公开(公告)号：US07949034B2

公开(公告)日：2011-05-24

申请号：US11787410

申请日：2007-04-16

申请人： Huan Cong Nguyen ,  Elisabeth De Carvalho ,  Jin-Kyu Koo ,  Su-Ryong Jeong ,  Young-Kwon Cho ,  Jae-Weon Cho ,  Dong-Seek Park ,  Ho-Kyu Choi

发明人： Huan Cong Nguyen ,  Elisabeth De Carvalho ,  Jin-Kyu Koo ,  Su-Ryong Jeong ,  Young-Kwon Cho ,  Jae-Weon Cho ,  Dong-Seek Park ,  Ho-Kyu Choi

IPC分类号： H04B1/69

CPC分类号： H04L27/2657 ,  H04L27/2655 ,  H04L27/2675

摘要： Provided is an apparatus and method for estimating an uplink frequency offset in a wireless communication system. In a receiving apparatus of a wireless communication system using a random access channel composed of two equivalent sequences, the apparatus includes a channel receiver which extracts samples corresponding to the two sequences from an input random access channel signal; a correlator which computes first and second correlation values by correlating preceding and trailing samples among the samples output from the channel receiver with a predetermined sequence; and a frequency offset estimator which estimates a frequency offset by using a ratio of the second correlation value to the first correlation value output from the correlator.

摘要翻译： 提供了一种用于估计无线通信系统中的上行链路频率偏移的装置和方法。 在使用由两个等效序列组成的随机接入信道的无线通信系统的接收装置中，该装置包括：信道接收机，从输入的随机接入信道信号中提取与两个序列对应的样本; 相关器，其通过使从信道接收机输出的样本中的前和后样本与预定序列相关来计算第一和第二相关值; 以及频率偏移估计器，其通过使用从相关器输出的第二相关值与第一相关值的比值来估计频率偏移。

公开(公告)号：US20080232343A1

公开(公告)日：2008-09-25

申请号：US11787410

申请日：2007-04-16

申请人： Huan Cong Nguyen ,  Elisabeth De Carvalho ,  Jin-Kyu Koo ,  Su-Ryong Jeong ,  Young-Kwon Cho ,  Jae-Weon Cho ,  Dong-Seek Park ,  Ho-Kyu Choi

发明人： Huan Cong Nguyen ,  Elisabeth De Carvalho ,  Jin-Kyu Koo ,  Su-Ryong Jeong ,  Young-Kwon Cho ,  Jae-Weon Cho ,  Dong-Seek Park ,  Ho-Kyu Choi

IPC分类号： H04B7/212 ,  H04L27/06

CPC分类号： H04L27/2657 ,  H04L27/2655 ,  H04L27/2675

摘要： Provided is an apparatus and method for estimating an uplink frequency offset in a wireless communication system. In a receiving apparatus of a wireless communication system using a random access channel composed of two equivalent sequences, the apparatus includes a channel receiver which extracts samples corresponding to the two sequences from an input random access channel signal; a correlator which computes first and second correlation values by correlating preceding and trailing samples among the samples output from the channel receiver with a predetermined sequence; and a frequency offset estimator which estimates a frequency offset by using a ratio of the second correlation value to the first correlation value output from the correlator.

摘要翻译： 提供了一种用于估计无线通信系统中的上行链路频率偏移的装置和方法。 在使用由两个等效序列组成的随机接入信道的无线通信系统的接收装置中，该装置包括：信道接收机，从输入的随机接入信道信号中提取与两个序列对应的样本; 相关器，其通过使从信道接收机输出的样本中的前和后样本与预定序列相关来计算第一和第二相关值; 以及频率偏移估计器，其通过使用从相关器输出的第二相关值与第一相关值的比值来估计频率偏移。

公开(公告)号：US20070135059A1

公开(公告)日：2007-06-14

申请号：US11638074

申请日：2006-12-13

申请人： Hiroyuki Yomo ,  Elisabeth De Carvalho ,  Petar Popovski ,  Jae-Hyuk Jang ,  Eun-Taek Lim ,  Young-Kwon Cho ,  Dong-Seek Park

发明人： Hiroyuki Yomo ,  Elisabeth De Carvalho ,  Petar Popovski ,  Jae-Hyuk Jang ,  Eun-Taek Lim ,  Young-Kwon Cho ,  Dong-Seek Park

IPC分类号： H04B7/00

CPC分类号： H04W52/325 ,  H04L5/0032 ,  H04L5/0048 ,  H04L5/0057 ,  H04L25/0224 ,  H04W52/245 ,  H04W52/46

摘要： An apparatus and a method for estimating the channel state of each link in a wireless relay network having fixed RSs are provided. A source estimates a channel of a source-RS link and a channel of a source-destination link using pilot signals received from an Relay Station (RS) and a destination and the source monitors reception of a pilot signal including channel state information of an RS-destination link from the RS. Upon receipt of the pilot signal, the source estimates a channel of the RS-destination link using the pilot signal and the channel state information of the RS-destination link.

