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：US20050201307A1

公开(公告)日：2005-09-15

申请号：US11005398

申请日：2004-12-06

申请人： Chan-Byoung Chae ,  Hong-Sil Jeong ,  Katz Daniel ,  Seok Yoon ,  Dong-Seek Park ,  Chang-Ho Suh ,  Jae-Yoel Kim ,  Young-Kwon Cho

发明人： Chan-Byoung Chae ,  Hong-Sil Jeong ,  Katz Daniel ,  Seok Yoon ,  Dong-Seek Park ,  Chang-Ho Suh ,  Jae-Yoel Kim ,  Young-Kwon Cho

IPC分类号： H04J99/00 ,  H04B7/04 ,  H04L1/06 ,  H04J11/00

CPC分类号： H04B7/0417 ,  H04B7/0634 ,  H04L1/06

摘要： Disclosed is a method for transmitting/receiving data by use of feedback information in a closed loop multi input multi output (MIMO) mobile communication system. The method includes the steps of feeding back transmission eigenvector selection information determined through a singular value decomposition (SVD) of a channel matrix and transmitting the transmission eigenvector selection information to a transmitter; and receiving the feedback transmission eigenvector selection information, selecting transmission data according to the received transmission eigenvector selection information, mapping the selected transmission data to at least one transmission antenna, and transmitting the transmission data to a receiver.

摘要翻译： 公开了一种在闭环多输入多输出（MIMO）移动通信系统中通过使用反馈信息发送/接收数据的方法。 该方法包括以下步骤：反馈通过信道矩阵的奇异值分解（SVD）确定的发送特征向量选择信息，并将发送特征向量选择信息发送给发送机; 以及接收所述反馈传输特征向量选择信息，根据接收到的传输特征向量选择信息选择传输数据，将所选择的传输数据映射到至少一个传输天线，以及将传输数据发送到接收机。

公开(公告)号：US20050249306A1

公开(公告)日：2005-11-10

申请号：US11124888

申请日：2005-05-09

申请人： Chan-Byoung Chae ,  Hong-Sil Jeong ,  Katz Daniel ,  Dong-Seek Park ,  Young-Kwon Cho

发明人： Chan-Byoung Chae ,  Hong-Sil Jeong ,  Katz Daniel ,  Dong-Seek Park ,  Young-Kwon Cho

IPC分类号： H04J99/00 ,  H04B7/04 ,  H04L1/02 ,  H04L1/06

CPC分类号： H04L1/0643

摘要： Disclosed is an apparatus and method for encoding/decoding a space time block code in a mobile communication system using a multiple input multiple output scheme. In a transmitter employing a plurality of transmit antennas in the mobile communication system, if a signal to be transmitted is input, the transmit signal is pre-encoded according to a preset coding scheme, the pre-encoded signal is space-time mapped according to a number of the transmit antennas to employ a preset space time block coding scheme, and the space-time mapped signal is transmitted through the transmit antennas by applying the preset space time block coding scheme to the space-time mapped signal.

摘要翻译： 公开了一种使用多输入多输出方案在移动通信系统中对时空块码进行编码/解码的装置和方法。 在移动通信系统中采用多个发射天线的发射机中，如果要发射的信号被输入，则根据预设的编码方案对发射信号进行预编码，根据预编码信号进行空时映射 使用预设空间时间块编码方案的多个发送天线，并且通过将预设空间时间块编码方案应用于时空映射信号，通过发送天线发送空时映射信号。

公开(公告)号：US20050281350A1

公开(公告)日：2005-12-22

申请号：US11156689

申请日：2005-06-20

申请人： Chan-Byoung Chae ,  Hong-Sil Jeong ,  Young-Kwon Cho ,  Dong-Seek Park ,  Katz Daniel

发明人： Chan-Byoung Chae ,  Hong-Sil Jeong ,  Young-Kwon Cho ,  Dong-Seek Park ,  Katz Daniel

IPC分类号： H04L27/26 ,  H04B7/06 ,  H04J99/00 ,  H04L1/02

CPC分类号： H04B7/068

摘要： An apparatus and method for SFBC coding and decoding in a communication system using a plurality of (N1) Tx antennas are provided. In a transmitter using Nt transmit antennas, a pre-coder pre-codes an input symbol sequence using a pre-coding matrix. The pre-coding matrix is produced by puncturing a unitary matrix in a predetermined method. An encoder generates a plurality of vectors by grouping the symbols of the pre-coded symbol sequence by twos, space-frequency maps each of the vectors by encoding each of the vectors in an Alamouti coding scheme, and provides each of the space-frequency mapped symbols to a predetermined OFDM modulator.

