公开(公告)号：US07542441B2

公开(公告)日：2009-06-02

申请号：US11167686

申请日：2005-06-27

申请人： Young-June Choi ,  Sang-Boh Yun ,  Won-Hyoung Park ,  Sae-Woong Bahk ,  Jong-Tack Kim

发明人： Young-June Choi ,  Sang-Boh Yun ,  Won-Hyoung Park ,  Sae-Woong Bahk ,  Jong-Tack Kim

IPC分类号： H04W4/00

CPC分类号： H04L5/0067 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0037 ,  H04L5/006 ,  H04L5/0094 ,  H04W72/1226

摘要： A resource allocation method in a multicarrier communication system where a base station allocates resources to a plurality of mobile stations according to feedback channel information from the mobile stations. The base station receives a resource request message from each mobile station and selects a set of mobile stations offering a maximum system gain without overlapped resources at a specific point in time based on the resource request messages from all mobile stations in the system. The requested resources and then allocated to the selected mobile stations.

摘要翻译： 一种多载波通信系统中的资源分配方法，其中基站根据来自移动台的反馈信道信息向多个移动站分配资源。 基站从各移动站接收资源请求消息，并根据来自系统中所有移动台的资源请求消息，选择提供最大系统增益的一组移动站，而不需要在特定时间点重叠的资源。 所请求的资源，然后分配给选定的移动台。

公开(公告)号：US20090086848A1

公开(公告)日：2009-04-02

申请号：US12286597

申请日：2008-10-01

申请人： Seung-Hee Han ,  Jong-Hyeuk Lee ,  Sang-Boh Yun

发明人： Seung-Hee Han ,  Jong-Hyeuk Lee ,  Sang-Boh Yun

IPC分类号： H04L27/00

CPC分类号： H04L5/0023 ,  H04L5/0066 ,  H04L27/2618 ,  H04L27/2623

摘要： An apparatus is provided for reducing a peak-to-average power ratio (PAPR) in a wireless communication system having multiple transmit antennas. A symbol generator generates symbols to be transmitted via the multiple transmit antennas, and a PAPR calculator calculates a PAPR value for each symbol. A detector detects a maximum PAPR value among the PAPR values of the symbols. A controller outputs a control signal to reduce a PAPR value of a corresponding symbol when the detected maximum PAPR value exceeds a reference PAPR value. A PAPR reducer reduces the PAPR value of the corresponding symbol upon receipt of the control signal.

摘要翻译： 提供一种用于降低具有多个发射天线的无线通信系统中的峰均功率比（PAPR）的装置。 符号生成器生成要通过多个发送天线发送的符号，PAPR计算器计算每个符号的PAPR值。 检测器检测符号的PAPR值中的最大PAPR值。 当检测到的最大PAPR值超过参考PAPR值时，控制器输出控制信号以减小相应符号的PAPR值。 PAPR减速器在接收到控制信号时降低相应符号的PAPR值。

公开(公告)号：US20090086840A1

公开(公告)日：2009-04-02

申请号：US12284922

申请日：2008-09-26

申请人： Sung-Yoon Jung ,  Sang-Boh Yun ,  Sung-Soo Hwang ,  Jong-Ho Lee

发明人： Sung-Yoon Jung ,  Sang-Boh Yun ,  Sung-Soo Hwang ,  Jong-Ho Lee

IPC分类号： H04L5/12 ,  H04L27/28

CPC分类号： H04L25/03343 ,  H04L5/0053 ,  H04L2025/03414 ,  H04L2025/03802

摘要： Disclosed is a system and method for transmitting feedback information in a communication system. A receiver calculates a minimum distance of each two symbol vectors among all symbol vectors which can be received through a kth subcarrier among a plurality of subcarriers, in which a channel state of the kth subcarrier and a jth precoder among precoders included in a codebook set are applied; calculates sums of minimum distances by adding minimum distances calculated for the plurality of subcarriers according to each precoder; determines a precoder corresponding to a value greatest among the sums of minimum distances calculated according to the precoders, as a precoder representing the plurality of subcarriers; and feeds the feedback information including a precoder index of the determined precoder back to a transmitter.

