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1.发明申请Apparatus and method for performance improvement of channel estimation in broadband wireless access communication system 审中-公开宽带无线接入通信系统信道估计性能改善的装置及方法公开(公告)号：US20060251037A1
公开(公告)日：2006-11-09
申请号：US11374731
申请日：2006-03-14
申请人： Jin-Kyu Koo , Seok-Hyun Yoon , Su-Ryong Jeong , Dong-Seek Park , Young-Kwon Cho , Sung-Kwon Hong
发明人： Jin-Kyu Koo , Seok-Hyun Yoon , Su-Ryong Jeong , Dong-Seek Park , Young-Kwon Cho , Sung-Kwon Hong
IPC分类号： H04B7/216
CPC分类号： H04B7/2621
摘要： Disclosed are a pilot tone generation apparatus and a pilot tone generation method for improving channel estimation performance in an OFDMA/CDM communication system. In a pilot tone generation method for channel estimation in a broadband wireless access communication system, if given data symbols and a pilot symbol are input, the input data symbols are code-division multiplexed. A pilot symbol value for generating a sub-carrier of a specific position into the pilot tone is produced and spread, correspondingly to a code-division multiplexed result value of the data symbols Also, a spreading value for the pilot symbol value and the resulting code-division multiplexed value of the data symbols are added up, and the pilot tone is generated at a given position on a frequency axis, which position is predetermined through a result of the adding up.
摘要翻译： 公开了一种用于改善OFDMA / CDM通信系统中的信道估计性能的导频音产生装置和导频音产生方法。 在宽带无线接入通信系统中用于信道估计的导频音生成方法中，如果输入给定数据符号和导频符号，则输入数据符号被码分多路复用。 对应于数据符号的码分多路复用结果值，产生并扩展用于产生特定位置的导频音的子载波的导频符号值。另外，导频符号值的扩展值和结果代码 将数据符号的分解复用值相加，并且在频率轴上的给定位置处生成导频音，该位置通过相加的结果被预先确定。
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2.发明申请Apparatus and method for transmitting/receiving uplink random access channel in mobile communication system 审中-公开用于在移动通信系统中发送/接收上行随机接入信道的装置和方法公开(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
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。
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公开(公告)号：US20070053465A1
公开(公告)日：2007-03-08
申请号：US11515598
申请日：2006-09-05
申请人： Jin-Kyu Koo , Young-Kwon Cho , Chang-Yoon Oh , Su-Ryong Jeong , Tae-Young Kim , Dong-Seek Park , Jun-Young Jung , Joon-Young Choi , Eun-Taek Lim , Chang-Ho Suh , Jae-Hyuk Jang
发明人： Jin-Kyu Koo , Young-Kwon Cho , Chang-Yoon Oh , Su-Ryong Jeong , Tae-Young Kim , Dong-Seek Park , Jun-Young Jung , Joon-Young Choi , Eun-Taek Lim , Chang-Ho Suh , Jae-Hyuk Jang
IPC分类号： H04L27/12
CPC分类号： H04L27/2613 , H04L27/2655 , H04L27/2662 , H04W28/18
摘要： A ranging apparatus in a communication system is provided. A terminal generates a ranging code for ranging with a base station, maps the ranging code to at least one sub-carrier so the ranging code is repeated in a time domain, generates a ranging signal so the mapped ranging code has a size of one symbol interval, and transmits the generated ranging signal to the base station. The base station receives a ranging signal, extracts a half signal of a valid symbol interval of the ranging signal, generates a valid symbol interval signal by repeating the extracted half signal of the valid symbol interval, restores a ranging signal using the valid symbol interval signal, and performs ranging using the ranging signal.
摘要翻译： 提供了一种通信系统中的测距装置。 终端生成用于与基站进行测距的测距码，将测距码映射到至少一个子载波，使得测距码在时域中重复，生成测距信号，使得映射的测距码具有一个符号的大小 间隔，并将生成的测距信号发送到基站。 基站接收测距信号，提取测距信号的有效符号间隔的半信号，通过重复提取的有效符号间隔的半个信号来生成有效的符号间隔信号，使用有效符号间隔信号恢复测距信号 ，并使用测距信号进行测距。
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4.发明申请Apparatus and method for estimating uplink frequency offset in wireless communication system 有权用于估计无线通信系统中的上行频率偏移的装置和方法公开(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
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。
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公开(公告)号：US08059525B2
公开(公告)日：2011-11-15
申请号：US11515598
申请日：2006-09-05
申请人： Jin-Kyu Koo , Young-Kwon Cho , Chang-Yoon Oh , Su-Ryong Jeong , Tae-Young Kim , Dong-Seek Park , Jun-Young Jung , Joon-Young Choi , Eun-Taek Lim , Chang-Ho Suh , Jae-Hyuk Jang
发明人： Jin-Kyu Koo , Young-Kwon Cho , Chang-Yoon Oh , Su-Ryong Jeong , Tae-Young Kim , Dong-Seek Park , Jun-Young Jung , Joon-Young Choi , Eun-Taek Lim , Chang-Ho Suh , Jae-Hyuk Jang
CPC分类号： H04L27/2613 , H04L27/2655 , H04L27/2662 , H04W28/18
摘要： A ranging apparatus in a communication system is provided. A terminal generates a ranging code for ranging with a base station, maps the ranging code to at least one sub-carrier so the ranging code is repeated in a time domain, generates a ranging signal so the mapped ranging code has a size of one symbol interval, and transmits the generated ranging signal to the base station. The base station receives a ranging signal, extracts a half signal of a valid symbol interval of the ranging signal, generates a valid symbol interval signal by repeating the extracted half signal of the valid symbol interval, restores a ranging signal using the valid symbol interval signal, and performs ranging using the ranging signal.
