公开(公告)号：US09178598B2

公开(公告)日：2015-11-03

申请号：US13884015

申请日：2011-08-29

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

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

IPC分类号： H04W4/00 ,  H04B7/06 ,  H04B7/04

CPC分类号： H04B7/0697 ,  H04B7/0478

摘要： In a codebook-based closed loop type MIMO, improvement for complexity in a mobile station apparatus, and reduction of amount of overhead needed for notification from the mobile station apparatus should be provided. A wireless transmission apparatus that includes a plurality of transmission antennas, performs precoding on a data signal for each of a plurality of reception apparatuses and spatially multiplexes and transmits the signal after the precoding. The wireless transmission apparatus performs sharing a codebook describing a plurality of linear filters associated with each other is shared with the each reception apparatus, and precoding on the data signal for each reception apparatus, based on a first linear filter that is extracted from the codebook in each reception apparatus based on the association and that is notified from each reception apparatus.

摘要翻译： 在基于码本的闭环型MIMO中，应提供移动台装置的复杂度的改善以及来自移动台装置的通知所需的开销量的减少。 一种包括多个发送天线的无线发送装置，对多个接收装置中的每一个对数据信号进行预编码，并对该预编码后的信号进行空间复用并发送。 基于从码本中提取出的第一线性滤波器，执行与各接收装置共享描述彼此相关联的多个线性滤波器的码本的无线传输装置，并对每个接收装置对数据信号进行预编码 每个接收装置基于该关联并从每个接收装置通知。

公开(公告)号：US09001724B2

公开(公告)日：2015-04-07

申请号：US13576866

申请日：2010-12-17

申请人： Hiroshi Nakano ,  Takashi Onodera ,  Kozue Hirata ,  Hiromichi Tomeba ,  Shimpei To

发明人： Hiroshi Nakano ,  Takashi Onodera ,  Kozue Hirata ,  Hiromichi Tomeba ,  Shimpei To

IPC分类号： H04L12/26 ,  H04J1/16 ,  G08C15/00 ,  G06F11/00 ,  G01R31/08 ,  H04B7/06 ,  H04J11/00 ,  H04L25/03 ,  H04W52/42

CPC分类号： H04L25/03343 ,  H04B7/0604 ,  H04B7/0697 ,  H04J11/0033 ,  H04L2025/03426 ,  H04W52/42

摘要： A multiplexed signal generator is configured to multiplex a signal addressed to a first reception device which has been subjected to a power suppression process of suppressing the power of the signal, and a signal addressed to a second reception device which is not subjected to the power suppression process.

摘要翻译： 复用信号发生器被配置为对寻址到已经经过抑制信号功率的功率抑制处理的第一接收装置的信号进行复用，以及寻址到不经受功率抑制的第二接收装置的信号 处理。

公开(公告)号：US20140204841A1

公开(公告)日：2014-07-24

申请号：US14239088

申请日：2012-08-13

申请人： Alvaro Ruiz Delgado ,  Takashi Onodera ,  Hiromichi Tomeba ,  Hiroshi Nakano ,  Minoru Kubota

发明人： Alvaro Ruiz Delgado ,  Takashi Onodera ,  Hiromichi Tomeba ,  Hiroshi Nakano ,  Minoru Kubota

IPC分类号： H04B7/04

CPC分类号： H04B7/0456 ,  H04B7/0452 ,  H04B7/0689 ,  H04L2025/03802

摘要： A wireless reception device is notified of whether a multi-user MIMO signal transmitted from a wireless transmission device has undergone linear precoding or non-linear precoding without increasing the amount of control information. A wireless transmission device having a plurality of transmit antennas 303, for transmitting spatially multiplexed signals to a plurality of wireless reception devices includes a group construction unit 307 configured to classify the wireless reception devices into a plurality of groups and to determine a precoding scheme for each of the groups, a selection unit 315 configured to select one group from among the groups, and a precoding unit 323 configured to precode transmit data addressed to each of wireless reception devices belonging to the selected group, using a precoding scheme determined for the selected group.

