公开(公告)号：US20090279419A1

公开(公告)日：2009-11-12

申请号：US12445208

申请日：2007-10-10

申请人： Shimpei To ,  Yasuhiro Hamaguchi ,  Hideo Namba

发明人： Shimpei To ,  Yasuhiro Hamaguchi ,  Hideo Namba

IPC分类号： H04J11/00 ,  H04B7/00

CPC分类号： H04L1/0026 ,  H04L1/0029 ,  H04L1/003 ,  H04L5/0007

摘要： To efficiently compress the information amount for feedback when a communication apparatus sends back a result of performing discrete cosine transform on the reception quality information to a communication apparatus of a communicating destination. In a communication apparatus for transmitting feedback information generated based on a plurality of reception quality information to a communicating destination apparatus, the feedback information is a result of performing discrete cosine transform on the plurality of reception quality information, and performing respective different quantization on signal components of at least a group of samples among signal components of a plurality of samples obtained by the discrete cosine transform.

摘要翻译： 当通信装置将对接收质量信息执行离散余弦变换的结果返回到通信目的地的通信装置时，有效地压缩用于反馈的信息量。 在将通过多个接收质量信息生成的反馈信息发送到通信目的地装置的通信装置中，反馈信息是对多个接收质量信息进行离散余弦变换的结果，对信号成分进行各种不同的量化 通过离散余弦变换获得的多个样本的信号分量中的至少一组样本。

公开(公告)号：US08843149B2

公开(公告)日：2014-09-23

申请号：US12668403

申请日：2008-07-07

申请人： Shimpei To ,  Yasuhiro Hamaguchi ,  Hideo Namba ,  Minoru Kubota

发明人： Shimpei To ,  Yasuhiro Hamaguchi ,  Hideo Namba ,  Minoru Kubota

IPC分类号： H04W72/00 ,  H04W24/00 ,  H04W36/00 ,  H04B7/00 ,  H04W4/00 ,  H04J3/00 ,  H04J1/00 ,  H04B7/208

CPC分类号： H04W72/048 ,  H04L5/0007 ,  H04L5/003 ,  H04L5/0039 ,  H04L5/0042 ,  H04L5/0044 ,  H04L5/0064 ,  H04L5/0069 ,  H04L5/0075 ,  H04L5/0085 ,  H04L27/2601 ,  H04L27/2602 ,  H04L27/2614 ,  H04L27/2636

摘要： Consecutive subcarriers are reserved, and the reserved consecutive subcarriers are properly allocated to a terminal. The invention is a scheduling method that allocates, within an available band, a block composed of one or more subcarriers and used for signal transmission by a communication terminal being a destination of communication, and the method includes the steps of selecting (S208), with a higher priority, communication terminals having different number of the subcarriers composing the block as simultaneously communicating terminals that perform signal transmission simultaneously, and allocating (S214) the block for use by the simultaneously communicating terminals within the available band.

摘要翻译： 连续副载波被保留，并且保留的连续子载波被适当地分配给终端。 本发明是一种在可用频带内分配由作为通信目的地的通信终端用于由一个或多个子载波组成的块并用于信号传输的调度方法，该方法包括以下步骤：（S208）， 较高优先级，具有不同数量的构成该块的子载波的通信终端作为同时进行信号传输的同时通信终端，并且分配（S214）由可用频带内的同时通信终端使用的块。

公开(公告)号：US08699319B2

公开(公告)日：2014-04-15

申请号：US12673340

申请日：2008-08-13

申请人： Kazunari Yokomakura ,  Yasuhiro Hamaguchi ,  Shimpei To ,  Minoru Kubota ,  Hideo Namba ,  Seiichi Sampei ,  Shinichi Miyamoto ,  Shinsuke Ibi

发明人： Kazunari Yokomakura ,  Yasuhiro Hamaguchi ,  Shimpei To ,  Minoru Kubota ,  Hideo Namba ,  Seiichi Sampei ,  Shinichi Miyamoto ,  Shinsuke Ibi

IPC分类号： H04J11/00

CPC分类号： H04W72/0453 ,  H04L5/0007 ,  H04L5/0026 ,  H04L5/0037 ,  H04L5/0044 ,  H04L25/0204 ,  H04L25/022 ,  H04L25/0242 ,  H04L25/03159 ,  H04L25/03171 ,  H04L25/03318 ,  H04L27/2607 ,  H04L27/2615 ,  H04L2025/03414 ,  H04L2025/03426 ,  H04W72/0446

摘要： A base station device may include, but is not limited to: a mapping unit; and at least one reception antenna. The mapping unit is configured to assign a plurality of first subcarriers to a first communication device, and assign a part of the plurality of first subcarriers to at least one other communication device. The at least one reception antenna is configured to receive from one of the first communication device and the at least one other communication device, a plurality of frequency signals allocated to the plurality of first subcarriers. Each of the plurality of frequency signals is converted from coded transmission data of the one of the first communication device and the at least one other communication device.

