公开(公告)号：US07289588B2

公开(公告)日：2007-10-30

申请号：US10726096

申请日：2003-12-02

申请人： Chang-Ho Suh ,  Chan-Byoung Chae ,  Ho-Kyu Choi ,  Jung-Min Ro ,  Pan-Yuh Joo

发明人： Chang-Ho Suh ,  Chan-Byoung Chae ,  Ho-Kyu Choi ,  Jung-Min Ro ,  Pan-Yuh Joo

IPC分类号： H04L7/00

CPC分类号： H04L27/2613 ,  H04L27/2607 ,  H04L27/2614 ,  H04L27/2656 ,  H04L27/2657 ,  H04L2027/0095

摘要： A method for generating a preamble sequence in an orthogonal frequency division multiplexing (OFDM) communication system having A subcarriers in a frequency domain. The method comprises generating a length -M×N preamble sequence, where M×N is less than A, by using a length-N Golay complementary sequence and a length-M Golay complementary sequence; and assigning elements constituting the preamble sequence to M×N subcarriers among the A subcarriers on a one-to-one mapping basis, assigning null data to the remaining subcarriers excluding the M×N subcarriers from the A subcarriers, and then IFFT-transforming the assigned result into time-domain data.

摘要翻译： 一种用于在频域中具有A个子载波的正交频分复用（OFDM）通信系统中产生前同步码序列的方法。 该方法包括通过使用长度-GGayay互补序列和长度M Gayay互补序列来生成MxN小于A的长度-MxN前导码序列; 并且在一对一映射的基础上，将构成前同步码序列的元素分配给A个子载波中的M×N个子载波，将空数据分配给来自A个子载波的除了M×N个子载波之外的剩余子载波，然后将分配结果IFFT变换为时间 域数据。

公开(公告)号：US07366090B2

公开(公告)日：2008-04-29

申请号：US10819502

申请日：2004-04-07

申请人： Chang-Ho Suh ,  Chan-Byoung Chae ,  Ho-Kyu Choi ,  Jung-Min Ro ,  Pan-Yuh Joo

发明人： Chang-Ho Suh ,  Chan-Byoung Chae ,  Ho-Kyu Choi ,  Jung-Min Ro ,  Pan-Yuh Joo

IPC分类号： H04J11/00

CPC分类号： H04L27/2613

摘要： A method for generating a preamble sequence in an orthogonal frequency division multiplexing (OFDM) communication system having A subcarriers in a frequency domain. The method comprises generating a length-2×M×N preamble sequence, where 2×M×N is less than A, by using a length-N Golay complementary sequence and a length-M Golay complementary sequence; and assigning elements constituting the preamble sequence to 2×M×N subcarriers among the A subcarriers on a one-to-one mapping basis, assigning null data to the remaining subcarriers excluding the 2×M×N subcarriers from the A subcarriers, and then IFFT-transforming the assigned result into time-domain data.

摘要翻译： 一种用于在频域中具有A个子载波的正交频分复用（OFDM）通信系统中产生前同步码序列的方法。 该方法包括通过使用长度-GGayay互补序列和长度-MGolay互补序列来生成2xMxN小于A的长度为2xMxN的前导码序列; 并且在一对一映射的基础上，将构成前同步码序列的元素分配给A×A×N×N个子载波中的2×M×N个子载波，从空载子载波分配空余数据到除了2×M×N个子载波以外的剩余子载波，然后将分配结果IFFT变换为时间 域数据。

公开(公告)号：US20050020313A1

公开(公告)日：2005-01-27

申请号：US10899400

申请日：2004-07-26

申请人： Chan-Byoung Chae ,  Chang-Ho Suh ,  Byoung-Yun Kim ,  Katz Daniel ,  Pan-Yuh Joo

发明人： Chan-Byoung Chae ,  Chang-Ho Suh ,  Byoung-Yun Kim ,  Katz Daniel ,  Pan-Yuh Joo

IPC分类号： H04B7/02 ,  H04B1/707 ,  H04B7/06 ,  H04B7/08 ,  H04B7/10 ,  H04J11/00 ,  H04J13/00 ,  H04J99/00 ,  H04W16/28 ,  H04W28/06 ,  H04W28/18 ,  H04B1/38 ,  H04M1/00

CPC分类号： H04B7/0634 ,  H04B7/0617 ,  H04B7/0854

摘要： A method for transmitting and receiving weight information for creating transmission/reception beams in a mobile communication system using a multiple input multiple output adaptive antenna array scheme. The method includes a receiver receiving a predetermined signal, and differentially providing weights to a first scheme and a second scheme for minimizing an error between the received signal and a predetermined reference signal, thereby obtaining a minimum error value. The receiver generates a despread signal by despreading the received signal, produces a reception weight for creation of a reception beam by the receiver through calculation using the despread signal and the minimum error value, and produces a transmission weight for creation of a transmission beam by a counterpart transmitter through calculation using the reception weight and the minimum error value. The receiver generates predetermined feedback information including the transmission weight and a transmitter transmits the feedback information to a counterpart receiver.

