公开(公告)号：WO2013074424A4

公开(公告)日：2013-07-11

申请号：PCT/US2012064524

申请日：2012-11-09

Applicant: QUALCOMM INC

Inventor： CHEN QIFAN ,  SHI KAI ,  ZHANG NING

IPC: H04W64/00 ,  G01S5/02 ,  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。