摘要翻译： 公开了一种用于在通信系统中发送反馈信息的系统和方法。 接收机计算在多个子载波中可以通过第k个子载波接收的所有符号向量中的每两个符号向量的最小距离，其中包括在码本集中的预编码器中的第k个副载波和第j个预编码器的信道状态是 应用; 通过根据每个预编码器添加针对多个子载波计算的最小距离来计算最小距离的和; 确定对应于根据预编码器计算的最小距离之和中最大值的预编码器作为表示多个子载波的预编码器; 并将包括所确定的预编码器的预编码器索引的反馈信息反馈给发射机。

公开(公告)号：US20080310556A1

公开(公告)日：2008-12-18

申请号：US12157679

申请日：2008-06-12

申请人： Joo-Hyun Lee ,  Sang-Boh Yun ,  Young-Hoon Kwon ,  Soong-Yoon Choi ,  Yong-Soo Cho ,  Tae-Ho Im ,  Jae-Kwon Kim

发明人： Joo-Hyun Lee ,  Sang-Boh Yun ,  Young-Hoon Kwon ,  Soong-Yoon Choi ,  Yong-Soo Cho ,  Tae-Ho Im ,  Jae-Kwon Kim

IPC分类号： H04L27/06

CPC分类号： H04L25/067 ,  H04L27/38

摘要： Receiving apparatus and method in a Multiple-Input Multiple-Output (MIMO) wireless communication system are provided. The receiver having N-ary receive antennas includes a decomposer for decomposing a channel matrix to a matrix Q and a matrix R through a QR decomposition; a detector for determining a candidate group of an n-th phase by estimating a plurality of transmit signal vectors by substituting a plurality of transmittable symbols into symbol combinations of a candidate group of a (n−1)-th phase as an n-th symbol and detecting (n+1)-th through N-th symbols using characteristics of the matrix R; a calculator for calculating square Euclidean distance values between the transmit signal vectors and a receive signal vector; and a determiner for determining the candidate group of the n-th phase by selecting transmit signal vectors having the smallest square Euclidean distance value among the transmit signal vectors.

摘要翻译： 提供了一种多输入多输出（MIMO）无线通信系统中的接收装置和方法。 具有N元接收天线的接收机包括用于通过QR分解将信道矩阵分解为矩阵Q和矩阵R的分解器; 检测器，用于通过将第（n-1）个相位的候选组的符号组合替换为第n个第（n-1）个相位的符号组合来估计多个发送信号向量来确定第n相的候选组， 符号和检测（n + 1）到第N个符号，使用矩阵R的特性; 用于计算发射信号矢量与接收信号矢量之间的欧氏距离值的计算器; 以及确定器，用于通过选择发送信号向量中具有最小的欧氏距离值的发送信号矢量来确定第n相的候选组。

公开(公告)号：US20080298491A1

公开(公告)日：2008-12-04

申请号：US12154954

申请日：2008-05-28

申请人： Sung-Yoon Jung ,  Sang-Boh Yun ,  Young-Hoon Kwon ,  Sung-Soo Hwang ,  Jong-Ho Lee ,  Hyun-Cheol Park ,  Hyoun-Kuk Kim ,  Ki-Hwan Jeon

发明人： Sung-Yoon Jung ,  Sang-Boh Yun ,  Young-Hoon Kwon ,  Sung-Soo Hwang ,  Jong-Ho Lee ,  Hyun-Cheol Park ,  Hyoun-Kuk Kim ,  Ki-Hwan Jeon

IPC分类号： H04L27/28

CPC分类号： H04L25/0206

摘要： An apparatus and a method are provided for detecting N number of TX signals in a MIMO wireless communication system. The apparatus includes an RF processor, a channel estimator, and a signal detector. The RF processor converts signals, received through multiple antennas, into baseband signals. The channel estimator estimates channel information of the respective antennas by using the received signals. The signal detector arranges the baseband signals of the respective antennas on the basis of the channel information, calculates a threshold value of each stage, and selects symbols with a cumulative metric smaller than or equal to the threshold value as candidates at each stage, to detect a TX signal vector with N number of symbols.

