公开(公告)号：US07411894B2

公开(公告)日：2008-08-12

申请号：US10666514

申请日：2003-09-18

申请人： Jung-Min Ro ,  Jingyl Liao ,  Hai Wang ,  Yongchun Chen ,  Fengming Cao ,  Pan-Yuh Joo ,  Dong-Seek Park

发明人： Jung-Min Ro ,  Jingyl Liao ,  Hai Wang ,  Yongchun Chen ,  Fengming Cao ,  Pan-Yuh Joo ,  Dong-Seek Park

IPC分类号： H04J11/00 ,  H04J3/00 ,  H04J1/00

CPC分类号： H04L27/2607

摘要： A transceiver system and method in an OFDM communication system which enables exact symbol synchronization acquisition and improves performance for frequency offset and channel estimation. In the apparatus, a guard interval filling unit copies data at a predetermined interval in an input data row inputted to be transmitted, and fills in the copied data in the preset guard interval in the input data row. A selection unit selectively receives an output data row outputted from the guard interval filling means and unique words having a constant amplitude and a non-periodic auto-correlation characteristic, and outputs the OFDM symbol in which the unique words are inserted in the output data row.

摘要翻译： OFDM通信系统中的收发机系统和方法，其能够精确地进行符号同步采集并提高频偏和信道估计的性能。 在该装置中，保护间隔填充单元以预定的时间间隔复制输入的要输出的输入数据列中的数据，并在输入数据行中以预设的保护间隔填充复制的数据。 选择单元选择性地接收从保护间隔填充装置输出的输出数据行和具有恒定幅度和非周期性自相关特性的唯一字，并将其中插入有唯一字的OFDM符号输出到输出数据行 。

公开(公告)号：US07664192B2

公开(公告)日：2010-02-16

申请号：US11247787

申请日：2005-10-11

申请人： Sung-Ryul Yun ,  Chan-Byoung Chae ,  Hong-Sil Jeong ,  Dong-Seek Park ,  Won-Il Roh ,  Jae-Yoel Kim ,  Pan-Yuh Joo ,  Jeong-Tae Oh ,  Kyun-Byoung Ko

发明人： Sung-Ryul Yun ,  Chan-Byoung Chae ,  Hong-Sil Jeong ,  Dong-Seek Park ,  Won-Il Roh ,  Jae-Yoel Kim ,  Pan-Yuh Joo ,  Jeong-Tae Oh ,  Kyun-Byoung Ko

IPC分类号： H04B7/02

CPC分类号： H04B7/068 ,  H04B7/0848 ,  H04B7/0854 ,  H04L1/0606 ,  H04L1/0668 ,  H04L27/2615 ,  H04L27/2628 ,  H04L27/265

摘要： A transmitter for minimizing a PAPR in OFDM communication system. The transmitter includes: a precoder for coding input symbols so that a signal rotation is generated, and generating a complex vector including the coded symbols; an encoder for performing a frequency-space mapping for the symbols generated as the complex vector according to a predetermined scheme; a random mapper for randomly mapping the symbols for which the frequency-space mapping has been performed on a frequency plane through at least one transmit antenna; an Inverse Fast Fourier Transform (IFFT) unit for performing an IFFT for the symbols for which the frequency-space mapping has been performed; and a gradient algorithm unit for receiving IFFTed signals from the IFFT unit and reducing the PAPR.

摘要翻译： 用于最小化OFDM通信系统中的PAPR的发射机。 发射机包括：预编码器，用于对输入符号进行编码，从而产生信号旋转，并产生包括编码符号的复矢量; 编码器，用于根据预定方案对作为所述复矢量生成的符号执行频率 - 空间映射; 随机映射器，用于通过至少一个发射天线在频率平面上随机映射已经对其进行频率 - 空间映射的符号; 用于对已经执行了频率 - 空间映射的符号执行IFFT的逆快速傅里叶变换（IFFT）单元; 以及用于从IFFT单元接收IFFT信号并减少PAPR的梯度算法单元。

公开(公告)号：US07583586B2

公开(公告)日：2009-09-01

申请号：US11167663

申请日：2005-06-27

申请人： Sung-Eun Park ,  Seung-Hoon Choi ,  Dong-Seek Park ,  Jae-Yoel Kim ,  Ji-Ho Jang ,  Pan-Yuh Joo

发明人： Sung-Eun Park ,  Seung-Hoon Choi ,  Dong-Seek Park ,  Jae-Yoel Kim ,  Ji-Ho Jang ,  Pan-Yuh Joo

IPC分类号： H04J11/00

CPC分类号： H04L5/0048 ,  H04B2201/70701 ,  H04B2201/709709 ,  H04J13/0048 ,  H04J13/16 ,  H04L5/0023 ,  H04L27/2613 ,  H04L27/262 ,  H04L27/2655