摘要翻译： 从无线发送装置发送的多用户MIMO信号是否已经经历了线性预编码或非线性预编码，而不增加控制信息量，通知无线接收装置。 具有用于将空间复用信号发送到多个无线接收装置的多个发送天线303的无线发送装置包括：组构建单元307，被配置为将无线接收装置分类为多个组，并且确定每个 组成的选择单元315，被配置为从组中选择一组;以及预编码单元323，被配置为使用为所选择的组确定的预编码方案来对寻址到​​属于所选择的组的无线接收装置中的每一个的发送数据进行预编码 。

公开(公告)号：US20140177751A1

公开(公告)日：2014-06-26

申请号：US14236125

申请日：2012-07-20

申请人： Hiromichi Tomeba ,  Takashi Onodera ,  Hiroshi Nakano ,  Alvaro Ruiz Delgado

发明人： Hiromichi Tomeba ,  Takashi Onodera ,  Hiroshi Nakano ,  Alvaro Ruiz Delgado

IPC分类号： H04L27/26

CPC分类号： H04L27/2626 ,  H04B7/0456 ,  H04B7/0617 ,  H04L1/00

摘要： More reduction of the amount of operation than in QRM-VP is realized while maintaining transmission performance that can be achieved by VP. A precoding apparatus 109 that performs preliminary processing on transmission data transmitted from a wireless transmission apparatus including a plurality of antennas to a wireless reception apparatus includes a linear filter generation section 301 that generates a linear filter on the basis of a result of estimation of a channel between an antenna unit 111 and the wireless reception apparatus, a signal conversion section 303 that expands perturbation term candidates of a perturbation vector to be added to a transmission data vector and a reference signal associated with the transmission data in a complex plane, and a perturbation vector search section 305 that searches for the perturbation vector to be added to the transmission data vector by performing a quadrant search on the basis of the perturbation term candidates and the reference signal expanded in the complex plane. A transmission signal vector is calculated by adding a found perturbation vector to the transmission data vector and multiplying the transmission data vector by the linear filter.

摘要翻译： 在保持VP可实现的传输性能的同时，实现了比QRM-VP中更多的操作量的减少。 对从包括多个天线的无线发送装置发送到无线接收装置的发送数据进行预处理的预编码装置109包括：线性滤波器生成部301，其基于信道的估计结果生成线性滤波器 天线单元111和无线接收装置之间的信号转换部303将复数平面中的发送数据相加的扰动矢量的扰动项候补和与发送数据相关联的参考信号扩展， 矢量搜索部305，其通过基于扰动项候选和在复平面中扩展的参考信号执行象限搜索来搜索要添加到发送数据矢量的扰动向量。 通过将发现的扰动矢量与发送数据矢量相加并将发送数据矢量乘以线性滤波器来计算发送信号矢量。

公开(公告)号：US20130136050A1

公开(公告)日：2013-05-30

申请号：US13700754

申请日：2011-05-13

申请人： Hiromichi Tomeba ,  Minoru Kubota ,  Takashi Onodera ,  Shimpei To ,  Kozue Hirata ,  Hiroshi Nakano

发明人： Hiromichi Tomeba ,  Minoru Kubota ,  Takashi Onodera ,  Shimpei To ,  Kozue Hirata ,  Hiroshi Nakano

IPC分类号： H04W24/02

CPC分类号： H04W24/02 ,  H04B7/0452 ,  H04J11/0033 ,  H04L1/0625 ,  H04L1/0656 ,  H04L25/4975 ,  H04L27/2601

摘要： To realize transmission performances equivalent to those of an MU-MIMO BLAST ZF-THP system without increasing a signal processing amount in a base station apparatus in a downlink MU-MIMO transmission system. A transmission apparatus is provided with a plurality of transmission antennas, generates a transmission signal addressed to each reception apparatus based on information indicating spatial correlation of channels to and from a plurality of reception apparatuses, space-multiplexes the generated each transmission signal in the same wireless resource, and transmits it to each reception apparatus. The transmission apparatus includes: an ordering determination part 601 which determines an order in which a transmission signal addressed to each reception apparatus is generated based on information indicating spatial correlation of channels; a linear filter generation part 603 which generates a linear filter based on the determined order; a THP part 605 which performs a THP process by using the determined order and the linear filter; and a linear filter multiplication part 607 which multiplies an output of the THP part 605 by the linear filter.

