公开(公告)号：US09143967B2

公开(公告)日：2015-09-22

申请号：US14322800

申请日：2014-07-02

Applicant: QUALCOMM Incorporated

Inventor： Qifan Chen ,  Kai Shi ,  Ning Zhang

IPC: H04L12/26 ,  H04W24/08 ,  G01S7/40 ,  G01S13/76 ,  H04J3/06

CPC classification number: H04W24/08 ,  G01S7/40 ,  G01S13/765 ,  H04J3/0667

Abstract: A method and apparatus for improving the accuracy of a round trip time (RTT) estimate between a first device and a second device are disclosed. The method involves calculating an acknowledgement correction factor and a unicast correction factor. These correction factors are used to compensate for symbol boundary time errors resulting from multipath effects.

Abstract translation: 公开了一种用于提高第一设备和第二设备之间的往返时间（RTT）估计精度的方法和设备。 该方法涉及计算确认校正因子和单播校正因子。 这些校正因子用于补偿由多径效应引起的符号边界时间误差。