摘要翻译： 基站装置可以包括但不限于：映射单元; 和至少一个接收天线。 映射单元被配置为向第一通信设备分配多个第一子载波，并且将多个第一子载波的一部分分配给至少一个其他通信设备。 所述至少一个接收天线被配置为从所述第一通信设备和所述至少一个其他通信设备中的一个接收分配给所述多个第一子载波的多个频率信号。 多个频率信号中的每一个从第一通信设备和至少一个其他通信设备中的一个的编码传输数据转换。

公开(公告)号：US20130286949A1

公开(公告)日：2013-10-31

申请号：US13989516

申请日：2011-11-24

申请人： Hiromichi Tomeba ,  Shimpei To ,  Takashi Onodera ,  Hideo Namba ,  Hiroshi Nakano ,  Alvaro Ruiz Delgado

发明人： Hiromichi Tomeba ,  Shimpei To ,  Takashi Onodera ,  Hideo Namba ,  Hiroshi Nakano ,  Alvaro Ruiz Delgado

IPC分类号： H04W72/04 ,  H04B7/04

CPC分类号： H04W72/0406 ,  H04B7/0452 ,  H04B7/0626 ,  H04L25/0204 ,  H04L25/0224 ,  H04L25/03343 ,  H04L25/03891 ,  H04L2025/03426 ,  H04W48/16 ,  H04W52/42 ,  H04W88/02 ,  H04W88/08

摘要： A wireless communication system includes a base station apparatus having a plurality of antennas and a plurality of mobile station apparatuses each having, at least, one antenna. The base station apparatus acquires channel state information of the plurality of mobile station apparatuses, based on any one of a plurality of different channel state information formats, and, separately precodes data signals addressed to the plurality of mobile station apparatuses based on the channel state information, and spatially multiplexes and transmits the precoded signals. The mobile station apparatus receives the precoded signals and detects a desired data signal from the multiplexed signals addressed to mobile station apparatuses, based on the channel state information. With this scheme, it is possible to realize a new spatial multiplexing technology that enables a plurality of mobile station apparatuses using different CSI feedback schemes to be spatially multiplexed on the same wireless resource in the downlink MU-MIMO transmission.

摘要翻译： 无线通信系统包括具有多个天线的基站装置和至少具有一个天线的多个移动台装置。 基站装置基于多种不同的信道状态信息格式中的任何一种来获取多个移动台装置的信道状态信息，并且基于信道状态信息分别对寻址到多个移动台装置的数据信号进行预编码 ，并空间复用并传输预编码信号。 移动站装置根据信道状态信息接收预编码信号，并从寻址到移动台装置的复用信号中检测出期望的数据信号。 利用该方案，可以实现在下行链路MU-MIMO传输中使能使用不同CSI反馈方案的多个移动台装置在同一无线资源上进行空间多路复用的新的空间复用技术。

公开(公告)号：US08494080B2

公开(公告)日：2013-07-23

申请号：US12809528

申请日：2008-12-19

申请人： Kazunari Yokomakura ,  Yasuhiro Hamaguchi ,  Hideo Namba ,  Shimpei To

发明人： Kazunari Yokomakura ,  Yasuhiro Hamaguchi ,  Hideo Namba ,  Shimpei To

IPC分类号： H04B15/00

CPC分类号： H04L25/03159 ,  H04B17/309 ,  H04L1/0003 ,  H04L1/0013 ,  H04L1/0015 ,  H04L1/0036

摘要： A reception device which receives a signal transmitted by a transmission device which changes at least one of a modulation scheme and a coding rate. The reception device includes an equalization unit which equalizes a received signal in frequency domain, a reliability calculation unit which calculates the reliability of a transmitted bit from the received signal after equalization, a mutual information amount calculation unit which calculates a mutual information amount based on the reliability of the transmitted bit calculated by the reliability calculation unit, and a notification signal generation unit which sets at least one of a modulation scheme and a coding rate based on the mutual information amount calculated by the mutual information amount calculation unit to generate a signal to be reported to the transmission device.