摘要翻译： 实现与MIMO-MIMO BLAST ZF-THP系统相当的传输性能，而不增加下行MU-MIMO传输系统中的基站装置中的信号处理量。 发送装置具有多个发送天线，基于表示与多个接收装置的频道的频道的空间相关性的信息，生成发往各接收装置的发送信号，对同一无线电中产生的各发送信号进行空间复用 资源，并将其发送到每个接收装置。 传输装置包括：排序确定部分601，其基于指示信道的空间相关性的信息来确定寻址到每个接收装置的发送信号的顺序; 线性滤波器生成部603，其基于所确定的次序生成线性滤波器; 通过使用确定的顺序执行THP处理的THP部件605和线性滤波器; 线性滤波器乘法部607，其将THP部605的输出与线性滤波器相乘。

公开(公告)号：US20130003641A1

公开(公告)日：2013-01-03

申请号：US13582374

申请日：2011-01-31

申请人： Hiroshi Nakano ,  Takashi Onodera ,  Shimpei To ,  Kozue Hirata ,  Hiromichi Tomeba

发明人： Hiroshi Nakano ,  Takashi Onodera ,  Shimpei To ,  Kozue Hirata ,  Hiromichi Tomeba

IPC分类号： H04W4/06 ,  H04W4/00

CPC分类号： H04B7/0452 ,  H04B7/024 ,  H04B7/0617 ,  H04B7/063 ,  H04B7/0658 ,  H04B17/24 ,  H04J11/0033 ,  H04L5/0007 ,  H04L5/0051 ,  H04L25/0224

摘要： Disclosed is a transmission device including a plurality of antennas for transmitting signals in the same channel at the same time point to a plurality of reception devices, characterized by including: a DRS generator configured to generate DRSs (dedicated reference signals) for the respective reception devices; a nonlinear spatial multiplexer configured to generate a nonorthogonal DRS by use of a first group of DRSs including at least one of the DRSs; and a transmitter configured to transmit a signal containing at least the nonorthogonal DRS.

摘要翻译： 公开了一种发送装置，包括：多个天线，用于在同一时间点向多个接收装置发送同一信道中的信号，其特征在于包括：DRS发生器，被配置为产生用于各个接收装置的DRS（专用参考信号） ; 配置成通过使用包括至少一个DRS的第一组DRS来生成非正交DRS的非线性空间多路复用器; 以及发射机，被配置为发送至少包含非正交DRS的信号。

公开(公告)号：US08249044B2

公开(公告)日：2012-08-21

申请号：US12282144

申请日：2007-03-06

申请人： Takashi Onodera ,  Toshizo Nogami ,  Naoki Okamoto

发明人： Takashi Onodera ,  Toshizo Nogami ,  Naoki Okamoto

IPC分类号： H04J1/00

CPC分类号： H04L1/0029 ,  H04L1/0026

摘要： To generate notification information for improving accuracy of channel quality information reconstructed based on a difference in notifying using the difference in channel quality information between channels. A notification information generating apparatus 400 has a notification information table 401 that stores a plurality of difference-value candidate values each indicating a difference between two pieces of channel quality information as candidate values for the notification information, a reconstructing section 403 that generates a reconstruction value using the notification information generated based on the channel quality information of a first channel, and a selecting section 402 which receives the channel quality information of a second channel differing from the first channel, selects a single candidate value from the candidate values for the notification information based on the channel quality information of the second channel and the reconstruction value, and generates the notification information based on the selected candidate value.

摘要翻译： 为了生成用于提高基于通过使用信道之间的信道质量信息的差异通知的差异而重建的信道质量信息的准确性的通知信息。 通知信息生成装置400具有通知信息表401，该通知信息表401存储多个差值候选值，每个差值表示两条信道质量信息之间的差作为通知信息的候选值，重建部403生成重建值 使用基于第一信道的信道质量信息生成的通知信息，以及接收与第一信道不同的第二信道的信道质量信息的选择部402，从通知信息的候选值中选择单个候选值 基于第二信道的信道质量信息和重构值，并且基于所选择的候选值生成通知信息。

公开(公告)号：US20120071104A1

公开(公告)日：2012-03-22

申请号：US13321390

申请日：2010-04-14

申请人： Takashi Onodera ,  Hiroshi Nakano ,  Kozue Hirata ,  Minoru Kubota

发明人： Takashi Onodera ,  Hiroshi Nakano ,  Kozue Hirata ,  Minoru Kubota

IPC分类号： H04B15/00 ,  H04B1/10 ,  H04B1/04

CPC分类号： H04L27/34 ,  H04L1/0034 ,  H04L1/0035

摘要： With respect to a wireless communication system comprising a transmitter device 200, which is equipped with a function for performing inflated lattice precoding (ILP) on transmission data, and a receiver device 300, which receives a signal transmitted from the transmitter device and restores data, there is adopted a feature wherein “coefficient α” which is required when the transmitter device 200 performs the above-mentioned ILP, and which is also required when the receiver device performs data restoration, is uniquely derived using information relating to an MCS (modulation parameter) that is applied with respect to the wireless communication system (more specifically, a feature wherein a “coefficient table part,” which uniquely maps MCS information to coefficient α, is provided at both the transmitter device and the receiver device, and wherein coefficient α required at both the transmitter device and the receiver device is derived using this “coefficient table part”), thereby evading having to exchange information relating to “coefficient α” between the transmitter device and the receiver device.

