Title:
METHOD, APPARATUS AND SYSTEM FOR TIME SYNCHRONIZATION
Document Type and Number:
WIPO Patent Application WO/2019/127447
Kind Code:
A1
Abstract:
Provided are a method, apparatus and system for time synchronization. The method can improve the accuracy of time synchronization. The method comprises: a slave node receiving a first signal from a master node; the slave node sampling the first signal so as to obtain a first sample; the slave node quantifying the first sample so as to obtain a quantized form of the first sample; the slave node detecting a first synchronization sequence from the quantized form of the first sample, wherein the time at which the first synchronization sequence is detected is T2; the slave node receiving first information from the master node, wherein the first information is used for indicating the time T1 at which the master node sends the first synchronization sequence; the slave node sending a second synchronization sequence to the master node, wherein the time at which the second synchronization sequence is sent is T3; the slave node receiving second information from the master node, wherein the second information is used to indicate the time T4 at which the master node detects a quantized form of the second synchronization sequence; and the slave node carrying out time synchronization according to T1, T2, T3 and T4.
Inventors:
SHI XINGJIAN (CN)
WANG JINHUI (CN)
XU CHUAN (CN)
WANG JINHUI (CN)
XU CHUAN (CN)
Application Number:
PCT/CN2017/120075
Publication Date:
July 04, 2019
Filing Date:
December 29, 2017
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04J3/06
Foreign References:
| CN105680975A | 2016-06-15 | |||
| CN101288258A | 2008-10-15 | |||
| CN106603452A | 2017-04-26 | |||
| US20070266119A1 | 2007-11-15 | |||
| US20150117251A1 | 2015-04-30 |
Other References:
See also references of EP 3723307A4
Attorney, Agent or Firm:
LONGSUN LEAD IP LTD. (CN)
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