公开(公告)号：US08068456B2

公开(公告)日：2011-11-29

申请号：US12041213

申请日：2008-03-03

申请人： Hiroyuki Yomo ,  Elisabeth de Carvalho ,  Kathiravetpillai Sivanesan ,  Eun-Taek Lim ,  Young-Kwon Cho

发明人： Hiroyuki Yomo ,  Elisabeth de Carvalho ,  Kathiravetpillai Sivanesan ,  Eun-Taek Lim ,  Young-Kwon Cho

IPC分类号： H04W4/00 ,  H04J3/16 ,  H04J3/22

CPC分类号： H04B7/2606

摘要： A system and method for transmitting and receiving a signal in a communication system using a relay scheme. A base station receives a first signal in a first time interval from a first mobile station which is at least one mobile station located in a third region which is a region where a first region which is a region of the base station itself overlaps with a second region which is a region of a relay station. The relay station receives a second signal in the first time interval from a second mobile station which is at least one mobile station located in a fourth region which is a region not overlapping with the first region in the second region, and receives the first signal from the first mobile station. The relay station transmits a third signal including the first signal and the second signal to the base station in a second time interval. The base station receives the third signal in the second time interval, and cancels the first signal from the third signal to detect the second signal.

摘要翻译： 一种用于在使用中继方案的通信系统中发送和接收信号的系统和方法。 基站从第一移动台接收第一信号，第一移动台是位于第三区域中的至少一个移动站，第三区域是基站本身的区域的第一区域与第二区域重叠的区域 区域，其是中继站的区域。 中继站在第一时间间隔从第二移动台接收第二信号，该第二移动台是位于与第二区域中不与第一区域重叠的区域的第四区域中的至少一个移动站，并且从第二移动站接收第一信号 第一个移动台。 中继站在第二时间间隔中向基站发送包括第一信号和第二信号的第三信号。 基站在第二时间间隔接收第三信号，并且从第三信号中取消第一信号以检测第二信号。

公开(公告)号：US20080234003A1

公开(公告)日：2008-09-25

申请号：US12053042

申请日：2008-03-21

申请人： Elisabeth de Carvalho ,  Hiroyuki Yomo ,  Kathiravetpillai Sivanesan ,  Eun-Taek Lim ,  David Mazzarese ,  Young-Kwon Cho

发明人： Elisabeth de Carvalho ,  Hiroyuki Yomo ,  Kathiravetpillai Sivanesan ,  Eun-Taek Lim ,  David Mazzarese ,  Young-Kwon Cho

IPC分类号： H04M1/00

CPC分类号： H04W72/085

摘要： An apparatus and method for detecting a signal in a broadband wireless communication system are provided. In a Base Station, an offset estimator estimates frequency offsets of a signal received from each of a plurality of Mobile Stations (MSs), a channel estimator estimates a channel matrix having channel coefficients of subcarriers as elements, for each MS, a modeler models the received signals using the frequency offsets of the MSs and the channel matrices of the MSs, and a detector detects signals transmitted from the MSs using the modeled received signals.

摘要翻译： 提供了一种用于在宽带无线通信系统中检测信号的装置和方法。 在基站中，偏移估计器估计从多个移动站（MS）中的每一个接收的信号的频率偏移，信道估计器针对每个MS估计具有子载波的信道系数的信道矩阵作为元素，建模者对 使用MS的频率偏移和MS的信道矩阵的接收信号，并且检测器使用建模的接收信号来检测从MS发送的信号。

公开(公告)号：US20080227388A1

公开(公告)日：2008-09-18

申请号：US12049577

申请日：2008-03-17

申请人： Petar Popovski ,  Elisabeth de Carvalho ,  Kathiravetpillai Sivanesan ,  Eun-Taek Lim ,  Ho-Kyu Choi ,  Young-Kwon Cho

发明人： Petar Popovski ,  Elisabeth de Carvalho ,  Kathiravetpillai Sivanesan ,  Eun-Taek Lim ,  Ho-Kyu Choi ,  Young-Kwon Cho

IPC分类号： H04B7/14

CPC分类号： H04B7/2603 ,  H04W72/12 ,  H04W88/04 ,  H04W88/08

摘要： A method and apparatus for joint unicast using multi-user superposition coding in a wireless relay system are provided. A BS superposition-encodes first and second data messages directed to first and second MSs, respectively, scheduled at a current scheduling instant. The first and second data messages carry first and second information bit streams for the first and second MSs, respectively. The first MS has a relatively good direct link to the BS, and the second MS has a relatively bad direct link to the BS. The superposition-coded data is transmitted to the first MS and an RS connected between the BS and the first and second MSs. The RS receives the superposition-coded data from the BS, extracts the second information bit stream by decoding the superposition-coded data, and transmits a third data message carrying the second information bit stream to the first and second MSs.

