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    • 3. 发明授权
    • Fixed wireless access system and apparatus therefor
    • 固定无线接入系统及其设备
    • US06731905B2
    • 2004-05-04
    • US09801728
    • 2001-03-09
    • Atsushi OginoHideya SuzukiTomoaki IshifujiNobukazu Doi
    • Atsushi OginoHideya SuzukiTomoaki IshifujiNobukazu Doi
    • H04B715
    • H04B7/155
    • In a P-MP fixed wireless access system using quasi-millimeter and millimeter wave bands, a relaying path is autonomously set up for subscriber stations without the need for additional provision of a repetition radio circuit using a costly MMIC. A subscriber station in the fixed wireless access system is provided with a repeating function for relaying signals between a different subscriber station and a base station, a buffer memory for temporarily storing signals to be communicated therebetween, and a table for registering information for identifying a relaying path between an own reference wireless station and a lower-level subscriber station for signal repetition. The base station is provided with a table in which, in order to perform signal communication with an arbitrary subscriber registered in the base station, routing information is registered for determining whether or not to set up a relaying path via a different subscriber station registered in the base station.
    • 在使用准毫米波段和毫米波段的P-MP固定无线接入系统中,为用户站自主设置中继路径,而无需使用昂贵的MMIC额外提供重复无线电电路。 在固定无线接入系统中的用户台被提供有用于在不同的用户台和基站之间中继信号的重复功能,用于临时存储要在其间通信的信号的缓冲存储器和用于登记用于识别中继的信息的表 用于信号重复的自身参考无线站和较低级用户站之间的路径。 基站设置有表格,其中为了与在基站中登记的任意用户进行信号通信,登记路由信息以确定是否经由登记在该基站中的不同用户站建立中继路径 基站。
    • 7. 发明授权
    • Method for measuring distance and position using spectrum signal, and an equipment using the method
    • 使用频谱信号测量距离和位置的方法,以及使用该方法的设备
    • US06459402B1
    • 2002-10-01
    • US09640018
    • 2000-08-17
    • Katsuhiko TsuneharaNobukazu DoiMikio KuwaharaTomoaki Ishifuji
    • Katsuhiko TsuneharaNobukazu DoiMikio KuwaharaTomoaki Ishifuji
    • G01S1308
    • G01S5/0215G01S1/026G01S1/045G01S5/10H04B1/70755H04B2201/70715
    • Under a multi-path environment, the receive timing for an incoming wave of the minimum propagation delay time cannot be accurately measured in the prior art. By using the delay profile created by delay profile creating section 102 and the first threshold value 330 received from the first threshold value calculation section 105, the first threshold value timing detection section 103 selects only the earliest receive timing exceeding the first threshold value, from all the timings that the correlation value in the delay profile becomes a maximum. By using the receive timing and the second threshold value 331 received from the second threshold value calculation section 107, the reference timing calculation section 106 selects the reference timing required for calculating the receive timing for the incoming wave of the minimum propagation delay time. The timing delayed by a previously set timing behind said reference timing is sent from the receive timing calculation section 108 as the receive timing 113 of the incoming wave of the minimum propagation delay time.
    • 在多路径环境下,在现有技术中不能精确地测量最小传播延迟时间的入射波的接收定时。 通过使用从第一阈值计算部105接收到的延迟分布创建部102和第一阈值330所产生的延迟分布,第一阈值定时检测部103从全部仅选择超过第一阈值的最早的接收定时 延迟分布中的相关值变为最大的定时。 通过使用从第二阈值计算部107接收的接收定时和第二阈值331,基准定时计算部106选择计算最小传播延迟时间的入射波的接收定时所需的基准定时。 从接收定时计算部108发送作为最小传播延迟时间的输入波的接收定时113延迟的参考定时之后的先前设定的定时的定时。