Title:
TIMESTAMP FILTERING METHOD AND APPARATUS
Document Type and Number:
WIPO Patent Application WO/2017/063450
Kind Code:
A1
Abstract:
A timestamp filtering method and apparatus. The method comprises: reading, in a timed manner, timestamps and a correction domain corresponding to the timestamps; calculating a compensation value according to the read timestamps and the correction domain, the compensation value being used for time correction; performing filtering processing on the read timestamps; dividing data obtained after the filtering processing into one or more time windows, and performing linear regression jitter vector estimation on data in each time window; determining whether the timestamps are normal according to the result of the linear regression jitter vector estimation; and if the timestamps are abnormal, filtering the abnormal timestamps, and if the timestamps are normal, performing time correction by using the compensation value. Embodiments of the present invention improve the time synchronization precision of a 1588v2 clock.
More Like This:
Inventors:
LV MING (CN)
LI CHUNHUA (CN)
ZHONG TAO (CN)
LI CHUNHUA (CN)
ZHONG TAO (CN)
Application Number:
PCT/CN2016/096234
Publication Date:
April 20, 2017
Filing Date:
August 22, 2016
Export Citation:
Assignee:
ZTE CORP (CN)
International Classes:
H04J3/00
Domestic Patent References:
| WO2011144135A1 | 2011-11-24 |
Foreign References:
| CN104468014A | 2015-03-25 | |||
| CN102404066A | 2012-04-04 | |||
| CN101674174A | 2010-03-17 |
Attorney, Agent or Firm:
AFD CHINA INTELLECTUAL PROPERTY LAW OFFICE (CN)
Download PDF: