SIGNAL PROCESSING METHOD, NODE AND DEVICE

WIPO Patent Application WO/2016/165132

A1

The present invention relates to the technical field of communications. Disclosed is a signal processing method. The method comprises: receiving an optical signal, converting the optical signal into an electrical signal, and converting the electrical signal into a digital signal; extracting, from the digital signal, a left sideband pilot and a right sideband pilot, calculating the power of the left sideband pilot and the power of the right sideband pilot, and obtaining phase detection information by performing calculation according to a power sum of the left sideband pilot and a power sum of the right sideband pilot; inserting the phase detection information into an optical signal to be transmitted, and transmitting the optical signal inserted with the phase detection information. In an embodiment of the present invention, the phase detection information is obtained, via insertion of a pilot and calculation of the power of the left sideband pilot and the power of the right sideband pilot with a power function, by performing calculation according to the power sum of the left sideband pilot and the power sum of the right sideband pilot. The obtained phase detection information can accurately reflect a frequency offset of a transmission signal from a second node, enabling the second node to accurately adjust the frequency of the transmission signal.

HUANG YUANDA (CN)
LIU LING (CN)
DENG NING (CN)
HE JIANFEI (CN)
LI LIANGCHUAN (CN)

PCT/CN2015/076887

October 20, 2016

April 17, 2015

Click for automatic bibliography generation  

HUAWEI TECH CO LTD (CN)

H04L25/03

CN103312645A	2013-09-18
CN103733516A	2014-04-16
CN102215079A	2011-10-12
CN1190184A	1998-08-12
US7412166B2	2008-08-12
US7346279B1	2008-03-18

View/Download PDF      PDF Help

Previous Patent: INFORMATION FEEBACK METHOD, DEVICE, AND SYSTEM

Next Patent: POWER FACTOR CORRECTION STAGE CONTROL DURING START-UP FOR EFFICIENT USE OF NEGATIVE TEMPERATURE COEF...