公开(公告)号：US20180287708A1

公开(公告)日：2018-10-04

申请号：US15982930

申请日：2018-05-17

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yuanda HUANG ,  Liangchuan LI

IPC: H04B10/516 ,  H04B1/7087 ,  H04L27/36 ,  H04B10/2507

CPC classification number: H04B10/5161 ,  H04B1/7087 ,  H04B7/216 ,  H04B10/2507 ,  H04B10/2569 ,  H04B10/50 ,  H04B10/5053 ,  H04B10/54 ,  H04B10/697 ,  H04B2201/709709 ,  H04J14/005 ,  H04L27/34 ,  H04L27/366

Abstract: According to a signal transmitting method, a signal receiving method, and a related device and system, a generated single-wavelength optical carrier may be split into N subcarriers with a same wavelength by using a splitting device, corresponding data modulation and corresponding amplitude spread spectrum modulation are performed on the N subcarriers by using N spreading codes and N low-speed data signals obtained by deserializing a received high-speed data signal, to obtain N spread spectrum modulation signals, and the N spread spectrum modulation signals are combined and output. A multicarrier generation apparatus or the like having a relatively complex structure does not need to be used for optical carrier splitting, and spectrum spreading does not need to be performed in a phase modulation manner in which a plurality of delay units or controllable phase units are required.

公开(公告)号：US20170041179A1

公开(公告)日：2017-02-09

申请号：US15295684

申请日：2016-10-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yuanda HUANG

IPC: H04L27/36 ,  H04L7/00 ,  H04L27/38

CPC classification number: H04L27/361 ,  H04L7/0037 ,  H04L27/3411 ,  H04L27/3455 ,  H04L27/38

Abstract: The present invention relates to the field of signal processing, and discloses code modulation and demodulation methods, apparatuses, and a system, so as to reduce an envelope fluctuation degree of a signal and improve system performance. A specific implementation method includes: receiving, by a sending apparatus, N channels of bit signals, and performing serial-to-parallel conversion on any channel of bit signal of the N channels of bit signals, to generate two channels of first bit signals; performing delay control on the two channels of first bit signals, to generate two channels of code bit signals; performing QAM mapping on the two channels of code bit signals and other N−1 channels of bit signals, to generate a channel of quadrature electrical signal and a channel of in-phase electrical signal; modulating the quadrature electrical signal and the in-phase electrical signal, to obtain a transmit signal.

Abstract translation: 本发明涉及信号处理领域，并且公开了码调制和解调方法，装置和系统，以减少信号的包络波动程度并提高系统性能。 一种具体的实现方法包括：由发送装置接收N个信道的位信号，并对N个信道的位信号的任何信道的信道进行串并转换，以产生两个信道的第一位信号; 对第一位信号的两个通道执行延迟控制，以产生两个通道的码位信号; 对两个信道的码位信号和其他N-1个信道的信号进行QAM映射，以产生正交电信号和同相电信号的信道; 调制正交电信号和同相电信号，以获得发射信号。