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：US20080076349A1

公开(公告)日：2008-03-27

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： 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：US07860452B2

公开(公告)日：2010-12-28

申请号：US11777649

申请日：2007-07-13

申请人： Chang Wook Ahn ,  Young-Doo Kim ,  Eung Sun Kim

发明人： Chang Wook Ahn ,  Young-Doo Kim ,  Eung Sun Kim

IPC分类号： H04B7/15

CPC分类号： H04W16/10 ,  H04B7/15542 ,  H04B7/15557 ,  H04B7/2606 ,  H04W16/26 ,  H04W72/08 ,  H04W84/047

摘要： A method of assigning a carrier for mitigating inter-cell interference in a fixed relay based communication system is provided. In a normal mode, the method includes defining at least one sector group by grouping cells at least two tiers away from each other; selecting a single sector group; and assigning, by a base station of the selected sector group, a first carrier to a relay station or a mobile station which is located in a coverage area of the base station. In a relay mode, the method includes determining whether a current mode is a normal mode or a relay mode; determining whether a base station is included in a selected sector group; and assigning carriers to a relay station or a mobile station belonging to the base station, when the current mode is the normal mode and the base station is included in the selected sector group.

摘要翻译： 提供了一种在基于固定中继的通信系统中分配用于减轻小区间干扰的载波的方法。 在正常模式中，该方法包括通过将小区分组至少两个彼此分开来定义至少一个扇区组; 选择单个扇区组; 以及由所选择的扇区组的基站将第一载波分配给位于所述基站的覆盖区域中的中继站或移动台。 在中继模式中，该方法包括确定当前模式是正常模式还是中继模式; 确定基站是否包括在所选择的扇区组中; 以及当所述当前模式是正常模式并且所述基站被包括在所选择的扇区组中时，将载波分配给属于所述基站的中继站或移动站。

公开(公告)号：US07751464B2

公开(公告)日：2010-07-06

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： H04L27/30

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：US20080045212A1

公开(公告)日：2008-02-21

申请号：US11638575

申请日：2006-12-14

申请人： Young-Doo Kim ,  Eung Sun Kim ,  Chang Wook Ahn ,  Seung Hoon Nam

发明人： Young-Doo Kim ,  Eung Sun Kim ,  Chang Wook Ahn ,  Seung Hoon Nam

IPC分类号： H04Q7/20

CPC分类号： H04W28/18 ,  H04L1/0025 ,  H04L1/0668 ,  H04L2001/0097 ,  H04W40/22

摘要： A data transmission method in a wireless relay system, and a method of selecting an optimal transmission mode based on a channel capacity of an individual link that is measured by a mobile station. The data transmission method includes: transmitting a first ratio of first partial data of the data from a base station to a mobile station; transmitting a second ratio of second partial data of the data from the base station to a first relay station; and forwarding the second partial data from the first relay station to the mobile station, wherein the first ratio or the second ratio is determined based on any one of a channel capacity of a first link between the base station and the mobile station, and a channel capacity of a second link between the first relay station and the mobile station.

摘要翻译： 无线中继系统中的数据传输方法以及基于由移动台测量的各个链路的信道容量来选择最优传输模式的方法。 数据传输方法包括：从基站向移动台发送数据的第一部分数据的第一比率; 将来自基站的数据的第二部分数据的第二比率发送到第一中继站; 以及将所述第二部分数据从所述第一中继站转发到所述移动站，其中，所述第一比率或所述第二比率基于所述基站和所述移动站之间的第一链路的信道容量和信道 在第一中继站和移动站之间的第二链路的容量。

公开(公告)号：US08150409B2

公开(公告)日：2012-04-03

申请号：US11638575

申请日：2006-12-14

申请人： Young-Doo Kim ,  Eung Sun Kim ,  Chang Wook Ahn ,  Seung Hoon Nam

发明人： Young-Doo Kim ,  Eung Sun Kim ,  Chang Wook Ahn ,  Seung Hoon Nam

IPC分类号： H04W72/00 ,  H04B3/36 ,  H04B7/14 ,  H04J1/10 ,  H04J3/08 ,  H04L12/28

CPC分类号： H04W28/18 ,  H04L1/0025 ,  H04L1/0668 ,  H04L2001/0097 ,  H04W40/22

摘要： A data transmission method in a wireless relay system, and a method of selecting an optimal transmission mode based on a channel capacity of an individual link that is measured by a mobile station. The data transmission method includes: transmitting a first ratio of first partial data of the data from a base station to a mobile station; transmitting a second ratio of second partial data of the data from the base station to a first relay station; and forwarding the second partial data from the first relay station to the mobile station, wherein the first ratio or the second ratio is determined based on any one of a channel capacity of a first link between the base station and the mobile station, and a channel capacity of a second link between the first relay station and the mobile station.

摘要翻译： 无线中继系统中的数据传输方法以及基于由移动台测量的各个链路的信道容量来选择最优传输模式的方法。 数据传输方法包括：从基站向移动台发送数据的第一部分数据的第一比率; 将来自基站的数据的第二部分数据的第二比率发送到第一中继站; 以及将所述第二部分数据从所述第一中继站转发到所述移动站，其中，所述第一比率或所述第二比率基于所述基站和所述移动站之间的第一链路的信道容量和信道 在第一中继站和移动站之间的第二链路的容量。

公开(公告)号：US07944809B2

公开(公告)日：2011-05-17

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： H04J11/00

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：US08199693B2

公开(公告)日：2012-06-12

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： H04B7/185 ,  H04B7/00 ,  H04B1/38 ,  H01Q11/12

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：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：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。