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    • 22. 发明申请
    • WIRELESS COMMUNICATION APPARATUS, WIRELESS COMMUNICATION SYSTEM AND WIRELESS COMMUNICATION METHOD
    • 无线通信设备,无线通信系统和无线通信方法
    • US20100290548A1
    • 2010-11-18
    • US12809701
    • 2008-10-23
    • Masayuki HoshinoKatsuhiko HiramatsuKenichi Miyoshi
    • Masayuki HoshinoKatsuhiko HiramatsuKenichi Miyoshi
    • H04K1/10
    • H04B7/0452H04B7/0417H04B7/0426H04B7/0632H04L1/0025H04L1/0026H04L1/0036H04W72/08
    • When power scaling is applied to multi-user MIMO, a reduction in transmission rate is suppressed and transmission efficiency is improved. When signals are transmitted through spatial multiplexing from a wireless base station 11 to a plurality of pieces of user equipment 12 and 13, notification of a transmission parameter (MCS) of the distant user equipment (UE-B) 13 is provided as control information to the adjacent user equipment (UE-A) 12. The user equipment 12 calculates, based on the received control information, a reception quality (CQI) after cancellation of a signal serving as an interference signal and destined for the other user equipment 13, and feeds back the calculated result to the wireless base station 11. Based on this feedback, the wireless base station 11 sets a transmission parameter (MCS) of each piece of the user equipment 12 and 13 using the CQI after the cancellation, and transmits signals intended for respective users through spatial multiplexing after performing power distribution between the users by power scaling.
    • 当对多用户MIMO进行功率缩放时,传输速率的降低被抑制并且传输效率提高。 当通过空中复用将信号从无线基站11发送到多个用户设备12和13时,提供远程用户设备(UE-B)13的传输参数(MCS)的通知作为控制信息 相邻用户设备(UE-A)12。用户设备12基于接收到的控制信息计算消除用作干扰信号并发往另一用户设备13的信号后的接收质量(CQI),以及 将计算结果反馈给无线基站11.基于该反馈,无线基站11在消除之后使用CQI来设置用户设备12和13的每一段的传输参数(MCS),并发送预期的信号 通过功率缩放在用户进行功率分配之后通过空间复用对各个用户进行。
    • 23. 发明申请
    • Wireless Communication Device and Transmission Method
    • 无线通信设备和传输方法
    • US20100248613A1
    • 2010-09-30
    • US12675751
    • 2008-09-05
    • Kenichi MiyoshiHidetoshi SuzukiTakashi AramakiYuichi KobayakawaKatsuhiko Hiramatsu
    • Kenichi MiyoshiHidetoshi SuzukiTakashi AramakiYuichi KobayakawaKatsuhiko Hiramatsu
    • H04B3/36
    • H04W88/04
    • A wireless communication device, e.g., a mobile station, capable of performing its communication and relay processing for another mobile station, when requested, at the same time without stopping the communication and the relay processing. In the device, an outgoing/incoming call request detection unit (106) detects an outgoing/incoming call request indicating that an outgoing call of the signal of the mobile station or an incoming call is requested from a signal inputted from an upper-layer processing unit (105). A relay request detection unit (108) detects a relay request signal indicating that an MS1 requests an MS2 for relay to a base station from a demodulated relay signal inputted from a relay signal demodulation unit (107). A communication rate determination unit (109) determines the communication rate so as to simultaneously transmit both the signal of the mobile station and the relay signal when a signal indicating that an outgoing/incoming call request is detected is inputted from the outgoing/incoming call request detection unit (106) or a signal indicating that a relay request signal is detected is inputted from the relay request detection unit (108).
    • 无线通信装置,例如移动台,能够在不停止通信和中继处理的情况下同时请求时对其他移动台进行通信和中继处理。 在该设备中,呼出/呼入呼叫请求检测单元(106)从上层处理中输入的信号中检测出呼出/呼入呼叫请求,该呼出/呼入呼叫请求指示呼叫移动台的信号或来电呼叫 单元(105)。 中继请求检测单元(108)根据从中继信号解调单元(107)输入的解调后的中继信号,检测指示MS1向基站请求中继的MS2的中继请求信号。 通信速率确定单元(109)确定通信速率,以便当从输入/输入呼叫请求输入指示检测到呼出/呼入呼叫请求的信号时,同时发送移动台的信号和中继信号两者 检测单元(106)或指示检测到中继请求信号的信号从中继请求检测单元(108)输入。
    • 26. 发明申请
    • Communication terminal apparatus and base station apparatus
    • 通信终端装置和基站装置
    • US20050002358A1
    • 2005-01-06
    • US10902580
    • 2004-07-30
    • Kenichi MiyoshiKatsuhiko Hiramatsu
    • Kenichi MiyoshiKatsuhiko Hiramatsu
    • H04L27/18H04B7/26H04L1/00H04L27/00H04L27/34H04W28/18H04Q7/00
    • H04L1/0015H04L1/0003H04L1/0025
    • PL demodulation section 203 demodulates pilot signals of a received signal. SIR detection section 205 detects the reception quality of the demodulated pilot signals. fd detection section 206 detects a Doppler frequency using the demodulated pilot signals. Requested modulation method deciding section 207 decides a modulation method to be requested to the base station using the reception quality of pilot signals and the detected Doppler frequency. Command generation section 208 generates a command corresponding to the decided modulation method. Adaptive demodulation section 204 performs demodulation processing on the received signal using the demodulation method corresponding to the modulation method decided by requested modulation method deciding section 207. This makes it possible to maintain good reception quality even in a fading environment.