摘要翻译： 提供了一种在无线中继系统中使用多用户叠加编码的联合单播的方法和装置。 BS在当前调度时刻分别对分别指向第一和第二MS的第一和第二数据消息进行叠加编码。 第一和第二数据消息分别携带第一和第二MS的第一和第二信息比特流。 第一MS具有与BS相对较好的直接链路，第二MS具有与BS相对较差的直接链路。 叠加编码数据被发送到第一MS和连接在BS与第一和第二MS之间的RS。 RS从BS接收叠加编码数据，通过解码叠加编码数据提取第二信息比特流，并将携带第二信息比特流的第三数据消息发送给第一和第二MS。

公开(公告)号：US07920825B2

公开(公告)日：2011-04-05

申请号：US12049577

申请日：2008-03-17

申请人： Petar Popovski ,  Elisabeth de Carvalho ,  Kathiravetpillai Sivanesan ,  Eun-Taek Lim ,  Ho-Kyu Choi ,  Young-Kwon Cho

发明人： Petar Popovski ,  Elisabeth de Carvalho ,  Kathiravetpillai Sivanesan ,  Eun-Taek Lim ,  Ho-Kyu Choi ,  Young-Kwon Cho

IPC分类号： H04B7/15

CPC分类号： H04B7/2603 ,  H04W72/12 ,  H04W88/04 ,  H04W88/08

摘要： A method and apparatus for joint unicast using multi-user superposition coding in a wireless relay system are provided. A BS superposition-encodes first and second data messages directed to first and second MSs, respectively, scheduled at a current scheduling instant. The first and second data messages carry first and second information bit streams for the first and second MSs, respectively. The first MS has a relatively good direct link to the BS, and the second MS has a relatively bad direct link to the BS. The superposition-coded data is transmitted to the first MS and an RS connected between the BS and the first and second MSs. The RS receives the superposition-coded data from the BS, extracts the second information bit stream by decoding the superposition-coded data, and transmits a third data message carrying the second information bit stream to the first and second MSs.

摘要翻译： 提供了一种在无线中继系统中使用多用户叠加编码的联合单播的方法和装置。 BS在当前调度时刻分别对分别指向第一和第二MS的第一和第二数据消息进行叠加编码。 第一和第二数据消息分别携带第一和第二MS的第一和第二信息比特流。 第一MS具有与BS相对较好的直接链路，第二MS具有与BS相对较差的直接链路。 叠加编码数据被发送到第一MS和连接在BS与第一和第二MS之间的RS。 RS从BS接收叠加编码数据，通过解码叠加编码数据提取第二信息比特流，并将携带第二信息比特流的第三数据消息发送到第一和第二MS。

公开(公告)号：US07801532B2

公开(公告)日：2010-09-21

申请号：US11477247

申请日：2006-06-29

申请人： Chang-Ho Suh ,  Dong-Seek Park ,  Young-Kwon Cho ,  Eun-Taek Lim ,  Jin-Kyu Koo ,  Jung-Soo Woo

发明人： Chang-Ho Suh ,  Dong-Seek Park ,  Young-Kwon Cho ,  Eun-Taek Lim ,  Jin-Kyu Koo ,  Jung-Soo Woo

IPC分类号： H04W40/00

CPC分类号： H04L27/265 ,  H04L27/2634

摘要： A method for transmitting a signal by a transmitter in a frequency overlay communication system. The method includes generating y first signal groups by shuffling input information data with a length yN on an N-by-N grouping basis according to a first shuffling scheme; generating y second signal groups by performing N-point IFFT on each of the first signal groups; generating y third signal groups by multiplying each of the second signal groups by preset values; generating N fourth signal groups by de-shuffling the third signal groups on a y-by-y grouping basis according to a de-shuffling scheme; generating N fifth signal groups by performing y-point IDFT on each of the fourth signal groups; generating y sixth signal groups by shuffling the fifth signal groups according to a second shuffling scheme, and serial-converting the sixth signal groups; and performing a transmission RF process on the serial-converted signal and transmitting the RF-processed signal to a receiver.