摘要翻译： 提供了一种用于估计具有固定RS的无线中继网络中的每个链路的信道状态的装置和方法。 源使用从中继站（RS）和目的地接收的导频信号来估计源-RS链路的信道和源 - 目的地链路的信道，并且源监视包括RS的信道状态信息的导频信号的接收 来自RS的目录链接。 在接收到导频信号时，源使用导频信号和RS目的地链路的信道状态信息来估计RS目的地链路的信道。

公开(公告)号：US07916745B2

公开(公告)日：2011-03-29

申请号：US11900755

申请日：2007-09-13

申请人： Elisabeth De Carvalho ,  Petar Popovski ,  Seung-Hoon Park ,  David Mazzarese ,  Hyun-kyu Yu ,  Sung-Kwon Hong ,  Ho-Kyu Choi ,  Dong-Seek Park ,  Young-Kyun Kim

发明人： Elisabeth De Carvalho ,  Petar Popovski ,  Seung-Hoon Park ,  David Mazzarese ,  Hyun-kyu Yu ,  Sung-Kwon Hong ,  Ho-Kyu Choi ,  Dong-Seek Park ,  Young-Kyun Kim

IPC分类号： H04J3/16

CPC分类号： H04L1/0643 ,  H04B7/0623 ,  H04B7/0669 ,  H04B7/0673 ,  H04B7/0691 ,  H04L1/0006 ,  H04L1/0025 ,  H04L1/1671

摘要： An apparatus and method for Automatic Repeat reQuest (ARQ) in a Multi Input Multi Output (MIMO) system. The method includes computing weights of erroneous packets and weights of transmitting antennas by using channel information; sorting the weights of the erroneous packets in descending order; sorting the weights of the transmitting antennas in ascending order; and assigning the transmitting antennas to the erroneous packets according to sorting results.

摘要翻译： 一种多输入多输出（MIMO）系统中自动重复请求（ARQ）的装置和方法。 该方法包括使用信道信息来计算错误分组的权重和发送天线的权重; 以降序排列错误数据包的权重; 按照升序排列发射天线的权重; 以及根据分类结果将发送天线分配给错误的分​​组。

公开(公告)号：US07586846B2

公开(公告)日：2009-09-08

申请号：US11388682

申请日：2006-03-24

申请人： Petar Popovski ,  Hiroyuki Yomo ,  Elisabeth De Carvalho ,  Kathiravetpillai Sivanesan ,  Do-Young Kim ,  Dong-Seek Park ,  Sung-Kwon Hong

发明人： Petar Popovski ,  Hiroyuki Yomo ,  Elisabeth De Carvalho ,  Kathiravetpillai Sivanesan ,  Do-Young Kim ,  Dong-Seek Park ,  Sung-Kwon Hong

IPC分类号： H04L12/26

CPC分类号： H04L1/0033 ,  H04B7/15592 ,  H04L1/0015 ,  H04L1/007 ,  H04L41/509 ,  H04L2001/0097

摘要： A source node of a communication system selects one of a direct mode, a multi-hop mode, and a superposition mode as a transmission mode to be used for signal transmission from the source node to a destination node, taking into account data rates for a link between the source node and the destination node, a link between the source node and a delay node, and a link between the relay node and the destination node, thereby increasing the data rate, i.e., the throughput, of the entire communication system.

摘要翻译： 通信系统的源节点选择直接模式，多跳模式和叠加模式中的一个作为用于从源节点到目的地节点的信号传输的传输模式，考虑到 源节点和目的地节点之间的链路，源节点和延迟节点之间的链路以及中继节点与目的节点之间的链路，从而增加了整个通信系统的数据速率，即吞吐量。

公开(公告)号：US20070245205A1

公开(公告)日：2007-10-18

申请号：US11710854

申请日：2007-02-26

申请人： Petar Popovski ,  Hiroyuki Yomo ,  Elisabeth De Carvalho ,  Seung-Hoon Park ,  David Mazzarese ,  Marcos Katz ,  Dong-Seek Park ,  Sung-Kwon Hong ,  Hak-Ju Lee

发明人： Petar Popovski ,  Hiroyuki Yomo ,  Elisabeth De Carvalho ,  Seung-Hoon Park ,  David Mazzarese ,  Marcos Katz ,  Dong-Seek Park ,  Sung-Kwon Hong ,  Hak-Ju Lee

IPC分类号： H04L1/18

CPC分类号： H04L1/0668 ,  H04L1/0001 ,  H04L1/0006 ,  H04L1/1671 ,  H04L1/1845 ,  H04L1/1893

摘要： Automatic Repeat reQuest (ARQ) apparatus and method of a Multiple Input Multiple Output (MIMO system are provided. The ARQ method includes decoding, when one or more packets are received, the received packets and trying to detect the decoded packets; and storing, when error is detected from the packets, the corresponding error packet, requesting a transmitter to retransmit N-ary packets from which the error is detected and to transmit (M-N)-ary new packets when the number of the error packets N is smaller than the total number of the transmitted packets M. Accordingly, the error rate of the retransmitted data can be minimized, the number of retransmissions can be decreased, and the overall data transmission rate can be raised.

