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    • 31. 发明授权
    • Precoding apparatus, program for precoding, and integrated circuit
    • 预编码装置,预编码程序和集成电路
    • US09077599B2
    • 2015-07-07
    • US14236125
    • 2012-07-20
    • Hiromichi TomebaTakashi OnoderaHiroshi NakanoAlvaro Ruiz Delgado
    • Hiromichi TomebaTakashi OnoderaHiroshi NakanoAlvaro Ruiz Delgado
    • H04L27/00H04L27/26H04B7/04H04B7/06H04L1/00
    • H04L27/2626H04B7/0456H04B7/0617H04L1/00
    • 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.
    • 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。
    • 33. 发明申请
    • WIRELESS RECEIVING APPARATUS AND PROGRAM
    • 无线接收设备和程序
    • US20140177763A1
    • 2014-06-26
    • US14235537
    • 2012-07-19
    • Hiromichi TomebaTakashi OnoderaHiroshi NakanoAlvaro Ruiz Delgado
    • Hiromichi TomebaTakashi OnoderaHiroshi NakanoAlvaro Ruiz Delgado
    • H04B7/04H04L25/02
    • H04B7/0478H04B7/0456H04J11/0036H04J11/0063H04L25/0212H04L25/0224H04L25/025H04L27/2647
    • A data signal component output from a reference signal demultiplexer and channel state information obtained by using DM-RS output from a channel estimating unit are input into a modulo estimating unit. In a channel compensator, a first provisional decision value sequence is calculated on the basis of the channel state information. The first provisional decision value sequence is input into a modulo calculator, and modulo calculations are performed on the first provisional decision value sequence to obtain a second provisional decision value sequence. A decision-feedback channel estimating section finds a first channel estimation value based on the first provisional decision value sequence and a second channel estimation value based on the second provisional decision value sequence. A modulo decision section decides whether or not a perturbation term has been added to a code, and uses a decision result for the selection of a demodulation method.
    • 从参考信号解复用器输出的数据信号分量和通过使用从信道估计单元输出的DM-RS获得的信道状态信息被输入到模估计单元中。 在信道补偿器中,基于信道状态信息来计算第一临时判定值序列。 第一临时判定值序列被输入到模运算器中,并且对第一临时判定值序列进行模运算以获得第二临时判定值序列。 判定反馈信道估计部基于第一临时判定值序列和基于第二临时判定值序列的第二信道估计值,求出第一信道估计值。 模决定部判定是否将扰动项添加到代码中,并且使用用于选择解调方法的判定结果。
    • 34. 发明申请
    • TRANSMITTER DEVICE, RECEIVER DEVICE, AND WIRELESS COMMUNICATION SYSTEM
    • 发射机装置,接收装置和无线通信系统
    • US20120071104A1
    • 2012-03-22
    • US13321390
    • 2010-04-14
    • Takashi OnoderaHiroshi NakanoKozue HirataMinoru Kubota
    • Takashi OnoderaHiroshi NakanoKozue HirataMinoru Kubota
    • H04B15/00H04B1/10H04B1/04
    • H04L27/34H04L1/0034H04L1/0035
    • 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.
    • 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。
    • 36. 发明申请
    • WIRELESS COMMUNICATION SYSTEM AND WIRELESS COMMUNICATION DEVICE
    • 无线通信系统和无线通信设备
    • US20120064833A1
    • 2012-03-15
    • US13321194
    • 2010-05-19
    • Hiroshi NakanoTakashi OnoderaKozue HirataMinoru Kubota
    • Hiroshi NakanoTakashi OnoderaKozue HirataMinoru Kubota
    • H04B15/00H04B7/24
    • H04L25/03343H04L27/2601
    • When applying inflated lattice precoding (ILP) transmission to a multi-carrier scheme, there arises a need to notify coefficient α thereof per sub-carrier. Applying ILP transmission has proven difficult since multi-carrier schemes such as those widely adopted in mobile communication systems, etc., in recent years have an extremely large number of sub-carriers and the information volume of the control signal becomes extremely large. As such, at a transmitter device B, coefficient α is inputted to a 1/α multiplier part 15, and a DRS from a dedicated reference signal (DRS) generator part 11 is multiplied by 1/α and transmitted. At a receiver device C, an estimated signal is obtained by performing a remainder process at a reception modulo operator part 51 using a modulo width determined based on the DRS, without performing a process of a reception coefficient multiplier part with respect to a reception signal.
    • 当将充气格子预编码(ILP)传输应用于多载波方案时,需要通知每个子载波的系数α。 由于近年来在移动通信系统等中广泛采用的多载波方案具有非常多的子载波,并且控制信号的信息量变得非常大,所以应用ILP传输被证明是困难的。 这样,在发送装置B中,将系数α输入到1 /α乘法器部15,将来自专用基准信号(DRS)发生部11的DRS乘以1 /α并进行发送。 在接收机装置C中,通过使用基于DRS确定的模数宽度,在接收模运算器部分51执行余数处理,而不对接收信号执行接收系数乘法器部分的处理,来获得估计信号。
    • 39. 发明授权
    • Base station apparatus, relay station apparatus, and communication system
    • 基站装置,中继站装置和通信系统
    • US08649731B2
    • 2014-02-11
    • US12997512
    • 2009-06-18
    • Takashi OnoderaToshizo NogamiOsamu NakamuraHiroshi Nakano
    • Takashi OnoderaToshizo NogamiOsamu NakamuraHiroshi Nakano
    • H04B3/36
    • H04B7/155H04B7/2606H04L1/0026H04L1/0027H04L1/0031H04L1/0073H04L5/003H04L5/0037H04L5/0091H04L25/0204H04L25/0224H04L2001/0097
    • Provided is a communication system that can allocate resources on an uplink for a CQI report, and can reduce the overhead of the CQI relay transmission from a relay station apparatus to a base station apparatus. To each mobile station apparatus (501, 502) that transmits CQI directly to a base station apparatus (500), resource blocks on a base station apparatus uplink to be used for the transmission of each CQI to the base station apparatus are allocated. Resource blocks on the base station apparatus uplink to be used for each relay station to relay-transmit to the base station apparatus CQI received from the mobile station apparatuses are allocated on the basis of the allocation result of resource blocks on a relay station apparatus uplink for each relay station apparatus (510, 520). To mobile station apparatuses that transmit CQI to the base station apparatus via each relay station apparatus, resource blocks on the relay station apparatus uplink to be used for the transmission of CQI to the relay station apparatus are allocated.
    • 提供了一种能够在CQI报告的上行链路上分配资源的通信系统,能够减少从中继站装置向基站装置的CQI中继发送的开销。 对于向基站装置(500)直接发送CQI的各个移动站装置(501,502),分配用于向基站装置发送各CQI的基站装置上行链路的资源块。 基于在中继站装置上行链路上的资源块的分配结果,分配基站装置上行的用于每个中继站的中继站的资源块,用于中继向基站装置发送的移动台装置 每个中继站装置(510,520)。 对于经由各个中继站装置向基站装置发送CQI的移动站装置,分配用于向中继站装置发送CQI的中继站装置上行链路的资源块。