Title:
FREQUENCY SYNCHRONIZATION METHOD AND SLAVE CLOCK
Document Type and Number:
WIPO Patent Application WO/2018/082665
Kind Code:
A1
Abstract:
Provided is a frequency synchronization method. The method comprises: a slave clock receives a first pulse signal and a second pulse signal; the slave clock determines that a frequency deviation of the slave clock with respect to a master clock is equal to a first frequency deviation according to a first phase difference, a second phase difference, a first delay and a second delay, wherein the first phase difference is a difference between a phase of a third pulse signal generated by the slave clock and a phase of the first pulse signal received by the slave clock, and the second phase difference is a difference between a fourth pulse signal generated by the slave clock and a phase of the second pulse signal received by the slave clock; and the slave clock calibrates the frequency of the slave clock according to the first frequency deviation. Also disclosed is a corresponding slave clock. The foregoing solution helps improve precision of frequency synchronization.
Inventors:
LV JINGFEI (CN)
WANG JINHUI (CN)
XU CHUAN (CN)
WANG JINHUI (CN)
XU CHUAN (CN)
Application Number:
PCT/CN2017/109377
Publication Date:
May 11, 2018
Filing Date:
November 03, 2017
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04L7/00
Domestic Patent References:
| WO2015049478A1 | 2015-04-09 |
Foreign References:
| CN103814338A | 2014-05-21 | |||
| CN103013970A | 2013-04-03 | |||
| CN101039145A | 2007-09-19 | |||
| US20160170437A1 | 2016-06-16 |
Other References:
See also references of EP 3531610A4
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