摘要翻译： 提供了一种使用多个（N 1 1）个Tx天线的通信系统中的SFBC编码和解码的装置和方法。 在使用N T发射天线的发射机中，预编码器使用预编码矩阵对输入符号序列进行预编码。 预编码矩阵是通过以预定方法对单一矩阵进行打孔而产生的。 编码器通过对预编码符号序列的符号进行二进制分组来生成多个向量，通过以Alamouti编码方案对每个向量进行编码，对每个向量进行空间频率映射，并且提供每个空间频率映射 符号到预定的OFDM调制器。

公开(公告)号：US20050013349A1

公开(公告)日：2005-01-20

申请号：US10893439

申请日：2004-07-16

申请人： Chan-Byoung Chae ,  Chang-Ho Suh ,  Katz Daniel ,  Seok-Hyun Yoon ,  Byoung-Yun Kim

发明人： Chan-Byoung Chae ,  Chang-Ho Suh ,  Katz Daniel ,  Seok-Hyun Yoon ,  Byoung-Yun Kim

IPC分类号： H04B7/02 ,  H04B1/707 ,  H04B1/712 ,  H04B7/08 ,  H04B7/10 ,  H04J11/00 ,  H04W16/28 ,  H04W28/18

CPC分类号： H04B7/086 ,  H04B7/0854

摘要： A mobile communication system receives a despread signal of a reception signal, and determines a first error value by using a first scheme at a timing point, and a second error value by using a second scheme different from the first scheme at the timing point, and determines a first scheme application weight according to a difference between the first error value and the second error value, and a second scheme application weight according to the difference between the first error value and the second error value, and generates a third error value using a scheme that combines the first scheme to which the first scheme application weight is applied and the second scheme to which the second scheme application weight is applied, and determines a reception beam weight using the despread reception signal, the third error value, and an output signal generated by applying the reception beam to the despread reception signal, wherein the reception beam weight is used for generating the reception beam.

摘要翻译： 移动通信系统接收接收信号的去扩展信号，并且通过在定时点使用第一方案来确定第一误差值，并且通过在定时点使用与第一方案不同的第二方案来确定第二误差值，以及 根据第一误差值和第二误差值之间的差，确定第一方案应用权重，以及根据第一误差值和第二误差值之间的差异确定第二方案应用权重，并且使用 组合应用第一方案应用权重的第一方案和应用第二方案应用权重的第二方案，并且使用解扩接收信号，第三误差值和输出信号来确定接收波束权重 通过将接收波束应用于去扩展接收信号而产生，其中接收波束权重用于产生接收 梁。

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：US20050013381A1

公开(公告)日：2005-01-20

申请号：US10891613

申请日：2004-07-15

申请人： Chang-Ho Suh ,  Chan-Soo Hwang ,  Katz Daniel ,  Chan-Byoung Chae ,  Ho-Kyu Choi

发明人： Chang-Ho Suh ,  Chan-Soo Hwang ,  Katz Daniel ,  Chan-Byoung Chae ,  Ho-Kyu Choi

IPC分类号： H04J11/00 ,  H04B7/06 ,  H04K1/10 ,  H04L27/26

CPC分类号： H04J13/0014 ,  H04B7/068 ,  H04J11/003 ,  H04J13/16 ,  H04L5/0023 ,  H04L5/0048 ,  H04L25/0204 ,  H04L25/0226 ,  H04L27/262 ,  H04L27/2657

摘要： A method for generating a preamble sequence in an OFDM (Orthogonal Frequency Division Multiplexing) communication system that uses A sub-carriers in a frequency domain and uses N Tx (Transmission) antennas, includes the steps of: generating N sequences, each having a length of ‘B/N’, by dividing B sub-carriers from among the A sub-carriers by the ‘N’ indicative of the number of the Tx antennas; and mapping, for each of the N sequences, individual components of the sequence to the B/N sub-carriers from among the A sub-carriers on a one by one basis in order to assign the components of the sequence to the B/N sub-carriers, and assigning null data to remaining sub-carriers other than the B/N sub-carriers from among the A-sub-carriers, such that a preamble sequence of a corresponding Tx antenna is generated.

