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71.发明申请TRANSMITTING DEVICE, RECEIVING DEVICE, TRANSMITTING METHOD, RECEIVING METHOD AND WIRELESS COMMUNICATION SYSTEM 审中-公开发送装置，接收装置，发送方法，接收方法和无线通信系统公开(公告)号：US20090238290A1
公开(公告)日：2009-09-24
申请号：US12091092
申请日：2006-10-27
IPC分类号： H04L27/28
CPC分类号： H04B7/0613 , H04B7/0684 , H04L1/0026 , H04L1/0041 , H04L1/06 , H04L5/0023 , H04L5/0051 , H04L25/0204 , H04L25/0226 , H04L27/2613 , H04W24/00 , H04W48/08 , H04W72/04
摘要： Provided is a transmitting device which improves a data rate while maintaining channel estimation accuracy, or improves channel estimation accuracy while maintaining a data rate, in a MIMO-OFDM system. In the transmitting device, a transmitting antenna information adding section (104) adds transmitting antenna information to a pilot signal by performing different phase rotation to the separate pilot signal by transmitting antenna by having a common pilot signal as a reference phase. A pilot arranging section (107) is previously provided with, as a conversion table, a corresponding relationship between combination information of the transmitting antenna and a subcarrier to be used for transmission of the pilot signal and control information. The pilot arranging section (107) allocates the pilot signal outputted from the transmitting antenna information adding section (104) to the subcarrier to have the combination information in accordance with the control information.
摘要翻译： 提供了一种发送装置，其在维持信道估计精度的同时提高数据速率，或者在MIMO-OFDM系统中保持数据速率的同时提高信道估计精度。 在发送装置中，发送天线信息添加部（104）通过以公共导频信号作为参考相位，通过发送天线对分离导频信号进行不同相位旋转，将发送天线信息添加到导频信号。 导频安排部分（107）预先具有作为转换表的发送天线的组合信息和要用于发送导频信号的子载波和控制信息之间的对应关系。 导频安排部分（107）将从发射天线信息添加部分（104）输出的导频信号分配给子载波，以根据控制信息具有组合信息。
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公开(公告)号：US07593317B2
公开(公告)日：2009-09-22
申请号：US10503010
申请日：2003-08-01
IPC分类号： H04J11/00
CPC分类号： H01Q3/2605 , H01Q3/267 , H04B7/0617 , H04B7/086 , H04B17/10 , H04B17/12 , H04B17/18 , H04B17/20 , H04B17/21 , H04L1/06 , H04L27/2602 , H04L27/2626 , H04L27/2647
摘要： A transmission weight computing section computes a transmission weight for directional transmission using an OFDM signal. A transmission correcting value memory section stores one correcting value for correcting the transmission weight for each sub-carrier of an OFDM signal or each band gathering a plurality of sub-carriers. A transmission weight correcting section corrects the transmission weight by the correcting value. A transmitting branch weights transmission data by a transmission weight outputted from the transmission weight correcting section on a sub-carrier-by-sub-carrier basis and delivers it to an antenna.
