道; 以及通过所选择的子信道在一对终端之间传送数据。

2. 发明授权

US07889814B2 Transmitting and receiving apparatus for supporting transmit antenna diversity using space-time block code 有权
标题翻译：使用时空块码支持发射天线分集的发射和接收装置
公开(公告)号：US07889814B2
公开(公告)日：2011-02-15
申请号：US11804126
申请日：2007-05-17
申请人： Chan-Soo Hwang , Vahid Tarokh , Seung-Hoon Nam , Jae-Hak Chung , Yung-Soo Kim
发明人： Chan-Soo Hwang , Vahid Tarokh , Seung-Hoon Nam , Jae-Hak Chung , Yung-Soo Kim
IPC分类号： H04L27/06
CPC分类号： H04L1/0618 , H04B7/0669 , H04B7/0697 , H04B7/0891 , H04L1/0643
摘要： A transmitter and a receiver are disclosed herein that support transmit antenna diversity using space-time block coding in a wireless communication system. The transmitter produces symbol combinations containing, as their elements, input symbols, the inversions and conjugates of the symbols, and symbols obtained by rotating the phases of the symbols once, forms a matrix having symbols in at least two columns orthogonal to each other with the symbol combinations, and transmits the matrix. The receiver detects symbols that minimize maximum likelihood (ML) decoding metrics over all possible symbols using channel gains from transmit antennas to a receive antenna. Also, the receiver selects candidate symbols among all possible symbols according to the characteristics of transmitted modulation symbols and detects symbols that minimize the ML decoding metrics.
摘要翻译：本文公开的发射器和接收器在无线通信系统中支持使用空时块编码的发射天线分集。发射机产生符号组合，其包含输入符号，符号的反转和共轭以及通过旋转符号的相位获得的符号一次作为其元素，形成具有彼此正交的至少两列中的符号的矩阵，符号组合，并传输矩阵。接收机通过使用从发射天线到接收天线的信道增益，检测所有可能符号上的最大似然（ML）解码度量的符号。此外，接收机根据发送的调制符号的特性来选择所有可能符号中的候选符号，并且检测使ML解码度量最小化的符号。

3. 发明授权

US07881277B2 Communication method and apparatus for distributed network system where cognitive radio technology is applied 有权
标题翻译：应用认知无线电技术的分布式网络系统的通信方法和装置
公开(公告)号：US07881277B2
公开(公告)日：2011-02-01
申请号：US11865910
申请日：2007-10-02
申请人： Tae In Hyon , Jae Myoung Kim , Jae Hak Chung , Sang Jo Yoo , Kyoung Jin Jo
发明人： Tae In Hyon , Jae Myoung Kim , Jae Hak Chung , Sang Jo Yoo , Kyoung Jin Jo
IPC分类号： H04B7/212 , H04B1/00 , H04J3/16 , H04L12/43
CPC分类号： H04W72/0406 , H04W16/14 , H04W72/02 , H04W84/18
摘要： A communication method and apparatus for a distributed network system where a cognitive radio (CR) technology is used. A communication method of a distributed network system where the CR technology is used includes transmitting adjacent channel information, from at least one first neighbor node adjacent to a source node, first adjacent channel information of the at least one first neighbor node using a pulse signal according to a request of the source node; by transmitting, from at least one second neighbor node adjacent to a destination node, second adjacent channel information of the at least one second neighbor node to the destination node using a pulse signal according to a request of the destination node; and exchanging data between the source node and the destination node using a channel that is not currently used, according to the transmitted adjacent channel information.
摘要翻译：一种使用认知无线电（CR）技术的分布式网络系统的通信方法和装置。使用CR技术的分布式网络系统的通信方法包括：使用脉冲信号，从邻近源节点的至少一个第一相邻节点发送相邻信道信息，所述第一相邻节点使用脉冲信号到源节点的请求; 通过根据目的地节点的请求，使用脉冲信号从至少一个邻近目的地节点的第二邻居节点向所述目的地节点发送所述至少一个第二相邻节点的第二相邻信道信息; 以及根据所发送的相邻信道信息，使用当前未使用的信道在源节点和目的地节点之间交换数据。