摘要翻译： 一种在频域中使用A个子载波并使用N Tx（发送）天线的OFDM（正交频分复用）通信系统中生成前置码序列的方法，包括以下步骤：生成N个序列，每个序列具有长度 通过将A个副载波中的B个子载波除以指示Tx天线数量的“N”，将“B / N”分配给“B / N” 并且对于N个序列中的每一个，将序列的各个分量逐一地映射到A个子载波中的B / N个子载波，以便将该序列的分量分配给B / N 并且将空值数据分配给来自A子载波的B / N个子载波以外的剩余子载波，从而生成对应的Tx天线的前导码序列。

公开(公告)号：US20060083270A1

公开(公告)日：2006-04-20

申请号：US11194438

申请日：2005-08-01

申请人： Sung-Jin Lee ,  Young-Kwon Cho ,  Katz Daniel ,  Dong-Seek Park ,  Jung-Je Son ,  Chang-Hoi Koo ,  Frank Fitzek ,  Tatiana Madsen ,  Ramjee Prasad

发明人： Sung-Jin Lee ,  Young-Kwon Cho ,  Katz Daniel ,  Dong-Seek Park ,  Jung-Je Son ,  Chang-Hoi Koo ,  Frank Fitzek ,  Tatiana Madsen ,  Ramjee Prasad

IPC分类号： H04J3/00

CPC分类号： H04L12/2854 ,  H04L69/04 ,  H04L69/14 ,  H04L69/22 ,  H04W28/06

摘要： An apparatus transmits header information in a wireless communication system using a plurality of channels. In the apparatus, upon receiving uncompressed header (UCH) information, a compressor generates compressed header (CH) information and additional information container (AIC) information by compressing the UCH information with a predetermined compression scheme. A transmitter transmits the CH information through a first channel among the plurality of channels, and transmits the AIC information through at least one of the plurality of channels except for the first channel.

摘要翻译： 一种装置使用多个信道在无线通信系统中发送报头信息。 在该设备中，在接收到未压缩报头（UCH）信息时，压缩器通过以预定的压缩方案压缩UCH信息来生成压缩报头（CH）信息和附加信息容器（AIC）信息。 发射机通过多个信道中的第一信道发送CH信息，并且通过除了第一信道之外的多个信道中的至少一个发送AIC信息。

公开(公告)号：US20050271016A1

公开(公告)日：2005-12-08

申请号：US11123235

申请日：2005-05-06

申请人： Byoung-Yun Kim ,  Song-Hun Kim ,  Katz Daniel ,  Seong-Ill Park ,  Tobias Scholand ,  Peter Jung ,  Achim Seebens ,  Ar H.A.

发明人： Byoung-Yun Kim ,  Song-Hun Kim ,  Katz Daniel ,  Seong-Ill Park ,  Tobias Scholand ,  Peter Jung ,  Achim Seebens ,  Ar H.A.

IPC分类号： H04B7/04 ,  H01Q1/12 ,  H01Q3/26 ,  H04B7/06 ,  H04B7/08 ,  H04B17/00 ,  H04Q7/00

CPC分类号： H01Q3/2605 ,  H01Q1/1257 ,  H04B7/0617 ,  H04B7/086 ,  H04B17/345

摘要： A joint channel and Direction of Arrival (DOA) estimation apparatus and method simplified to efficiently estimate a channel impulse response associated with a spatially selective transmission channel occurring in a mobile radio channel are provided. To uniformly process all directions, angles associated with a beam are predetermined according to a preset method. This selection calculates a linear system model with regular spatial sampling using regular spatial separation of beam angles. The novel beam forming compensates for a difference between an adaptive array antenna and a sector type antenna using appropriate beam steering according to the calculated linear system model, thereby improving performance and facilitating implementation.

摘要翻译： 提供了一种简化为有效估计与在移动无线电信道中发生的空间选择性传输信道相关联的信道脉冲响应的联合信道和到达方向（DOA）估计装置和方法。 为了均匀地处理所有方向，根据预设方法预定与光束相关联的角度。 该选择使用规则空间分离波束角计算具有常规空间采样的线性系统模型。 新颖的波束形成根据计算的线性系统模型补偿适应性阵列天线和扇形天线之间的差异，从而改善性能并促进实现。