摘要翻译： 传输权重计算部分使用OFDM信号来计算定向传输的传输权重。 发送校正值存储部存储用于校正OFDM信号的每个子载波的发送权重或收集多个子载波的每个频带的一个校正值。 发送权重校正部通过校正值来校正发送权重。 发送分支通过从子载波子载波基础上从发送加权校正部分输出的发送权重对发送数据进行加权，并将其发送到天线。
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73.发明申请公开(公告)号：US20090034637A1
公开(公告)日：2009-02-05
申请号：US11912630
申请日：2006-04-24
申请人： Masayuki Hoshino , Ryohei Kimura , Yasuaki Yuda , Tomohiro Imai , Kenichi Miyoshi , Akihiko Nishio
发明人： Masayuki Hoshino , Ryohei Kimura , Yasuaki Yuda , Tomohiro Imai , Kenichi Miyoshi , Akihiko Nishio
CPC分类号： H04B7/0669 , H04B7/0417 , H04B7/063 , H04B7/0632 , H04B7/0673 , H04B17/24 , H04L1/0003 , H04L1/0009 , H04L1/004 , H04L1/1867 , H04W52/267
摘要： A link adaptation method and others wherein feedback information amount can be reduced. According to this method, a receiving apparatus (100) calculates, based on a channel matrix, a capacity (C) and a stream ratio (r) that is a ratio of the reception qualities of streams, and then transmits, as feedback information, the calculated capacity (C) and stream ratio (r) to a transmitting apparatus. In the transmitting apparatus (200), the number of transmittable streams, the modulation scheme and the fed-back capacity (C) are used to calculate the encoding ratio (R) and sequence length (S) of spatial multiplexed symbols. Then, the modulation scheme (M1-Mn) of each stream is decided based on the fed-back stream ratio (r) and the sequence length (S) of spatial multiplexed symbols.
摘要翻译： 链路适配方法等可以减少反馈信息量。 根据该方法，接收装置（100）基于信道矩阵计算作为流的接收质量的比率的容量（C）和流比（r），然后作为反馈信息， 计算的容量（C）和流量比（r）。 在发送装置（200）中，使用可发送流的数量，调制方式和反馈容量（C）来计算空间复用符号的编码率（R）和序列长度（S）。 然后，基于反馈流比（r）和空间复用符号的序列长度（S）来决定各流的调制方式（M1-Mn）。
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公开(公告)号：US20080273517A1
公开(公告)日：2008-11-06
申请号：US11912636
申请日：2006-04-26
申请人： Akihiko Nishio , Yasuaki Yuda
发明人： Akihiko Nishio , Yasuaki Yuda
IPC分类号： H04J3/00
CPC分类号： H04L5/0053 , H04L1/0003 , H04L1/0009 , H04L1/1812 , H04L27/2626 , H04L27/2647
摘要： The circuit scale of a wireless communication apparatus at the data receiving end in a wireless communication performing an adaptive control for each of subcarriers or subchannels can be reduced. In the present apparatus, frame forming parts (103-1 to 103-m) each multiplex a pilot, control information and transport data to form a frame for a respective one of subchannels (1 to m). A subcarrier assigning part (104) assigns subcarriers designated from an adaptive control part (114) to the respective frames formed by the frame forming parts (103-1 to 103-m). A timing control part (105) establishes mutually different frame timing offsets to the respective frames received from the subcarrier assigning part (104).
摘要翻译： 可以减少对每个子载波或子信道执行自适应控制的无线通信中的数据接收端的无线通信装置的电路规模。 在本装置中，帧形成部（103-1〜103-m）各自复用导频，控制信息和传输数据，以形成子信道（1〜m）中的各个子帧的帧。 子载波分配部分（104）将从自适应控制部分（114）指定的子载波分配给由帧形成部分（103-1至103-m）形成的各个帧。 定时控制部分（105）为从子载波分配部分（104）接收到的各个帧建立相互不同的帧定时偏移。
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公开(公告)号：US07333056B2
公开(公告)日：2008-02-19
申请号：US10524253
申请日：2003-09-26
IPC分类号： G01S5/02
CPC分类号： G01S3/043 , G01S3/14 , H04B7/086 , H04L27/2601
摘要： An adaptive antenna radio communication device comprises a divided band direction estimating unit (4) for estimating the direction by calculating the cross correlations between a pilot signal and sub-carrier signals of the respective divided bands received by an array antenna (1) and calculating a spatial profile from correlation matrices determined by combining the correlation values between antenna elements of the different sub-carriers according to the output of the cross correlation calculation; a divided band array weight creating unit (5) for creating a weight of a receive array having a directional beam in the direction of estimation for each divided band; and a sub-carrier directivity creating unit (6) for creating a directivity by multiplication-combining the created receive array weight with the corresponding sub-carrier signal.