摘要翻译： 自动重复请求（ARQ）多输入多输出的装置和方法（MIMO系统），ARQ方法包括当接收到一个或多个分组时对解码的分组进行解码，并尝试检测解码的分组; 从分组中检测到错误，相应的错误分组，请求发送器重传从其检测到错误的N个分组，并且当错误分组N的数量小于总数时发送（MN）个新的分组 发送数据包M的数量。因此，重发数据的错误率可以最小化，可以减少重传次数，并且可以提高整体数据传输速率。

公开(公告)号：US08060802B2

公开(公告)日：2011-11-15

申请号：US11710854

申请日：2007-02-26

申请人： Petar Popovski ,  Hiroyuki Yomo ,  Elisabeth De Carvalho ,  Seung-Hoon Park ,  David Mazzarese ,  Marcos Daniel Katz ,  Dong-Seek Park ,  Sung-Kwon Hong ,  Hak-Ju Lee

发明人： Petar Popovski ,  Hiroyuki Yomo ,  Elisabeth De Carvalho ,  Seung-Hoon Park ,  David Mazzarese ,  Marcos Daniel Katz ,  Dong-Seek Park ,  Sung-Kwon Hong ,  Hak-Ju Lee

IPC分类号： H04L1/18

CPC分类号： H04L1/0668 ,  H04L1/0001 ,  H04L1/0006 ,  H04L1/1671 ,  H04L1/1845 ,  H04L1/1893

摘要： Automatic Repeat reQuest (ARQ) apparatus and method of a Multiple Input Multiple Output (MIMO system are provided. The ARQ method includes decoding, when one or more packets are received, the received packets and trying to detect the decoded packets; and storing, when error is detected from the packets, the corresponding error packet, requesting a transmitter to retransmit N-ary packets from which the error is detected and to transmit (M-N)-ary new packets when the number of the error packets N is smaller than the total number of the transmitted packets M. Accordingly, the error rate of the retransmitted data can be minimized, the number of retransmissions can be decreased, and the overall data transmission rate can be raised.

摘要翻译： 自动重复请求（ARQ）多输入多输出的装置和方法（MIMO系统），ARQ方法包括当接收到一个或多个分组时对解码的分组进行解码，并尝试检测解码的分组; 从分组中检测到错误，相应的错误分组，请求发送器重传从其检测到错误的N个分组，并且当错误分组N的数量小于总数时发送（MN）个新的分组 发送数据包M的数量。因此，重发数据的错误率可以最小化，可以减少重传次数，并且可以提高整体数据传输速率。

公开(公告)号：US20070223374A1

公开(公告)日：2007-09-27

申请号：US11388682

申请日：2006-03-24

申请人： Petar Popovski ,  Hiroyuki Yomo ,  Elisabeth De Carvalho ,  Kathiravetpillai Sivanesan ,  Do-Young Kim ,  Dong-Seek Park ,  Sung-Kwon Hong

发明人： Petar Popovski ,  Hiroyuki Yomo ,  Elisabeth De Carvalho ,  Kathiravetpillai Sivanesan ,  Do-Young Kim ,  Dong-Seek Park ,  Sung-Kwon Hong

IPC分类号： H04L12/26 ,  H04J1/16 ,  H04J3/22

CPC分类号： H04L1/0033 ,  H04B7/15592 ,  H04L1/0015 ,  H04L1/007 ,  H04L41/509 ,  H04L2001/0097

摘要： A source node of a communication system selects one of a direct mode, a multi-hop mode, and a superposition mode as a transmission mode to be used for signal transmission from the source node to a destination node, taking into account data rates for a link between the source node and the destination node, a link between the source node and a delay node, and a link between the relay node and the destination node, thereby increasing the data rate, i.e., the throughput, of the entire communication system.

摘要翻译： 通信系统的源节点选择直接模式，多跳模式和叠加模式中的一个作为用于从源节点到目的地节点的信号传输的传输模式，考虑到 源节点和目的地节点之间的链路，源节点和延迟节点之间的链路以及中继节点与目的节点之间的链路，从而增加了整个通信系统的数据速率，即吞吐量。

公开(公告)号：US08355474B2

公开(公告)日：2013-01-15

申请号：US12098068

申请日：2008-04-04

申请人： Elisabeth De Carvalho ,  Muhammad Imadur Rahman ,  David Mazzarese ,  Yang Tang ,  Jin-Kyu Koo

发明人： Elisabeth De Carvalho ,  Muhammad Imadur Rahman ,  David Mazzarese ,  Yang Tang ,  Jin-Kyu Koo

IPC分类号： H04B7/10

CPC分类号： H04B7/0854 ,  H04B7/022 ,  H04B7/0669

摘要： An apparatus and method for interference cancellation in multiple-antenna communication system is disclosed. Accordingly, a receiver of a multiple-antenna communication system cancels interference by selecting either a multiple-symbol processing scheme or a single-symbol processing scheme depending on a signal type, thereby improving performance of the communication system.

摘要翻译： 公开了一种用于多天线通信系统中的干扰消除的装置和方法。 因此，多天线通信系统的接收机通过根据信号类型选择多符号处理方案或单符号处理方案来消除干扰，从而提高通信系统的性能。