公开(公告)号：US20060083160A1

公开(公告)日：2006-04-20

申请号：US11250276

申请日：2005-10-14

申请人： Jin-Kyu Koo ,  Seok-Hyun Yoon ,  Chang-Ho Suh ,  Jung-Min Ro ,  Dong-Seek Park ,  Young-Kwon Cho

发明人： Jin-Kyu Koo ,  Seok-Hyun Yoon ,  Chang-Ho Suh ,  Jung-Min Ro ,  Dong-Seek Park ,  Young-Kwon Cho

IPC分类号： H04J11/00

CPC分类号： H04L27/2657 ,  H04L7/08 ,  H04L7/10 ,  H04L27/0014 ,  H04L27/2613 ,  H04L27/2675 ,  H04L2027/003 ,  H04L2027/0048 ,  H04L2027/0067 ,  H04L2027/0093

摘要： An apparatus and method for estimating and correcting an uplink frequency offset in an OFDM communication system are provided. A subscriber station (SS) once repeats an OFDM symbol including a ranging code allocated from a BS and transmits the repeated OFDM symbols to the base station (BS). The BS demodulates the two successive OFDM symbols received from the SS using the ranging code, sums the demodulated signal for each FFT window, and estimates the uplink frequency offset by multiplying the complex conjugate of a sum for a first FFT window by a sum for a second FFT window by the base station. The BS transmits a message including information about the frequency offset estimate to the SS. The SS then corrects the uplink frequency offset using the frequency offset information.

摘要翻译： 提供了一种用于在OFDM通信系统中估计和校正上行频率偏移的装置和方法。 用户站（SS）一次重复包括从BS分配的测距码的OFDM符号，并将重复的OFDM符号发送到基站（BS）。 BS使用测距码解调从SS接收的两个连续的OFDM符号，将每个FFT窗口的解调信号相加，并且通过将第一FFT窗口的和的复共轭乘以一个 第二个FFT窗口由基站。 BS向SS发送包括关于频率偏移估计的信息的消息。 SS然后使用频率偏移信息校正上行链路频率偏移。

公开(公告)号：US20050286409A1

公开(公告)日：2005-12-29

申请号：US11165974

申请日：2005-06-24

申请人： Seok-Hyun Yoon ,  Jung-Min Ro ,  Jin-Kyu Koo ,  Su-Ryong Jeong ,  Dong-Seek Park ,  Young-Kwon Cho

发明人： Seok-Hyun Yoon ,  Jung-Min Ro ,  Jin-Kyu Koo ,  Su-Ryong Jeong ,  Dong-Seek Park ,  Young-Kwon Cho

IPC分类号： H04J11/00 ,  H04L5/02

CPC分类号： H04L5/023

摘要： An apparatus and method for transmitting/receiving an random access channel (RACH) signal in a broadband wireless communication system where a total uplink frequency band is divided into M sub-bands are provided. In the RACH transmitting apparatus, a generator generates an access code. A sub-carrier allocator divides the access code into M sub-blocks and allocates each of the M sub-blocks to successive sub-carriers in a sub-band. An inverse fast Fourier transform (IFFT) processor generates an orthogonal frequency division multiplexing (OFDM) symbol by performing an IFFT on the allocated sub-blocks.

摘要翻译： 提供了一种用于在将总上行链路频带划分为M个子带的宽带无线通信系统中发送/接收随机接入信道（RACH）信号的装置和方法。 在RACH发送装置中，发生器生成访问码。 子载波分配器将接入码分成M个子块，并将M个子块中的每一个分配给子带中的连续子载波。 逆快速傅里叶变换（IFFT）处理器通过对所分配的子块执行IFFT来产生正交频分复用（OFDM）符号。

公开(公告)号：US20060109924A1

公开(公告)日：2006-05-25

申请号：US11284321

申请日：2005-11-21

申请人： Jin-Kyu Koo ,  Chang-Ho Suh ,  Seung-Hoon Park ,  Young-Kyun Kim ,  Dong-Seek Park ,  Jung-Min Ro ,  Sung-Kwon Hong ,  Young-Kwon Cho

