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1. (WO2018058576) DATA MODULATION METHOD AND ENCODER

Pub. No.:    WO/2018/058576    International Application No.:    PCT/CN2016/101207
Publication Date: Fri Apr 06 01:59:59 CEST 2018 International Filing Date: Sat Oct 01 01:59:59 CEST 2016
IPC: H04B 10/00
Applicants: HUAWEI TECHNOLOGIES CO., LTD.
华为技术有限公司
Inventors: JIA, Wei
贾伟
DENG, Ning
邓宁
ZHAO, Jian
赵建
YU, Yukui
余玉揆
Title: DATA MODULATION METHOD AND ENCODER
Abstract:
Embodiments of the present application provide a data modulation method and an encoder for providing optical fiber with better resistance to nonlinear damage. A technical solution provided by the present application is as follows: an encoder determining a first constellation point from an at least two-dimensional first constellation diagram in multi-dimensional constellation diagrams, and determining a second constellation point from another at least two-dimensional second constellation diagram in the multi-dimensional constellation diagrams, wherein the first constellation point and the second constellation point cannot be constellation points having a maximum amplitude in respective constellation diagrams at the same time; the encoder matching the first constellation point and the second constellation point to generate a constellation combination point; the encoder receiving a bit sequence carrying digital information; the encoder mapping the bit sequence into a symbol for transmission by means of a mapping table of the constellation combination point, wherein the mapping table is pre-stored by the encoder; and the encoder sending the symbol to a digital-analog converter.