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公开(公告)号：US08498327B2
公开(公告)日：2013-07-30
申请号：US13459884
申请日：2012-04-30
IPC分类号： H04B1/38
CPC分类号： H04B7/0619 , H04B7/0617 , H04B7/086 , H04B17/11 , H04B17/21
摘要： Wireless communication apparatus adopting a time division duplex system for transmission and reception using plural antennas, deviation of amplitude and phase occurring between transmission and reception circuits is detected and corrected using a communication signal. Channel estimation means detects channel information based on reception output of N reception circuits having a one-to-one correspondence with N antennas. Correction value detection means finds a correction value for correcting deviation occurring between each of N transmission circuits and each of the N reception circuits based on the channel information. A wireless communication apparatus transmits an already known signal (training signal) to a base station with which the wireless communication apparatus conducts communications. The base station executes channel estimation based on the already known signal and generates and transmits a correction signal (probe signal). The correction value detection means of the wireless communication apparatus detects the correction value using the correction signal.
摘要翻译： 采用使用多个天线进行发送和接收的时分双工系统的无线通信装置，使用通信信号检测和校正发送和接收电路之间发生的幅度和相位的偏差。 信道估计装置根据与N个天线一一对应的N个接收电路的接收输出来检测信道信息。 校正值检测装置根据频道信息找到校正发生在N个发送电路和N个接收电路中的每一个之间的偏差的校正值。 无线通信装置向无线通信装置进行通信的基站发送已知的信号（训练信号）。 基站根据已知的信号进行信道估计，生成并发送校正信号（探测信号）。 无线通信装置的校正值检测装置使用校正信号来检测校正值。
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公开(公告)号：US20130127655A1
公开(公告)日：2013-05-23
申请号：US13816045
申请日：2012-04-05
IPC分类号： G01S13/44
CPC分类号： G01S13/44 , G01S3/00 , G01S5/02 , G01S7/288 , G01S7/292 , G01S13/06 , G01S13/284 , G01S13/36 , G01S13/42 , G01S13/582 , G01S2013/0263
摘要： A radar receiver has plural antenna system processors each for performing coherent integration on the basis of correlation values between a reception signal and a transmission signal using correction amounts for phase variations corresponding to plural Doppler frequencies, plural correlation matrix generators for generating, for each of the plural different Doppler frequencies, correlation matrices which are pieces of phase difference information relating to an arrangement of reception antennas on the basis of sets of outputs of the coherent integration, respectively, an adder for adding together outputs of the plural correlation matrix generators, and an incoming direction estimator for estimating an incoming direction of reflection waves on the basis of outputs of the adder.
摘要翻译： 雷达接收机具有多个天线系统处理器，每个天线系统处理器用于基于接收信号和发送信号之间的相关值执行相干积分，所述相关值使用与多个多普勒频率对应的相位变化的校正量，多个相关矩阵发生器，用于为 多个不同的多普勒频率，分别基于相干积分的输出的集合，与接收天线的配置有关的相位差信息的相关矩阵，用于将多个相关矩阵发生器的输出相加的加法器，以及 输入方向估计器，用于基于加法器的输出来估计反射波的输入方向。
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公开(公告)号：US20130120185A1
公开(公告)日：2013-05-16
申请号：US13811641
申请日：2011-07-14
IPC分类号： G01S13/28
CPC分类号： G01S13/284 , G01S7/2813 , G01S7/285 , G01S13/288
摘要： A radar apparatus transmits a radio frequency transmission signal from a transmitter antenna in a given transmission period, and receives a signal of a reflected wave reflected by a target via a receiver antenna. The radar apparatus includes a transmission signal generator that generates a first transmission signal obtained by modifying a code having a third sub-code sequence and a fourth sub-code sequence coupled to each other in a first transmission period, and generates a second transmission period obtained by modifying a code having a fifth sub-code sequence and a sixth sub-code sequence coupled to each other in a second transmission period, and a transmitter RF unit that converts the first and second transmission signals into radio frequency transmission signals, and transmits the radio frequency transmission signals from the transmitter antenna.