摘要翻译： 一种自适应天线无线电通信装置包括：分频带方向估计单元，用于通过计算由阵列天线（1）接收的各个分频带的导频信号和副载波信号之间的互相关，来估计方向，并计算 通过根据互相关计算的输出组合不同子载波的天线元件之间的相关值确定的相关矩阵的空间分布; 分割带阵列权重创建单元（5），用于在每个分割频带的方向上产生具有定向波束的接收阵列的权重; 以及子载波方向性创建单元（6），用于通过将创建的接收阵列权重与相应的副载波信号相乘合成来产生方向性。
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公开(公告)号：US07263083B2
公开(公告)日：2007-08-28
申请号：US10430397
申请日：2003-05-07
IPC分类号： H04B7/216
CPC分类号： H04B1/7113 , G01S3/74 , H04B1/7117 , H04B7/0617 , H04B7/086 , H04B2201/70701 , H04B2201/70715 , H04L1/06
摘要： A receiver having an array antenna estimates arrival directions of multiple paths that arrive with an angular spread. Consequently, arrival direction estimation accuracy can be ensured without increasing throughput even if the power every path is low by estimating an average arrival direction of an entire set of multiple paths having the angular spread from a result of one angular spectrum by multiple correlation operation units that perform mutual correlation operations with pilot signals for baseband signals received by the array antenna, a path detection unit that detects multiple arrival path receiving timings by generating a delay profile based on output of each of the correlation operation units, a path correlation value synthesis unit that synthesizes a correlation operation value calculated in the multiple correlation operation units and an arrival direction estimation unit that collectively estimates multiple path arrival directions using output of the path correlation value synthesis unit.
摘要翻译： 具有阵列天线的接收机估计以角度扩展到达的多个路径的到达方向。 因此，即使通过多个相关运算单元从一个角度频谱的结果估计具有角度扩展的整个多个路径的整个组的平均到达方向，即使通过多个相关运算单元来估计每个路径的功率，也可以确保到达方向估计精度， 执行与阵列天线接收的基带信号的导频信号的相互关联操作;路径检测单元，通过基于每个相关运算单元的输出生成延迟分布来检测多个到达路径接收定时;路径相关值合成单元， 合成在多个相关运算单元中计算出的相关运算值和使用路径相关值合成单元的输出共同估计多个路径到达方向的到达方向估计单元。
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77.发明授权公开(公告)号：US06922450B2
公开(公告)日：2005-07-26
申请号：US09846390
申请日：2001-05-02
IPC分类号： H01Q3/26 , G01S3/04 , G01S3/14 , G01S3/28 , G01S3/74 , G01S7/02 , H04B1/71 , H04B7/10 , H04B7/26 , H04J13/00 , H04W16/28 , H04W24/00 , H04L27/22 , H03D1/04
摘要： An A/D converter converts the signal received by an array antenna and frequency-converted to a digital signal by a frequency converter. A correlation detector uses the chip rate as a cycle frequency and calculates a cyclic correlation matrix of spread spectrum signals stored in data storage. A cycle frequency detector detects the cycle frequency of an interference signal output from A/D converter. A correlation detector uses the detection result of the cycle frequency detector as a cycle frequency and calculates a cyclic correlation matrix of the signal, which becomes an interference signal, using the signal output from A/D converter. A direction of arrival is estimated, using the cyclic correlation matrices calculated by correlation detector and the correlation detector calculates the respective eigenvalues and eigenvectors and estimates the directions of arrival of a spread spectrum signal and a signal, which becomes an interference signal.