4. 发明授权

US07876733B2 Method and apparatus for communicating by use of relaying system in a cognitive radio technique 有权
标题翻译：在认知无线电技术中使用中继系统进行通信的方法和装置
公开(公告)号：US07876733B2
公开(公告)日：2011-01-25
申请号：US11853348
申请日：2007-09-11
申请人： Tae In Hyon , Jae Myoung Kim , Jae Hak Chung , Sang Jo Yoo , Young Gun Ji
发明人： Tae In Hyon , Jae Myoung Kim , Jae Hak Chung , Sang Jo Yoo , Young Gun Ji
IPC分类号： H04B7/216
CPC分类号： H04B7/2606 , H04L27/2608 , H04W16/14 , H04W16/26 , H04W72/02 , H04W84/047
摘要： A communication method and apparatus of a cognitive radio (CR) environment using a relaying system while not interfering with a communication system having a priority right to use a frequency band, the communication method including: listening to fundamental channel (FCH) information and/or downlink/uplink (DL/UL) map information of a frame transmitted in the relaying system; obtaining a transmission signal of the relaying system using the FCH information and/or the DL/UL map information; orthogonally encoding data to be transmitted in the CR environment based on the obtained transmission signal; and transmitting the orthogonally encoded data via a determined channel that is used in the relaying system. Accordingly, aspects of the present invention can retrieve radio resources unused in the CR environment more easily.
摘要翻译：一种使用中继系统的认知无线电（CR）环境的通信方法和装置，同时不干扰具有使用频带优先权的通信系统，所述通信方法包括：收听基本信道（FCH）信息和/或在中继系统中发送的帧的下行链路/上行链路（DL / UL）映射信息; 使用FCH信息和/或DL / UL映射信息获得中继系统的传输信号; 基于获得的发送信号对在CR环境中发送的数据进行正交编码; 以及经由在中继系统中使用的确定的信道来发送正交编码的数据。因此，本发明的方面可以更容易地检索CR环境中未被使用的无线电资源。

5. 发明授权

US07746947B2 Method and apparatus for transmitting/receiving data in a multiple-input multiple-output communication system 有权
标题翻译：用于在多输入多输出通信系统中发送/接收数据的方法和装置
公开(公告)号：US07746947B2
公开(公告)日：2010-06-29
申请号：US11274662
申请日：2005-11-15
申请人： Sung-Jin Kim , Ho-Jin Kim , Kwang-Bok Lee , Ki-Ho Kim , Hyoung-Woon Park , Jae-Hak Chung , Chan-Byoung Chae , Won-Il Roh
发明人： Sung-Jin Kim , Ho-Jin Kim , Kwang-Bok Lee , Ki-Ho Kim , Hyoung-Woon Park , Jae-Hak Chung , Chan-Byoung Chae , Won-Il Roh
IPC分类号： H04B7/04
CPC分类号： H04B7/0617 , H04B7/0417 , H04B7/0443 , H04B7/0452 , H04B7/0634
摘要： A multiple-input multiple-output (MIMO) communication system is provided for communication between a transmission apparatus having a plurality of transmission antennas and a reception apparatus having a plurality of reception antennas. The reception apparatus performs singular value decomposition (SVD) on channel information for a channel established to the transmission apparatus, and feeds back the SVD-decomposed channel information to the transmission apparatus. The transmission apparatus receives the SVD-decomposed channel information from the reception apparatus, performs QR decomposition on the received SVD-decomposed channel information, and sets multiple transmission antennas to be allocated to the channel, thereby performing beamforming.
摘要翻译：提供了一种多输入多输出（MIMO）通信系统，用于具有多个发送天线的发送装置与具有多个接收天线的接收装置之间的通信。接收装置对发送装置建立的信道的信道信息进行奇异值分解（SVD），并将SVD分解信道信息反馈给发送装置。发送装置从接收装置接收SVD分解信道信息，对所接收的SVD分解信道信息进行QR分解，并设定要分配给信道的多个发送天线，从而进行波束形成。

