Title:
METHOD FOR ACQUIRING PHASE DISCRIMINATION SIGNAL IN CLOCK RECOVERY CIRCUIT AND PHASE DISCRIMINATOR
Document Type and Number:
WIPO Patent Application WO/2018/035719
Kind Code:
A1
Abstract:
Embodiments of the present application provide a method for acquiring a phase discrimination signal in a clock recovery circuit and a phase discriminator, which are used for acquiring a correct phase discrimination signal. The technical solution provided by the embodiments of the present application is as follows: the phase discriminator receives a sampling sequence sent by an analog-to-digital converter (ADC), the sampling sequence being obtained by the ADC by means of sampling, according to an actual sampling rate, an electrical signal received by the ADC, and the electrical signal carrying a pre-configured training sequence; the phase discriminator correlates the sampling sequence with an alignment sequence to determine a first position and a second position, the first position and the second position being positions of a starting point of the training sequence in the sampling sequence, the first position differing from the second position by a positive integer number of training sequence periods in a starting point of the sampling sequence, and the alignment sequence being generated by the phase discriminator according to the training sequence and a target sampling rate of the ADC; and the phase discriminator obtains a phase discrimination signal according to a difference parameter between the first position and the second position.
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Inventors:
LIU LING (CN)
WAN WENTONG (CN)
WAN WENTONG (CN)
Application Number:
PCT/CN2016/096387
Publication Date:
March 01, 2018
Filing Date:
August 23, 2016
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04L7/00; H04L7/033
Foreign References:
| CN1471232A | 2004-01-28 | |||
| CN101820340A | 2010-09-01 | |||
| CN103547344A | 2014-01-29 | |||
| CN103516640A | 2014-01-15 | |||
| US20090245448A1 | 2009-10-01 | |||
| CN1309483A | 2001-08-22 | |||
| CN102752097A | 2012-10-24 |
Other References:
See also references of EP 3496327A4
Attorney, Agent or Firm:
SHENPAT INTELLECTUAL PROPERTY AGENCY (CN)
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