摘要翻译： 一种用于在频率覆盖通信系统中由发射机发送信号的方法。 该方法包括：根据第一混洗方案，以N×N分组为基础，以长度为yN的输入信息数据进行混洗，生成y个第一信号组; 通过对每个第一信号组执行N点IFFT来产生y个第二信号组; 通过将每个第二信号组乘以预设值来产生y个第三信号组; 根据去混洗方案，以y-y分组为基础对第三信号组进行去混洗，生成N个第四信号组; 通过对每个第四信号组执行y点IDFT来产生N个第五信号组; 通过根据第二混洗方案混洗第五信号组来产生y个第六信号组，并串行转换第六信号组; 对串行转换信号执行发送RF处理，并将RF处理的信号发送到接收机。

公开(公告)号：US20070097900A1

公开(公告)日：2007-05-03

申请号：US11588433

申请日：2006-10-27

申请人： Do-Young Kim ,  Sung-Kwon Hong ,  Young-Kwon Cho ,  Eun-Taek Lim ,  Dong-Seek Park ,  Marcos Katz

发明人： Do-Young Kim ,  Sung-Kwon Hong ,  Young-Kwon Cho ,  Eun-Taek Lim ,  Dong-Seek Park ,  Marcos Katz

IPC分类号： H04B7/185

CPC分类号： H04W52/46 ,  H04W52/226 ,  H04W52/283

摘要： An apparatus and method for controlling power in a multi-hop relay broadband wireless communication system are provided. A BS sends a signal to an RS and an MS to estimate distances between the BS, the RS and the MS. Upon receipt of signals from the RS and the MS, the BS measures ToAs of the received signals and detects time information included in the received signals, and calculates propagation delays between the BS, the RS and the MS based on the ToAs and the time information. The BS estimates the distances between the BS, the RS and the MS using the propagation delays, and controls transmission power according to the estimated distances.

摘要翻译： 提供了一种用于控制多跳中继宽带无线通信系统中的功率的装置和方法。 BS向RS和MS发送信号以估计BS，RS和MS之间的距离。 在接收到来自RS和MS的信号时，BS测量接收到的信号的ToAs并且检测包括在接收信号中的时间信息，并且基于ToAs和时间信息来计算BS，RS和MS之间的传播延迟 。 BS使用传播延迟估计BS，RS和MS之间的距离，并且根据估计的距离来控制发射功率。

公开(公告)号：US20070093252A1

公开(公告)日：2007-04-26

申请号：US11527313

申请日：2006-09-26

申请人： Muhammad Rahman ,  Ragnar Reynisson ,  Frank Fitzek ,  Ramjee Prasad ,  Jin-Kyu Koo ,  Dong-Seek Park ,  Young-Kwon Cho ,  Young-Kyun Kim ,  Eun-Taek Lim ,  Jun-Young Jung

发明人： Muhammad Rahman ,  Ragnar Reynisson ,  Frank Fitzek ,  Ramjee Prasad ,  Jin-Kyu Koo ,  Dong-Seek Park ,  Young-Kwon Cho ,  Young-Kyun Kim ,  Eun-Taek Lim ,  Jun-Young Jung

IPC分类号： H04Q7/20

CPC分类号： H04L1/0001 ,  H04B1/7156 ,  H04L1/0033 ,  H04L27/2608

摘要： A frequency resource operating apparatus and method for transmitting and receiving data at a different hopping pattern speed according to a CSI in a BWA communication system are provided. In a method of transmitting and receiving data using CSI in a mobile communication system, a BS sets the CSI of an MS to an initial CSI and sends data to the MS according to the initial CSI. The MS sends a downlink CSI to the BS. The BS groups the MS based on the downlink CSI and sends data to the MS according to a hopping pattern for the group of the MS among hopping patterns preset for predetermined groups.

摘要翻译： 提供了一种根据BWA通信系统中的CSI以不同跳频图形速度发送和接收数据的频率资源操作装置和方法。 在移动通信系统中使用CSI发送和接收数据的方法中，BS将MS的CSI设置为初始CSI，并根据初始CSI向MS发送数据。 MS向BS发送下行链路CSI。 BS基于下行链路CSI对MS进行分组，并且根据针对预定组预定的跳频模式中的MS组的跳频模式向MS发送数据。

公开(公告)号：US20060291372A1

公开(公告)日：2006-12-28

申请号：US11474558

申请日：2006-06-26

申请人： Jin-Kyu Koo ,  Chang-Ho Suh ,  Dong-Seek Park ,  Young-Kwon Cho ,  Eun-Taek Lim