    • PL解调单元203对接收信号的导频信号进行解调。 SIR检测部件205检测解调的导频信号的接收质量。 fd检测部206使用解调的导频信号来检测多普勒频率。 请求调制方式决定部207使用导频信号的接收质量和检测到的多普勒频率来决定向基站请求的调制方式。 命令生成部208生成与决定的调制方式对应的命令。 自适应解调部204使用与由请求调制方式决定部207决定的调制方式相对应的解调方式,对接收信号进行解调处理。即使在衰落环境中也能够保持良好的接收质量。
    • 27. 发明授权
    • Base station apparatus and radio communication method
    • 基站装置和无线通信方法
    • US06477213B1
    • 2002-11-05
    • US09317614
    • 1999-05-25
    • Kenichi MiyoshiKatsuhiko HiramatsuRyusuke Kiryu
    • Kenichi MiyoshiKatsuhiko HiramatsuRyusuke Kiryu
    • H04B710
    • H04B7/0874H04B7/0848
    • Antenna received signals 101-1 to 101-n are input to weighting coefficient calculation section 103. Weighting coefficient calculation section 103 determines weighting coefficients so as to eliminate interference using antenna received signals 101-1 to 101-n and known signal and combines them into weighted/combined signal 107. Envelope variation detection section 116 detects variations in the envelope of the weighted/combined signal. Interference mixing time detection section 108 detects the interference mixing time from the output of envelope variation detection section 116. Envelope variation detection sections 117 to 119 detect envelope variations of the received signals. Combination system control section 113 switches switch section 114 so that the received signal with the least envelope variation may be output at the interference mixing time.
    • 天线接收信号101-1至101-n被输入到加权系数计算部分103.加权系数计算部分103确定加权系数以消除使用天线接收信号101-1至101-n的干扰和已知信号,并将它们组合成 加权/组合信号107.包络变化检测部分116检测加权/合成信号的包络线的变化。 干扰混合时间检测部分108从包络变化检测部分116的输出检测干扰混合时间。包络变化检测部分117至119检测接收信号的包络变化。 组合系统控制部分113切换开关部分114,使得可以在干扰混合时间输出具有最小包络线变化的接收信号。
    • 29. 发明申请
    • MOBILE COMMUNICATION SYSTEM
    • 移动通信系统
    • US20110195669A1
    • 2011-08-11
    • US13090821
    • 2011-04-20
    • Kenichi MiyoshiKatsuhiko HiramatsuTakahisa AoyamaAtsushi SumasuOsamu Kato
    • Kenichi MiyoshiKatsuhiko HiramatsuTakahisa AoyamaAtsushi SumasuOsamu Kato
    • H04W24/08
    • H04W28/22H04W24/00H04W52/0229H04W52/0245H04W52/0258H04W52/24H04W52/26H04W72/12H04W72/1284Y02D70/00
    • A mobile communication system which is capable of, when carrying out mobile communication using a shared channel, increasing in efficiency of transmission timing of the data transmission rate request value to prevent wasteful power consumption and hence reduce power consumption. A mobile station apparatus of the mobile communication system measures CIR of the received signal from a base station apparatus at a CIR measuring section, and decides the data transmission rate request value corresponding to the measured CIR value at a rate request value deciding section. Also, it detects an error of the received signal at a CRC section, and, when no error is found, calculates a difference between the average data transmission rate from a base station apparatus and the data transmission request value at a rate request value transmission controlling section. Then, it transmits the data transmission rate request value to the base station apparatus only when the obtained difference is larger than a threshold value.
    • 能够在使用共享信道进行移动通信时能够提高数据传输速率请求值的发送定时的效率的移动通信系统,以防止浪费的功率消耗并因此降低功耗。 移动通信系统的移动站装置在CIR测量部分测量来自基站装置的接收信号的CIR,并且在速率请求值确定部分确定与测量的CIR值对应的数据传输速率请求值。 此外,它检测在CRC部分的接收信号的错误,并且当没有发现错误时,以速率请求值传输控制计算来自基站装置的平均数据传输速率与数据传输请求值之间的差异 部分。 然后,只有当获得的差值大于阈值时,才向基站装置发送数据传输速率请求值。