摘要翻译： 雷达装置在给定的传输周期内从发射机天线发射射频信号，并通过接收机天线接收由目标反射的反射波的信号。 雷达装置包括：发送信号发生器，其生成通过在第一发送周期中修改具有彼此耦合的第三子码序列和第四子码序列的码而获得的第一发送信号，并且生成获得的第二发送周期 通过在第二发送周期中修改具有彼此耦合的第五子码序列和第六子码序列的码，以及将第一和第二发送信号转换为射频发送信号的发送器RF单元， 来自发射机天线的射频传输信号。
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44.发明授权Reception apparatus and reception method for setting a format per divided band 有权用于设定分割频带格式的接收装置和接收方法公开(公告)号：US08428040B2
公开(公告)日：2013-04-23
申请号：US13185028
申请日：2011-07-18
CPC分类号： H04W72/0453 , H04B7/01 , H04B7/0697 , H04L5/0023 , H04L5/0026 , H04L5/0028 , H04L5/0037 , H04L5/0044 , H04L5/0051 , H04L5/006 , H04W24/08 , H04W72/042 , H04W72/085
摘要： A radio communication apparatus capable of alleviating a burden in setting a transmission format and suppressing increases in the scale of the apparatus. In this apparatus, space multiplexing adaptability detection section (108) detects space multiplexing transmission adaptability for divided bands (DB-1 to DB-Nd) obtained by dividing a communication band to which Ns subcarrier signals belong in multicarrier transmission and to which a plurality of subcarrier signals belong, and outputs the detection results (#1 to #Nd). Transmission format setting section (110) sets a transmission format when carrying out radio transmission based on the detection results (#1 to #Nd) from space multiplexing adaptability detection section (108).
摘要翻译： 一种无线电通信装置，其能够减轻设置发送格式的负担，并抑制装置的规模的增加。 在该装置中，空间复用适应性检测部（108）检测通过划分N个副载波信号属于多载波传输的通信频带而得到的划分频带（DB-1〜DB-Nd）的空间复用传输适应性， 子载波信号属于，并输出检测结果（＃1至#Nd）。 发送格式设定部（110）根据来自空间复用适应性检测部（108）的检测结果（＃1〜#Nd），进行无线发送时的发送格式。
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45.发明授权Radio communication system, radio communication method, base station device, and terminal device 有权无线通信系统，无线通信方式，基站装置，终端装置公开(公告)号：US08416748B2
公开(公告)日：2013-04-09
申请号：US11568571
申请日：2005-04-20
申请人： Takaaki Kishigami , Yoichi Nakagawa
发明人： Takaaki Kishigami , Yoichi Nakagawa
IPC分类号： H04W4/00
CPC分类号： H04W16/28 , H04B7/0452 , H04B7/0632 , H04B7/0634 , H04B7/0639 , H04B7/0665 , H04B7/0854
摘要： A wireless communication system capable of removing a transmission signal to a different terminal space division multiplexed, an interference signal, in a terminal when wireless communications are conducted using space division multiple access is provided. A base station apparatus sends a notification of dedicated data transmission to a space division multiplexed terminal MSm and also sends a notification of information concerning a transmission beam used in a different terminal space division multiplexed and information concerning signal power used in the different terminal normalized in the terminal MSm. Based on the sent information, each terminal MSm calculates interference cancel weight according to MMSE criterion as the weight to maximize SINR and a reception signal is multiplied by the obtained interference cancel weight for decreasing the interference component and then the signal is detected by maximum likelihood estimation based on information of signal constellation transmitted for receiving spatially multiple-transmitted signal.