发明人： Jin-Kyu Koo ,  Chang-Ho Suh ,  Seung-Hoon Park ,  Young-Kyun Kim ,  Dong-Seek Park ,  Jung-Min Ro ,  Sung-Kwon Hong ,  Young-Kwon Cho

IPC分类号： H04K1/10

CPC分类号： H04L5/0048 ,  H04L5/0017 ,  H04L27/2605 ,  H04L27/2613

摘要： Disclosed is a system and method for modulating a pilot symbol sequence in a multi-carrier communication system. The method including producing a pilot symbol sequence corresponding to a predetermined time interval by removing a data symbol sequence from time domain signal to be transmitted, the time domain signal including the data symbol sequence and the pilot symbol sequence; and modulating the pilot symbol sequence so that a part of the time domain signal corresponding to a predetermined number of pilot symbols in the pilot symbol sequence has a predetermined pattern.

摘要翻译： 公开了一种用于在多载波通信系统中调制导频符号序列的系统和方法。 该方法包括通过从要发送的时域信号中去除数据符号序列来产生与预定时间间隔对应的导频符号序列，包括数据符号序列和导频符号序列的时域信号; 以及调制导频符号序列，使得与导频符号序列中的预定数量的导频符号相对应的时域信号的一部分具有预定的模式。

公开(公告)号：US20050068931A1

公开(公告)日：2005-03-31

申请号：US10955131

申请日：2004-09-30

申请人： Young-Kwon Cho ,  Jung-Min Ro ,  Hyeon-Woo Lee ,  Seok-Hyun Yoon ,  Dong-Seek Park ,  Chang-Ho Suh ,  Chan-Byoung Chae ,  Su-Ryong Jeong

发明人： Young-Kwon Cho ,  Jung-Min Ro ,  Hyeon-Woo Lee ,  Seok-Hyun Yoon ,  Dong-Seek Park ,  Chang-Ho Suh ,  Chan-Byoung Chae ,  Su-Ryong Jeong

IPC分类号： H04B7/204 ,  H04B1/707 ,  H04J1/00 ,  H04J11/00 ,  H04J13/16 ,  H04L5/02 ,  H04L27/26 ,  H04J3/00

CPC分类号： H04L5/026 ,  H04L27/261

摘要： An apparatus and method for transmitting a reference signal in an Orthogonal Frequency Division Multiple Access (OFDMA) communication system in which a total frequency band is divided into a plurality of subcarrier bands. A time division multiplexer performs time division multiplexing such that the reference signal is transmitted for a first duration in a predetermined number of subcarrier bands from among the plurality of the subcarrier bands, and a signal other than the reference signal is transmitted for a second duration other than the first duration. A transmitter transmits the time-division multiplexed subcarrier band signals.

摘要翻译： 一种在正交频分多址（OFDMA）通信系统中发送参考信号的装置和方法，其中总频带被划分成多个子载波频带。 时分复用器执行时分多路复用，使得参考信号在多个子载波频带之间的预定数量的子载波频带中被发送第一持续时间，并且除了参考信号之外的信号被传送第二持续时间 比第一个持续时间。 发射机发射时分复用的副载波频带信号。

公开(公告)号：US07460506B2

公开(公告)日：2008-12-02

申请号：US11141115

申请日：2005-05-31

申请人： Jung-Min Ro ,  Seung-Hoon Choi ,  Seok-Hyun Yoon ,  Chang-Ho Suh ,  Dong-Seek Park ,  Young-Kwon Cho

发明人： Jung-Min Ro ,  Seung-Hoon Choi ,  Seok-Hyun Yoon ,  Chang-Ho Suh ,  Dong-Seek Park ,  Young-Kwon Cho

IPC分类号： H04B7/216

CPC分类号： H04B1/7083

摘要： An apparatus and method for generating an octal code for identifying cells in a mobile communication system. In the octal code generating apparatus, a binary code generator generates a binary code with a predetermined minimum Hamming distance. A column permutator permutes the order of columns of the binary code in a predetermined interleaving method. A 3-bit combiner generates a plurality of codewords using the column-permuted binary code as a generator matrix and groups the bits of each of the codewords by threes. An octal code generator converts the 3-bit grouped binary codewords to octal code sequences.

