公开(公告)号：US07953178B2

公开(公告)日：2011-05-31

申请号：US11800024

申请日：2007-05-03

申请人： Do-Young Kim ,  Hak-Ju Lee ,  Dong-Seek Park ,  Sung-Kwon Hong ,  Chang-Ho Suh

发明人： Do-Young Kim ,  Hak-Ju Lee ,  Dong-Seek Park ,  Sung-Kwon Hong ,  Chang-Ho Suh

IPC分类号： H04K1/02 ,  H04L25/49

CPC分类号： H04B1/709 ,  H04B1/707 ,  H04L27/2613 ,  H04L27/262 ,  H04L27/2656

摘要： An apparatus and method for signal detection in a Broadband Wireless Access (BWA) system are provided, in which in a transmitter, a first preamble sequence generator generates preamble sequences, a low-Peak-to-Average Power Ratio (PAPR) preamble sequence selector selects a first low-PAPR preamble sequence from among the generated preamble sequences, a preamble sequence copier copies the first low-PAPR preamble sequence at least once and outputs the first low-PAPR preamble sequence and the at least one copy, a complex conjugator generates preamble sequences orthogonal to the first low-PAPR preamble sequence and the at least one copy by calculating complex conjugates of the first low-PAPR preamble sequence and the at least one copy, and a second preamble sequence generator generates at least one second low-PAPR preamble sequence using the first low-PAPR preamble sequence.

摘要翻译： 提供了一种在宽带无线接入（BWA）系统中用于信号检测的装置和方法，其中在发射机中，第一前同步码序列发生器产生前导码序列，低峰值到平均功率比（PAPR）前同步码序列选择器 从所生成的前导码序列中选择第一低PAPR前同步码序列，前同步码序列复制器至少复制第一低PAPR前同步码序列一次，并输出第一低PAPR前导序列和至少一个拷贝，复共轭产生 通过计算第一低PAPR前导码序列和至少一个副本的复共轭而与第一低PAPR前导码序列和至少一个拷贝正交的前导码序列，并且第二前导序列发生器产生至少一个第二低PAPR 使用第一低PAPR前导序列的前导码序列。

公开(公告)号：US20070258530A1

公开(公告)日：2007-11-08

申请号：US11800024

申请日：2007-05-03

申请人： Do-Young Kim ,  Hak-Ju Lee ,  Dong-Seek Park ,  Sung-Kwon Hong ,  Chang-Ho Suh

发明人： Do-Young Kim ,  Hak-Ju Lee ,  Dong-Seek Park ,  Sung-Kwon Hong ,  Chang-Ho Suh

IPC分类号： H04K1/10 ,  H04L27/06

CPC分类号： H04B1/709 ,  H04B1/707 ,  H04L27/2613 ,  H04L27/262 ,  H04L27/2656

摘要： An apparatus and method for signal detection in a Broadband Wireless Access (BWA) system are provided, in which in a transmitter, a first preamble sequence generator generates preamble sequences, a low-Peak-to-Average Power Ratio (PAPR) preamble sequence selector selects a first low-PAPR preamble sequence from among the generated preamble sequences, a preamble sequence copier copies the first low-PAPR preamble sequence at least once and outputs the first low-PAPR preamble sequence and the at least one copy, a complex conjugator generates preamble sequences orthogonal to the first low-PAPR preamble sequence and the at least one copy by calculating complex conjugates of the first low-PAPR preamble sequence and the at least one copy, and a second preamble sequence generator generates at least one second low-PAPR preamble sequence using the first low-PAPR preamble sequence.

摘要翻译： 提供了一种在宽带无线接入（BWA）系统中用于信号检测的装置和方法，其中在发射机中，第一前同步码序列发生器产生前导码序列，低峰值到平均功率比（PAPR）前同步码序列选择器 从所生成的前导码序列中选择第一低PAPR前同步码序列，前同步码序列复制器至少复制第一低PAPR前同步码序列一次，并输出第一低PAPR前导序列和至少一个拷贝，复共轭产生 通过计算第一低PAPR前导码序列和至少一个副本的复共轭而与第一低PAPR前导码序列和至少一个拷贝正交的前导码序列，并且第二前导序列发生器产生至少一个第二低PAPR 使用第一低PAPR前导序列的前导码序列。

公开(公告)号：US20070190934A1

公开(公告)日：2007-08-16

申请号：US11657415

申请日：2007-01-24

申请人： Do-Young Kim ,  Hak-Ju Lee ,  Dong-Seek Park ,  Sung-Kwon Hong ,  Seung-Hoon Park