摘要翻译： 提供一种无线通信系统，其能够在使用空分多路访问进行无线通信时，将发送信号去除到终端中的不同终端空分复用，干扰信号。 基站装置向空分多路复用终端MSm发送专用数据发送通知，并且发送关于在不同终端空分多路复用中使用的发送波束的信息的通知，以及关于在不同终端中使用的信号功率的信息， 终端MSm。 根据所发送的信息，每个终端MSm根据MMSE准则计算干扰消除权重作为权重以最大化SINR，并且接收信号乘以所获得的干扰消除权重以减小干扰分量，然后通过最大似然估计来检测信号 基于发送的用于接收空间多发信号的信号星座的信息。
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公开(公告)号：US20130010858A1
公开(公告)日：2013-01-10
申请号：US13635531
申请日：2011-03-18
申请人： Takaaki Kishigami , Daichi Imamura , Isamu Yoshii
发明人： Takaaki Kishigami , Daichi Imamura , Isamu Yoshii
IPC分类号： H04N7/32
CPC分类号： H04N19/114 , H04N19/149 , H04N19/196
摘要： When controlling transmission channel parameters and video encoding parameters so as to be linked to each other in video transmission, the video quality on the receiving side is further improved. As a parameter control unit that controls video encoding parameters regarding video encoding in a video encoding unit and transmission channel parameters regarding error correction coding and modulation in a channel coding/modulation unit so as to be linked to each other, a cross layer rate control unit is provided. The cross layer rate control unit performs variable control of the GOP size according to propagation changes by reducing the GOP size when the predicted value of the PHY transmission rate is larger than a determined reference value and increasing the GOP size when the predicted value of the PHY transmission rate is equal to or less than the determined reference value.
摘要翻译： 当在视频传输中控制传输信道参数和视频编码参数以彼此链接时，接收侧的视频质量进一步提高。 作为控制视频编码单元中的视频编码的视频编码参数的参数控制单元以及与频道编码/调制单元中的纠错编码和调制相关的传输信道参数，以便彼此链接，交叉层速率控制单元 被提供。 当PHY传输速率的预测值大于所确定的参考值时，跨层速率控制单元通过减小GOP大小来根据传播变化执行GOP大小的可变控制，并且当PHY的预测值 传输速率等于或小于所确定的参考值。
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公开(公告)号：US20120320861A1
公开(公告)日：2012-12-20
申请号：US13581687
申请日：2011-02-25
申请人： Ryohei Kimura , Takaaki Kishigami , Isamu Yoshii , Daichi Imamura
发明人： Ryohei Kimura , Takaaki Kishigami , Isamu Yoshii , Daichi Imamura
IPC分类号： H04W72/04
CPC分类号： H04L5/0007 , H04L5/003 , H04L5/0032 , H04L5/0048
摘要： A wireless communications device that transmits a multiplexed signal of a plurality of data sets of different sizes to a communications terminal includes an empty resource block detection section, which detects empty resource blocks of the data sets each of which does not use any of a predetermined number of resource blocks, from among the plurality of data sets whereto the predetermined number of resource blocks are allocated in the time direction and the frequency direction; and a data redistribution section that redistributes a part of data that is distributed in resource blocks, with respect to the data sets whereto resource including empty resource blocks are allocated, in the vicinity of pilot symbols that are disposed within the empty resource blocks. It is possible to effectively utilize the function of all the pilot symbols and improve error rate characteristics.
摘要翻译： 向通信终端发送不同大小的多个数据组的复用信号的无线通信装置包括：空资源块检测部，其检测不使用预定数量的数据组的空资源块; 从在时间方向和频率方向上分配预定数量的资源块的多个数据组中的资源块， 以及重新分配在分配在资源块中的一部分数据的数据再分配部分，所述资源块相对于分配有包括空资源块的资源的数据集，在布置在空资源块内的导频符号附近。 可以有效利用所有导频符号的功能，提高误码率特性。
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公开(公告)号：US20120287855A1
公开(公告)日：2012-11-15
申请号：US13521859
申请日：2011-01-26
申请人： Takaaki Kishigami , Isamu Yoshii
发明人： Takaaki Kishigami , Isamu Yoshii
IPC分类号： H04W4/00
CPC分类号： H04L1/0071 , H04L1/007
摘要： A high error correction capability is kept while reducing a processing delay in application of the ECC in a multi-radio. A wireless communication device for performing data transmission by using a plurality of radio systems RAT1 and RAT2 includes, in a GLL 100 that absorbs a difference in physical layer and MAC layer among RATs, an encoder 301 that encodes transmission data, a multiplexer 302 that distributes encoded data in correspondence with the RAT1 and the RAT2, interleavers 303 and 304 that interleave a plurality of coded data that has been encoded and multiplexed, and a resource controller 305 that sets an interleaving size for each interleaving processing in the interleavers 303 and 304 based on a transmission delay difference between the RAT1 and the RAT2.
