公开(公告)号：US07733813B2

公开(公告)日：2010-06-08

申请号：US12220740

申请日：2008-07-28

申请人： Oh-Soon Shin ,  Sang-Boh Yun ,  Young-Hoon Kwon

发明人： Oh-Soon Shin ,  Sang-Boh Yun ,  Young-Hoon Kwon

IPC分类号： H04B7/00 ,  H04Q7/00 ,  H03K5/00 ,  H04B15/00

CPC分类号： H04L5/1461 ,  H04B7/15585 ,  H04L25/022

摘要： A method and apparatus for canceling interference between a transmission signal and a received signal in a full-duplex RS in a communication system are provided, in which an RF/IF signal received from a first node through an antenna is converted to a baseband received signal, demodulated and decoded, a baseband transmission signal is generated by encoding and decoding the decoded data, a baseband interference estimate is calculated using the baseband received signal and the baseband transmission signal, a baseband interference is eliminated from the baseband received signal according to the baseband interference estimate, the baseband transmission signal is converted to an RF/IF transmission signal for a second node, an RF/IF interference estimate is calculated by converting amplitude of the RF/IF transmission signal and delaying it, and an RF/IF interference is eliminated from the RF/IF received signal according to the RF/IF interference estimate.

摘要翻译： 提供一种用于在通信系统中消除全双工RS中的传输信号和接收信号之间的干扰的方法和装置，其中通过天线从第一节点接收的RF / IF信号被转换为基带接收信号 通过解码和解码，通过对解码数据进行编码和解码来产生基带发送信号，使用基带接收信号和基带发送信号计算基带干扰估计，根据基带从基带接收信号消除基带干扰 干扰估计，基带传输信号被转换成用于第二节点的RF / IF传输信号，通过转换RF / IF传输信号的幅度并延迟RF / IF传输信号来计算RF / IF干扰估计，RF / IF干扰是 根据RF / IF干扰估计从RF / IF接收信号中消除。

公开(公告)号：US07729313B2

公开(公告)日：2010-06-01

申请号：US11156507

申请日：2005-06-20

申请人： Sang-Hoon Lee ,  Sung-Hyun Cho ,  Sang-Boh Yun

发明人： Sang-Hoon Lee ,  Sung-Hyun Cho ,  Sang-Boh Yun

IPC分类号： H04W4/00

CPC分类号： H04W36/18 ,  H04L5/023 ,  H04W16/12 ,  H04W36/08 ,  H04W48/20

摘要： An OFDM mobile communication system includes a system controller for dividing an OFDM symbol into a control channel and a data channel, multiplexing the control channel to control subchannels, and allocating the multiplexed control subchannels to base stations. The base stations simultaneously transmit control signals on the control allocated subchannels and data on the data channel. Mobile nodes receive an OFDM symbols with the multiplexed control channels for them and a data channel for selecting a base station according to information in the control subchannels. The mobile node simultaneously processes control subchannels received from two base stations using one physical layer module.

摘要翻译： OFDM移动通信系统包括：系统控制器，用于将OFDM符号划分为控制信道和数据信道，将控制信道复用到控制子信道，并将多路复用的控制子信道分配给基站。 基站同时发送控制分配子信道上的控制信号和数据信道上的数据。 移动节点接收具有用于它们的多路复用控制信道的OFDM符号和用于根据控制子信道中的信息来选择基站的数据信道。 移动节点使用一个物理层模块同时处理从两个基站接收的控制子信道。

公开(公告)号：US07693094B2

公开(公告)日：2010-04-06

申请号：US11864092

申请日：2007-09-28

申请人： Oh-Soon Shin ,  Sang-Boh Yun ,  Jin-Choo Choi

发明人： Oh-Soon Shin ,  Sang-Boh Yun ,  Jin-Choo Choi

IPC分类号： H04J3/00

CPC分类号： H04B7/265

摘要： An apparatus for bidirectional communication using one or more auxiliary bands in a wireless communication system is provided. A primary band transmitter transmits data over one or more primary bands in a frame. A primary band receiver receives data over the one or more primary bands in the frame. An auxiliary band transmitter transmits data over one or more first auxiliary bands in the frame. An auxiliary band receiver receives data over the one or more first auxiliary bands or over the one or more first auxiliary bands and one or more second auxiliary bands in the frame. Therefore, it is possible to facilitate a low-delay service and to cope with a rapid channel change due to high-speed movement.