发明人： Do-Young Kim ,  Hak-Ju Lee ,  Dong-Seek Park ,  Sung-Kwon Hong ,  Seung-Hoon Park

IPC分类号： H04B3/36

CPC分类号： H04B7/15557

摘要： A method for selecting a relay mode depending on channel status of relay links in a multihop relay broadband wireless communication system and a Relay Station (RS) apparatus for supporting the method. When signals are received from a Base Station (BS) and a Mobile Station (MS), channel status values (e.g., eigenvalue, mutual information, and probability error) of relay links (BS-RS link and RS-MS link) are estimated using the received signals. The estimated channel status values are compared with a preset reference value. According to a result of the comparison, the relay mode for relaying the received signals is selected. Accordingly, the reliability of the relayed signal can be enhanced and the capacity of the signal link can be increased.

摘要翻译： 根据多跳中继宽带无线通信系统中的中继链路的信道状态和用于支持该方法的中继站（RS）装置，选择中继模式的方法。 当从基站（BS）和移动台（MS）接收到信号时，估计中继链路（BS-RS链路和RS-MS链路）的信道状态值（例如特征值，互信息和概率误差） 使用接收到的信号。 将估计的通道状态值与预设的参考值进行比较。 根据比较的结果，选择用于中继接收信号的中继模式。 因此，可以提高中继信号的可靠性，并且可以提高信号链路的容量。

公开(公告)号：US08165521B2

公开(公告)日：2012-04-24

申请号：US11657415

申请日：2007-01-24

申请人： Do-Young Kim ,  Hak-Ju Lee ,  Dong-Seek Park ,  Sung-Kwon Hong ,  Seung-Hoon Park

发明人： Do-Young Kim ,  Hak-Ju Lee ,  Dong-Seek Park ,  Sung-Kwon Hong ,  Seung-Hoon Park

IPC分类号： H04B3/36

CPC分类号： H04B7/15557

摘要： A method for selecting a relay mode depending on channel status of relay links in a multihop relay broadband wireless communication system and a Relay Station (RS) apparatus for supporting the method. When signals are received from a Base Station (BS) and a Mobile Station (MS), channel status values (e.g., eigenvalue, mutual information, and probability error) of relay links (BS-RS link and RS-MS link) are estimated using the received signals. The estimated channel status values are compared with a preset reference value. According to a result of the comparison, the relay mode for relaying the received signals is selected. Accordingly, the reliability of the relayed signal can be enhanced and the capacity of the signal link can be increased.

摘要翻译： 根据多跳中继宽带无线通信系统中的中继链路的信道状态和用于支持该方法的中继站（RS）装置，选择中继模式的方法。 当从基站（BS）和移动台（MS）接收到信号时，估计中继链路（BS-RS链路和RS-MS链路）的信道状态值（例如特征值，互信息和概率误差） 使用接收到的信号。 将估计的通道状态值与预设的参考值进行比较。 根据比较的结果，选择用于中继接收信号的中继模式。 因此，可以提高中继信号的可靠性，并且可以提高信号链路的容量。

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：US20070223619A1

公开(公告)日：2007-09-27

申请号：US11714701

申请日：2007-03-06

申请人： Hak-Ju Lee ,  Sung-Kwon Hong ,  Dong-Seek Park ,  Daesik Hong ,  Sungtae Kim

发明人： Hak-Ju Lee ,  Sung-Kwon Hong ,  Dong-Seek Park ,  Daesik Hong ,  Sungtae Kim

IPC分类号： H04L1/02

CPC分类号： H04L1/0026 ,  H04B7/0417 ,  H04B7/0626 ,  H04L25/0246

摘要： An apparatus and method for controlling amount of information to be fed back in a multiple antenna system in a multi-user environment. The apparatus includes a channel estimator which estimates channel values by using an input signal; a Singular Value Decomposition (SVD) operator which decomposes singular values from the estimated channel values; and a feedback determining unit which uses the singular values to compute channel capacity that can be obtained according to the amount of channel information to be fed back, and selects the channel information to be fed back by using the channel capacity.

