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Title:
PHASE DETECTION METHOD, PHASE DETECTION CIRCUIT, AND CLOCK RECOVERY DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/205670
Kind Code:
A1
Abstract:
Disclosed in embodiments of the present application are a phase detection method, a phase detection circuit, and a clock recovery device. The method comprises: receiving a first signal, and performing a (2M-1) level decision on the first signal to obtain a decision result, wherein the first signal is a (2M-1) level signal, and M is a positive integer; acquiring a response amplitude parameter of a transmission channel; extracting clock phase information in the first signal according to the first signal, the decision result, and the response amplitude parameter; determining output clock phase information according to at least three decision results and at least three pieces of clock phase information in at least three symbol periods. According to the method, when a clock phase is tuned to a pulse response edge, stable phase detection gains can be achieved.

Inventors:
LU, Yuchun (Huawei Administration Building, Bantian Longgang Distric, Shenzhen Guangdong 9, 518129, CN)
Application Number:
CN2018/121603
Publication Date:
October 31, 2019
Filing Date:
December 17, 2018
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
Foreign References:
US9712349B12017-07-18
CN1464636A2003-12-31
CN102480446A2012-05-30
US20100329323A12010-12-30
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (Room 1508, Huihua Commercial & Trade BuildingNo. 80, XianLie Zhong Road, Yuexiu Distric, Guangzhou Guangdong 0, 510070, CN)
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