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    • 2. 发明授权
    • Transmitting apparatus, receiving apparatus, and wireless communication method
    • 发送装置,接收装置和无线通信方法
    • US08279953B2
    • 2012-10-02
    • US11813722
    • 2005-12-27
    • Mitsuru UesugiEiji OtaAtsushi SumasuKeisuke Ebiko
    • Mitsuru UesugiEiji OtaAtsushi SumasuKeisuke Ebiko
    • H04K1/10H04L27/28
    • H04L25/022H04L5/0007H04L5/0048H04L25/0232H04L25/03159H04L25/03891H04L2025/03414H04L2025/03522
    • A transmitting apparatus, a receiving apparatus and a wireless communication method for suppressing interference between codes, while further reducing the ratio of redundant components occupying a signal to improve the transmission efficiency. The transmitting apparatus (100) transmits a signal having a frame structure in which a plurality of symbols follow a pilot symbol to which a guard interval has been added. In the receiving apparatus (200) that receives that signal, a long FFT target section acquiring part (202) acquires, from the received OFDM signal, a long FFT target section that is a target section in which delay waves are to be removed by use of a pilot symbol. A long FFT part (203) performs a fast Fourier transformation of the long FFT target section to convert it to a frequency domain signal. A frequency equalizing part (204) performs a frequency equalization of the long FFT target section by use of an interpolation result of communication line estimation value. A long IFFT part (205) performs an inverse fast Fourier transformation of the long FFT target section as frequency equalized to convert it back to a time domain signal.
    • 一种用于抑制代码之间的干扰的发送装置,接收装置和无线通信方法,同时进一步减少占用信号的冗余部件的比率以提高传输效率。 发送装置(100)发送具有帧结构的信号,其中多个符号遵循已经添加有保护间隔的导频符号。 在接收到该信号的接收装置(200)中,长FFT对象部分获取部(202)从接收到的OFDM信号中获取作为要使用的移除延迟波的目标部分的长FFT对象部 的飞行员符号。 长FFT部(203)对长FFT对象部进行快速傅里叶变换,将其变换为频域信号。 频率均衡部分(204)通过使用通信线路估计值的内插结果来执行长FFT对象部分的频率均衡。 长IFFT部分(205)执行长FFT目标部分的快速傅立叶逆变换作为均衡的频率,以将其转换回到时域信号。
    • 3. 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)。
    • 4. 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。
    • 5. 发明申请
    • TRANSMITTING APPARATUS, RECEIVING APPARATUS, AND WIRELESS COMMUNICATION METHOD
    • 发送装置,接收装置和无线通信方法
    • US20090046787A1
    • 2009-02-19
    • US11813722
    • 2005-12-27
    • Mitsuru UesugiEiji OtaAtsushi SumasuKeisuke Ebiko
    • Mitsuru UesugiEiji OtaAtsushi SumasuKeisuke Ebiko
    • H04L27/28
    • H04L25/022H04L5/0007H04L5/0048H04L25/0232H04L25/03159H04L25/03891H04L2025/03414H04L2025/03522
    • A transmitting apparatus, a receiving apparatus and a wireless communication method for suppressing interference between codes, while further reducing the ratio of redundant components occupying a signal to improve the transmission efficiency. The transmitting apparatus (100) transmits a signal having a frame structure in which a plurality of symbols follow a pilot symbol to which a guard interval has been added. In the receiving apparatus (200) that receives that signal, a long FFT target section acquiring part (202) acquires, from the received OFDM signal, a long FFT target section that is a target section in which delay waves are to be removed by use of a pilot symbol. A long FFT part (203) performs a fast Fourier transformation of the long FFT target section to convert it to a frequency domain signal. A frequency equalizing part (204) performs a frequency equalization of the long FFT target section by use of an interpolation result of communication line estimation value. A long IFFT part (205) performs an inverse fast Fourier transformation of the long FFT target section as frequency equalized to convert it back to a time domain signal.
