公开(公告)号：US20120076227A1

公开(公告)日：2012-03-29

申请号：US13203028

申请日：2010-01-29

申请人： Hidekazu Taoka ,  Mamoru Sawahashi

发明人： Hidekazu Taoka ,  Mamoru Sawahashi

IPC分类号： H04B7/02

CPC分类号： H04L5/0023 ,  H04B7/0632 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0016 ,  H04L1/0026

摘要： Provided is a radio base station apparatus capable of selecting an optimal modulation and coding scheme for each transmission stream easily. The radio base station apparatus has a CQI information decoder (101) configured to decode CQIs of plural downlink transmission streams and an MCS selector (102) that has an N-dimensional table (two-dimensional reference table (1021)) in accordance with the number N of downlink transmission streams where combinations of modulation and coding scheme between the plural downlink transmission streams are defined in accordance with each of the CQIs of the downlink transmission streams and is configured to select from the combinations of modulation and coding scheme for the downlink transmission streams based on each of the CQIs of the downlink transmission streams decoded by the CQI information decoder (101).

摘要翻译： 提供一种能够容易地为每个传输流选择最佳调制和编码方案的无线电基站装置。 无线基站装置具有：CQI信息解码器（101），被配置为对多个下行链路发送流的CQI进行解码;以及MCS选择器（102），其具有N维表（二维参照表（1021）） N个下行链路传输流，其中根据下行链路传输流的每个CQI来定义多个下行链路传输流之间的调制和编码方案的组合，并且被配置为从用于下行链路传输的调制和编码方案的组合中进行选择 基于由CQI信息解码器（101）解码的下行链路传输流中的每一个CQI的流。

公开(公告)号：US20100296463A1

公开(公告)日：2010-11-25

申请号：US12680594

申请日：2008-09-26

申请人： Hidekazu Taoka ,  Mamoru Sawahashi ,  Nobuhiko Miki

发明人： Hidekazu Taoka ,  Mamoru Sawahashi ,  Nobuhiko Miki

IPC分类号： H04W72/04

CPC分类号： H04L1/0073 ,  H04B7/0456 ,  H04B7/0639 ,  H04L1/06

摘要： A user apparatus in a mobile communications system is disclosed. The user apparatus includes a unit which receives, from a base station apparatus, a downlink control signal including information for allocating a radio resource; a unit which determines, depending on a channel status, a pre-encoding matrix indicator (PMI) which indicates a pre-encoding matrix to be applied to multiple antennas of the base station apparatus; and a unit which transmits, to the base station apparatus, an uplink signal including the PMI, wherein, if the radio resource is allocated to a physical uplink shared channel of the user apparatus, the PMI is transmitted using a part of the radio resource, and, wherein, if the radio resource is not allocated to the physical uplink shared channel of the user apparatus, the PMI is transmitted in a physical uplink control channel which is allocated, in a fixed manner, to the user apparatus.

摘要翻译： 公开了一种移动通信系统中的用户装置。 用户装置包括从基站装置接收包括用于分配无线资源的信息的下行链路控制信号的单元; 根据信道状态确定指示要应用于所述基站装置的多个天线的预编码矩阵的预编码矩阵指示符（PMI）的单元; 以及向所述基站装置发送包括所述PMI的上行链路信号的单元，其中，如果所述无线资源被分配给所述用户装置的物理上行链路共享信道，则使用所述无线资源的一部分来发送所述PMI， 并且其中，如果所述无线资源未被分配给所述用户装置的所述物理上行链路共享信道，则在以固定方式分配给所述用户装置的物理上行链路控制信道中发送所述PMI。