摘要翻译： 一种用于在移动通信系统中生成用于识别小区的八进制码的装置和方法。 在八进制代码生成装置中，二进制代码生成器生成具有预定的最小汉明距离的二进制代码。 列排列器以预定的交织方法来排列二进制码列的顺序。 3位组合器使用列排列的二进制码作为生成器矩阵生成多个码字，并将每个码字的比特分组三分之一。 八进制代码生成器将3位分组的二进制码字转换为八进制码序列。

公开(公告)号：US07209460B2

公开(公告)日：2007-04-24

申请号：US11214312

申请日：2005-08-29

申请人： Frank Hanns Paul Fitzek ,  Carl Simon Wijting ,  Jeroen Theeuwes ,  Petar Popovski ,  Ramjee Prasad ,  Chang-Ho Suh ,  Seok-Hyun Yoon ,  Sung-Kwon Hong ,  Young-Kwon Cho ,  Young-Kyun Kim ,  Dong-Seek Park ,  Jung-Min Ro

发明人： Frank Hanns Paul Fitzek ,  Carl Simon Wijting ,  Jeroen Theeuwes ,  Petar Popovski ,  Ramjee Prasad ,  Chang-Ho Suh ,  Seok-Hyun Yoon ,  Sung-Kwon Hong ,  Young-Kwon Cho ,  Young-Kyun Kim ,  Dong-Seek Park ,  Jung-Min Ro

IPC分类号： H04Q7/20 ,  H04Q7/38

CPC分类号： H04W72/08 ,  H04W48/20 ,  H04W72/0453

摘要： A subcarrier assignment apparatus and a subcarrier assignment method, in which each of a plurality of Base Stations (BSs) constituting an Orthogonal Frequency Division Multiple Access (OFDMA) communication system provides services in the capacity of a serving BS to Mobile Stations (MSs). Channel quality information for the respective MSs are fed-back from the respective BSs. Subcarriers are assigned to the respective MSs according to a corresponding scheduling scheme in consideration of the channel quality information for the respective MSs, which are fed-back from the respective BSs, and then BSs which manage the subcarriers assigned to the respective MSs according to the corresponding scheduling scheme are selected. These operations provide site diversity to each of the MSs, and thus system capacity is maximized.

摘要翻译： 一种子载波分配装置和子载波分配方法，其中构成正交频分多址（OFDMA）通信系统的多个基站（BS）中的每个基站提供服务BS到移动台（MS）的能力的服务。 各个MS的信道质量信息从相应的BS反馈。 考虑到从各个BS反馈的各个MS的信道质量信息，根据相应的调度方案将子载波分配给相应的MS，然后根据相应的MS管理分配给各个MS的子载波的BS 选择相应的调度方案。 这些操作为每个MS提供站点分集，从而最大化系统容量。

公开(公告)号：US20050265293A1

公开(公告)日：2005-12-01

申请号：US11141115

申请日：2005-05-31

申请人： Jung-Min Ro ,  Seung-Hoon Choi ,  Seok-Hyun Yoon ,  Chang-Ho Suh ,  Dong-Seek Park ,  Young-Kwon Cho

发明人： Jung-Min Ro ,  Seung-Hoon Choi ,  Seok-Hyun Yoon ,  Chang-Ho Suh ,  Dong-Seek Park ,  Young-Kwon Cho

IPC分类号： H04L27/26 ,  H04B1/707 ,  H04B7/216

CPC分类号： H04B1/7083

摘要： An apparatus and method for generating an octal code for identifying cells in a mobile communication system. In the octal code generating apparatus, a binary code generator generates a binary code with a predetermined minimum Hamming distance. A column permutator permutes the order of columns of the binary code in a predetermined interleaving method. A 3-bit combiner generates a plurality of codewords using the column-permuted binary code as a generator matrix and groups the bits of each of the codewords by threes. An octal code generator converts the 3-bit grouped binary codewords to octal code sequences.