摘要翻译： 提供了一种用于在MIMO无线通信系统中检测N个TX信号的装置和方法。 该装置包括RF处理器，信道估计器和信号检测器。 RF处理器将通过多个天线接收的信号转换为基带信号。 信道估计器通过使用所接收的信号来估计各个天线的信道信息。 信号检测器基于信道信息布置各个天线的基带信号，计算每一级的阈值，并且选择具有小于或等于阈值的累积度量的符号作为每个级的候选，以检测 具有N个符号的TX信号向量。

公开(公告)号：US20080081626A1

公开(公告)日：2008-04-03

申请号：US11865890

申请日：2007-10-02

申请人： Jin-Ghoo CHOI ,  Sang-Boh Yun ,  Oh-Soon Shin

发明人： Jin-Ghoo CHOI ,  Sang-Boh Yun ,  Oh-Soon Shin

IPC分类号： H04Q7/20

CPC分类号： H04W72/082 ,  H04B7/155 ,  H04B7/2606 ,  H04W16/10 ,  H04W16/26 ,  H04W84/047

摘要： An apparatus and a method for mitigating interference of a neighbor cell in a multihop relay wireless communication system are provided. The method includes constituting a subframe for a link affected by interference of a neighbor cell over a first frequency band of the frame, and constituting a subframe for a link causing interference to a neighbor cell over a second frequency band of the frame. Therefore, the interference between the neighbor cells can be reduced and the amount of the resources allocated to the links can be freely adjusted.

摘要翻译： 提供了用于减轻多跳中继无线通信系统中的相邻小区的干扰的装置和方法。 所述方法包括：构成用于在所述帧的第一频带上受相邻小区的干扰影响的链路的子帧，并且构成用于在所述帧的第二频带上对相邻小区产生干扰的链路的子帧。 因此，可以减少相邻小区之间的干扰，并且可以自由地调整分配给链路的资源量。

公开(公告)号：US20070263583A1

公开(公告)日：2007-11-15

申请号：US11801558

申请日：2007-05-10

申请人： Tae-In Hyon ,  Hoon Kim ,  Dae-Young Park ,  Sang-Boh Yun ,  Sang-Wook Han ,  Youngnam Han

发明人： Tae-In Hyon ,  Hoon Kim ,  Dae-Young Park ,  Sang-Boh Yun ,  Sang-Wook Han ,  Youngnam Han

IPC分类号： H04Q7/24

CPC分类号： H04W72/04 ,  H04W4/24 ,  H04W24/00

摘要： An apparatus and method for allocating a channel using an auction algorithm in a wireless communication system. The method includes measuring a data rate of each channel; selecting one of the channels, when information on the channels is received from a base station, using the received information on the channels and the measured data rate; and determining a bidding price of the selected channel. Performance of the entire system can be improved by reducing complexity as well as guaranteeing an optimal value in the channel allocation.

摘要翻译： 一种用于在无线通信系统中使用拍卖算法分配频道的装置和方法。 该方法包括测量每个信道的数据速率; 当从基站收到关于信道的信息时，使用接收到的信道信息和测量的数据速率来选择一个信道; 以及确定所选频道的出价价格。 通过降低复杂度以及保证信道分配中的最优值，可以提高整个系统的性能。

公开(公告)号：US20070243874A1

公开(公告)日：2007-10-18

申请号：US11732484

申请日：2007-04-02

申请人： Dae-Young Park ,  Tae-In Hyon ,  Sang-Boh Yun ,  Hee-Jeong Chung ,  Nak-Myeong Kim

