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    • 3. 发明授权
    • Modulation apparatus, modulation method, and demodulation apparatus
    • 调制装置,调制方法和解调装置
    • US07936811B2
    • 2011-05-03
    • US11597420
    • 2005-05-24
    • Genichiro OhtaDaichi ImamuraKeiji TakakusakiMitsuru Uesugi
    • Genichiro OhtaDaichi ImamuraKeiji TakakusakiMitsuru Uesugi
    • H04L27/00H04L25/03
    • H04L27/2637H04L27/2649
    • A modulating device capable of generating an OFDM signal and having a drastically improved frequency use efficiency. The modulating device has modulators (6, 8 (11, 13, 106, 108, 111, 113)) for modulating a signal to be modulated and having a Nyquist roll-off frequency characteristic with a carrier frequency having a difference two times the Nyquist frequency and combiners (10(15, 110, 115)) for generating modulation output having a speed two times that of the signal to demodulated and the same Nyquist roll-off slope as the signal to be modulated by combining the outputs of the modulators (6, 8 (11, 13, 106, 108, 111, 113)). Thus a double speed wave can be superposed on the same frequency without varying the roll-off slope of the Nyquist characteristic, and therefore an OFDM signal (19) having a drastically improved frequency use efficiency is provided.
    • 一种调制装置,能够产生OFDM信号并具有显着提高的频率使用效率。 调制装置具有用于调制要调制的信号并且具有奈奎斯特滚降频率特性的调制器(6,8(11,13,106,108,111,113)),其载波频率的差值是奈奎斯特 频率和组合器(10(15,110,115)),用于产生具有要解调的信号的速度的两倍的调制输出和与要调制的信号相同的奈奎斯特滚降斜率(通过组合调制器的输出) 6,8(11,13,106,108,111,113))。 因此,可以将双速波叠加在同一频率上,而不改变奈奎斯特特性的滚降斜率,因此提供了频率提高的频率使用效率的OFDM信号(19)。
    • 4. 发明申请
    • MOBILE STATION DEVICE
    • 移动站设备
    • US20100195707A1
    • 2010-08-05
    • US11997710
    • 2005-08-04
    • Jinsong DuanMitsuru UesugiKeisuke EbikoKeiji TakakusakiAtsushi Sumasu
    • Jinsong DuanMitsuru UesugiKeisuke EbikoKeiji TakakusakiAtsushi Sumasu
    • H04B17/00H04L1/02
    • H04L1/0026H04L1/0003H04L1/0009H04L1/0029H04L1/003H04L5/0007H04L5/0046H04L5/006H04L5/0091H04L25/022
    • A mobile terminal device for performing multi-carrier communication with a base station device can improve communication quality while reducing the data amount without lowering accuracy of feedback information. In the mobile station device (100), a reception level measuring unit (135) measuring SINR as a reception level for each chunk formed by a plurality of sub-carriers according to a known signal; a control information transmission control unit (160) transmits feedback information (CQI information) based on the communication quality of each chunk to a base station device (200); a relative value calculation unit (150) calculates a relative value of MCS corresponding to the reception level between adjacent chunks from the reception level of each chunk; and a CQI information generation unit (155) generates feedback information (CQI information) from an absolute value of MCS corresponding to the reception level of the reference chunk and a relative value of MCS corresponding to the reception level between the adjacent chunks.
    • 用于与基站设备进行多载波通信的移动终端设备可以在降低数据量的同时提高通信质量,而不降低反馈信息的准确性。 在所述移动台装置(100)中,根据已知信号,将由SINR构成的每个块的接收电平测量SINR的接收电平测量单元(135) 控制信息发送控制部(160)将基于各块的通信质量的反馈信息(CQI信息)发送到基站装置(200); 相对值计算单元从每个块的接收电平计算与相邻块之间的接收电平相对应的MCS的相对值; CQI信息生成部(155)根据与基准块的接收电平对应的MCS的绝对值和与相邻的块之间的接收电平相对应的MCS的相对值生成反馈信息(CQI信息)。
    • 5. 发明授权
    • Path search circuit, radio receiver and radio transmitter, utilizing a directional beam
    • 路径搜索电路,无线电接收机和无线电发射机,利用定向波束
    • US07088956B2
    • 2006-08-08
    • US10411344
    • 2003-04-10
    • Takaaki KishigamiTakashi FukagawaYasuaki YudaKeiji TakakusakiShoji Miyamoto
    • Takaaki KishigamiTakashi FukagawaYasuaki YudaKeiji TakakusakiShoji Miyamoto
    • H04B1/00H04B15/00
    • H04B1/7113H04B1/7117H04B7/086
    • A path search circuit according to the present invention has an orthogonal multi-beam forming section 4 for directional reception with a plurality of orthogonal multi-beams orthogonal one to another, correlation-operating sections 61–6M for correlation-operating outputs of the orthogonal multi-beam forming section 4 with a known signal, weight multiplying sections 81–8Nb for multiplying the output of the correlation-operating section 61–6M by a weight converted into a beam space, delay profile generating sections 91–9Nb for generating delay profiles from the output signals of the weight multiplying sections 81–8Nb, and a path detecting section 10 for detecting a reception timing and arrival direction of arrival path from the delay profile. This path search circuit can enhance the accuracy of path direction detection by the use of a directional reception signal, and further reduce the direction dependence of path timing detection accuracy.
