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    • 1. 发明申请
    • Modulation Device, Modulation Method, and Demodulating Device
    • 调制装置,调制方式和解调装置
    • US20070286301A1
    • 2007-12-13
    • US11597420
    • 2005-05-24
    • Genichiro OhtaDaichi ImamuraKeiji TakakusakiMitsuru Uesugi
    • Genichiro OhtaDaichi ImamuraKeiji TakakusakiMitsuru Uesugi
    • H04L5/12
    • 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)。
    • 2. 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)。
    • 6. 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)。
    • 7. 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)。
    • 8. 发明授权
    • Mobile station apparatus, communication method, and base station apparatus
    • 移动站装置,通信方法以及基站装置
    • US08155227B2
    • 2012-04-10
    • US13160872
    • 2011-06-15
    • 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)。
    • 9. 发明授权
    • Radio receiving apparatus and radio receiving method
    • 无线电接收装置和无线电接收方法
    • US07848459B2
    • 2010-12-07
    • US11911700
    • 2006-04-10
    • Mitsuru UesugiEiji Ota
    • Mitsuru UesugiEiji Ota
    • H04L27/00H03K9/00
    • H04L27/2647H04B1/719H04L27/2623
    • A radio receiving apparatus wherein the interference can be minimized and the power and bands can be effectively used in the process of receiving a signal comprising a combination of an impulse signal and an OFDM signal. In this apparatus, a transmission path equalizing part (205) performs a transmission path equalizing process of a signal comprising a combination of an OFDM signal and an impulse signal of UWB-IR system, and a signal separating part (208) uses a constant (C) to clip the amplitude level for a signal (Y1) demodulated as the OFDM signal, and substantially clips only the signal components of the impulse signal. Further, only when a signal (Y2) demodulated as the impulse signal exhibits an amplitude level greater than the constant (C), it is outputted, while most of the signal power of the combined OFDM signal is removed.
    • 一种无线电接收设备,其中可以使干扰最小化,并且在接收包括脉冲信号和OFDM信号的组合的信号的过程中可以有效地使用功率和频带。 在该装置中,传输路径均衡部(205)执行包括OFDM信号和UWB-IR系统的脉冲信号的组合的信号的传输路径均衡处理,信号分离部(208)使用常数( C)对作为OFDM信号进行解调的信号(Y1)的幅度电平进行钳位,并且仅基本上剪切脉冲信号的信号分量。 此外,只有当作为脉冲信号解调的信号(Y2)表现出大于常数(C)的幅度电平时,才能输出组合的OFDM信号的大部分信号功率。
    • 10. 发明申请
    • Radio Communication Apparatus and Peak Suppression Method
    • 无线电通信装置和峰值抑制方法
    • US20080233901A1
    • 2008-09-25
    • US10573252
    • 2004-09-17
    • Keisuke EbikoMitsuru Uesugi
    • Keisuke EbikoMitsuru Uesugi
    • H04B1/02H04L25/49H04L27/28
    • H04L27/2624H04L1/0026
    • A radio communication apparatus enabling reduction in peak-to-average power ratio without decreasing the transmission efficiency. In this apparatus, buffer section 103 temporarily stores input data prior to peak suppression. Peak detecting section 106 detects a peak with an amplitude level not less than a threshold. Peak cut section 107 reduces the detected peak to the threshold. Switching section 109 is switched so that the peak suppressed signal is output to FFT section 114 when the peak is detected, while the peak suppressed signal is subjected to transmission processing when the peak is not detected. Based on MCS information, signal recovering section 115 eliminates a signal assigned to a subcarrier set for MCS of a high level, and as a substitute, assigns the signal prior to peak suppression stored in buffer section 103. MCS setting section 116 selects MCS based on reception quality information of a communicating party.
    • 一种能够降低峰均功率比而不降低传输效率的无线电通信装置。 在该装置中,缓冲器部分103临时存储峰值抑制之前的输入数据。 峰值检测部分106检测幅度不小于阈值的峰值。 峰值切割部分107将检测到的峰值减小到阈值。 切换部分109被切换,使得当检测到峰值时,峰值抑制信号被输出到FFT部分114,而当没有检测到峰值时,峰值抑制信号被进行发送处理。 基于MCS信息,信号恢复部115消除分配给用于高电平的MCS的子载波集的信号,并且作为替代,分配存储在缓冲器部分103中的峰值抑制之前的信号。 MCS设定部116基于通信对方的接收质量信息来选择MCS。