发明人： Dae-Young Park ,  Tae-In Hyon ,  Sang-Boh Yun ,  Hee-Jeong Chung ,  Nak-Myeong Kim

IPC分类号： H04Q7/20

CPC分类号： H04W72/082 ,  H04W16/30

摘要： A method and system for allocating resources to prevent inter-cell interference in a multi-cellular communication system, in which an interference period is detected by comparing a data transmission period in a first cell with a data transmission period in a second cell, the interference period is divided into a plurality of unit periods, each of the first cell and the second cell is divided into a plurality of unit areas corresponding to the unit periods, and resources of the unit periods corresponding to the unit areas are allocated to the unit areas.

摘要翻译： 一种用于分配资源以防止多蜂窝通信系统中的小区间干扰的方法和系统，其中通过将第一小区中的数据传输周期与第二小区中的数据传输周期进行比较来检测干扰周期，所述干扰 周期分为多个单位周期，第一小区和第二小区中的每一个被分成与单位周期对应的多个单位区域，并且与单位区域对应的单位周期的资源分配给单位区域 。

公开(公告)号：US20070015461A1

公开(公告)日：2007-01-18

申请号：US11487186

申请日：2006-07-14

申请人： Dae-Young Park ,  Seung-Young Park ,  Sang-Boh Yun

发明人： Dae-Young Park ,  Seung-Young Park ,  Sang-Boh Yun

IPC分类号： H04B7/185

CPC分类号： H04W72/1231 ,  H04B7/2606 ,  H04W72/1278 ,  H04W88/04

摘要： A method for relaying data packets to a subscriber station (SS) by taking a relay station (RS) into consideration when a base station (BS) establishes a data packet scheduling is disclosed. According to the method, a data packet is relayed by RSs, which have a signal intensity greater than a threshold value for all RSs appointed by the BS. Each SS determines whether the SS receives the data packet directly from the BS or via an RS, based on signal intensities between the SS and the BS and between the SS and RSs, and feeds channel information corresponding to the determination back to the BS, thereby allowing the data packet to be transmitted.

摘要翻译： 公开了一种通过在基站（BS）建立数据分组调度时考虑到中继站（RS）来将数据分组中继到用户站（SS）的方法。 根据该方法，数据分组由RS中继，对于由BS指定的所有RS，信号强度大于阈值。 每个SS基于SS和BS之间以及SS和RS之间的信号强度确定SS是直接从BS还是经由RS接收数据分组，并且将与该确定相对应的信道信息反馈给BS，从而 允许传输数据包。

公开(公告)号：US08838107B2

公开(公告)日：2014-09-16

申请号：US12993546

申请日：2009-05-21

申请人： Sung-Soo Hwang ,  Sang-Boh Yun ,  Joo-Hyun Lee

发明人： Sung-Soo Hwang ,  Sang-Boh Yun ,  Joo-Hyun Lee

IPC分类号： H04W36/00 ,  H04W52/02 ,  H04W24/10 ,  H04W84/04 ,  H04W28/04

CPC分类号： H04W24/10 ,  H04W28/04 ,  H04W52/0206 ,  H04W84/045 ,  Y02D70/00

摘要： The present invention relates to an apparatus and method for reducing the interference caused by a femtocell in a wireless communication system. The method comprises the steps of: measuring the intensity of a signal received from a terminal when the transmission mode is deactivated; and controlling the transmission mode to be activated according to the signal intensity, and thus has the advantage of decreasing the influence effects caused by the femtocell and reducing the power consumption in a femto base station.

摘要翻译： 本发明涉及一种用于在无线通信系统中减少由毫微微小区引起的干扰的装置和方法。 该方法包括以下步骤：当发送模式被去激活时，测量从终端接收的信号的强度; 并且根据信号强度来控制传输模式被激活，并且因此具有减小毫微微小区引起的影响效应并降低毫微微基站中的功耗的优点。