公开(公告)号：US20080170512A1

公开(公告)日：2008-07-17

申请号：US11859925

申请日：2007-09-24

申请人： Duck Dong HWANG ,  Eung Sun KIM ,  Young-Doo KIM ,  Chang Wook AHN

发明人： Duck Dong HWANG ,  Eung Sun KIM ,  Young-Doo KIM ,  Chang Wook AHN

IPC分类号： H04L12/28

CPC分类号： H04W52/46 ,  H04B7/022 ,  H04B7/026 ,  H04W52/248

摘要： A method and apparatus for controlling power in a decode-and-forward (DF) relay system is provided. The method of controlling power in a DF relay system includes: acquiring first channel information of a first link between a source node and a destination node, second channel information of a second link between the source node and a relay node, and third channel information of a third link between the relay node and the destination node, by using a pilot signal; determining a power level of the source node from the acquired first through third channel information; and feeding back the determined power level to the source node and the relay node.

摘要翻译： 提供了一种用于在解码 - 转发（DF）中继系统中控制功率的方法和装置。 控制DF中继系统功率的方法包括：获取源节点与目的节点之间的第一链路的第一信道信息，源节点与中继节点之间的第二链路的第二信道信息，以及第 通过使用导频信号在中继节点和目的地节点之间的第三链路; 从所获取的第一到第三信道信息确定源节点的功率电平; 并将确定的功率电平反馈到源节点和中继节点。

公开(公告)号：US20080192809A1

公开(公告)日：2008-08-14

申请号：US11768563

申请日：2007-06-26

申请人： Young-Doo KIM ,  Eung Sun KIM ,  Chang Wook AHN ,  Gi-Hong IM ,  Jong-Bu LIM ,  Tae-Won YUNE ,  Chan-Ho CHOI

发明人： Young-Doo KIM ,  Eung Sun KIM ,  Chang Wook AHN ,  Gi-Hong IM ,  Jong-Bu LIM ,  Tae-Won YUNE ,  Chan-Ho CHOI

IPC分类号： H04B1/707 ,  H04B1/69 ,  H04L27/01

CPC分类号： H04B1/71072 ,  H04L27/2636 ,  H04L27/2647

摘要： A method and apparatus for transmitting and receiving data by performing an iterative multi-user detection is provided. The apparatus includes: a receives a transmission signal and generates a received signal, the transmission signal being generated by modulating a single carrier signal via a modulation process, specialized for each user, in a wireless communication system; an interference canceled signal generator which generates an interference canceled signal by canceling a signal interference using a demodulated signal with respect to the received signal, the signal interference being caused by an other user; and a demodulated signal generator which generates the demodulated signal by demodulating the received signal via a demodulation process using the interference canceled signal, the demodulation process being specialized for each user, wherein the demodulated signal, which is generated by performing the generating of the interference canceled signal and the generating of the demodulated signal at least once, is adopted as a final demodulated signal.

摘要翻译： 提供了一种通过执行迭代多用户检测来发送和接收数据的方法和装置。 该装置包括：a接收传输信号并产生接收信号，该传输信号是通过在无线通信系统中经由专用于每个用户的调制过程调制单载波信号产生的; 干扰消除信号发生器，其通过使用相对于接收信号的解调信号消除信号干扰来产生干扰消除信号，所述信号干扰由另一用户引起; 以及解调信号发生器，其通过使用干扰消除信号的解调处理解调接收信号来产生解调信号，解调处理专用于每个用户，其中通过执行消除干扰的产生而产生的解调信号 信号和至少一次解调信号的产生被采用作为最终的解调信号。

公开(公告)号：US20080181318A1

公开(公告)日：2008-07-31

申请号：US11859866

申请日：2007-09-24

申请人： Young-Doo KIM ,  Eung Sun KIM ,  Chang Wook AHN

发明人： Young-Doo KIM ,  Eung Sun KIM ,  Chang Wook AHN

IPC分类号： H04L27/28 ,  H04B7/14 ,  H04J1/10

CPC分类号： H04L5/0007 ,  H04B7/15557 ,  H04B7/2606 ,  H04L1/0009 ,  H04L5/003 ,  H04L25/0204 ,  H04L2001/0097

摘要： A method of controlling data transmission mode in an orthogonal frequency division multiple access (OFDMA) wireless relay system and an apparatus using the method are provided. The method of controlling data transmission mode includes: dividing all frequency bands of an OFDM signal into a frequency band group including at least one subcarrier band; estimating a plurality of channels of wireless links which respectively link a base station (BS), at least one relay station (RS), and a mobile station (MS) with respect to the at least one subcarrier band; selecting any one of a plurality of data transmission modes based on a feature of the estimated plurality of channels of wireless links with respect to the frequency band group; and applying the selected data transmission mode to all of the at least one subcarrier bands in the frequency band group to transmit data.

摘要翻译： 提供了一种在正交频分多址（OFDMA）无线中继系统中控制数据传输模式的方法和使用该方法的装置。 控制数据传输模式的方法包括：将OFDM信号的所有频带划分成包括至少一个子载波频带的频带组; 估计相对于所述至少一个子载波频带分别链接基站（BS），至少一个中继站（RS）和移动站（MS）的多个无线链路的信道; 基于相对于频带组的估计的无线链路的多个信道的特征，选择多个数据传输模式中的任何一个; 以及将所选择的数据传输模式应用于频带组中的所有至少一个子载波频带以发送数据。

公开(公告)号：US20100226293A1

公开(公告)日：2010-09-09

申请号：US12567780

申请日：2009-09-27

申请人： Young-Doo KIM ,  Chan Soo HWANG ,  Eung Sun KIM

发明人： Young-Doo KIM ,  Chan Soo HWANG ,  Eung Sun KIM

IPC分类号： H04J3/00 ,  H04B15/00

CPC分类号： H04B15/02

摘要： A communication network applying an interference alignment scheme with a low or reduced complexity is provided. The communication network may include a plurality of transmit nodes and a plurality of receive nodes. A plurality of combinations of transmit-receive pairs may exist between the plurality of transmit nodes and the plurality of receive nodes. A communication apparatus for the communication network may select, from candidate combinations of transmit-receive pairs, a target combination to be applied with the interference alignment scheme. In particular, the communication apparatus may sequentially decrease a number of candidate combinations to select the target combination with a low complexity.

摘要翻译： 提供了应用具有低或降低的复杂度的干扰对准方案的通信网络。 通信网络可以包括多个发射节点和多个接收节点。 发射 - 接收对的多个组合可以存在于多个发射节点和多个接收节点之间。 用于通信网络的通信装置可以从发送 - 接收对的候选组合中选择要应用干扰对准方案的目标组合。 具体地，通信装置可以顺序地减少候选组合的数量，以选择低复杂度的目标组合。

公开(公告)号：US20090034408A1

公开(公告)日：2009-02-05

申请号：US11924928

申请日：2007-10-26

申请人： Young-Doo KIM ,  Eung Sun Kim ,  Tae Soo Kwon ,  Ui Kun Kwon ,  Gi Hong Im ,  Dong Sik Kim

发明人： Young-Doo KIM ,  Eung Sun Kim ,  Tae Soo Kwon ,  Ui Kun Kwon ,  Gi Hong Im ,  Dong Sik Kim

IPC分类号： H04J11/00

CPC分类号： H04B1/59

摘要： A method and apparatus for compensating a distortion due to a clipped amplitude when an amplitude of a signal is clipped to reduce a peak to average power ratio (PAPR) in a wireless communication system using an orthogonal frequency division multiplexing (OFDM) scheme and a transmit diversity method using an orthogonal coding.A wireless data transmission apparatus which transmits a data stream via a plurality of antennas, the apparatus including: a coding unit which Space-Time block codes a first data stream into a plurality of second data streams, the plurality of second data streams being orthogonal to each other; an inverse Fourier transform unit which performs an inverse Fourier transform of each of the Space-Time block coded second data stream and generates a plurality of time domain signals; and a plurality of amplitude clipping units which clips an amplitude of each of the plurality of generated time domain signals.

摘要翻译： 一种用于补偿当信号的幅度被限幅时由于限制幅度引起的失真的方法和装置，以减少使用正交频分复用（OFDM）方案和发送的无线通信系统中的峰均功率比（PAPR） 使用正交编码的分集方法。 一种经由多个天线发送数据流的无线数据发送装置，所述装置包括：空时块将第一数据流编码为多个第二数据流的编码单元，所述多个第二数据流正交于 彼此; 逆傅立叶变换单元，其执行空时块编码的第二数据流中的每一个的傅里叶逆变换，并生成多个时域信号; 以及多个幅度剪辑单元，其剪辑所述多个所生成的时域信号中的每一个的振幅。

公开(公告)号：US20100227613A1

公开(公告)日：2010-09-09

申请号：US12567779

申请日：2009-09-27

申请人： Young-Doo KIM ,  Chan Soo HWANG ,  Eung Sun KIM

发明人： Young-Doo KIM ,  Chan Soo HWANG ,  Eung Sun KIM

IPC分类号： H04W48/20

CPC分类号： H04L25/03828 ,  H04W72/082

摘要： A communication system may include a serving base station and neighboring base stations. Each of the serving base station and the neighboring base stations may have a corresponding user group. Terminals belonging to a particular user group may feed back information associated with interference channels, and reasonably generate a precoding matrix. Through this, it is possible to perform an accurate interference alignment and to enhance a throughput. In this instance, terminals belonging to the other user groups may feed back information associated with a throughput, and a corresponding base station may perform the interference alignment using a user selection resulting in decreased overhead.

摘要翻译： 通信系统可以包括服务基站和相邻基站。 每个服务基站和相邻基站可以具有对应的用户组。 属于特定用户组的终端可以反馈与干扰信道相关联的信息，并合理地生成预编码矩阵。 通过这种方式，可以执行准确的干扰对准并提高吞吐量。 在这种情况下，属于其他用户组的终端可以反馈与吞吐量相关联的信息，并且相应的基站可以使用导致减少的开销的用户选择来执行干扰对齐。

公开(公告)号：US20090016256A1

公开(公告)日：2009-01-15

申请号：US11937615

申请日：2007-11-09

申请人： Young-Doo KIM ,  Eung Sun Kim ,  Tae Soo Kwon

发明人： Young-Doo KIM ,  Eung Sun Kim ,  Tae Soo Kwon

IPC分类号： H04B7/14

CPC分类号： H04B7/1555

摘要： A method of determining an optimal transmission mode and a data frame structure for determining an optimal transmission mode in a data transmission system using a relay, are provided. Any one of a base station, a relay, and a mobile station determines an optimal transmission mode from among a plurality of transmission modes, and the base station transmits the determined optimal transmission mode by enabling the determined optimal transmission mode to be included in the system information duration of the data frame, so that the overall relay system can transmit data according to the optimal transmission mode.

摘要翻译： 提供一种确定最佳传输模式的方法和用于使用继电器在数据传输系统中确定最佳传输模式的数据帧结构。 基站，中继站和移动站中的任一个从多个传输模式中确定最佳传输模式，并且基站通过使所确定的最佳传输模式能够被包括在系统中来发送确定的最佳传输模式 数据帧的信息持续时间，使得总体中继系统可以根据最佳传输模式传输数据。

公开(公告)号：US20100227566A1

公开(公告)日：2010-09-09

申请号：US12509864

申请日：2009-07-27

申请人： Young-Doo KIM ,  Chan Soo HWANG ,  Eung Sun KIM

发明人： Young-Doo KIM ,  Chan Soo HWANG ,  Eung Sun KIM

IPC分类号： H04B17/00

CPC分类号： H04B7/0617 ,  H04B7/0619 ,  H04B7/0621 ,  H04B7/0848

摘要： Provided is a communication system using various types of random beamforming technologies. Each of terminals that belong to a user group may generate a decoding matrix, based on interference caused by a neighboring base station of a serving base station. Each of the terminals may transmit, to the serving base station or the neighboring base station, information associated with a signal-to-interference plus noise ratio (SINR) or throughput based on the decoding matrix. The serving base station may select, from the terminals, at least one target terminal to communicate with the serving base station.

摘要翻译： 提供了使用各种随机波束成形技术的通信系统。 属于用户组的每个终端可以基于由服务基站的相邻基站引起的干扰来生成解码矩阵。 每个终端可以基于解码矩阵向服务基站或相邻基站发送与信号与干扰加噪声比（SINR）或吞吐量相关联的信息。 服务基站可以从终端中选择至少一个目标终端来与服务基站进行通信。

公开(公告)号：US20100136903A1

公开(公告)日：2010-06-03

申请号：US12425179

申请日：2009-04-16

申请人： Namyoon LEE ,  Young-Doo KIM ,  Eung Sun KIM

发明人： Namyoon LEE ,  Young-Doo KIM ,  Eung Sun KIM

IPC分类号： H04B7/14

CPC分类号： H04B7/155 ,  H04L25/0204 ,  H04L25/0224 ,  H04L25/0242 ,  H04L25/03343

摘要： Disclosed is a data transmission system that transmits data using a relay. During a first time slot, a base station may transmit base station data to the relay, and a mobile station may transmit mobile station data to the relay. During a second time slot, the relay may transmit the mobile station data to the base station, and transmit the base station data to the mobile station.

摘要翻译： 公开了使用中继发送数据的数据传输系统。 在第一时隙期间，基站可以向中继发送基站数据，并且移动台可以向中继发送移动站数据。 在第二时隙期间，中继可以将移动站数据发送到基站，并将基站数据发送到移动站。

公开(公告)号：US20100232344A1

公开(公告)日：2010-09-16

申请号：US12567776

申请日：2009-09-27

申请人： Young-Doo KIM ,  Mohamed Rashad SALEM ,  Abdulkareem ANINOYI ,  Halim YANIKOMEROGLU ,  David FALCONER

发明人： Young-Doo KIM ,  Mohamed Rashad SALEM ,  Abdulkareem ANINOYI ,  Halim YANIKOMEROGLU ,  David FALCONER

IPC分类号： H04J3/08

CPC分类号： H04L5/0007 ,  H04L5/0035 ,  H04L5/0037 ,  H04L5/0058 ,  H04L5/006 ,  H04L5/0071

摘要： Disclosed are a scheduling method and apparatus for a relay-based network. The scheduling apparatus may assign a plurality of sub channels to links, with respect to each of a first sub frame and a second sub frame included in s downlink sub frame. The scheduling apparatus may perform scheduling in cases where nodes operated as transmitters and as receivers in the first sub frame and the second sub frame may diversely exist.

摘要翻译： 公开了一种用于基于中继的网络的调度方法和装置。 调度装置可以针对包括在s个下行链路子帧中的第一子帧和第二子帧中的每个分配多个子信道到链路。 在作为发射机操作的节点和作为第一子帧和第二子帧中的接收机的节点可能不同地存在的情况下，调度装置可以执行调度。