摘要翻译： 一种接收由发送装置发送的信号的接收装置，该发送装置改变调制方式和编码率中的至少一个。 接收装置包括：均衡单元，其对频域中的接收信号进行均衡;可靠性计算单元，其从均衡后的接收信号中计算发送位的可靠性;互信息量计算单元，基于该信息量计算单元， 由可靠性计算单元计算的发送位的可靠性，以及通知信号生成单元，其基于由互信息量计算单元计算出的互信息量来设定调制方式和编码率中的至少一个，生成信号 报告给传输设备。

公开(公告)号：US08423862B2

公开(公告)日：2013-04-16

申请号：US12865977

申请日：2009-02-04

申请人： Kazunari Yokomakura ,  Yasuhiro Hamaguchi ,  Hideo Namba ,  Shimpei To

发明人： Kazunari Yokomakura ,  Yasuhiro Hamaguchi ,  Hideo Namba ,  Shimpei To

IPC分类号： H03M13/45

CPC分类号： H03M13/29 ,  H03M13/2957 ,  H03M13/2975 ,  H03M13/6331 ,  H04L1/0048 ,  H04L25/03171 ,  H04L2025/03414

摘要： An execution decision apparatus decides whether to execute a detection process for a turbo equalization apparatus which detects data before coding, by repeating processes performed on transmission data coded by error correction coding, by an equalization unit for compensating distortion by a propagation path and a decoding unit for performing an error correction process, and includes an equalization unit I/O characteristic acquisition unit which acquires an I/O characteristic of the equalization unit; a decoding unit I/O characteristic acquisition unit which acquires an I/O characteristic of the decoding unit; and a decision unit which decides whether to execute the detection process in the turbo equalization apparatus based on the I/O characteristic acquired for each of the equalization unit and the decoding unit.

摘要翻译： 执行决定装置判定是否执行用于检测编码之前的数据的Turbo均衡装置的检测处理，通过对通过传播路径补偿失真的均衡单元重复对通过纠错编码编码的发送数据执行的处理，以及解码单元 用于执行纠错处理，并且包括获取均衡单元的I / O特性的均衡单元I / O特性获取单元; 解码单元I / O特性获取单元，其获取解码单元的I / O特性; 以及决定单元，其基于对于每个均衡单元和解码单元获取的I / O特性来决定是否在Turbo均衡装置中执行检测处理。

公开(公告)号：US20110004803A1

公开(公告)日：2011-01-06

申请号：US12865977

申请日：2009-02-04

申请人： Kazunari Yokomakura ,  Yasuhiro Hamaguchi ,  Hideo Namba ,  Shimpei To

发明人： Kazunari Yokomakura ,  Yasuhiro Hamaguchi ,  Hideo Namba ,  Shimpei To

IPC分类号： H03M13/05 ,  G06F11/10

CPC分类号： H03M13/29 ,  H03M13/2957 ,  H03M13/2975 ,  H03M13/6331 ,  H04L1/0048 ,  H04L25/03171 ,  H04L2025/03414

摘要： An execution decision apparatus decides whether to execute a detection process for a turbo equalization apparatus which detects data before coding, by repeating processes performed on transmission data coded by error correction coding, by an equalization unit for compensating distortion by a propagation path and a decoding unit for performing an error correction process, and includes an equalization unit I/O characteristic acquisition unit which acquires an I/O characteristic of the equalization unit; a decoding unit I/O characteristic acquisition unit which acquires an I/O characteristic of the decoding unit; and a decision unit which decides whether to execute the detection process in the turbo equalization apparatus based on the I/O characteristic acquired for each of the equalization unit and the decoding unit.

摘要翻译： 执行决定装置判定是否执行用于检测编码之前的数据的Turbo均衡装置的检测处理，通过对通过传播路径补偿失真的均衡单元重复对通过纠错编码编码的发送数据执行的处理，以及解码单元 用于执行纠错处理，并且包括获取均衡单元的I / O特性的均衡单元I / O特性获取单元; 解码单元I / O特性获取单元，其获取解码单元的I / O特性; 以及决定单元，其基于对于每个均衡单元和解码单元获取的I / O特性来决定是否在Turbo均衡装置中执行检测处理。

公开(公告)号：US20100260251A1

公开(公告)日：2010-10-14

申请号：US12809553

申请日：2008-12-17

申请人： Kazunari Yokomakura ,  Yasuhiro Hamaguchi ,  Hideo Namba ,  Shimpei To

发明人： Kazunari Yokomakura ,  Yasuhiro Hamaguchi ,  Hideo Namba ,  Shimpei To

IPC分类号： H04L27/01

CPC分类号： H04L27/0008 ,  H04B17/336 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0015 ,  H04L1/20 ,  H04L25/022 ,  H04L25/03159 ,  H04L2025/03414 ,  H04L2025/03605

摘要： A reception device which receives a signal transmitted by a transmission device that changes at least one of a modulation scheme and a coding rate based on information reported from the reception device, the reception device includes an equalization unit which equalizes a received signal in a frequency domain, a signal-noise ratio measuring unit which measures a signal-noise ratio from the received signal after equalization, and a notification signal generation unit which sets at least one of a modulation scheme and a coding rate from the quality of reception and generates a signal to be reported to the transmission device.

