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    • 91. 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。
    • 93. 发明授权
    • Device for canceling interference
    • 消除干扰的设备
    • US06967991B1
    • 2005-11-22
    • US09701535
    • 2000-03-28
    • Hiroki HagaMitsuru UesugiKatsuhiko Hiramatsu
    • Hiroki HagaMitsuru UesugiKatsuhiko Hiramatsu
    • H04J13/00H04B1/10H04B1/7107H04B1/707
    • H04B1/71075H04B1/7115H04B1/712
    • A delay device 102 sends reception signals to a subtraction device 113 after delaying it by a predetermined time. Matched filters 103-1˜103-N perform despreading operation of the reception signals. RAKE-combining devices 104-1˜104-N perform RAKE-combining operation of the signals after the despreading operation. Discrimination devices 105-1˜105-N perform hard decision of the signals after the RAKE-combining operation. A decision value buffer 107 stores the signals after the hard decision. Likelihood calculation devices 106-1˜106-N calculate likelihood of all the symbols. A likelihood buffer 108 stores calculated likelihood. A controlling part 110 controls a switch 109. A ranking decision device 111 decides a ranking based on the likelihood. A re-spreading device 112 performs re-spreading operation of a symbol with the highest likelihood ranking. And a subtraction device 113 subtracts the re-spreading result from the delayed reception signals.
    • 延迟装置102在将其延迟预定时间之后将接收信号发送到减法装置113。 匹配滤波器103-1〜103 -N执行接收信号的解扩操作。 RAKE组合设备104-1〜104 -N在解扩操作之后执行信号的RAKE组合操作。 识别装置105-1〜105 -N在RAKE组合操作之后执行信号的硬判决。 决策值缓冲器107存储硬判决之后的信号。 似然计算装置106-1〜106 -N计算所有符号的可能性。 似然缓冲器108存储计算的似然性。 控制部分110控制开关109。 排序决定装置111根据似然性判定排序。 重新扩展装置112执行具有最高似然等级的符号的重新扩展操作。 并且减法装置113从延迟的接收信号中减去再扩频结果。
    • 99. 发明授权
    • Synchronization equipment
    • 同步设备
    • US06289064B1
    • 2001-09-11
    • US08810767
    • 1997-03-05
    • Katsuhiko HiramatsuMitsuru UesugiSadaki FutagiHiroshi SuzukiHitoshi Yoshino
    • Katsuhiko HiramatsuMitsuru UesugiSadaki FutagiHiroshi SuzukiHitoshi Yoshino
    • H04L700
    • H04L7/042H04L7/08
    • A synchronization equipment performs correlation processing between a first known pattern included in a received signal and a second known pattern, and detects reception timing of the received signal. A correlation value computing portion computes a correlation value between the first known pattern and the second known pattern at every reception time. A reception timing detection portion compares the computed related value with a predetermined threshold value, determines the reception time when the correlation value becomes larger than the threshold value to be the reception timing of a received signal, and, after this determination, suspends the comparison between the correlation value and the threshold value, and holds the reception time determined to be the reception timing.
    • 同步设备执行包括在接收信号中的第一已知模式与第二已知模式之间的相关处理,并检测接收信号的接收定时。 相关值计算部分在每个接收时间计算第一已知模式和第二已知模式之间的相关值。 接收定时检测部分将计算出的相关值与预定阈值进行比较,当相关值变得大于阈值以确定接收信号的接收定时时的接收时间,并且在该确定之后,暂停比较 相关值和阈值,并将接收时间确定为接收定时。
    • 100. 发明授权
    • A/D conversion apparatus having high level reception enhancement
    • 具有高等级接收增强的A / D转换装置
    • US06100832A
    • 2000-08-08
    • US15404
    • 1998-01-29
    • Mitsuru Uesugi
    • Mitsuru Uesugi
    • H03M1/12H03M1/18H03M1/62H03M1/06
    • H03M1/188
    • A plurality of amplifiers having different amplification factors are provided and a received signals and amplified output signal are all sampled by A/D converters. A selector selects, from the sampled signal, a signal from which accuracy can be attained exceedingly and is not saturated upon sampling, so that there can be provided an A/D conversion apparatus which does not require AGC control and conversion calculation of data and can obtain desired accuracy. Selection logic can use comparison of maximum values and logical sums of absolute values of the sampled values, levels which are not amplified or the like.
    • 提供了具有不同放大系数的多个放大器,并且接收到的信号和放大的输出信号都被A / D转换器采样。 选择器从采样信号中选择可以获得极高精度并且在采样时不饱和的信号,从而可以提供不需要AGC控制和数据转换计算的A / D转换装置,并且可以 获得所需的准确度。 选择逻辑可以使用采样值的绝对值的最大值和逻辑和的比较,不被放大的电平等。