摘要翻译： 对于包括发送装置200的无线通信系统，其具有对发送数据执行充气格子预编码（ILP）功能的接收装置300，接收装置300接收从发送装置发送的信号并恢复数据， 采用了当发射机装置200执行上述ILP所需的并且当接收机装置执行数据恢复时也需要的“系数α”的特征，使用与MCS（调制参数 ）（更具体地，其中在发送机设备和接收机设备两者处提供唯一映射MCS信息到系数α的“系数表部分”的特征，其中系数α 在发射机设备和接收机设备上都需要使用该“系数表部分”）， 从而避免必须交换与发射机设备和接收机设备之间的“系数α”有关的信息。

公开(公告)号：US20120045995A1

公开(公告)日：2012-02-23

申请号：US13266065

申请日：2010-04-16

申请人： Hiroshi Nakano ,  Minoru Kubota ,  Takashi Onodera ,  Kozue Hirata

发明人： Hiroshi Nakano ,  Minoru Kubota ,  Takashi Onodera ,  Kozue Hirata

IPC分类号： H04B15/00

CPC分类号： H04J11/0036 ,  H04J11/004 ,  H04L5/0023 ,  H04L27/2626 ,  H04L27/2647

摘要： An interference suppression wireless communication device to be used in an interference suppression wireless communication system, includes: a variance acquirer configured to acquire a variance of channel estimation errors associated with a channel for a transmission signal of the interference suppression wireless communication device, a variance of channel estimation errors associated with a channel for an interference signal, and a variance of noise included in the transmission signal when the transmission signal is received; and a coefficient calculator configured to calculate, based on the variances acquired by the variance acquirer, a coefficient by which the interference signal to be subtracted from the transmission signal is multiplied.

摘要翻译： 在干扰抑制无线通信系统中使用的干扰抑制无线通信装置包括：差分获取装置，被配置为获取与干扰抑制无线通信装置的发送信号的信道相关联的信道估计误差的方差， 当接收到发送信号时，与干扰信号的信道相关的信道估计误差和包括在发送信号中的噪声的方差; 以及系数计算器，被配置为基于由方差获取器获取的方差来计算要从传输信号中减去的干扰信号被乘以的系数。

公开(公告)号：US08094739B2

公开(公告)日：2012-01-10

申请号：US12161660

申请日：2007-01-16

申请人： Toshizo Nogami ,  Takashi Onodera

发明人： Toshizo Nogami ,  Takashi Onodera

IPC分类号： H04L27/28

CPC分类号： H04L1/0015 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L5/0007 ,  H04L5/0042 ,  H04L5/0046 ,  H04L5/006

摘要： A modulation parameter selecting method in a system including, as a scheduler portion, a temporal coding rate determining portion that determines a coding rate temporarily, a temporal modulation rate determining portion for selecting a modulation method that satisfies required quality and has a maximum transmission rate in each channel, under the temporarily determined coding rate, and a transmission rate computing portion that calculates a transmission rate from the coding rate determined at the temporal coding rate determining portion and the modulation method in each of the channels selected at the temporal modulation method determining portion, in which processing from the temporal coding rate determining portion to the transmission rate computing portion is performed repeatedly with respect to selectable coding rates and a coding rate with a maximum transmission rate and a modulation method in each of the channels are determined.

摘要翻译： 一种系统中的调制参数选择方法，包括作为调度器部分的临时确定编码率的时间编码率确定部分，用于选择满足所需质量并且具有最大传输速率的调制方法的时间调制速率确定部分 每个信道以临时确定的编码率，以及传输速率计算部分，其从在时间编码率确定部分确定的编码率和在时间调制方法确定部分中选择的每个信道中的调制方法计算传输速率 其中，确定从时间编码率确定部分到传输速率计算部分的处理关于可选编码速率重复执行，并确定每个信道中具有最大传输速率和调制方法的编码率。