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    • 5. 发明授权
    • Base station apparatus, terminal apparatus and wireless communication system using them
    • 基站装置,终端装置和使用它们的无线通信系统
    • US09019919B2
    • 2015-04-28
    • US13700756
    • 2011-05-27
    • Shimpei ToTakashi OnoderaKozue HirataHiroshi NakanoHiromichi TomebaMinoru Kubota
    • Shimpei ToTakashi OnoderaKozue HirataHiroshi NakanoHiromichi TomebaMinoru Kubota
    • H04B7/06
    • H04B7/0697H04B7/0617
    • When signals received by receiving antennas included in each terminal are subjected to MMSE combining, it is configured that each terminal is able to grasp position of desired signal in signal vector obtained after combining. A base station 100 receives by a receiving antenna 23 from the terminal apparatus channel state information between a transmitting antenna 16 and spatial multiplexing object antennas included in each terminal apparatus. A transmit weight calculation unit 19 calculates a transmit weight for performing spatial multiplexing transmission to the terminal apparatus based on the channel state information. Transmit weight multiplication unit s 12 and 18 multiplies an information signal addressed to each terminal apparatus to be performed spatial multiplexing by the transmit weight. A signal multiplexing unit 13 multiplexes the information signal multiplied by the transmit weight and an information to specify the information signal that needs to be demodulated by each terminal apparatus.
    • 当通过每个终端中包含的接收天线接收到的信号进行MMSE组合时,配置为每个终端能够在组合后获得的信号向量中掌握期望信号的位置。 基站100由发送天线16和各终端装置中包含的空间复用对象天线之间的终端装置信道状态信息由接收天线23接收。 发送权重计算单元19基于信道状态信息计算用于对终端装置执行空间复用传输的发送权重。 发送权重乘法单元12和18将寻址到每个终端设备的信息信号乘以发送权重进行空间复用。 信号复用单元13将乘以发送权重的信息信号和用于指定每个终端装置需要解调的信息信号的信息进行复用。
    • 6. 发明申请
    • TRANSMISSION APPARATUS, RECEPTION APPARATUS, WIRELESS COMMUNICATION SYSTEM, CONTROL PROGRAM AND INTEGRATED CIRCUIT
    • 传输装置,接收装置,无线通信系统,控制程序和集成电路
    • US20130136050A1
    • 2013-05-30
    • US13700754
    • 2011-05-13
    • Hiromichi TomebaMinoru KubotaTakashi OnoderaShimpei ToKozue HirataHiroshi Nakano
    • Hiromichi TomebaMinoru KubotaTakashi OnoderaShimpei ToKozue HirataHiroshi Nakano
    • H04W24/02
    • H04W24/02H04B7/0452H04J11/0033H04L1/0625H04L1/0656H04L25/4975H04L27/2601
    • 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.
    • 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。
    • 8. 发明申请
    • BASE STATION APPARATUS, TERMINAL APPARATUS AND WIRELESS COMMUNICATION SYSTEM USING THEM
    • 基站设备,终端设备和无线通信系统
    • US20130121277A1
    • 2013-05-16
    • US13700756
    • 2011-05-27
    • Shimpei ToTakashi OnoderaKozue HirataHiroshi NakanoHiromichi TomebaMinoru Kubota
    • Shimpei ToTakashi OnoderaKozue HirataHiroshi NakanoHiromichi TomebaMinoru Kubota
    • H04B7/06
    • H04B7/0697H04B7/0617
    • When signals received by receiving antennas included in each terminal are subjected to MMSE combining, it is configured that each terminal is able to grasp position of desired signal in signal vector obtained after combining. A base station 100 receives by a receiving antenna 23 from the terminal apparatus channel state information between a transmitting antenna 16 and spatial multiplexing object antennas included in each terminal apparatus. A transmit weight calculation unit 19 calculates a transmit weight for performing spatial multiplexing transmission to the terminal apparatus based on the channel state information. Transmit weight multiplication unit s 12 and 18 multiplies an information signal addressed to each terminal apparatus to be performed spatial multiplexing by the transmit weight. A signal multiplexing unit 13 multiplexes the information signal multiplied by the transmit weight and an information to specify the information signal that needs to be demodulated by each terminal apparatus.
    • 当通过每个终端中包含的接收天线接收到的信号进行MMSE组合时,配置为每个终端能够在组合后获得的信号向量中掌握期望信号的位置。 基站100由发送天线16和各终端装置中包含的空间复用对象天线之间的终端装置信道状态信息由接收天线23接收。 发送权重计算单元19基于信道状态信息计算用于对终端装置执行空间复用传输的发送权重。 发送权重乘法单元12和18将寻址到每个终端设备的信息信号乘以发送权重进行空间复用。 信号复用单元13将乘以发送权重的信息信号和用于指定每个终端装置需要解调的信息信号的信息进行复用。
    • 9. 发明申请
    • WIRELESS COMMUNICATION SYSTEM, BASE STATION DEVICE, AND TERMINAL DEVICE
    • 无线通信系统,基站设备和终端设备
    • US20130336418A1
    • 2013-12-19
    • US14002616
    • 2012-03-02
    • Hiromichi TomebaTakashi OnoderaHiroshi NakanoAlvaro Ruiz DelgadoShimpei To
    • Hiromichi TomebaTakashi OnoderaHiroshi NakanoAlvaro Ruiz DelgadoShimpei To
    • H04B7/04
    • H04B7/0482H04B7/0452H04B7/0465H04B7/0632H04B7/0697H04L1/0003
    • A terminal device notifies a base station device about control information associated with a receive quality of the terminal device. The base station device performs data modulation on a plurality of pieces of transmit data for the terminal device, by using a plurality of different data modulation schemes one by one, based on the control information, and spatially multiplexes the plurality of pieces of transmit data after the data modulation over a single wireless resource and transmits a spatially multiplexed signal. The terminal device receives the signal with the plurality of pieces of transmit data spatially multiplexed, and detects desirable transmit data from the receive signal, based on a first channel matrix which represents channel state information between the base station device and the terminal device and a second channel matrix in which the first channel matrix is multiplied by a transform matrix. Accordingly, an adaptive modulation technology is applied even to MIMO spatial multiplexing transmission using a LR technology, and hence a wireless communication system and so forth that can contribute to improvement in frequency utilization efficiency can be provided.
    • 终端装置向基站装置通知与终端装置的接收质量有关的控制信息。 基站装置基于控制信息,通过使用多个不同的数据调制方案,对终端装置的多条发送数据进行数据调制,并且将多条发送数据在 通过单个无线资源进行数据调制,并发送空间复用信号。 终端设备接收具有多个发送数据的信号进行空间复用,并且基于表示基站设备与终端设备之间的信道状态信息的第一信道矩阵和第二信道矩阵,从接收信号中检测期望的发送数据 信道矩阵,其中第一信道矩阵乘以变换矩阵。 因此,利用LR技术甚至可以应用自适应调制技术进行MIMO空间复用传输,因此可以提供有助于提高频率利用效率的无线通信系统等。