发明人： Jin-Kyu Koo ,  Chang-Ho Suh ,  Dong-Seek Park ,  Young-Kwon Cho ,  Eun-Taek Lim

IPC分类号： H04J11/00

CPC分类号： H04L27/2613 ,  H04B2201/70701

摘要： An apparatus and method for reducing pilot overhead in a broadband wireless communication system are provided. A data symbol mapper maps data symbols to be transmitted into subcarriers and detects values of the data symbols mapped into predefined subcarriers. A pilot generator determines masking codes for each pilot group by using the detected values of the data symbols and masks the determined masking codes into pilot symbols of the corresponding pilot group. A pilot symbol mapper maps the masked pilot symbols received from the pilot generator into subcarriers.

摘要翻译： 提供了一种用于减少宽带无线通信系统中的导频开销的装置和方法。 数据符号映射器映射要发送到子载波中的数据符号，并且检测映射到预定子载波中的数据符号的值。 导频发生器通过使用检测到的数据符号的值来确定每个导频组的掩码，并将确定的掩码代码掩蔽成相应导频组的导频符号。 导频符号映射器将从导频发生器接收的屏蔽导频符号映射成子载波。

公开(公告)号：US07916688B2

公开(公告)日：2011-03-29

申请号：US11654177

申请日：2007-01-17

申请人： Megumi Kaneko ,  Petar Popovski ,  Jung-Min Ro ,  Eun-Taek Lim ,  Young-Kwon Cho ,  Dong-Seek Park

发明人： Megumi Kaneko ,  Petar Popovski ,  Jung-Min Ro ,  Eun-Taek Lim ,  Young-Kwon Cho ,  Dong-Seek Park

IPC分类号： H04Q7/00

CPC分类号： H04W72/085 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/003 ,  H04L5/0053 ,  H04W72/0413

摘要： A method is provided for transmitting/receiving data in a communication system. The method includes measuring, by a Mobile Station (MS), states of channels which are allocated in a scheme prearranged with a Base Station (BS), and encoding measured channel state information in a scheme corresponding to an allocation scheme of the allocated channels; and configuring a message including the encoded channel state information, and transmitting the configured message to the BS.

摘要翻译： 提供了一种用于在通信系统中发送/接收数据的方法。 该方法包括通过移动台（MS）测量在基站（BS）中预先排列的方案中分配的信道的状态，并且以对应于所分配的信道的分配方案的方案对所测量的信道状态信息进行编码; 以及配置包括编码信道状态信息的消息，以及将配置的消息发送到BS。

公开(公告)号：US07768987B2

公开(公告)日：2010-08-03

申请号：US11527313

申请日：2006-09-26

申请人： Muhammad Imadur Rahman ,  Ragnar Viôir Reynisson ,  Frank Hanns Paul Fitzek ,  Ramjee Prasad ,  Jin-Kyu Koo ,  Dong-Seek Park ,  Young-Kwon Cho ,  Young-Kyun Kim ,  Eun-Taek Lim ,  Jun-Young Jung

发明人： Muhammad Imadur Rahman ,  Ragnar Viôir Reynisson ,  Frank Hanns Paul Fitzek ,  Ramjee Prasad ,  Jin-Kyu Koo ,  Dong-Seek Park ,  Young-Kwon Cho ,  Young-Kyun Kim ,  Eun-Taek Lim ,  Jun-Young Jung

IPC分类号： H04B7/208

CPC分类号： H04L1/0001 ,  H04B1/7156 ,  H04L1/0033 ,  H04L27/2608

摘要： A frequency resource operating apparatus and method for transmitting and receiving data at a different hopping pattern speed according to a CSI in a BWA communication system are provided. In a method of transmitting and receiving data using CSI in a mobile communication system, a BS sets the CSI of an MS to an initial CSI and sends data to the MS according to the initial CSI. The MS sends a downlink CSI to the BS. The BS groups the MS based on the downlink CSI and sends data to the MS according to a hopping pattern for the group of the MS among hopping patterns preset for predetermined groups.

摘要翻译： 提供了一种根据BWA通信系统中的CSI以不同跳频图形速度发送和接收数据的频率资源操作装置和方法。 在移动通信系统中使用CSI发送和接收数据的方法中，BS将MS的CSI设置为初始CSI，并根据初始CSI向MS发送数据。 MS向BS发送下行链路CSI。 BS基于下行链路CSI对MS进行分组，并且根据针对预定组预定的跳频模式中的MS组的跳频模式向MS发送数据。