公开(公告)号：US10560912B2

公开(公告)日：2020-02-11

申请号：US15566751

申请日：2015-04-17

Applicant: Provenance Asset Group LLC

Inventor： Enrico Rantala ,  Ilari Teikari ,  Jarkko Kneckt ,  Mika Kasslin ,  Janne Marin ,  Olli Alanen

IPC: H04W56/00 ,  G01S5/14 ,  H04L27/26 ,  G01S13/74 ,  G01S11/02 ,  G01S11/08

Abstract: A method and apparatus for detecting, by a first device, a timing measurement frame from a second device, the timing measurement frame having a plurality of time measurement samples, wherein at least the first of the measurement samples has a transmit timestamp value; determining transmit timing values for the subsequent measurement samples; applying a receive timestamp value to each of the received measurement samples; and determining a relative clock drift between a clock of the first device and a clock of the second device by comparing the receive timestamp values with transmit timing values of one or more measurement samples contained in the frame.