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    • 52. 发明授权
    • Radio communication method
    • 无线电通信方式
    • US08422941B2
    • 2013-04-16
    • US13452542
    • 2012-04-20
    • Akihiko NishioYasuaki YudaTomohiro Imai
    • Akihiko NishioYasuaki YudaTomohiro Imai
    • H04B7/14H04B3/36
    • H04B7/15542H04L5/0007H04L5/0032H04L5/0048H04L25/0226H04W16/14H04W48/08H04W88/04
    • A wireless communication method and the like for improving the system throughput. The wireless communication method is used in a mobile communication system having a base station apparatus, a relay station apparatus and a mobile station apparatus #1. In a first transmission step, a first transport signal, which includes data addressed to MS #1, is transmitted from BS to RS. In a second transmission step, a second transport signal, which includes a pilot generated by BS, is transmitted from BS. Simultaneously, in the second transmission step, a relay signal, which includes the data addressed to MS #1 and also includes a pilot that is generated by RS and that has a particular orthogonal relationship with the pilot generated by BS, is transmitted from RS to MS #1.
    • 一种用于提高系统吞吐量的无线通信方法等。 无线通信方法用于具有基站装置,中继站装置和移动台装置#1的移动通信系统。 在第一传输步骤中,包括寻址到MS#1的数据的第一传输信号从BS发送到RS。 在第二传输步骤中,从BS发送包括由BS产生的导频的第二传输信号。 同时,在第二发送步骤中,包括寻址到MS#1的数据并且还包括由RS生成并与由BS产生的导频具有特定正交关系的导频的中继信号从RS发送到 MS#1。
    • 53. 发明授权
    • Wireless communication apparatus and wireless communication method
    • 无线通信装置和无线通信方法
    • US08320356B2
    • 2012-11-27
    • US11912636
    • 2006-04-26
    • Akihiko NishioYasuaki Yuda
    • Akihiko NishioYasuaki Yuda
    • H04J3/00H04L12/28
    • H04L5/0053H04L1/0003H04L1/0009H04L1/1812H04L27/2626H04L27/2647
    • The circuit scale of a wireless communication apparatus at the data receiving end in a wireless communication performing an adaptive control for each of subcarriers or subchannels can be reduced. In the present apparatus, frame forming parts (103-1 to 103-m) each multiplex a pilot, control information and transport data to form a frame for a respective one of subchannels (1 to m). A subcarrier assigning part (104) assigns subcarriers designated from an adaptive control part (114) to the respective frames formed by the frame forming parts (103-1 to 103-m). A timing control part (105) establishes mutually different frame timing offsets to the respective frames received from the subcarrier assigning part (104).
    • 可以减少对每个子载波或子信道执行自适应控制的无线通信中的数据接收端的无线通信装置的电路规模。 在本装置中,帧形成部分(103-1至103-m)各自复用导频,控制信息和传输数据,以形成用于各个子信道(1至m)的帧。 副载波分配部(104)将从自适应控制部(114)指定的副载波分配给由帧形成部(103-1〜103-m)形成的各帧。 定时控制部分(105)为从子载波分配部分(104)接收到的各个帧建立相互不同的帧定时偏移。
    • 56. 发明授权
    • Wireless communication apparatus
    • 无线通信装置
    • US08498327B2
    • 2013-07-30
    • US13459884
    • 2012-04-30
    • Yasuaki YudaTakaaki KishigamiTakashi FukagawaYoichi NakagawaShinichiro Takabayashi
    • Yasuaki YudaTakaaki KishigamiTakashi FukagawaYoichi NakagawaShinichiro Takabayashi
    • H04B1/38
    • H04B7/0619H04B7/0617H04B7/086H04B17/11H04B17/21
    • Wireless communication apparatus adopting a time division duplex system for transmission and reception using plural antennas, deviation of amplitude and phase occurring between transmission and reception circuits is detected and corrected using a communication signal. Channel estimation means detects channel information based on reception output of N reception circuits having a one-to-one correspondence with N antennas. Correction value detection means finds a correction value for correcting deviation occurring between each of N transmission circuits and each of the N reception circuits based on the channel information. A wireless communication apparatus transmits an already known signal (training signal) to a base station with which the wireless communication apparatus conducts communications. The base station executes channel estimation based on the already known signal and generates and transmits a correction signal (probe signal). The correction value detection means of the wireless communication apparatus detects the correction value using the correction signal.
    • 采用使用多个天线进行发送和接收的时分双工系统的无线通信装置,使用通信信号检测和校正发送和接收电路之间发生的幅度和相位的偏差。 信道估计装置根据与N个天线一一对应的N个接收电路的接收输出来检测信道信息。 校正值检测装置根据频道信息找到校正发生在N个发送电路和N个接收电路中的每一个之间的偏差的校正值。 无线通信装置向无线通信装置进行通信的基站发送已知的信号(训练信号)。 基站根据已知的信号进行信道估计,生成并发送校正信号(探测信号)。 无线通信装置的校正值检测装置使用校正信号来检测校正值。
    • 57. 发明授权
    • Adaptive antenna radio communication device
    • 自适应天线无线电通信设备
    • US07940215B2
    • 2011-05-10
    • US11961340
    • 2007-12-20
    • Takaaki KishigamiTakashi FukagawaYasuaki YudaKeiji TakakusakiShoji Miyamoto
    • Takaaki KishigamiTakashi FukagawaYasuaki YudaKeiji TakakusakiShoji Miyamoto
    • G01S5/02
    • G01S3/043G01S3/14H04B7/086H04L27/2601
    • An adaptive antenna radio communication device comprises a divided band direction estimating unit for estimating the direction by calculating the cross correlations between a pilot signal and sub-carrier signals of the respective divided bands received by an array antenna and calculating a spatial profile from correlation matrices determined by combining the correlation values between antenna elements of the different sub-carriers according to the output of the cross correlation calculation; a divided band array weight creating unit for creating a weight of a receive array having a directional beam in the direction of estimation for each divided band; and a sub-carrier directivity creating unit for creating a directivity by multiplication-combining the created receive array weight with the corresponding sub-carrier signal.
