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    • 1. 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。
    • 2. 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)。
    • 3. 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。
    • 5. 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)。
    • 6. 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)。
    • 7. 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。
    • 9. 发明授权
    • Mobile communication system, network management apparatus, macrocell base station apparatus, and interference control method
    • 移动通信系统,网络管理装置,宏小区基站装置和干扰控制方法
    • US08700046B2
    • 2014-04-15
    • US13389312
    • 2010-08-18
    • Keisuke EbikoAkito FukuiToyoki Ue
    • Keisuke EbikoAkito FukuiToyoki Ue
    • H04W40/00
    • H04W72/082H04W24/10H04W84/045
    • A mobile communication system wherein the upstream radio channel interference of a macrocell connection terminal with a femtocell base station can be reduced while the consumption of radio resources caused by increase in signaling is being suppressed. The macrocell connection terminal (401) performs, based on an instruction from a macrocell base station (402), an upstream channel transmission and further reports a peripheral-femtocell detection result obtained by a measuring unit to the macrocell base station. The macrocell base station (402) instructs the terminal to perform a peripheral-femtocell detection. The identifier of the terminal and the peripheral-femtocell detection result obtained by the terminal are transmitted to a network management apparatus (404). An interference reduction instruction (frequency band allocation) and the identifier of the terminal to be interference-controlled are received from the network management apparatus, and the frequency band allocation in the upstream channel transmission of the terminal to be interference-controlled is so controlled as to satisfy the interference reduction instruction.
    • 可以减少宏小区连接终端与毫微微小区基站的上行无线信道干扰的移动通信系统,同时抑制由信令增加引起的无线资源的消耗。 宏单元连接终端(401)根据来自宏小区基站(402)的指示执行上行信道传输,并且向宏小区基站进一步报告由测量单元获得的外围毫微微小区检测结果。 宏小区基站(402)指示终端执行外围毫微微小区检测。 由终端获得的终端的标识符和外围毫微微小区检测结果被发送到网络管理装置(404)。 从网络管理装置接收干扰减少指示(频带分配)和要进行干扰控制的终端的标识符,将被干扰控制的终端的上行信道传输中的频带分配控制为 以满足干扰减少指令。
    • 10. 发明授权
    • Radio communication base station device and transmission power control method
    • 无线通信基站装置和发射功率控制方法
    • US08417280B2
    • 2013-04-09
    • US13128849
    • 2009-11-27
    • Keisuke Ebiko
    • Keisuke Ebiko
    • H04B7/00
    • H04B1/7097H04B17/21H04B2201/70702H04J11/0056H04W16/16H04W52/146H04W52/242H04W52/244H04W52/30
    • Provided are a base station device and a transmission power control method that reduce interference with an uplink radio channel from a femto-connected terminal to a macrocell base station while avoiding an increase in signaling. A measurement unit (103) measures the macrocell signal reception level, and a propagation loss estimating unit (104) estimates propagation loss between a HUE and a HNB based on the HUE signal reception power, for example. A judgment unit (105) performs a first comparison of the macrocell signal reception level with a first threshold value and a second comparison of the propagation loss with a second threshold value, and an adjustment unit (106) generates a command to reduce the maximum value that is possible for the target control value for the HNB total reception power when the macrocell signal reception level is at least the first threshold value and the propagation loss is at least the second threshold value. A scheduler (107) determined a transmission rate allocated to the HUE based on the HUE signal and the maximum value that is possible for the target control value for the HNB total reception power.
    • 提供了一种在避免信令增加的同时减少对从毫微微连接终端到宏小区基站的上行链路无线信道的干扰的基站装置和发送功率控制方法。 测量单元(103)测量宏小区信号接收电平,并且传播损耗估计单元(104)例如基于HUE信号接收功率来估计HUE和HNB之间的传播损耗。 判断单元(105)执行宏单元信号接收电平与第一阈值和传播损耗与第二阈值的第二比较的第一比较,并且调整单元(106)生成减小最大值的命令 当宏小区信号接收电平至少为第一阈值且传播损耗至少为第二阈值时,对于HNB总接收功率的目标控制值是可能的。 调度器(107)基于HUE信号确定分配给HUE的传输速率和针对HNB总接收功率的目标控制值可能的最大值。