摘要翻译： 一种用于在多用户环境中控制在多天线系统中反馈的信息量的装置和方法。 该装置包括通过使用输入信号来估计信道值的信道估计器; 奇异值分解（SVD）算子，其从估计的信道值分解奇异值; 以及反馈确定单元，其使用奇异值来计算可以根据要反馈的信道信息的量获得的信道容量，并且通过使用信道容量来选择要反馈的信道信息。

公开(公告)号：US07876851B2

公开(公告)日：2011-01-25

申请号：US11714701

申请日：2007-03-06

申请人： Hak-Ju Lee ,  Sung-Kwon Hong ,  Dong-Seek Park ,  Daesik Hong ,  Sungtae Kim

发明人： Hak-Ju Lee ,  Sung-Kwon Hong ,  Dong-Seek Park ,  Daesik Hong ,  Sungtae Kim

IPC分类号： H04B7/02 ,  H04L1/02

CPC分类号： H04L1/0026 ,  H04B7/0417 ,  H04B7/0626 ,  H04L25/0246

摘要： An apparatus and method for controlling amount of information to be fed back in a multiple antenna system in a multi-user environment. The apparatus includes a channel estimator which estimates channel values by using an input signal; a Singular Value Decomposition (SVD) operator which decomposes singular values from the estimated channel values; and a feedback determining unit which uses the singular values to compute channel capacity that can be obtained according to the amount of channel information to be fed back, and selects the channel information to be fed back by using the channel capacity.

摘要翻译： 一种用于在多用户环境中控制在多天线系统中反馈的信息量的装置和方法。 该装置包括通过使用输入信号来估计信道值的信道估计器; 奇异值分解（SVD）算子，其从估计的信道值分解奇异值; 以及反馈确定单元，其使用奇异值来计算可以根据要反馈的信道信息的量获得的信道容量，并且通过使用信道容量来选择要反馈的信道信息。

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：US08000427B2

公开(公告)日：2011-08-16

申请号：US11837295

申请日：2007-08-10

申请人： Hak-Ju Lee ,  David Mazzarese ,  Dong-Seek Park

发明人： Hak-Ju Lee ,  David Mazzarese ,  Dong-Seek Park

IPC分类号： H04L7/00

CPC分类号： H04B7/0617 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/0632 ,  H04W72/1231

摘要： Provided is an apparatus and method for low-complexity scheduling in a multi-user Multi-Input Multi-Output (MIMO) system. In a method for scheduling in a MIMO system, a vector is set on the basis of channel information for all user terminals. A scalar for the vector is initialized. A user terminal that has the greatest scalar among unselected user terminals is selected. A user set is updated by adding the selected user terminal therein. The vector and the scalar for a user terminal not included in the user set are updated. Accordingly, a high transmission capacity can be provided while minimizing the influence of an interference signal. Also, the computation amount can be reduced greatly.

摘要翻译： 提供了一种用于多用户多输入多输出（MIMO）系统中的低复杂度调度的装置和方法。 在MIMO系统中进行调度的方法中，基于所有用户终端的信道信息来设定向量。 矢量的标量被初始化。 选择在未选择的用户终端中具有最大标量的用户终端。 通过在其中添加所选择的用户终端来更新用户集。 不包括在用户组中的用户终端的向量和标量被更新。 因此，可以在使干扰信号的影响最小化的同时提供高传输容量。 此外，计算量可以大大降低。

公开(公告)号：US20080167061A1

公开(公告)日：2008-07-10

申请号：US11985325

申请日：2007-11-14

申请人： David Mazzarese ,  Hak-Ju Lee ,  Sung-Ryul Yun ,  Dong-Seek Park

发明人： David Mazzarese ,  Hak-Ju Lee ,  Sung-Ryul Yun ,  Dong-Seek Park

IPC分类号： H04B7/00

CPC分类号： H04B7/0452 ,  H04L5/0007 ,  H04L5/005 ,  H04L27/2647

摘要： An apparatus and method for transmitting and receiving a signal and a subcarrier allocation structure therefor in a multi-user multi-antenna communication system are provided, in which a transmitter calculates receive filters for each of a plurality of receivers or for a plurality of antennas in a receiver, determines the index of a vector having a correlation with the calculated receive filters in a preset codebook vector to be a receive filter index, and transmits the receive filter index to the receiver

摘要翻译： 提供了一种用于在多用户多天线通信系统中发送和接收信号及其子载波分配结构的装置和方法，其中发射机针对多用户多天线通信系统中的每一个接收机或多个天线 接收机确定具有与预设码本向量中的计算的接收滤波器相关的矢量的索引为接收滤波器索引，并将接收滤波器索引发送到接收机