公开(公告)号：US20100183085A1

公开(公告)日：2010-07-22

申请号：US12663980

申请日：2008-06-16

申请人： Hidekazu Taoka ,  Nobuhiko Miki ,  Mamoru Sawahashi

发明人： Hidekazu Taoka ,  Nobuhiko Miki ,  Mamoru Sawahashi

IPC分类号： H04K1/10

CPC分类号： H04B7/0417 ,  H04B7/0634 ,  H04B7/0639 ,  H04B7/0656 ,  H04B7/0665

摘要： A disclosed base station apparatus is capable of communicating with a user equipment terminal in a multi-input multi-output (MIMO) mobile communication system using Pre-coding. The base station apparatus includes a receiving unit receiving a Pre-coding Matrix Indicator (PMI) indicating a specific Pre-coding matrix, a determination unit determining a value of a flag indicator indicating whether the Pre-coding matrix specified in the PMI is to be used for downlink communications, a control signal generation unit generating a downlink control signal including at least the flag indicator, and a transmission unit transmitting a signal including the downlink control signal in downlink.

摘要翻译： 所公开的基站装置能够使用预编码与多输入多输出（MIMO）移动通信系统中的用户设备终端进行通信。 基站装置包括接收单元，接收指示特定预编码矩阵的预编码矩阵指示符（PMI），确定单元确定指示PMI中指定的预编码矩阵是否为 用于下行链路通信的控制信号生成单元，生成至少包括标志指示符的下行链路控制信号的控制信号生成单元，以及在下行链路中发送包括下行链路控制信号的信号的发送单元。

公开(公告)号：US20090052571A1

公开(公告)日：2009-02-26

申请号：US12187087

申请日：2008-08-06

申请人： Jingxiu Liu ,  Xiaoming She ,  Lan Chen ,  Hidekazu Taoka

发明人： Jingxiu Liu ,  Xiaoming She ,  Lan Chen ,  Hidekazu Taoka

IPC分类号： H04B7/02

CPC分类号： H04L25/03343 ,  H04B7/0417 ,  H04B7/0671 ,  H04L5/0023 ,  H04L2025/03426

摘要： A method of data processing includes the steps of: dividing user terminals into groups based on channel attributes and service requirements of the user terminals and setting a precoding code word and a cyclic delay for each of the groups; and determining which group a user terminal corresponding to the data to be processed belongs to and processing the data to be processed by the Cyclic Delay Diversity (CDD) precoding based on the precoding code word and the cyclic delay of the group. A data processing apparatus includes a grouping module and a CDD preceding module. By the method and apparatus above, the signal quality in the MIMO system can be improved.

摘要翻译： 数据处理方法包括以下步骤：根据用户终端的信道属性和业务需求将用户终端划分成组，并为每个组设置预编码码字和循环延迟; 并且确定与要处理的数据相对应的用户终端属于哪个组，并且基于预编码码字和该组的循环延迟来处理由循环延迟分集（CDD）预编码处理的数据。 数据处理装置包括分组模块和CDD在前模块。 通过上述方法和装置，可以提高MIMO系统中的信号质量。

公开(公告)号：US20050053123A1

公开(公告)日：2005-03-10

申请号：US10931996

申请日：2004-09-02

申请人： Kenichi Higuchi ,  Hidekazu Taoka ,  Takashi Kataoka ,  Mamoru Sawahashi

发明人： Kenichi Higuchi ,  Hidekazu Taoka ,  Takashi Kataoka ,  Mamoru Sawahashi

IPC分类号： H01Q21/00 ,  H01Q3/26 ,  H04B7/06 ,  H04B7/08 ,  H04B7/10 ,  H04B7/26 ,  H04B1/707

CPC分类号： H04B7/086 ,  H01Q3/2605 ,  H04B7/0617 ,  H04B7/0695 ,  H04B7/088

摘要： A wireless communication apparatus comprises an array antenna configured to receive a signal at multiple antenna elements; a DoA estimation unit configured to estimate directions of arrival of multiple paths contained in the received signal; an angle spread estimation unit configured to estimate an angle spread of the multiple paths; a first weighting calculation unit configured to estimate a common set of weighting factors for all the paths; a second weighting calculation unit configured to estimate an individual set of weighting factors for each of the multiple paths based on the estimated directions of arrival of the paths; a weighting unit configured to weight the received signal by multiplying the received signal by one of the common set of weighting factors or individual set of weighting factor; and a demodulator configured to demodulate the weighted signal.