摘要翻译： 一种用于在使用多输入多输出自适应天线阵列方案的移动通信系统中发送和接收用于创建发送/接收波束的加权信息的方法。 该方法包括接收预定信号的接收机，并且差分地提供第一方案的权重和用于最小化接收信号与预定参考信号之间的误差的第二方案，由此获得最小误差值。 接收机通过解扩接收的信号来产生解扩信号，通过使用去扩展信号和最小误差值的计算产生接收机通过接收机产生接收波束的接收权重，并产生用于通过 通过使用接收权重和最小误差值计算对方发射机。 接收机产生包括传输权重的预定反馈信息，并且发射机将反馈信息发送到对方接收机。

公开(公告)号：US07499728B2

公开(公告)日：2009-03-03

申请号：US10899400

申请日：2004-07-26

申请人： Chan-Byoung Chae ,  Chang-Ho Suh ,  Byoung-Yun Kim ,  Katz Marcos Daniel ,  Pan-Yuh Joo

发明人： Chan-Byoung Chae ,  Chang-Ho Suh ,  Byoung-Yun Kim ,  Katz Marcos Daniel ,  Pan-Yuh Joo

IPC分类号： H04M1/00

CPC分类号： H04B7/0634 ,  H04B7/0617 ,  H04B7/0854

摘要： A method for transmitting and receiving weight information for creating transmission/reception beams in a mobile communication system using a multiple input multiple output adaptive antenna array scheme. The method includes a receiver receiving a predetermined signal, and differentially providing weights to a first scheme and a second scheme for minimizing an error between the received signal and a predetermined reference signal, thereby obtaining a minimum error value. The receiver generates a despread signal by despreading the received signal, produces a reception weight for creation of a reception beam by the receiver through calculation using the despread signal and the minimum error value, and produces a transmission weight for creation of a transmission beam by a counterpart transmitter through calculation using the reception weight and the minimum error value. The receiver generates predetermined feedback information including the transmission weight and a transmitter transmits the feedback information to a counterpart receiver.

摘要翻译： 一种用于在使用多输入多输出自适应天线阵列方案的移动通信系统中发送和接收用于创建发送/接收波束的加权信息的方法。 该方法包括接收预定信号的接收机，并且差分地提供第一方案的权重和用于最小化接收信号与预定参考信号之间的误差的第二方案，由此获得最小误差值。 接收机通过解扩接收的信号来产生解扩信号，通过使用去扩展信号和最小误差值的计算产生接收机通过接收机产生接收波束的接收权重，并产生用于通过 通过使用接收权重和最小误差值计算对方发射机。 接收机产生包括传输权重的预定反馈信息，并且发射机将反馈信息发送到对方接收机。

公开(公告)号：US07535869B2

公开(公告)日：2009-05-19

申请号：US10941744

申请日：2004-09-15

申请人： Seok-Hyun Yoon ,  Chang-Ho Suh ,  Young-Kwon Cho ,  Chan-Byoung Chae ,  Jung-Min Ro

发明人： Seok-Hyun Yoon ,  Chang-Ho Suh ,  Young-Kwon Cho ,  Chan-Byoung Chae ,  Jung-Min Ro

IPC分类号： H04Q7/20 ,  H04Q7/38

CPC分类号： H04L5/0007 ,  H04L5/0046 ,  H04L5/006 ,  H04W28/06 ,  H04W48/16 ,  H04W72/00 ,  H04W72/0453 ,  H04W72/085

摘要： A mobile communication system and method utilizing Orthogonal Frequency Division Multiplexing (OFDM) receives channel quality information (CQIs) for subcarriers through which reference signals are transmitted and subcarriers through which data signals are transmitted, in subbands, each including a predetermined number of subcarriers among a plurality of the subcarriers. The CQIs are received from respective receivers. Resources are dynamically assigned to the respective receivers according to the feedback CQIs, thereby enabling dynamic resource assignment with minimized signaling overhead.

摘要翻译： 利用正交频分复用（OFDM）的移动通信系统和方法，在子带中接收用于发送参考信号的子载波的信道质量信息（CQI）和数据信号被发送的子载波，每个子带包括预定数量的子载波 多个副载波。 从各个接收机接收CQI。 根据反馈CQI将资源动态地分配给相应的接收机，从而使得能够以最小化的信令开销进行动态资源分配。

公开(公告)号：US20050018755A1

公开(公告)日：2005-01-27

申请号：US10898777

申请日：2004-07-26

申请人： Chan-Byoung Chae ,  Chang-Ho Suh ,  Young-Kwon Cho ,  Byoung-Yun Kim ,  Jung-Min Ro

发明人： Chan-Byoung Chae ,  Chang-Ho Suh ,  Young-Kwon Cho ,  Byoung-Yun Kim ,  Jung-Min Ro

IPC分类号： H04B7/02 ,  H04B1/3822 ,  H04B1/40 ,  H04B1/707 ,  H04B7/04 ,  H04B7/06 ,  H04B7/08 ,  H04B7/10 ,  H04J11/00 ,  H04J13/00 ,  H04J99/00 ,  H04W16/28 ,  H04W28/18 ,  H04K1/00

