公开(公告)号：US07787557B2

公开(公告)日：2010-08-31

申请号：US11711119

申请日：2007-02-27

申请人： Young-Doo Kim ,  Eung Sun Kim ,  Gi Hong Lim ,  Ui Kun Kwon

发明人： Young-Doo Kim ,  Eung Sun Kim ,  Gi Hong Lim ,  Ui Kun Kwon

IPC分类号： H04B15/00

CPC分类号： H04L25/03006 ,  H04L27/2623 ,  H04L2025/03414

摘要： An apparatus for correcting clipping distortion of a receiver system includes: an equalizer which generates a first equalization signal by equalizing a frequency domain clipping signal via a first equalization coefficient correcting a channel distortion, and generates a second equalization signal by equalizing the frequency domain clipping signal via a second equalization coefficient correcting the clipping distortion and the channel distortion; and a signal reconstruction unit which receives the first equalization signal and the second equalization signal from the equalizer, determines a transmission symbol by performing a hard decision with respect to the second equalization, and reconstructs a signal by using an amplitude of the transmission symbol and a phase of the first equalization signal when a level of the amplitude of the transmission symbol is greater than or equal to a reference value.

摘要翻译： 一种用于校正接收机系统的限幅失真的装置，包括：均衡器，其通过校正频道失真的第一均衡系数均衡频域限幅信号，产生第一均衡信号，并通过均衡频域限幅信号产生第二均衡信号 经由校正所述限幅失真和所述信道失真的第二均衡系数; 以及从均衡器接收第一均衡信号和第二均衡信号的信号重建单元，通过对第二均衡执行硬判决来确定发送符号，并且通过使用发送符号的幅度和 当发送符号的幅度的电平大于或等于参考值时，第一均衡信号的相位。

公开(公告)号：US20080089224A1

公开(公告)日：2008-04-17

申请号：US11711119

申请日：2007-02-27

申请人： Young-Doo Kim ,  Eung Sun Kim ,  Gi-Hong Lim ,  Ui-Kun Kwon

发明人： Young-Doo Kim ,  Eung Sun Kim ,  Gi-Hong Lim ,  Ui-Kun Kwon

IPC分类号： H04J11/00

CPC分类号： H04L25/03006 ,  H04L27/2623 ,  H04L2025/03414

摘要： An apparatus for correcting clipping distortion of a receiver system includes: an equalizer which generates a first equalization signal by equalizing a frequency domain clipping signal via a first equalization coefficient correcting a channel distortion, and generates a second equalization signal by equalizing the frequency domain clipping signal via a second equalization coefficient correcting the clipping distortion and the channel distortion; and a signal reconstruction unit which receives the first equalization signal and the second equalization signal from the equalizer, determines a transmission symbol by performing a hard decision with respect to the second equalization, and reconstructs a signal by using an amplitude of the transmission symbol and a phase of the first equalization signal when a level of the amplitude of the transmission symbol is greater than or equal to a reference value.

摘要翻译： 一种用于校正接收机系统的限幅失真的装置，包括：均衡器，其通过校正频道失真的第一均衡系数均衡频域限幅信号来产生第一均衡信号，并通过均衡频域限幅信号产生第二均衡信号 经由校正所述限幅失真和所述信道失真的第二均衡系数; 以及从均衡器接收第一均衡信号和第二均衡信号的信号重建单元，通过对第二均衡执行硬判决来确定发送符号，并且通过使用发送符号的幅度和 当发送符号的幅度的电平大于或等于参考值时，第一均衡信号的相位。

公开(公告)号：US08897208B2

公开(公告)日：2014-11-25

申请号：US12068157

申请日：2008-02-04

申请人： Eung Sun Kim ,  Young-Doo Kim ,  Tae Soo Kwon ,  Dae-Young Seol ,  Gi Hong Im ,  Ui Kun Kwon

发明人： Eung Sun Kim ,  Young-Doo Kim ,  Tae Soo Kwon ,  Dae-Young Seol ,  Gi Hong Im ,  Ui Kun Kwon

IPC分类号： H04W4/00 ,  H04L12/28 ,  H04J3/16 ,  H04B7/155 ,  H04L1/06 ,  H04L1/00

CPC分类号： H04B7/15542 ,  H04L1/0606 ,  H04L2001/0097

摘要： A space frequency block code signal relaying system is provided. The space frequency block code signal relaying system includes a signal detecting unit which receives, via a radio channel, a source signal sent from a source station and detects the received signal; a relay signal generation unit which generates a relay signal corresponding with the source signal transmitted from the source station to a destination node based on the received signal, the source signal and the relay signal being signals encoded in a Space Frequency Block Code (SFBC) scheme; and a signal transmitting unit which transmits the relay signal to the destination node.