摘要翻译： A / D转换器将由阵列天线接收的信号转换成变频器，并将其频率转换为数字信号。 相关检测器使用码片速率作为周期频率，并计算存储在数据存储器中的扩频信号的循环相关矩阵。 循环频率检测器检测从A / D转换器输出的干扰信号的周期频率。 相关检测器使用周期频率检测器的检测结果作为周期频率，并使用从A / D转换器输出的信号计算成为干扰信号的信号的循环相关矩阵。 使用由相关检测器计算的循环相关矩阵来估计到达方向，并且相关检测器计算各自的特征值和特征向量，并估计扩频信号和成为干扰信号的信号的到达方向。
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公开(公告)号：US06642888B2
公开(公告)日：2003-11-04
申请号：US10020477
申请日：2001-12-12
IPC分类号： G01S502
CPC分类号： G06K9/0057 , G01S3/74
摘要： A radio-wave arrival-direction apparatus calculates a correlation matrix of received signals by correlation calculation between antenna elements, and calculates a noise spatial eigenmatrix, of which each row or column is an eigenvector belonging to a noise eigen-space, by eigenvalue factorization of the correlation matrix. The apparatus also factorizes a matrix including a product of the noise spatial eigenmatrix and a conjugated and transposed matrix of it to an upper or lower triangular matrix, using cholesky factorization. The apparatus calculates an angle evaluation value in a predetermined angle range of an arrival-angle evaluation function using the derived upper or lower triangular matrix, and determines an arrival angle based on the calculation result. A calculation amount in a variable angle range can be thus reduced without causing accuracy degradation of arrival direction, in an algorism requiring an angle sweep for arrival angle estimation of MUSIC method or the like.
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公开(公告)号：US08599071B2
公开(公告)日：2013-12-03
申请号：US13079415
申请日：2011-04-04
CPC分类号： G01S3/043 , G01S3/14 , H04B7/086 , H04L27/2601
摘要： A device for estimating a direction-of-arrival of a radio wave, the device comprising an array antenna including a plurality of antenna elements for receiving a high frequency signal, a demultiplexer for demultiplexing the received high frequency signal for each of the plurality of antenna elements to generate a plurality of frequency component signals and a direction estimating unit for estimating the direction-of-arrival of the radio wave by using two or more of the plurality of frequency component signals which are contiguous in a frequency direction.
摘要翻译： 一种用于估计无线电波的到达方向的装置，该装置包括：阵列天线，包括用于接收高频信号的多个天线元件;解复用器，用于对接收到的多个天线中的每个天线的高频信号进行解复用 用于生成多个频率分量信号的单元;以及方向估计单元，用于通过使用在频率方向上连续的多个频率分量信号中的两个或更多个来估计无线电波的到达方向。
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80.发明授权Transmitting apparatus, receiving apparatus and multiplex number controlling method 有权发送装置，接收装置和多路复用数控制方法公开(公告)号：US08345562B2
公开(公告)日：2013-01-01
申请号：US11915847
申请日：2006-06-01
申请人： Masayuki Hoshino , Ryohei Kimura , Yasuaki Yuda , Tomohiro Imai , Kenichi Miyoshi , Katsuhiko Hiramatsu
发明人： Masayuki Hoshino , Ryohei Kimura , Yasuaki Yuda , Tomohiro Imai , Kenichi Miyoshi , Katsuhiko Hiramatsu
IPC分类号： H04J1/16
CPC分类号： H04L1/0061 , H04B7/0417 , H04B7/0632 , H04B7/0697 , H04L1/0002 , H04L1/0021 , H04L1/203
摘要： A spatial multiplex number controlling method and others wherein streams can be separated for each of receivers and the transmission efficiency can be improved. In a receiving apparatus, a PER is calculated from a history of CRC test results per stream multiplex number. A reception quality and an offset corresponding to the calculated PER are fed back to a transmitting apparatus. The transmitting apparatus assigns, based on the fed-back reception quality and offset, the streams, thereby controlling the stream multiplex number.
摘要翻译： 空间多路复用数控制方法等，其中可以为每个接收机分离流，并且可以提高传输效率。 在接收装置中，根据每个流多路复用数的CRC测试结果的历史来计算PER。 将与计算出的PER对应的接收质量和偏移反馈到发送装置。 发送装置基于反馈接收质量和偏移分配流，从而控制流多路复用数。
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