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    • 10. 发明授权
    • Two-way ranging messaging scheme
    • 双向测距消息传输方案
    • US08879407B2
    • 2014-11-04
    • US12875278
    • 2010-09-03
    • Amal EkbalDavid Jonathan JulianPetru Cristian Budianu
    • Amal EkbalDavid Jonathan JulianPetru Cristian Budianu
    • H04W64/00G01S5/14G01S13/76
    • G01S13/765G01S5/14
    • In a two-way ranging scheme where a first apparatus (e.g., device) determines a distance to a second apparatus (e.g., device), specified packets are sent between these apparatuses at specified times to facilitate the determination of the distance. In some aspects, these packets may be defined and/or sent in a manner that enables the apparatuses to detect a leading edge of a received packet with a high degree of accuracy. For example, an apparatus may transmit a packet a defined period of time after transmitting or receiving another packet. In addition, a packet may comprise a defined symbol sequence that is used by an apparatus that receives the packet to identify a leading edge of the packet.
    • 在第一设备(例如,设备)确定到第二设备(例如,设备)的距离的双向测距方案中,在指定时间在这些设备之间发送指定的分组,以便于确定距离。 在一些方面,这些分组可以以能够使设备以高精度检测接收分组的前沿的方式被定义和/或发送。 例如,设备可以在发送或接收另一个分组之后在限定的时间段内发送分组。 此外,分组可以包括由接收分组以识别分组的前沿的装置使用的定义的符号序列。