摘要： Disclosed is a method for transmitting a reference signal for identification of each cell in a communication system including a plurality of cells each of which is identified by a cell identifier. The method includes receiving a cell identifier, and generating a block code corresponding to the cell identifier using a predetermined block code generator matrix, and generating a first part sequence using the block code; selecting a second part sequence in accordance with the cell identifier; generating a reference signal of a frequency domain using the first part sequence and the second part sequence; converting the reference signal of the frequency domain to a reference signal of a time domain through an Inverse Fast Fourier Transform operation and transmitting the reference signal of the time domain in a predetermined reference signal transmission interval.

摘要翻译： 公开了一种在通信系统中发送用于识别每个小区的参考信号的方法，该通信系统包括多个小区，每个小区由小区标识符标识。 该方法包括接收小区标识符，并使用预定的块码发生器矩阵生成与该小区标识符相对应的块码，并使用块码生成第一部分序列; 根据小区标识符选择第二部分序列; 使用所述第一部分序列和所述第二部分序列生成频域的参考信号; 通过反傅立叶逆变换操作将频域的参考信号转换为时域的参考信号，并以预定的参考信号传输间隔发射时域的参考信号。

公开(公告)号：US20060018251A1

公开(公告)日：2006-01-26

申请号：US11165719

申请日：2005-06-24

申请人： Sung-Eun Park ,  Seung-Hoon Choi ,  Dong-Seek Park ,  Jae-Yoel Kim ,  Ji-Ho Jang ,  Pan-Yuh Joo

发明人： Sung-Eun Park ,  Seung-Hoon Choi ,  Dong-Seek Park ,  Jae-Yoel Kim ,  Ji-Ho Jang ,  Pan-Yuh Joo

IPC分类号： H04J11/00

CPC分类号： H04L27/262 ,  H04L27/2613

摘要： Disclosed is a method for providing a pilot symbol for base station identification in a Multiple-Input Multiple-Output (MIMO) communication system having one or more transmission antennas, wherein the pilot symbol is comprised of a first sequence having a good cell identification characteristic and a second sequence for reducing a peak-to-average power ratio (PAPR) for all of pilot symbols.

公开(公告)号：US07516391B2

公开(公告)日：2009-04-07

申请号：US11116869

申请日：2005-04-28

申请人： Gyu-Bum Kyung ,  Se-Ho Myung ,  Kyeong-Cheol Yang ,  Hyun-Koo Yang ,  Dong-Seek Park ,  Jae-Yoel Kim ,  Sung-Eun Park ,  Seung-Hoon Choi ,  Pan-Yuh Joo ,  Hong-Sil Jeong

发明人： Gyu-Bum Kyung ,  Se-Ho Myung ,  Kyeong-Cheol Yang ,  Hyun-Koo Yang ,  Dong-Seek Park ,  Jae-Yoel Kim ,  Sung-Eun Park ,  Seung-Hoon Choi ,  Pan-Yuh Joo ,  Hong-Sil Jeong

IPC分类号： H03M13/00

CPC分类号： H03M13/116 ,  H03M13/1134 ,  H03M13/118 ,  H03M13/1185 ,  H03M13/1188 ,  H03M13/1194 ,  H03M13/6362

摘要： Disclosed is a device and procedure for coding a block low density parity check (LDPC) code having a variable length. The a device and procedure includes receiving an information word; and coding the information word into a block LDPC code according to a first parity check matrix or a second parity check matrix depending on a length to be applied when generating the information word into the block LDPC code.

摘要翻译： 公开了一种用于编码具有可变长度的块低密度奇偶校验（LDPC）码的装置和过程。 一种设备和过程包括接收信息字; 根据第一奇偶校验矩阵或第二奇偶校验矩阵，将该信息字编码为块LDPC码，这取决于在将信息字生成到块LDPC码时要施加的长度。

公开(公告)号：US07372910B2

公开(公告)日：2008-05-13

申请号：US10868410

申请日：2004-06-15

申请人： Chang-Ho Suh ,  Pan-Yuh Joo ,  Dong-Seek Park ,  Young-Kwon Cho

发明人： Chang-Ho Suh ,  Pan-Yuh Joo ,  Dong-Seek Park ,  Young-Kwon Cho

IPC分类号： H04K1/10

CPC分类号： H04J13/0014 ,  H04J11/003 ,  H04J13/107 ,  H04L5/0007 ,  H04L5/0048 ,  H04L25/0226 ,  H04L27/2605 ,  H04L27/2613 ,  H04L27/262 ,  H04L27/2657 ,  H04L27/2662

摘要： An apparatus for generating a preamble sequence in an orthogonal frequency division multiplexing (OFDM) communication system using A subcarriers in a frequency domain. A preamble sequence generator generates a length−M+N+k preamble sequence, where M+N+k is less than A, by combining a length−N Golay complementary sequence with a length−M Golay complementary sequence. An inverse fast Fourier transform (IFFT) processor assigns elements constituting the preamble sequence to the M+N+k subcarriers among the A subcarriers on a one-to-one mapping basis, assigns null data to remaining subcarriers excluding the M+N+k subcarriers from the A subcarriers, and then IFFT-transforms the assigned result into time-domain data.