    • 一种自适应天线无线电通信设备包括:分频带方向估计单元,用于通过计算由阵列天线接收的各个分频带的导频信号和副载波信号之间的互相关,来估计该方向,并根据确定的相关矩阵计算空间分布 通过根据互相关计算的输出组合不同子载波的天线元件之间的相关值; 分割带阵列权重创建单元,用于为每个分割频带创建在估计方向上具有定向波束的接收阵列的权重; 以及子载波方向性创建单元,用于通过将所创建的接收阵列权重与相应的副载波信号相乘合成来产生方向性。
    • 58. 发明申请
    • RADIO COMMUNICATION DEVICE AND ARRIVAL DIRECTION ESTIMATION METHOD
    • 无线电通信设备和到达方向估计方法
    • US20110090813A1
    • 2011-04-21
    • US12979318
    • 2010-12-27
    • Takaaki KisigamiTakashi FukagawaYasuaki YudaKeiji TakakusakiShoji Miyamoto
    • Takaaki KisigamiTakashi FukagawaYasuaki YudaKeiji TakakusakiShoji Miyamoto
    • H04L12/26
    • H04B1/7113G01S3/74H04B1/7117H04B7/0617H04B7/086H04B2201/70701H04B2201/70715H04L1/06
    • A receiver having an array antenna estimates arrival directions of multiple paths that arrive with an angular spread. Consequently, arrival direction estimation accuracy can be ensured without increasing throughput even if the power every path is low by estimating an average arrival direction of an entire set of multiple paths having the angular spread from a result of one angular spectrum by multiple correlation operation units that perform mutual correlation operations with pilot signals for baseband signals received by the array antenna, a path detection unit that detects multiple arrival path receiving timings by generating a delay profile based on output of each of the correlation operation units, a path correlation value synthesis unit that synthesizes a correlation operation value calculated in the multiple correlation operation units and an arrival direction estimation unit that collectively estimates multiple path arrival directions using output of the path correlation value synthesis unit.
    • 具有阵列天线的接收机估计以角度扩展到达的多个路径的到达方向。 因此,即使通过多个相关运算单元从一个角度频谱的结果估计具有角度扩展的整个多个路径的整个组的平均到达方向,即使通过多个相关运算单元来估计每个路径的功率,也可以确保到达方向估计精度, 执行与阵列天线接收的基带信号的导频信号的相互关联操作;路径检测单元,通过基于每个相关运算单元的输出生成延迟分布来检测多个到达路径接收定时;路径相关值合成单元, 合成在多个相关运算单元中计算出的相关运算值和使用路径相关值合成单元的输出共同估计多个路径到达方向的到达方向估计单元。
    • 60. 发明授权
    • Radio communication device and arrival direction estimation method
    • 无线电通信装置和到达方向估计方法
    • US07860064B2
    • 2010-12-28
    • US11833037
    • 2007-08-02
    • Takaaki KisigamiTakashi FukagawaYasuaki YudaKeiji TakausakiShoji Miyamoto
    • Takaaki KisigamiTakashi FukagawaYasuaki YudaKeiji TakausakiShoji Miyamoto
    • H04B7/208
    • H04B1/7113G01S3/74H04B1/7117H04B7/0617H04B7/086H04B2201/70701H04B2201/70715H04L1/06
    • A receiver having an array antenna estimates arrival directions of multiple paths that arrive with an angular spread. Consequently, arrival direction estimation accuracy can be ensured without increasing throughput even if the power every path is low by estimating an average arrival direction of an entire set of multiple paths having the angular spread from a result of one angular spectrum by multiple correlation operation units that perform mutual correlation operations with pilot signals for baseband signals received by the array antenna, a path detection unit that detects multiple arrival path receiving timings by generating a delay profile based on output of each of the correlation operation units, a path correlation value synthesis unit that synthesizes a correlation operation value calculated in the multiple correlation operation units and an arrival direction estimation unit that collectively estimates multiple path arrival directions using output of the path correlation value synthesis unit.
    • 具有阵列天线的接收机估计以角度扩展到达的多个路径的到达方向。 因此,即使通过多个相关运算单元从一个角度频谱的结果估计具有角度扩展的整个多个路径的整个组的平均到达方向,即使通过多个相关运算单元来估计每个路径的功率,也可以确保到达方向估计精度, 执行与阵列天线接收的基带信号的导频信号的相互关联操作;路径检测单元,通过基于每个相关运算单元的输出生成延迟分布来检测多个到达路径接收定时;路径相关值合成单元, 合成在多个相关运算单元中计算出的相关运算值和使用路径相关值合成单元的输出共同估计多个路径到达方向的到达方向估计单元。