摘要翻译： 一种接收装置，其接收由发送装置发送的信号，所述信号基于从所述接收装置报告的信息，改变调制方式和编码率中的至少一个，所述接收装置包括均衡部，其对频域中的接收信号进行均衡 信号噪声比测量单元，其从均衡后的接收信号中测量信噪比;以及通知信号生成单元，其根据接收质量设置调制方式和编码率中的至少一种，并产生信号 报告给传输设备。

公开(公告)号：US20100215080A1

公开(公告)日：2010-08-26

申请号：US12677742

申请日：2008-09-12

申请人： Yasuhiro Hamaguchi ,  Minoru Kubota ,  Hideo Namba ,  Shimpei Toh ,  Kazunari Yokomakura

发明人： Yasuhiro Hamaguchi ,  Minoru Kubota ,  Hideo Namba ,  Shimpei Toh ,  Kazunari Yokomakura

IPC分类号： H04B1/707

CPC分类号： H04B7/15 ,  H04B1/692 ,  H04B1/707 ,  H04B2201/70706 ,  H04J13/0044 ,  H04J13/20 ,  H04L5/0021 ,  H04L5/026 ,  H04L27/2615 ,  H04L27/2636 ,  H04L27/2647 ,  H04W72/0446

摘要： A transmission apparatus according to the present invention includes: an encoding section; a modulation section; a variable-SF spreading section that performs spreading with variable SF according to control information A from a control section; an IDFT section that performs IDFT on output from the spreading section; a GI inserting section; a parallel/serial conversion section that converts output from the GI inserting section into a serial data sequence; a digital/analog conversion section; and an RF section that transmits a signal from an antenna after converting the signal to a frequency band for analog signal transmission and controlling it to an appropriate transmission power. The control section is configured to generate control information A for determining the variable SF and input the information A to the variable-SF spreading section and the RF section. In control information A, SF is varied depending on transmission power required.

摘要翻译： 根据本发明的发送装置包括：编码部分; 调制部; 可变SF扩展部，其根据来自控制部的控制信息A，利用变量SF进行扩展; IDFT部分，用于在扩展部分的输出上执行IDFT; GI插入部分; 并行/串行转换部分，其将来自GI插入部分的输出转换为串行数据序列; 数字/模拟转换部分; 以及RF部，其在将信号转换成用于模拟信号传输的频带之后从天线发送信号，并将其控制到适当的发送功率。 控制部分被配置为产生用于确定变量SF并且将信息A输入到可变SF扩展部分和RF部分的控制信息A. 在控制信息A中，SF取决于所需的发射功率而变化。

公开(公告)号：US20090116592A1

公开(公告)日：2009-05-07

申请号：US12302249

申请日：2007-05-25

申请人： Hideo Namba ,  Yasuhiro Hamaguchi ,  Shimpei To

发明人： Hideo Namba ,  Yasuhiro Hamaguchi ,  Shimpei To

IPC分类号： H04L27/06

CPC分类号： H04L25/0232 ,  H04B17/309 ,  H04B17/391 ,  H04L25/0212 ,  H04L25/022

摘要： An extrapolation method to suppress degradation of characteristics of channel estimation is provided.A receiver 100 includes: a fast Fourier transform section (FFT unit) 101 for subjecting a multicarrier symbol modulated by a known code to fast Fourier transform so as to calculate first frequency information on each subcarrier; a division section for complex dividing the first frequency information with the known code so as to calculate second frequency information on each subcarrier; a subcarrier interpolation section 103, based on the second frequency information, for generating interpolation frequency information by calculating (1) an amplitude value at which the amplitude values of a plurality of pieces of information to be interpolated are identical and (2) one of the phase differences equal to a phase difference of signal points between two subcarriers as a phase difference of a plurality of pieces of information to be interpolated or a combination them, and interpolating the generated interpolation frequency information to second frequency information so as to calculate third frequency information; and an inverse fast Fourier transform section (IFFT unit) 104 for subjecting the third frequency information to inverse fast Fourier transform.

摘要翻译： 提供了一种抑制信道估计特性劣化的外推法。 接收机100包括：快速傅里叶变换部（FFT部）101，用于对由已知码进行调制的多载波符号进行快速傅里叶变换，以计算每个副载波的第一频率信息; 分割部分，用于利用所述已知码对所述第一频率信息进行复分频，以计算每个子载波的第二频率信息; 子载波插值部103，基于第二频率信息，通过计算（1）要插补的多条信息的振幅值相同的振幅值，生成插值频率信息，以及（2） 相位差等于两个子载波之间的信号点的相位差，作为要被内插的多条信息的相位差或将它们组合，并将生成的插值频率信息内插到第二频率信息，以便计算第三频率信息 ; 以及用于对第三频率信息进行快速傅里叶逆变换的逆快速傅立叶变换部（IFFT单元）104。