摘要翻译： 无线通信装置包括被配置为在多个天线元件处接收信号的阵列天线; DoA估计单元，被配置为估计包含在接收信号中的多个路径的到达方向; 角度扩展估计单元，被配置为估计所述多个路径的角度扩展; 第一加权计算单元，被配置为估计用于所有路径的公共加权因子集合; 第二加权计算单元，被配置为基于估计的路径的到达方向来估计多个路径中的每一个的各个加权因子集合; 加权单元，被配置为通过将所接收的信号乘以公共加权因子集合或单独的一组加权因子来加权所接收的信号; 以及解调器，被配置为解调所述加权信号。

公开(公告)号：US08861630B2

公开(公告)日：2014-10-14

申请号：US13505797

申请日：2010-10-21

申请人： Hidekazu Taoka ,  Mamoru Sawahashi

发明人： Hidekazu Taoka ,  Mamoru Sawahashi

IPC分类号： H04B7/02 ,  H04L27/06 ,  H04B7/04 ,  H04L25/03 ,  H04J11/00

CPC分类号： H04J11/004 ,  H04B7/0413 ,  H04L25/0328 ,  H04L25/03898 ,  H04L2025/03414

摘要： The present invention provides a reception apparatus and reception method that reduce the amount of operation processing, reduce the processing delay and allow high signal separation performance. The reception method of the present invention is characterized by receiving signals including a plurality of codewords transmitted by a plurality of streams and performing maximum likelihood detection-based signal separation in the same codeword in the received signals while performing continuous interference canceller-based signal separation between different codewords.

摘要翻译： 本发明提供了减少操作处理量，减少处理延迟并允许高信号分离性能的接收装置和接收方法。 本发明的接收方法的特征在于，接收包括由多个流发送的多个码字的信号，并且在接收信号的同一码字中执行基于最大似然检测的信号分离，同时执行基于连续干扰消除器的信号间隔 不同的码字。

公开(公告)号：US08711682B2

公开(公告)日：2014-04-29

申请号：US13303420

申请日：2011-11-23

申请人： Petra Weitkemper ,  Hidekazu Taoka

发明人： Petra Weitkemper ,  Hidekazu Taoka

IPC分类号： H04L12/26

CPC分类号： H04L1/1819 ,  H04L1/0025 ,  H04L1/0026 ,  H04L1/1825 ,  H04L2001/0097

摘要： An approach for resource allocation in a wireless communication network including a sender, a relay station and a receiver in case of a retransmission of information from the relay station to the receiver is described, wherein a resource necessary for retransmission is determined on the basis of the relayed channel and the relay function.

摘要翻译： 描述了在从中继站向接收机重传信息的情况下在包括发送方，中继站和接收方的无线通信网络中的资源分配的方法，其中，基于所述中继站确定重传所需的资源 中继通道和继电器功能。

公开(公告)号：US08422574B2

公开(公告)日：2013-04-16

申请号：US12663980

申请日：2008-06-16

申请人： Hidekazu Taoka ,  Nobuhiko Miki ,  Mamoru Sawahashi

发明人： Hidekazu Taoka ,  Nobuhiko Miki ,  Mamoru Sawahashi

IPC分类号： H04K1/10

CPC分类号： H04B7/0417 ,  H04B7/0634 ,  H04B7/0639 ,  H04B7/0656 ,  H04B7/0665

摘要： A disclosed base station apparatus is capable of communicating with a user equipment terminal in a multi-input multi-output (MIMO) mobile communication system using Pre-coding. The base station apparatus includes a receiving unit receiving a Pre-coding Matrix Indicator (PMI) indicating a specific Pre-coding matrix, a determination unit determining a value of a flag indicator indicating whether the Pre-coding matrix specified in the PMI is to be used for downlink communications, a control signal generation unit generating a downlink control signal including at least the flag indicator, and a transmission unit transmitting a signal including the downlink control signal in downlink.