6. 发明授权

US07539263B2 Method for transmitting and receiving preamble sequences in an orthogonal frequency division multiplexing communication system using a multiple input multiple output scheme 有权
标题翻译：用于在使用多输入多输出方案的正交频分复用通信系统中发送和接收前导序列的方法
公开(公告)号：US07539263B2
公开(公告)日：2009-05-26
申请号：US11332531
申请日：2006-01-13
申请人： Young-Ho Jung , Jae-Hak Chung , Seung-Hoon Nam
发明人： Young-Ho Jung , Jae-Hak Chung , Seung-Hoon Nam
IPC分类号： H04B7/02
CPC分类号： H04L1/0618 , H04L27/2613 , H04L27/2614 , H04L27/2656 , H04L27/2657
摘要： In an orthogonal frequency division multiplexing (OFDM) communication system using multiple transmit antennas, a first base sequence with a first length is segmented into a first number of second sequences to which different time offsets are applied. Subsequences of a first preamble sequence corresponding to the number of second sequences are generated. A second base sequence with a second length is segmented into a second number of third sequences to which different time offsets are applied. Subsequences of a second preamble sequence corresponding to the number of third sequences are generated. A subsequence is selected from the subsequences of the first preamble sequence and is transmitted through a transmit antenna in a first time interval. A third preset number of subsequences are selected from the subsequences of the second preamble sequence, and are mapped and transmitted to the transmit antennas in a second time interval.
摘要翻译：在使用多个发射天线的正交频分复用（OFDM）通信系统中，具有第一长度的第一基本序列被分割成应用不同时间偏移的第一数目的第二序列。产生与第二序列数相对应的第一前序列序列的子序列。具有第二长度的第二基本序列被分割成施加不同时间偏移的第二数量的第三序列。产生与第三序列数相对应的第二前序列序列的子序列。从第一前导码序列的子序列中选择子序列，并且通过发射天线在第一时间间隔中发送。从第二前导序列的子序列中选择第三预设数量的子序列，并且在第二时间间隔中映射并发送到发射天线。

7. 发明授权

US07483719B2 Method for grouping transmission antennas in mobile communication system including multiple transmission/reception antennas 有权
标题翻译：在包括多个发送/接收天线的移动通信系统中对发送天线进行分组的方法
公开(公告)号：US07483719B2
公开(公告)日：2009-01-27
申请号：US10988947
申请日：2004-11-15
申请人： Eung-Sun Kim , Jong-Hyeuk Lee , Jae-Hak Chung , Ho-Jin Kim , Joo-Hwan Chun , Kyung-Chun Lee , Il-Han Kim
发明人： Eung-Sun Kim , Jong-Hyeuk Lee , Jae-Hak Chung , Ho-Jin Kim , Joo-Hwan Chun , Kyung-Chun Lee , Il-Han Kim
IPC分类号： H04M1/00
CPC分类号： H04B7/0874 , H04B7/0691
摘要： Disclosed is a method for configuring transmission antenna groups in a mobile communication system with multiple transmission antennas and multiple reception antennas. The method includes the steps of: receiving a first matrix having a size of ‘Nt×Nt’, which corresponds to Nt number of transmission antennas, fedback from the mobile terminal, generating combinations of sub-matrixes of the first matrix corresponding to Nr number of reception antennas, and calculating sums of maximum eigenvalues; determining combinations of the sub-matrixes having a maximum value from among the calculated sums of eigenvalues to be transmission antenna groups for the Nt number of transmission antennas; and transmitting different relevant symbols from each other through the transmission antenna groups.
摘要翻译：公开了一种在具有多个发送天线和多个接收天线的移动通信系统中配置发送天线组的方法。该方法包括以下步骤：从移动终端接收具有大小为NtxNt的第一矩阵，其对应于Nt个发送天线，产生与Nr个接收数相对应的第一矩阵的子矩阵的组合天线，并计算最大特征值的和; 确定具有最大值的子矩阵的组合，其中所计算的特征值之和作为N t个发射天线的发射天线组; 并通过发射天线组彼此发送不同的相关符号。

8. 发明授权

US07480339B2 Apparatus and method for transmitting/receiving a pilot sequence in a mobile communication system using space-time trellis code 有权
标题翻译：在使用时空网格码的移动通信系统中发送/接收导频序列的装置和方法
公开(公告)号：US07480339B2
公开(公告)日：2009-01-20
申请号：US10695579
申请日：2003-10-28
申请人： Chan-Soo Hwang , Yung-Soo Kim , Seung-Hoon Nam , Jae-Hak Chung
发明人： Chan-Soo Hwang , Yung-Soo Kim , Seung-Hoon Nam , Jae-Hak Chung
IPC分类号： H04B7/02 , H03D1/00
CPC分类号： H04L1/0069 , H04L1/0618 , H04L25/0202
摘要： A mobile communication system includes M transmission antennas, P encoders for receiving P information bit streams and encoding the received information bit streams with a space-time trellis code (STTC), and M modulators for modulating information bit streams output from the P encoders in a predetermined modulation scheme and outputting modulation symbol streams. A sequence used for channel estimation is generated, and the sequence is transmitted in substitute for at least one modulation symbol in a predetermined position through the M transmission antennas, for each of the modulation symbol streams output from the M modulators.
摘要翻译：一种移动通信系统包括：M个发送天线，用于接收P个信息比特流的P编码器，并用空时格码（STTC）对接收到的信息比特流进行编码; M个调制器，用于调制从P编码器输出的信息比特流预定调制方案并输出调制符号流。产生用于信道估计的序列，并且对于从M个调制器输出的每个调制符号流，通过M个发送天线，发送该序列以代替预定位置中的至少一个调制符号。