摘要翻译： 一种用于在频域中使用A个子载波的正交频分复用（OFDM）通信系统中生成前置码序列的装置。 前导码序列生成器通过将长度-GGayay互补序列与长度-M Gayay互补序列组合来生成长度M + N + k个前导序列，其中M + N + k小于A。 逆快速傅里叶变换（IFFT）处理器在一对一映射基础上将构成前导序列的元素分配给A个子载波中的M + N + k个子载波，将零数据分配给除M + N + k之外的剩余子载波 子载波，然后IFFT将分配的结果转换成时域数据。

公开(公告)号：US20070275657A1

公开(公告)日：2007-11-29

申请号：US11807737

申请日：2007-05-29

申请人： Young-Bin Chang ,  Jae-Weon Cho ,  Eun-Taek Lim ,  Sung-Jin Lee ,  Mi-Hyun Lee ,  Hyun-Jeong Kang ,  Chang-Yoon Oh ,  Cheng Shan ,  Dong-Seek Park ,  Pan-Yuh Joo ,  Joon-Young Choi ,  Jae-Hyuk Jang

发明人： Young-Bin Chang ,  Jae-Weon Cho ,  Eun-Taek Lim ,  Sung-Jin Lee ,  Mi-Hyun Lee ,  Hyun-Jeong Kang ,  Chang-Yoon Oh ,  Cheng Shan ,  Dong-Seek Park ,  Pan-Yuh Joo ,  Joon-Young Choi ,  Jae-Hyuk Jang

IPC分类号： H04B17/02

CPC分类号： H04L1/1887 ,  H04L1/1614 ,  H04L1/1854 ,  H04L2001/0097

摘要： An apparatus and method for performing Automatic Retransmission reQuest (ARQ) of a Relay Station (RS) in a wireless communication system using a relay scheme are provided. The method includes receiving data from a transmitter and transmitting the received data to one or more receivers; and receiving Acknowledgment (ACK)/Negative-Acknowledgment (NACK) information for the data received from the one or more receivers and transmitting the received ACK/NACK information to a Base Station (BS).

摘要翻译： 提供一种用于在使用中继方案的无线通信系统中执行中继站（RS）的自动重传请求（ARQ）的装置和方法。 该方法包括从发射机接收数据并将接收到的数据发射到一个或多个接收机; 以及从一个或多个接收机接收的数据接收确认（ACK）/否定确认（NACK）信息，并将接收到的ACK / NACK信息发送到基站（BS）。

公开(公告)号：US20070275656A1

公开(公告)日：2007-11-29

申请号：US11807685

申请日：2007-05-29

申请人： Young-Bin Chang ,  Jae-Weon Cho ,  Eun-Taek Lim ,  Sung-Jin Lee ,  Mi-Hyun Lee ,  Hyun-Jeong Kang ,  Chang-Yoon Oh ,  Cheng Shan ,  Dong-Seek Park ,  Pan-Yuh Joo ,  Joon-Young Choi ,  Jae-Hyuk Jang

发明人： Young-Bin Chang ,  Jae-Weon Cho ,  Eun-Taek Lim ,  Sung-Jin Lee ,  Mi-Hyun Lee ,  Hyun-Jeong Kang ,  Chang-Yoon Oh ,  Cheng Shan ,  Dong-Seek Park ,  Pan-Yuh Joo ,  Joon-Young Choi ,  Jae-Hyuk Jang

IPC分类号： H04B17/02

CPC分类号： H04L1/08 ,  H04L1/18

摘要： Apparatus and method for performing Automatic Retransmission reQuest (ARQ) in a wireless relay communication system are provided, which include performing ARQ with the base station (BS), transmitting data successfully received from the BS to mobile station (MS), and retransmitting corresponding data to the MS when a retransmission indication message is received from the BS. Since the relay station (RS) relays only the errorless data to the receiver, the reliability of the data received at the receiver can be enhanced. The load on the RS can be reduced because the transmitter controls the ARQ.