    • 一种用于抑制代码之间的干扰的发送装置,接收装置和无线通信方法,同时进一步减少占用信号的冗余部件的比率以提高传输效率。 发送装置(100)发送具有帧结构的信号,其中多个符号遵循已经添加有保护间隔的导频符号。 在接收到该信号的接收装置(200)中,长FFT对象部分获取部(202)从接收到的OFDM信号中获取作为要使用的移除延迟波的目标部分的长FFT对象部 的飞行员符号。 长FFT部(203)对长FFT对象部进行快速傅里叶变换,将其变换为频域信号。 频率均衡部分(204)通过使用通信线路估计值的内插结果来执行长FFT对象部分的频率均衡。 长IFFT部分(205)执行长FFT目标部分的快速傅立叶逆变换作为均衡的频率,以将其转换回到时域信号。
    • 7. 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)。
    • 8. 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)。
    • 9. 发明授权
    • Radio communication base station device, radio communication mobile station device, and radio communication method
    • 无线通信基站装置,无线通信移动站装置,无线通信方式
    • US07369621B2
    • 2008-05-06
    • US10516182
    • 2003-07-03
    • Isamu YoshiiMitsuru UesugiToshiyuki UeharaAkihiko Nishio
    • Isamu YoshiiMitsuru UesugiToshiyuki UeharaAkihiko Nishio
    • H04L23/02
    • H04W52/32H04L1/0061H04L1/0083H04L27/34H04L27/3488H04L2001/0098H04W4/06H04W52/267H04W52/322H04W52/327
    • In order to perform appropriate reception quality control on each mobile station in a multimedia broadcast/multicast service, a layered coding section 101 encodes input data by dividing the input data into two layers and obtains a first layer code string and a second layer code string. The first layer code string is input to a CRC code addition section 102 and a CRC code for an error inspection is added thereto at every predetermined block. On the other hand, the second layer code string is input to a CRC code addition section 103 and a CRC code for an error inspection is added thereto at every predetermined block. The first layer code string and the second layer code string with the CRC codes added are input to a layered modulation section 104 and the layered modulation section 104 modulates a plurality of code strings coded by being divided into a plurality of layers in such away that error rates differ hierarchically among the plurality of code strings and a radio section 105 sends the modulated symbol.
    • 为了对多媒体广播/多播服务中的每个移动台执行适当的接收质量控制,分层编码部分101通过将输入数据分成两层来编码输入数据,并获得第一层代码串和第二层代码串。 第一层代码串被输入到CRC码添加部分102,并且在每个预定的块处添加用于错误检查的CRC码。 另一方面,第二层代码串被输入到CRC码附加部分103,并且在每个预定的块处添加用于错误检查的CRC码。 第一层代码串和添加有CRC码的第二层代码串被输入到分层调制部分104,并且分层调制部分104调制通过被分成多个层而编码的多个代码串,这样的错误 速率在多个代码串之间分级地不同,并且无线电部分105发送调制符号。
    • 10. 发明授权
    • Radio communication system and scheduling method
    • 无线电通信系统和调度方法
    • US07062295B2
    • 2006-06-13
    • US10488771
    • 2003-06-13
    • Isamu YoshiiMitsuru UesugiToshiyuki Uehara
    • Isamu YoshiiMitsuru UesugiToshiyuki Uehara
    • H04M1/00
    • H04W72/1231H04B7/0452H04B7/0604H04B7/0628
    • A radio communication system and scheduling method where, when data are transmitted from a plurality of transmit antennas to respective different mobile station apparatuses, all the mobile station apparatuses precisely receive data addressed thereto. A scheduler (104) performs scheduling that determines a data transmit order, depending on the numbers of receive antennas of the respective mobile station apparatuses, and notifies a transmit antennas assignment signal generator (124) of which transmit antenna is assigned which mobile station apparatus's sub-stream as the scheduling result. A number of receive antennas notifying signal decoder (122) decodes the number of receive antennas notifying signals and notifies the number of the receive antennas of each mobile station apparatus to the scheduler (104). The transmit antennas assignment signal generator (124) generates the transmit antennas assignment signal indicating which transmit antenna is assigned which mobile station apparatus's sub-stream.
    • 一种无线电通信系统和调度方法,其中,当从多个发送天线发送数据到各个不同的移动台装置时,所有移动台装置精确地接收寻址到其的数据。 调度器(104)根据各移动站装置的接收天线的数量,进行决定数据发送顺序的调度,并向发送天线的发送天线分配信号发生器(124)通知哪个移动站装置的子 -stream作为调度结果。 多个接收天线通知信号解码器(122)对通知信号的接收天线的数量进行解码,并将每个移动站装置的接收天线的数量通知给调度器(104)。 发射天线分配信号发生器(124)产生指示哪个发射天线被分配哪个移动台设备的子流的发射天线分配信号。