9. 发明授权

US07457372B2 Data transmission/reception apparatus and method for achieving both multiplexing gain and diversity gain in a mobile communication system using space-time trellis code 有权
标题翻译：数据发送/接收装置和方法，用于在使用时空网格码的移动通信系统中实现复用增益和分集增益
公开(公告)号：US07457372B2
公开(公告)日：2008-11-25
申请号：US10695493
申请日：2003-10-28
申请人： Chan-Soo Hwang , Yung-Soo Kim , Seung-Hoon Nam , Jae-Hak Chung
发明人： Chan-Soo Hwang , Yung-Soo Kim , Seung-Hoon Nam , Jae-Hak Chung
IPC分类号： H04L27/04 , H04B1/69
CPC分类号： H04L1/065 , H04L1/0069 , H04L1/0625 , H04L1/0631
摘要： A mobile communication system includes at least three transmission antennas of first to third transmission antennas, and uses an overlapped antenna scheme for grouping the first and second transmission antennas into a first transmission antenna group and grouping the second and third transmission antennas into a second transmission antenna group. First and second modulators modulate L information bit streams to be transmitted through the first transmission antenna group and output first and second modulation symbol streams. Third and fourth modulators modulate L other information bit streams to be transmitted through the second transmission antenna group and output third and fourth symbol streams. First to fourth puncturers puncture at least one modulation symbol in a predetermined position among the first to fourth modulation symbol streams. A multiplexer transmits a modulation symbol stream output from the first puncturer through the first transmission antenna, transmits modulation symbol streams output from the second and third puncturers through the second transmission antenna after summation, and transmits a modulation symbol stream output from the third puncturer through the third transmission antenna.
摘要翻译：移动通信系统包括第一至第三发射天线的至少三个发射天线，并且使用重叠的天线方案将第一和第二发射天线分组成第一发射天线组，并将第二和第三发射天线分组成第二发射天线组。第一和第二调制器调制通过第一发送天线组发送的L个信息比特流并输出第一和第二调制符号流。第三和第四调制器调制通过第二发送天线组发送的另外的信息比特流并输出第三和第四符号流。第一至第四穿孔器在第一至第四调制符号流中的预定位置中至少刺穿一个调制符号。复用器通过第一发送天线发送从第一穿孔器输出的调制符号流，在求和之后通过第二发送天线发送从第二和第三穿孔器输出的调制符号流，并且从第三穿孔器输出的调制符号流通过第三发射天线。

10. 发明授权

US07411924B2 Method for allocating subchannels in an OFDMA mobile communication system 有权
标题翻译：在OFDMA移动通信系统中分配子信道的方法
公开(公告)号：US07411924B2
公开(公告)日：2008-08-12
申请号：US10996699
申请日：2004-11-24
申请人： Yoon-Ok Cho , Yong-Hoon Lee , Young-Ho Jung , Eung-Sun Kim , Jong-Hyeuk Lee , Jae-Hak Chung , Chang-Soo Hwang , Seung-Hoon Nam
发明人： Yoon-Ok Cho , Yong-Hoon Lee , Young-Ho Jung , Eung-Sun Kim , Jong-Hyeuk Lee , Jae-Hak Chung , Chang-Soo Hwang , Seung-Hoon Nam
IPC分类号： H04Q7/24
CPC分类号： H04L5/023 , H04L1/0003 , H04L1/0015 , H04L27/2608
摘要： An adaptive modulation scheme relating to an RA problem for maximizing the transmission rates of all users for maximum transmission rates in an OFDMA system including some users requiring to use services at fixed data rates. The scheme proposes introduction of an adaptive modulation using linear programming into an existing scheme for a system including a single kind of users, thereby enabling simultaneous execution of the adaptive modulation for all users in a system including two kinds of users. Further, the invention proposes another scheme of sequentially allocating subchannels to the users when the fixed transmission rate has a sufficiently small value, in order to reduce the complexity.
摘要翻译：一种与RA问题有关的自适应调制方案，用于在包括一些需要以固定数据速率的业务的用户的OFDMA系统中最大化所有用户的最大传输速率的传输速率。该方案提出了使用线性规划的自适应调制引入到包括单一用户的系统的现有方案中，从而能够在包括两种用户的系统中为所有用户同时执行自适应调制。此外，为了降低复杂度，本发明提出了当固定传输速率具有足够小的值时向用户顺序分配子信道的另一方案。

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