摘要翻译： 所公开的基站装置能够使用预编码与多输入多输出（MIMO）移动通信系统中的用户设备终端进行通信。 基站装置包括接收单元，接收指示特定预编码矩阵的预编码矩阵指示符（PMI），确定单元确定指示PMI中指定的预编码矩阵是否为 用于下行链路通信的控制信号生成单元，生成至少包括标志指示符的下行链路控制信号的控制信号生成单元，以及在下行链路中发送包括下行链路控制信号的信号的发送单元。

公开(公告)号：US20130034187A1

公开(公告)日：2013-02-07

申请号：US13579444

申请日：2011-02-09

申请人： Hidekazu Taoka ,  Kenichi Higuchi

发明人： Hidekazu Taoka ,  Kenichi Higuchi

IPC分类号： H04L25/49

CPC分类号： H04B7/0626 ,  H04B7/024 ,  H04B7/0452 ,  H04B7/0697

摘要： To reduce interference among mobile station apparatuses even when the CSI is not transmitted from all mobile station apparatuses as feedback in an environment where Joint Transmission is performed, a channel matrix is generated which is comprised of the CSI from a plurality of mobile station apparatuses (UEs) undergoing spatial multiplexing for each of coordinated cells, and based on the channel matrix, precoding weights are generated successively starting from a cell having the highest number of mobile station apparatuses (UEs) that transmit the CSI as feedback. When data transmission is targeted for a mobile station apparatus (UE#1) that transmits the CSI as feedback as well as a weight generation target cell that is a target for generation of precoding weights, precoding weights are generated so as not to suppress interference on a mobile station apparatus (UE#2) that transmits the CSI as feedback as well as the weight generation target cell, while suppressing interference on mobile station apparatuses (UE#3, UE#4) that do not transmit the CSI as feedback except the weight generation target cell.

摘要翻译： 为了减少移动台装置之间的干扰，即使作为在执行联合发送的环境中的反馈而从所有移动台装置发送CSI，也生成包括来自多个移动台装置（UE）的CSI的信道矩阵 ）对于每个协作小区进行空间复用，并且基于信道矩阵，从具有发送CSI作为反馈的具有最多数量的移动站装置（UE）的小区连续生成预编码权重。 当将发送CSI作为反馈的移动站装置（UE＃1）和作为生成预编码权重的目标的权重生成目标小区的数据发送目标时，生成预编码权重，以便不抑制对 在不发送CSI的移动台装置（UE＃3，UE＃4）的干扰的情况下，作为反馈而发送CSI的移动站装置（UE＃2）以及加权生成目标小区，除了 体重产生靶细胞。

公开(公告)号：US20130034068A1

公开(公告)日：2013-02-07

申请号：US13580160

申请日：2011-02-23

申请人： Hidekazu Taoka ,  Nobuhiko Miki ,  Yoshihisa Kishiyama

发明人： Hidekazu Taoka ,  Nobuhiko Miki ,  Yoshihisa Kishiyama

IPC分类号： H04W72/08

CPC分类号： H04W72/0453 ,  H04L5/001 ,  H04L5/0044 ,  H04L5/0053 ,  H04L5/006

摘要： Wideband transmission is performed efficiently using spectrum aggregation. When performing information transmission using spectrum aggregation that aggregates frequency spectra which are non-contiguous and in different frequency bands, first information requiring communication quality is allocated to an anchor spectrum with small path loss among different frequency spectra used for information transmission and transmitted to a mobile station apparatus (UE), and second information requiring lower communication quality than the first information is allocated to a payload spectrum having large path loss and transmitted to the mobile station apparatus (UE).

摘要翻译： 使用频谱聚合有效地进行宽带传输。 当使用聚合不连续和不同频带的频谱的频谱聚合进行信息传输时，需要通信质量的第一信息被分配给用于信息传输的不同频谱之间具有小路径损耗的锚频谱，并被发送到移动台 将与第一信息相比较低的通信质量的第二信息分配给具有大的路径损耗的有效载荷频谱并发送给移动站装置（UE）。