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Patent Searching and Data


Title:
TIME SYNCHRONIZATION METHOD AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/000432
Kind Code:
A1
Abstract:
A time synchronization method and device. The time synchronization method comprises: a receiving end device receiving a first time stamp sent by a sending end device and receiving a first frame header signal sent by the sending end device, wherein the first time stamp indicates a first moment when a first channel medium conversion module sends the first frame header signal, and the moment when the receiving end device receives the first frame header signal is a second moment; sending a second frame header signal to the sending end device, wherein the moment when the receiving end device sends the second frame header signal is a third moment; receiving a fourth time stamp sent by the sending end device, wherein the fourth time stamp indicates a fourth moment when the sending end device receives the second frame header signal; and carrying out time synchronization with the sending end device according to the first moment, the second moment, the third moment and the fourth moment. By means of implementing the embodiments of the present invention, the time synchronization accuracy can be improved.

Inventors:
WANG JINHUI (CN)
LIU SONG (CN)
NIU HONGWEI (CN)
QI YUNLEI (CN)
Application Number:
PCT/CN2017/091267
Publication Date:
January 03, 2019
Filing Date:
June 30, 2017
Export Citation:
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Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04J3/06
Foreign References:
CN102957489A2013-03-06
CN102387155A2012-03-21
CN101499871A2009-08-05
CN202772918U2013-03-06
US20070223496A12007-09-27
Other References:
See also references of EP 3637640A4
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (CN)
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