摘要翻译： 提供了空间频率块码信号中继系统。 空间频率块码信号中继系统包括：信号检测单元，经由无线电信道接收从源站发送的源信号并检测接收到的信号; 继电器信号生成单元，其基于所接收的信号，生成与从源站发送到目的地节点的源信号对应的中继信号，源信号和中继信号是以空间频率块码（SFBC）方式编码的信号 ; 以及将所述中继信号发送到所述目的地节点的信号发送单元。

公开(公告)号：US20090040960A1

公开(公告)日：2009-02-12

申请号：US12068157

申请日：2008-02-04

申请人： Eung Sun Kim ,  Young-Doo Kim ,  Tae Soo Kwon ,  Dae-Young Seol ,  Gi Hong Im ,  Ui Kun Kwon

发明人： Eung Sun Kim ,  Young-Doo Kim ,  Tae Soo Kwon ,  Dae-Young Seol ,  Gi Hong Im ,  Ui Kun Kwon

IPC分类号： H04B7/14

CPC分类号： H04B7/15542 ,  H04L1/0606 ,  H04L2001/0097

摘要： A space frequency block code signal relaying system is provided. The space frequency block code signal relaying system includes a signal detecting unit which receives, via a radio channel, a source signal sent from a source station and detects the received signal; a relay signal generation unit which generates a relay signal corresponding with the source signal transmitted from the source station to a destination node based on the received signal, the source signal and the relay signal being signals encoded in a Space Frequency Block Code (SFBC) scheme; and a signal transmitting unit which transmits the relay signal to the destination node.

摘要翻译： 提供了空间频率块码信号中继系统。 空间频率块码信号中继系统包括：信号检测单元，经由无线电信道接收从源站发送的源信号并检测接收到的信号; 中继信号生成单元，基于接收信号，生成与从源站发送到目的地节点的源信号对应的中继信号，源信号和中继信号是以空间频率块码（SFBC）方式编码的信号 ; 以及将所述中继信号发送到所述目的地节点的信号发送单元。

公开(公告)号：US07907511B2

公开(公告)日：2011-03-15

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 wireless data transmission method and apparatus are provided 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. The wireless data transmission apparatus includes 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： 提供了一种无线数据传输方法和装置，用于当信号的幅度被限幅时补偿由于限幅幅度引起的失真，从而在使用正交频分复用（OFDM）的无线通信系统中降低峰均功率比（PAPR） ）方案和使用正交编码的发射分集方法。 无线数据传输装置包括：空时块将第一数据流编码为多个第二数据流的编码单元，多个第二数据流彼此正交; 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：US08451916B2

公开(公告)日：2013-05-28

申请号：US12098464

申请日：2008-04-07

申请人： Ui Kun Kwon ,  Young-Doo Kim ,  Gi Hong Im ,  Dae-Young Seol ,  Won-Jae Shin

发明人： Ui Kun Kwon ,  Young-Doo Kim ,  Gi Hong Im ,  Dae-Young Seol ,  Won-Jae Shin

IPC分类号： H04L27/28

CPC分类号： H04B7/15592

摘要： A relay-based communication system and method processing a signal without a cyclic prefix is provided. An apparatus for generating a relay signal includes a signal receiving unit which receives a source signal transmitted from a source node to a relay node and detects a received signal, a signal conversion unit which extracts samples corresponding to a first time duration from the received signal, sums the received signal and the extracted samples in a second time duration, and generates a converted received signal, a relay signal generation unit which generates a relay signal cooperating with the source signal based on the converted received signal according to a space frequency block code (SFBC) scheme, and a signal transmission unit which transmits the generated relay signal to a destination node.

摘要翻译： 提供一种基于中继的通信系统和处理没有循环前缀的信号的方法。 一种用于产生中继信号的装置，包括信号接收单元，该信号接收单元接收从源节点发送到中继节点的源信号并检测接收信号;信号转换单元，从接收到的信号中提取与第一持续时间相对应的样本， 在第二持续时间内对接收到的信号和提取的样本求和，并产生转换的接收信号;继电器信号生成单元，根据空间频率块码，生成与源信号协调的中继信号 SFBC）方案，以及将生成的中继信号发送到目的地节点的信号发送单元。

公开(公告)号：US20110051837A1

公开(公告)日：2011-03-03

申请号：US12818506

申请日：2010-06-18

申请人： Dohyung PARK ,  Young-Doo Kim ,  Namyoon Lee ,  Eung Sun Kim

发明人： Dohyung PARK ,  Young-Doo Kim ,  Namyoon Lee ,  Eung Sun Kim

IPC分类号： H04B15/00 ,  H04L25/03

CPC分类号： H04L25/03343 ,  H04L2025/03426

摘要： A communication device and a mobile station to perform interference alignment, and an interference alignment method are provided. Interference alignment may be performed to enable an interference signal, received in a mobile station, to be removed using channel information fed back from the mobile station.

摘要翻译： 提供干涉对准的通信装置和移动台以及干涉对准方法。 可以执行干扰对准以使得能够使用从移动站反馈的信道信息来移除在移动站中接收的干扰信号。

公开(公告)号：US07860451B2

公开(公告)日：2010-12-28

申请号：US11716695

申请日：2007-03-12

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： H04B3/36 ,  H04B7/14

CPC分类号： H04B7/15535 ,  H04B7/043 ,  H04W52/46

摘要： A method and apparatus for controlling a power of a relay are provided. The apparatus includes: a signal receiver which receives signals which are transmitted to a plurality of receiving antennas directly from a source or via at least one relay; a channel information acquirement unit which acquires channel information between the source and the at least one relay, and acquires channel information between the at least one relay and the plurality of receiving antennas; a power control signal generation unit which generates a power control signal, based on the acquired channel information and a maximum SNR; and a relay power control unit which transmits the generated power control signal to the relay and thereby controls a transmit signal power with respect to the at least one relay.

摘要翻译： 提供一种用于控制继电器的功率的方法和装置。 该装置包括：信号接收器，其接收从源或经由至少一个继电器直接发送到多个接收天线的信号; 信道信息获取单元，其获取所述源与所述至少一个中继之间的信道信息，并获取所述至少一个中继与所述多个接收天线之间的信道信息; 功率控制信号生成单元，其基于所获取的信道信息和最大SNR生成功率控制信号; 以及继电器功率控制单元，其向所述继电器发送所生成的功率控制信号，从而控制相对于所述至少一个继电器的发送信号功率。

公开(公告)号：US20100227635A1

公开(公告)日：2010-09-09

申请号：US12626644

申请日：2009-11-26

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： H04B15/00

CPC分类号： H04W72/048 ,  H04W72/082

摘要： Provided is a signal transmission system including a terminal to receive a signal using an interference alignment scheme, and a transmitting base station to transmit, to the terminal, a signal where interference is aligned. The transmitting base station may select, from a plurality of terminals, a target terminal to receive the signal using the interference alignment scheme. The selected target terminal may receive the signal from the transmitting base station and receive interference signals from a plurality of interference base stations.

摘要翻译： 提供了一种信号传输系统，其包括使用干扰对准方案接收信号的终端，以及发射基站，向终端发送干扰对准的信号。 发送基站可以从多个终端中选择目标终端，以使用干扰对准方案来接收信号。 所选择的目标终端可以从发射基站接收信号并从多个干扰基站接收干扰信号。

公开(公告)号：US20090176492A1

公开(公告)日：2009-07-09

申请号：US12099743

申请日：2008-04-08

申请人： Tae Soo Kwon ,  Chang Yong Shin ,  Young-Doo Kim ,  Eung Sun Kim

发明人： Tae Soo Kwon ,  Chang Yong Shin ,  Young-Doo Kim ,  Eung Sun Kim

IPC分类号： H04Q7/20 ,  H04B3/36

CPC分类号： H04W72/085 ,  H04B7/022 ,  H04B7/026 ,  H04B7/2606 ,  H04W16/26 ,  H04W36/30

摘要： A mobile station which connects to a base station having a plurality of relays belonging thereto is provided. The mobile station includes a receiving unit which receives a first preamble signal from a first relay and receives a second preamble signal from a second relay, the first relay belonging to a first cluster including an N1 number of relays and the second relay belonging to a second cluster including an N2 number of relays, a control unit which selects the first cluster as an access cluster to connect to the base station, based on the first preamble signal and the second preamble signal, and a transmission unit which transmits an access request message to the first relay, wherein the access request message is transmitted to the base station via the first relay.

摘要翻译： 提供了连接到具有属于其的多个继电器的基站的移动台。 移动站包括：接收单元，其接收来自第一中继的第一前同步信号，并从第二中继接收第二前置信号，所述第一中继属于包含N1个继电器的第一群，所述第二中继属于第二中继 包括N2个继电器的集群，基于第一前导信号和第二前导信号选择第一集群作为接入集群以连接到基站的控制单元，以及发送单元，其将接入请求消息发送到 所述第一中继器，其中所述接入请求消息经由所述第一中继发送到所述基站。