摘要翻译： 提供了一种用于在无线中继通信系统中执行自动重传请求（ARQ）的装置和方法，其包括与基站（BS）执行ARQ，将从BS成功接收的数据发送到移动台（MS），以及重传对应的数据 当从BS接收到重传指示消息时，发送给MS。 由于中继站（RS）仅将无错误数据中继到接收机，所以可以提高在接收机处接收到的数据的可靠性。 由于变送器控制ARQ，RS上的负载可能会降低。

公开(公告)号：US20060039495A1

公开(公告)日：2006-02-23

申请号：US11205252

申请日：2005-08-16

申请人： Chan-Byoung Chae ,  Sung-Ryul Yun ,  Hong-Sil Jeong ,  Won-Il Roh ,  Dong-Seek Park ,  Pan-Yuh Joo ,  Jeong-Tae Oh ,  Kyun-Byoung Ko

发明人： Chan-Byoung Chae ,  Sung-Ryul Yun ,  Hong-Sil Jeong ,  Won-Il Roh ,  Dong-Seek Park ,  Pan-Yuh Joo ,  Jeong-Tae Oh ,  Kyun-Byoung Ko

IPC分类号： H04K1/10 ,  H04L1/02

CPC分类号： H04L1/0071 ,  H04L1/0625 ,  H04L1/0637

摘要： A space-time block coding apparatus and method in a transmitter with four transmit antennas in a system using a space-time block coding scheme, a pre-coder pre-codes an input symbol sequence by multiplying the input symbol sequence by ejθ, θ being a phase rotation angle, in case of QPSK in range of 0≦θ≦90, 23.5≦θ≦24.5, or 65.5≦θ≦66.5, in case of 16QAM in range of 0≦θ≦90, 15.5≦θ≦17.5 or 72.5≦θ≦74.5, the pre-coded symbol sequence being reconstructed to have real and imaginary parts. A mapper generates symbol vectors by recombining the real and imaginary parts of the pre-coded symbol sequence in an interleaving scheme. A plurality of Alamouti coders encodes the symbol vectors in an Alamouti scheme and transmits the encoded symbol vectors through corresponding transmit antennas.

摘要翻译： 在使用空时块编码方案的系统中，在具有四个发射天线的发射机中的时空块编码装置和方法，预编码器通过将输入符号序列乘以e ^{来对输入符号序列进行预编码， 在QPSK范围为0 <=θ<= 90，23.5 <=θ= 24.5或65.5 <=θ= 66.5的情况下，θ为相位旋转角度，在16QAM的情况下 范围为0 <=θ<= 90，15.5 <=θ= 17.5或72.5 <=θ= 74.5，所述预编码符号序列被重建为具有实部和虚部。 映射器通过在交织方案中重新组合预编码符号序列的实部和虚部来生成符号向量。 多个Alamouti编码器以Alamouti方案对符号向量进行编码，并通过对应的发送天线发送编码的符号向量。}

公开(公告)号：US07953365B2

公开(公告)日：2011-05-31

申请号：US12035701

申请日：2008-02-22

申请人： Eun-Taek Lim ,  Young-Bin Chang ,  Il-Hwan Kim ,  Chung-Gu Kang ,  Dong-Seek Park ,  Pan-Yuh Joo ,  Chang-Yoon Oh

发明人： Eun-Taek Lim ,  Young-Bin Chang ,  Il-Hwan Kim ,  Chung-Gu Kang ,  Dong-Seek Park ,  Pan-Yuh Joo ,  Chang-Yoon Oh

IPC分类号： H04B7/15

CPC分类号： H04W28/18 ,  H04B7/15557 ,  H04B7/15592 ,  H04B7/2606 ,  H04L1/0003 ,  H04L1/0015 ,  H04L2001/0097 ,  H04W16/26

摘要： An apparatus and a method for selecting one of a plurality of relay modes in a wireless communication system are provided. The method includes checking a channel state between a Mobile Station (MS) and each of at least one Relay Station (RS), selecting the relay mode for supporting a relay service using the determined channel state between the MA and each of the at least one RS, and providing the relay service to the MS using the selected relay mode. Thus, system throughput and outage performance can be enhanced by using the appropriate relay mode based on the MS distribution or the channel condition.

摘要翻译： 提供了一种在无线通信系统中选择多个中继模式之一的装置和方法。 该方法包括：检查移动站（MS）和至少一个中继站（RS）中的每一个之间的信道状态，使用所确定的信道状态来选择用于支持中继业务的中继模式，所述信道状态在所述MA与所述至少一个 RS，并且使用所选择的中继模式向MS提供中继服务。 因此，可以通过使用基于MS分布或信道条件的适当的中继模式来增强系统吞吐量和中断性能。