摘要翻译： 一种用于在移动通信系统中生成用于识别小区的八进制码的装置和方法。 在八进制代码生成装置中，二进制代码生成器生成具有预定的最小汉明距离的二进制代码。 列排列器以预定的交织方法来排列二进制码列的顺序。 3位组合器使用列排列的二进制码作为生成器矩阵生成多个码字，并将每个码字的比特分组三分之一。 八进制代码生成器将3位分组的二进制码字转换为八进制码序列。

公开(公告)号：US07567545B2

公开(公告)日：2009-07-28

申请号：US10955131

申请日：2004-09-30

申请人： Young-Kwon Cho ,  Jung-Min Ro ,  Hyeon-Woo Lee ,  Seok-Hyun Yoon ,  Dong-Seek Park ,  Chang-Ho Suh ,  Chan-Byoung Chae ,  Su-Ryong Jeong

发明人： Young-Kwon Cho ,  Jung-Min Ro ,  Hyeon-Woo Lee ,  Seok-Hyun Yoon ,  Dong-Seek Park ,  Chang-Ho Suh ,  Chan-Byoung Chae ,  Su-Ryong Jeong

IPC分类号： H04B7/208

CPC分类号： H04L5/026 ,  H04L27/261

摘要： An apparatus and method for transmitting a reference signal in an Orthogonal Frequency Division Multiple Access (OFDMA) communication system in which a total frequency band is divided into a plurality of subcarrier bands. A time division multiplexer performs time division multiplexing such that the reference signal is transmitted for a first duration in a predetermined number of subcarrier bands from among the plurality of the subcarrier bands, and a signal other than the reference signal is transmitted for a second duration other than the first duration. A transmitter transmits the time-division multiplexed subcarrier band signals.

摘要翻译： 一种在正交频分多址（OFDMA）通信系统中发送参考信号的装置和方法，其中总频带被划分成多个子载波频带。 时分复用器执行时分多路复用，使得参考信号在多个子载波频带之间的预定数量的子载波频带中被发送第一持续时间，并且除了参考信号之外的信号被传送第二持续时间 比第一个持续时间。 发射机发送时分复用的副载波频带信号。

公开(公告)号：US20060079240A1

公开(公告)日：2006-04-13

申请号：US11214312

申请日：2005-08-29

申请人： Frank Hanns Fitzek ,  Carl Wijting ,  Jeroen Theeuwes ,  Petar Popovski ,  Ramjee Prasad ,  Chang-Ho Suh ,  Seok-Hyun Yoon ,  Sung-Kwon Hong ,  Young-Kwon Cho ,  Young-Kyun Kim ,  Dong-Seek Park ,  Jung-Min Ro

发明人： Frank Hanns Fitzek ,  Carl Wijting ,  Jeroen Theeuwes ,  Petar Popovski ,  Ramjee Prasad ,  Chang-Ho Suh ,  Seok-Hyun Yoon ,  Sung-Kwon Hong ,  Young-Kwon Cho ,  Young-Kyun Kim ,  Dong-Seek Park ,  Jung-Min Ro

IPC分类号： H04Q7/20

CPC分类号： H04W72/08 ,  H04W48/20 ,  H04W72/0453

摘要： A subcarrier assignment apparatus and a subcarrier assignment method, in which each of a plurality of Base Stations (BSs) constituting an Orthogonal Frequency Division Multiple Access (OFDMA) communication system provides services in the capacity of a serving BS to Mobile Stations (MSs). Channel quality information for the respective MSs are fed-back from the respective BSs. Subcarriers are assigned to the respective MSs according to a corresponding scheduling scheme in consideration of the channel quality information for the respective MSs, which are fed-back from the respective BSs, and then BSs which manage the subcarriers assigned to the respective MSs according to the corresponding scheduling scheme are selected. These operations provide site diversity to each of the MSs, and thus system capacity is maximized.

摘要翻译： 一种子载波分配装置和子载波分配方法，其中构成正交频分多址（OFDMA）通信系统的多个基站（BS）中的每个基站提供服务BS到移动台（MS）的能力的服务。 各个MS的信道质量信息从相应的BS反馈。 考虑到从各个BS反馈的各个MS的信道质量信息，根据相应的调度方案将子载波分配给相应的MS，然后根据相应的MS管理分配给各个MS的子载波的BS 选择相应的调度方案。 这些操作为每个MS提供站点分集，从而最大化系统容量。

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。