摘要翻译： 保持高纠错能力，同时减少在多无线电中应用ECC的处理延迟。 用于通过使用多个无线电系统RAT1和RAT2执行数据传输的无线通信设备包括：在吸收RAT中物理层和MAC层之间的差异的GLL 100中，编码传输数据的编码器301，分配 与RAT1和RAT2对应的编码数据，对交织器303和304进行交织的多个编码数据的交织器303和304以及基于交织器303和304中的每个交织处理设置交织大小的资源控制器305 关于RAT1和RAT2之间的传输延迟差异。
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49.发明授权Radio transmission device, radio reception device, radio transmission method, and radio reception method 有权无线发送装置，无线接收装置，无线发送方法以及无线接收方法公开(公告)号：US08300725B2
公开(公告)日：2012-10-30
申请号：US12377362
申请日：2007-11-29
申请人： Takaaki Kishigami , Hidenori Kayama
发明人： Takaaki Kishigami , Hidenori Kayama
IPC分类号： H04L27/00
CPC分类号： H04L25/0232 , H04L5/0023 , H04L5/0048
摘要： It is possible to provide a radio reception device, a radio transmission device, a radio reception method, and a radio transmission method which can improve the channel estimation accuracy and the reception quality. The radio reception device (200) includes: reception units (203, 204) which receive a data sequence added by a reference signal for channel estimation of a spatial propagation path at a predetermined interval; demodulation units (205, 206) which demodulate the data sequence; a channel estimation unit (208) which estimates a propagation path fluctuation state according to the reference signal in the data sequence and outputs a channel estimation value obtained by interpolating or extrapolating the data sequence; and a decoding processing unit (210) which decodes the data sequence by using the interpolated or extrapolated channel estimation value.
摘要翻译： 可以提供能够提高信道估计精度和接收质量的无线接收装置，无线发送装置，无线接收方法以及无线发送方法。 无线电接收装置（200）包括：接收单元（203,204），其以预定间隔接收由参考信号添加的用于信道估计的空间传播路径的数据序列; 解调单元（205,206），其解调所述数据序列; 信道估计单元，根据数据序列中的参考信号估计传播路径波动状态，并输出通过内插或外推数据序列获得的信道估计值; 以及解码处理单元，其通过使用内插或外插的信道估计值对数据序列进行解码。
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公开(公告)号：US20120120907A1
公开(公告)日：2012-05-17
申请号：US13386605
申请日：2010-07-08
申请人： Takaaki Kishigami
发明人： Takaaki Kishigami
IPC分类号： H04W72/04
CPC分类号： H04B7/0697 , H04B7/0632 , H04B7/0634 , H04B17/382 , H04L1/0025 , H04L1/0063 , H04L1/08 , H04L5/0007 , H04L5/0023 , H04L5/0037 , H04L5/0044 , H04L5/0048 , H04L5/0051 , H04L5/006 , H04W52/325 , H04W72/0446 , H04W72/0453 , H04W72/046 , H04W88/08
摘要： A bias of reception qualities between spatial streams to a plurality of terminal devices is suppressed in a multiuser MIMO transmission. A wireless communication device according to the invention is one for performing a spatial multiplexing transmission to the plurality of terminal devices, that includes an additional data area setting section that allocates, as an additional data area, a part of a resource allocation area to which no data addressed to each terminal device of the plurality of terminal devices is allocated among resource allocation areas for the spatial multiplexing transmission which are allocated to each terminal device of the plurality of terminal devices, an additional data generator that generates additional data corresponding to the additional data area allocated by the additional data area setting section, and a transmitter that transmits the data which is addressed to each of the plurality of terminal devices and the additional data.
摘要翻译： 在多用户MIMO传输中抑制了到多个终端设备的空间流之间的接收质量的偏差。 根据本发明的无线通信设备是用于对多个终端设备执行空间复用传输的设备，其包括附加数据区域设置部分，该附加数据区域设置部分将作为附加数据区域的资源分配区域的一部分 将分配给多个终端设备中的每个终端设备的数据分配给分配给多个终端设备中的每个终端设备的空间复用传输的资源分配区域中，附加数据生成器生成对应于附加数据的附加数据 由附加数据区域设置部分分配的区域以及发送寻址到多个终端设备中的每一个的数据和附加数据的发送器。
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