CPC分类号： H04B7/0634 ,  H04B1/707 ,  H04B7/0617 ,  H04B7/086

摘要： Disclosed are a method and a system for transmitting/receiving signals in a mobile communication system using a multiple input multiple output adaptive antenna array scheme. A first receiver calculates a reception weight value by using a de-spread signal of a reception signal for creating a reception beam of the first receiver and calculates a transmission weight value by using the calculated reception weight value for creating a transmission beam of the second transmitter, thereby creating feedback information including the transmission weight value. A first transmitter transmits the feedback information to a second receiver. The second receiver receives the feedback information and the second transmitter detects the transmission weight value from the feedback information received in the second receiver, and creates the transmission beam corresponding to the detected transmission weight value in order to transmit a signal by applying the transmission beam to the signal.

摘要翻译： 公开了一种使用多输入多输出自适应天线阵列方案在移动通信系统中发送/接收信号的方法和系统。 第一接收机通过使用用于创建第一接收机的接收波束的接收信号的去扩展信号来计算接收权重值，并通过使用计算出的接收权重值来计算发送权重值，以产生第二发送器的发送波束 从而产生包括发送权重值的反馈信息。 第一发射机将反馈信息发送到第二接收机。 第二接收机接收反馈信息，第二发射机从在第二接收机中接收的反馈信息中检测发射权重值，并创建与检测到的发射权重值对应的发射波束，以便通过将发射波束应用于 信号。

公开(公告)号：US07483502B2

公开(公告)日：2009-01-27

申请号：US10922467

申请日：2004-08-20

申请人： Chan-Byoung Chae ,  Katz-Marcos Daniel ,  Jung-Min Ro ,  Chang-Ho Suh

发明人： Chan-Byoung Chae ,  Katz-Marcos Daniel ,  Jung-Min Ro ,  Chang-Ho Suh

IPC分类号： H04L25/08

CPC分类号： H04B7/086

摘要： A method for receiving a signal from a radio unit in a base station having at least one reception antenna is disclosed. The method includes receiving a reception signal via the reception antenna, and generating an output signal using the reception signal and a reception beam weight for a previous time; calculating a cost function using a desired reception signal transmitted from the radio unit among the reception signal and the generated output signal; calculating a trace vector using the calculated cost function and the reception signal; updating the reception beam weight using the trace vector for a next time; and generating a reception beam by applying the updated reception beam weight.

摘要翻译： 公开了一种用于从具有至少一个接收天线的基站中的无线电单元接收信号的方法。 该方法包括经由接收天线接收接收信号，并使用接收信号和前一时刻的接收波束权重产生输出信号; 使用从所述无线单元在所述接收信号和所生成的输出信号中发送的期望接收信号来计算成本函数; 使用计算的成本函数和接收信号计算跟踪向量; 使用跟踪向量更新下一次的接收波束权重; 以及通过应用更新的接收波束权重来产生接收波束。

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：US20050068909A1

公开(公告)日：2005-03-31

申请号：US10948426

申请日：2004-09-23

申请人： Chan-Byoung Chae ,  Seok-Hyun Yoon ,  Young-Kwon Cho ,  Chang-Ho Suh ,  Jung-Min Ro ,  Katz Daniel ,  Hong-Sil Jeong

发明人： Chan-Byoung Chae ,  Seok-Hyun Yoon ,  Young-Kwon Cho ,  Chang-Ho Suh ,  Jung-Min Ro ,  Katz Daniel ,  Hong-Sil Jeong

IPC分类号： H04B7/155 ,  H04B7/005 ,  H04B7/06 ,  H04L1/00 ,  H04L1/06 ,  H04Q7/00

CPC分类号： H04L1/0625 ,  H04B7/0673 ,  H04L1/0003 ,  H04L1/0019 ,  H04L1/0025 ,  H04L1/0026 ,  H04L1/0631

摘要： Disclosed is a transmission scheme for a transmitter according to a channel state in a communication system where the transmitter has M transmit antennas and a receiver has N receive antennas. Upon the input of data, the transmitter processes the data in a transmission scheme selected from among a plurality of transmission schemes, and transmits the processed data to the receiver. The receiver estimates the channel state of the received signal, selects a transmission scheme according to a channel state corresponding to the channel state estimation result, and feeds back to the transmitter transmission scheme information indicating the selected transmission scheme. The transmitter determines the transmission scheme corresponding to the received transmission scheme information.

摘要翻译： 公开了根据通信系统中的信道状态的发射机的传输方案，其中发射机具有M个发射天线，并且接收机具有N个接收天线。 在输入数据时，发射机以从多个传输方案中选择的传输方案处理数据，并将处理的数据发送到接收机。 接收机估计接收信号的信道状态，根据与信道状态估计结果对应的信道状态来选择传输方案，并且反馈到指示所选传输方案的发射机传输方案信息。 发射机确定与所接收的传输方案信息对应的传输方案。

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。