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：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：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：US20070155338A1

公开(公告)日：2007-07-05

申请号：US11649185

申请日：2007-01-03

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

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

IPC分类号： H04B7/00

CPC分类号： H04L1/0026 ,  H04B7/022 ,  H04B7/026 ,  H04B7/2606 ,  H04B17/318 ,  H04B17/382 ,  H04L1/0003 ,  H04L1/0006 ,  H04L1/0009 ,  H04L2001/0097 ,  H04W16/26 ,  H04W40/08

摘要： Provided are an apparatus and method for transmitting data using an Adaptive Modulation and Coding (AMC) scheme in a mobile communication system with a Relay Station (RS). A relay indicator value is received indicating a strength of a downlink signal transmitted to a destination through a relay path including the RS and a direct indicator value indicating a strength of an downlink signal directly transmitted to the destination via a direct path without passing through the RS. Modulation and Coding Scheme (MCS) levels are determined using the relay and direct indicator values for both the relay and direct paths. Bandwidth efficiencies are found in correspondence with the MCS levels and are compared depending on whether the relay path or the direct path is used. A path resulting in a higher bandwidth efficiency is selected to generate a data frame having a structure corresponding to the selected path. The data frame is transmitted to the destination or the RS.

摘要翻译： 提供了一种在具有中继站（RS）的移动通信系统中使用自适应调制和编码（AMC）方案发送数据的装置和方法。 接收到指示通过包括RS的中继路径发送到目的地的下行链路信号的强度的指示符值，以及指示经由直接路径直接发送到目的地的下行链路信号的强度的直接指示符值，而不经过RS 。 调制和编码方案（MCS）级别是使用中继和直接指示符值来确定的。 根据MCS级别发现带宽效率，并根据中继路径还是直接路径进行比较。 选择导致更高带宽效率的路径以生成具有与所选路径相对应的结构的数据帧。 数据帧发送到目的地或RS。

公开(公告)号：US20070141991A1

公开(公告)日：2007-06-21

申请号：US11640742

申请日：2006-12-18

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

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

IPC分类号： H04B1/00

CPC分类号： H04L1/1887 ,  H04L1/1607 ,  H04L2001/0097

摘要： Provided is an apparatus and method for performing an ARQ operation for a uplink (UL) signal in a multi-hop relay cellular network. Upon receipt of a UL signal from a mobile station (MS), it is determined if there is an error in the received UL signal. If there is an error in the received UL signal, the channel condition for a relay station (RS) is compared with the channel condition for the MS. If the channel condition for the RS is better than the channel condition for the MS, it is determined if the RS knows the erroneously received UL signal. If the RS knows the erroneously received UL signal, the RS is requested to retransmit the erroneously received UL signal.

摘要翻译： 提供了一种用于在多跳中继蜂窝网络中对上行链路（UL）信号执行ARQ操作的装置和方法。 在从移动台（MS）接收到UL信号时，确定接收的UL信号中是否存在错误。 如果在接收的UL信号中存在错误，则将中继站（RS）的信道条件与MS的信道条件进行比较。 如果RS的信道条件好于MS的信道条件，则确定RS是否知道错误接收的UL信号。 如果RS知道错误接收的UL信号，则请求RS重传错误接收的UL信号。

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。