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Title:
CLOCK PHASE RECOVERY APPARATUS AND METHOD, AND CHIP
Document Type and Number:
WIPO Patent Application WO/2019/192300
Kind Code:
A1
Abstract:
Embodiments of the present application provide a clock phase recovery apparatus and method, and a chip. The apparatus comprises an ADC, a chromatic dispersion compensation unit, a digital interpolator, an MIMO balance unit, and a clock offset phase obtaining unit. The ADC is connected to the chromatic dispersion compensation unit, the chromatic dispersion compensation unit is connected to a first input end of the digital interpolator, an output end of the digital interpolator is connected to an input end of the MIMO balance unit, an output end of the MIMO balance unit is connected to an input end of the clock offset phase obtaining unit, and an output end of the clock offset phase obtaining unit is connected to a second input end of the digital interpolator; the digital interpolator is configured to adjust, according to first offset phase information output by the clock offset phase obtaining unit, a signal subjected to chromatic dispersion compensation output by the chromatic dispersion compensation unit, so that a signal output by the digital interpolator is a signal at an optimal sampling moment. The clock phase delay is reduced by decreasing the number of modules in a feedback loop.

Inventors:
WAN, Wentong (Huawei Administration Building, Bantian Longgang Distric, Shenzhen Guangdong 9, 518129, CN)
Application Number:
CN2019/078028
Publication Date:
October 10, 2019
Filing Date:
March 13, 2019
Export Citation:
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Assignee:
HUAWEI TECHNOLOGIES CO., LTD. (Huawei Administration Building, Bantian Longgang Distric, Shenzhen Guangdong 9, 518129, CN)
International Classes:
H04L7/00
Domestic Patent References:
WO2016106548A12016-07-07
Foreign References:
CN102612811A2012-07-25
US20070009074A12007-01-11
Attorney, Agent or Firm:
LEADER PATENT & TRADEMARK FIRM (8F-6, Bldg. A Winland International Center,No. 32 Xizhimen North Street, Haidian District, Beijing 2, 100082, CN)
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