摘要翻译： 提供了一种通信系统中的测距装置。 终端生成用于与基站进行测距的测距码，将测距码映射到至少一个子载波，使得测距码在时域中重复，生成测距信号，使得映射的测距码具有一个符号的大小 间隔，并将生成的测距信号发送到基站。 基站接收测距信号，提取测距信号的有效符号间隔的半信号，通过重复提取的有效符号间隔的半个信号来生成有效的符号间隔信号，使用有效符号间隔信号恢复测距信号 ，并使用测距信号进行测距。
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6.发明授权Apparatus and method for estimating uplink frequency offset in wireless communication system 有权用于估计无线通信系统中的上行频率偏移的装置和方法公开(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。
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7.发明申请公开(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
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。
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8.发明授权公开(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。
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9.发明申请Transmitting/receiving apparatus and method in a mobile communication system 审中-公开移动通信系统中的发送/接收装置和方法公开(公告)号：US20070002969A1
公开(公告)日：2007-01-04
申请号：US11450495
申请日：2006-06-09
申请人： Su-Ryong Jeong , Sung-Kwon Hong , Young-Kwon Cho , Jung-Min Ro , Young-Kyun Kim , Dong-Seek Park
发明人： Su-Ryong Jeong , Sung-Kwon Hong , Young-Kwon Cho , Jung-Min Ro , Young-Kyun Kim , Dong-Seek Park
CPC分类号： H04L27/3405 , H04L1/0041 , H04L1/0045 , H04L1/0071 , H04L1/1812
摘要： A transmitting/receiving apparatus and method in a mobile communication system are provided. In a transmitter, an encoder encodes input information data and outputs systematic bits on a first channel and redundancy bits on a second channel. A first channel interleaver interleaves the systematic bits and a second channel interleaver interleaves the redundancy bits. A modulator maps one channel data of I and Q channel data, received from the first channel interleaver and another channel data of the I and Q channel data, received from the second channel interleaver to a modulation symbol using different mapping rules for I and Q channels.
摘要翻译： 提供了一种移动通信系统中的发送/接收装置和方法。 在发射机中，编码器对输入信息数据进行编码并在第一信道上输出系统比特，并在第二信道上输出冗余比特。 第一信道交织器交织系统比特，并且第二信道交织器交织冗余比特。 调制器将从第一信道交织器接收的I信道数据和Q信道数据的一个信道数据和从第二信道交织器接收的I和Q信道数据的另一个信道数据映射到使用针对I和Q信道的不同映射规则的调制符号 。
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10.发明申请Cell search apparatus and method in a mobile communication system using multiple access scheme 审中-公开移动通信系统中的小区搜索装置和方法，使用多址方案公开(公告)号：US20060126491A1
公开(公告)日：2006-06-15
申请号：US11231255
申请日：2005-09-20
申请人： Jung-Min Ro , Young-Kwon Cho , Sung-Kwon Hong , Su-Ryong Jeong , Young-Kyun Kim , Dong-Seek Park
发明人： Jung-Min Ro , Young-Kwon Cho , Sung-Kwon Hong , Su-Ryong Jeong , Young-Kyun Kim , Dong-Seek Park
IPC分类号： H04J11/00
CPC分类号： H04L27/2647 , H04L27/261 , H04L27/2655
摘要： A cell search apparatus and method in an OFDM mobile communication system are provided. In the cell search apparatus, a symbol synchronization acquirer acquires OFDM symbol synchronization by performing CP correlation for a plurality of OFDM symbol intervals. A frame cell synchronization acquirer sorts received OFDM symbols according to the acquired OFDM symbol synchronization, and acquires frame cell synchronization by performing preamble correlation for a plurality of frame cell intervals. A pilot pattern detector sorts received frame cells according to the acquired frame cell synchronization, and detects a pilot pattern for identifying a base station by monitoring a plurality of frame cells.
摘要翻译： 提供了一种OFDM移动通信系统中的小区搜索装置和方法。 在小区搜索装置中，符号同步获取器通过对多个OFDM符号间隔执行CP相关来获取OFDM符号同步。 帧单元同步获取器根据获取的OFDM符号同步对接收到的OFDM符号进行分类，并且通过对多个帧单元间隔执行前导码相关来获取帧单元同步。 导频模式检测器根据所获取的帧单元同步对接收到的帧单元进行分类，并且通过监视多个帧单元来检测用于识别基站的导频模式。
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