    • 根据本发明的路径搜索电路具有用于定向接收的正交多波束形成部分4,其中多个正交多波束彼此正交,相关运算部分61-6M用于正交的相关运算输出 具有已知信号的多波束形成部分4,用于将相关操作部分61-6M的输出乘以被转换成波束空间的权重的加权乘法部分81-8 Nb,延迟分布生成部分91-9 Nb 从权重乘法部分81-8 Nb的输出信号产生延迟分布;以及路径检测部分10,用于从延迟分布中检测接收定时和到达方向到达方向。 该路径搜索电路可以通过使用定向接收信号来提高路径方向检测的精度,进一步减小路径定时检测精度的方向依赖性。
    • 8. 发明授权
    • Adaptive antenna radio communication device
    • 自适应天线无线电通信设备
    • US07333056B2
    • 2008-02-19
    • US10524253
    • 2003-09-26
    • 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 (4) 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 (1) 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 (5) 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 (6) 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装置包括:分频带方向估计单元,用于通过计算由阵列天线(1)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,来估计方向,并计算 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确定的相关矩阵的空间分布; 分割带阵列权重创建单元(5),用于在每个分割频带的方向上产生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(6),用于通过将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。
    • 9. 发明授权
    • Communication apparatus and communication method
    • 通信设备和通信方法
    • US07058425B1
    • 2006-06-06
    • US09744029
    • 2000-05-22
    • Keiji Takakusaki
    • Keiji Takakusaki
    • H04M1/00
    • F24F11/30F24F11/54F24F11/56F24F11/62H01Q3/26H01Q3/2605H01Q3/267H04B1/0475H04B7/0615H04B7/0617H04B2001/0416
    • Baseband signal generator 107 outputs a transmission baseband signal with a coefficient for setting antenna directivity multiplied and a gain control signal to transmit power amplifier 114 and transmit power amplifier 114 amplifies the transmission baseband signal with a gain corresponding to the gain control signal and transmits the signal from antenna 102. ATT 118 attenuates the output signal of amplifier 114 according to the gain control signal, amplitude/phase comparator 110 calculates amplitude and phase errors between the attenuated signal with a frequency equalized by frequency conversion sections 120 and 121 and the input signal of amplifier 114 and phase/amplitude correction section 108 corrects the transmission baseband signal and gain control signal so as to eliminate the errors. This makes it possible to correct the amplitude and phase shifts of the transmission signal during a communication with other apparatuses and reduce the size and cost of the apparatus.
    • 基带信号发生器107输出具有用于设置天线方向性的系数的发送基带信号和用于发送功率放大器114的增益控制信号,发送功率放大器114以与增益控制信号相对应的增益放大发送基带信号,并发送信号 来自天线102。 ATT 118根据增益控制信号衰减放大器114的输出信号,振幅/相位比较器110计算由频率转换部分120和121等效的频率的衰减信号与放大器114的输入信号和相位之间的相位误差 /幅度校正部分108校正发送基带信号和增益控制信号,以消除误差。 这使得可以在与其他设备的通信期间校正传输信号的幅度和相移,并且减小设备的尺寸和成本。
    • 10. 发明授权
    • Mobile station device
    • 移动站设备
    • US08139662B2
    • 2012-03-20
    • US11997710
    • 2005-08-04
    • Jinsong DuanMitsuru UesugiKeisuke EbikoKeiji TakakusakiAtsushi Sumasu
    • Jinsong DuanMitsuru UesugiKeisuke EbikoKeiji TakakusakiAtsushi Sumasu
    • H04K1/10
    • H04L1/0026H04L1/0003H04L1/0009H04L1/0029H04L1/003H04L5/0007H04L5/0046H04L5/006H04L5/0091H04L25/022
    • A mobile terminal device for performing multi-carrier communication with a base station device can improve communication quality while reducing the data amount without lowering accuracy of feedback information. In the mobile station device (100), a reception level measuring unit (135) measuring SINR as a reception level for each chunk formed by a plurality of sub-carriers according to a known signal; a control information transmission control unit (160) transmits feedback information (CQI information) based on the communication quality of each chunk to a base station device (200); a relative value calculation unit (150) calculates a relative value of MCS corresponding to the reception level between adjacent chunks from the reception level of each chunk; and a CQI information generation unit (155) generates feedback information (CQI information) from an absolute value of MCS corresponding to the reception level of the reference chunk and a relative value of MCS corresponding to the reception level between the adjacent chunks.
    • 用于与基站设备进行多载波通信的移动终端设备可以在降低数据量的同时提高通信质量,而不降低反馈信息的准确性。 在所述移动台装置(100)中,根据已知信号,将由SINR构成的每个块的接收电平测量SINR的接收电平测量单元(135) 控制信息发送控制部(160)将基于各块的通信质量的反馈信息(CQI信息)发送到基站装置(200); 相对值计算单元从每个块的接收电平计算与相邻块之间的接收电平相对应的MCS的相对值; CQI信息生成部(155)根据与基准块的接收电平对应的MCS的绝对值和与相邻的块之间的接收电平相对应的MCS的相对值生成反馈信息(CQI信息)。