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。

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。

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。

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。

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。

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。

公开(公告)号：US20120033752A1

公开(公告)日：2012-02-09

申请号：US13265595

申请日：2010-02-17

申请人： Isamu Yoshii ,  Takaaki Kishigami

发明人： Isamu Yoshii ,  Takaaki Kishigami

IPC分类号： H04L27/28 ,  H04L27/00

CPC分类号： H04B7/0413 ,  H03M13/258 ,  H03M13/27 ,  H03M13/296 ,  H03M13/3988 ,  H03M13/6544 ,  H04L1/006 ,  H04L1/0071 ,  H04L27/2601

摘要： To lessen a disparity in stream mapping of transmission data when modulation data are mapped into a plurality of streams and when the plurality of streams are transmitted and received. In a wireless communication device, a stream mapper (14) that performs mapping into a plurality of streams sequentially maps a modulation symbol sequence output from a modulator (13) into a plurality of streams for each block output from a channel interleaver (12) that performs channel interleaving, such as sub-block interleaving. On this occasion, a stream mapping method is changed in predetermined unit commensurate with a block size; for instance, at each position of a sub-block length where sub-block interleaving is performed or at each position of a half sub-block length.

摘要翻译： 当调制数据映射到多个流中以及当多个流被发送和接收时，减少传输数据的流映射中的视差。 在无线通信设备中，执行到多个流的映射的流映射器（14）将从调制器（13）输出的调制符号序列顺序地映射到从信道交织器（12）输出的每个块的多个流中， 执行信道交织，例如子块交织。 在这种情况下，流映射方法以与块大小相称的预定单位改变; 例如，在执行子块交织的子块长度的每个位置处或在半个子块长度的每个位置处。

公开(公告)号：US08009656B2

公开(公告)日：2011-08-30

申请号：US12944552

申请日：2010-11-11

申请人： Takaaki Kishigami ,  Yoichi Nakagawa ,  Kentaro Miyano

发明人： Takaaki Kishigami ,  Yoichi Nakagawa ,  Kentaro Miyano

IPC分类号： H04W4/00 ,  H04J1/00 ,  H04B7/208 ,  H04B7/00 ,  H04B1/38 ,  H04M1/00

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。

公开(公告)号：US07940215B2

公开(公告)日：2011-05-10

申请号：US11961340

申请日：2007-12-20

申请人： Takaaki Kishigami ,  Takashi Fukagawa ,  Yasuaki Yuda ,  Keiji Takakusaki ,  Shoji Miyamoto

发明人： Takaaki Kishigami ,  Takashi Fukagawa ,  Yasuaki Yuda ,  Keiji Takakusaki ,  Shoji Miyamoto

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 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 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 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 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设备包括：分频带方向估计单元，用于通过计算由阵列天线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，来估计该方向，并根据确定的相关矩阵计算空间分布 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; 分割带阵列权重创建单元，用于为每个分割频带创建在估计方向上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，用于通过将所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。

公开(公告)号：US20090147834A1

公开(公告)日：2009-06-11

申请号：US11917792

申请日：2006-06-30

申请人： Takaaki Kishigami ,  Hiroshi Iwai

发明人： Takaaki Kishigami ,  Hiroshi Iwai

IPC分类号： H04B1/707 ,  H04B1/06 ,  H04M1/00

CPC分类号： H04B1/18 ,  H04B1/0458 ,  H04B2201/70701

摘要： An object of the invention is to stabilize the convergence operation at the automatic impedance matching time and ensure the reception quality in the convergence process in a fading environment in a radio communication apparatus which performs automatic impedance matching between an antenna and a Radio frequency section to decrease the impedance matching loss, for example, when the apparatus is brought close to a human body. A radio communication apparatus of the invention includes a Radio frequency section 3 which converts a received signal into a baseband signal, a variable impedance unit 2 which adjusts impedance between an antenna 1 and the Radio frequency section 3, a pilot signal extraction unit 4 which extracts a pilot signal from the baseband signal, a first channel compensation unit 5 which performs channel compensation using an output of the pilot signal extraction unit, an impedance control adequacy detection unit 7 which detects impedance control adequacy using an output of the first channel compensation unit, an impedance control unit 8 which controls the variable impedance unit 2 using an output of the impedance control adequacy detection unit, a second channel compensation unit 6 which performs channel compensation using the pilot signal, and a demodulation section 9 which performs the demodulation operation using an output of the second channel compensation unit.

摘要翻译： 本发明的一个目的是在自动阻抗匹配时间稳定收敛操作，并且确保在天线和射频部分之间进行自动阻抗匹配的无线电通信装置的衰落环境中的收敛过程中的接收质量降低 阻抗匹配损失，例如当该装置靠近人体时。 本发明的无线通信装置具有将接收信号转换为基带信号的射频部3，调整天线1与射频部3之间的阻抗的可变阻抗部2，提取出导频信号提取部4 来自基带信号的导频信号，使用导频信号提取单元的输出进行信道补偿的第一信道补偿单元5，使用第一信道补偿单元的输出来检测阻抗控制充分性的阻抗控制适合度检测单元7， 阻抗控制单元8，其使用阻抗控制充分性检测单元的输出来控制可变阻抗单元2;第二信道补偿单元6，其使用导频信号进行信道补偿;以及解调单元9，其使用 输出第二通道补偿单元。