The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 04, 2019
Filed:
Dec. 22, 2017
Applicant:
Huawei Technologies Co., Ltd., Shenzhen, CN;
Inventor:
Yuanda Huang, Shenzhen, CN;
Assignee:
HUAWEI TECHNOLOGIES CO., LTD., Shenzhen, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 10/06 (2006.01); H04J 14/06 (2006.01); H04B 10/2507 (2013.01); H04L 7/00 (2006.01); H04B 10/61 (2013.01);
U.S. Cl.
CPC ...
H04J 14/06 (2013.01); H04B 10/2507 (2013.01); H04B 10/6165 (2013.01); H04B 10/6166 (2013.01); H04L 7/0075 (2013.01);
Abstract
A phase estimation method and apparatus for a polarization multiplexing system, where the method includes performing, by a receive end, state of polarization (SOP) rotation on a received first SOP signal and second SOP signal according to an angle of previous SOP rotation, extracting a pilot using adaptive filtering, and performing carrier phase estimation according to the extracted pilot. This prevents a noise signal from being extracted and can make a carrier phase estimation result more accurate.