摘要翻译： 提供了一种在无线通信系统中使用一个或多个辅助频带的双向通信的装置。 主频带发射机在帧中的一个或多个主频带上发送数据。 主频带接收机通过帧中的一个或多个主频带接收数据。 辅助频带发射机在帧中的一个或多个第一辅助频带上发射数据。 辅助频带接收机通过一个或多个第一辅助频带或者在该帧中的一个或多个第一辅助频带和一个或多个第二辅助频带上接收数据。 因此，可以促进低延迟服务并且能够应对由于高速运动引起的快速频道改变。

公开(公告)号：US20090227264A1

公开(公告)日：2009-09-10

申请号：US12380959

申请日：2009-03-05

申请人： Sung-Soo Hwang ,  Jin-Ghoo Choi ,  Sang-Boh Yun ,  Seung-Hee Han

发明人： Sung-Soo Hwang ,  Jin-Ghoo Choi ,  Sang-Boh Yun ,  Seung-Hee Han

IPC分类号： H04W72/08

CPC分类号： H04W88/04 ,  H04B7/2606 ,  H04W24/10 ,  H04W48/16 ,  H04W72/04 ,  H04W72/0413 ,  H04W72/085 ,  H04W84/047

摘要： An apparatus and method for receiving data in a communication system. A Mobile Station (MS) receives a Base Station (BS) signal and a Relay Station (RS) signal, measures strengths of the received BS signal and RS signal, determines whether the BS signal acts as interference to the RS signal depending on the measured strengths of the RS signal and the BS signal, and transmits the determination result to an RS in communication with the MS. The RS allocates resources using resource allocation information for the BS signal that acts as interference, and the MS receives data using the resource allocation scheme allocated from the RS.

摘要翻译： 一种用于在通信系统中接收数据的装置和方法。 移动站（MS）接收基站（BS）信号和中继站（RS）信号，测量接收到的BS信号和RS信号的强度，确定BS信号是否作为对RS信号的干扰，取决于测量的 RS信号和BS信号的强度，并将确定结果发送到与MS通信的RS。 RS使用用作干扰的BS信号的资源分配信息来分配资源，并且MS使用从RS分配的资源分配方案来接收数据。

公开(公告)号：US20090156214A1

公开(公告)日：2009-06-18

申请号：US12316727

申请日：2008-12-16

申请人： Joo-Hyun Lee ,  Jin-Ghoo Choi ,  Sang-Boh Yun ,  Jong-Ho Lee ,  Yong-Soo Cho ,  Jae-Kwon Kim ,  Yeong-Jun Kim ,  Kyung-Soo Woo ,  Hyun-Il Yoo

发明人： Joo-Hyun Lee ,  Jin-Ghoo Choi ,  Sang-Boh Yun ,  Jong-Ho Lee ,  Yong-Soo Cho ,  Jae-Kwon Kim ,  Yeong-Jun Kim ,  Kyung-Soo Woo ,  Hyun-Il Yoo

IPC分类号： H04W36/00

CPC分类号： H04W36/30 ,  H04B7/2606 ,  H04W16/26

摘要： Provided is a handover method of a wireless communication system using a hierarchical cellular scheme. In the method, signal quality of a serving node is measured, so that whether to start scanning for a handover is determined. When the scanning for the handover starts, signal qualities of a serving cell including the serving node and one or more neighbor cells are measured through a first preamble including a first identifier for distinguishing a cell. An intra-cell handover or an inter-cell handover is selected using the signal qualities of the serving cell and the neighbor cells. Therefore, a terminal can easily distinguish between the inter-cell handover and the intra-cell handover, and an overhead during a handover can be reduced because an intra-cell handover procedure is simplified.

摘要翻译： 提供了使用分层蜂窝方案的无线通信系统的切换方法。 在该方法中，测量服务节点的信号质量，从而确定是否开始扫描切换。 当切换的扫描开始时，包括服务节点和一个或多个相邻小区的服务小区的信号质量通过包括用于区分小区的第一标识符的第一前同步码进行测量。 使用服务小区和相邻小区的信号质量来选择小区内切换或小区间切换。 因此，终端可以容易地区分小区间切换和小区内切换，并且可以减少切换期间的开销，因为小区内切换过程被简化。

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。