公开(公告)号：US20190296848A1

公开(公告)日：2019-09-26

申请号：US16435548

申请日：2019-06-09

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xie WANG ,  Yuanda HUANG ,  Liangchuan LI

IPC: H04J14/00 ,  H04B10/2507

Abstract: Embodiments of this application provide a data transmission method, a terminal device, and a network side device. Encoding, by a terminal device, a first identifier by using a first code word which is selected from at least one code word by the terminal device; sending, by the terminal device, the encoded first identifier to a network side device; receiving, by the terminal device, a second identifier sent by the network side device; decoding, by the terminal device, the second identifier by using the first code word; when the decoded second identifier is the same as the first identifier, encoding, by the terminal device, subsequent data by using the first code word; and sending, by the terminal device, the encoded subsequent data to the network side device.

公开(公告)号：US20200186255A1

公开(公告)日：2020-06-11

申请号：US16791381

申请日：2020-02-14

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yi YU ,  Yuanda HUANG ,  Liangchuan LI ,  Xie WANG

IPC: H04B10/556 ,  H04B10/61 ,  H04J14/00 ,  H04B1/707

Abstract: An optical transmitter, an optical receiver, and an optical transmission method are disclosed. The optical transmitter includes an optical signal generator, N spreaders, N pairs of data modulators, and a combiner, where the optical signal generator generates N optical carriers; an ith spreader spreads an ith optical carrier, to obtain a spread optical signal having two subcarriers; splits the spread optical signal into a first optical signal and a second optical signal; and delays the second optical signal to obtain a third optical signal; an ith pair of data modulators modulate the first optical signal and the third optical signal to obtain a pair of modulated optical signals, transmit the pair of modulated optical signals to the combiner, where the pair of modulated optical signals reaching the combiner differ by 1/(4 fsi) in time domain; and the combiner combines, into one optical signal, N pairs of modulated optical signals.

公开(公告)号：US20190253285A1

公开(公告)日：2019-08-15

申请号：US16393885

申请日：2019-04-24

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yuanda HUANG ,  Xie WANG ,  Liangchuan LI

IPC: H04L25/03 ,  H04L27/01 ,  H04B7/0413 ,  H04B7/06 ,  H04B7/08

CPC classification number: H04L25/03949 ,  H04B7/0413 ,  H04B7/0695 ,  H04B7/088 ,  H04J13/00 ,  H04L25/03273 ,  H04L27/01 ,  H04W56/00

Abstract: A receiver in the present disclosure includes: a first input end, N first output ends, N baseband signal recovery modules, and a multiple-input multiple-output equalization module. Each baseband signal recovery module includes two second output ends; one second output end of each baseband signal recovery module is configured to output a baseband signal; and the other second output end is configured to output data enabling control information. The multiple-input multiple-output equalization module is configured to: control, based on N pieces of data enabling control information, a time sequence of N baseband signals entering the multiple-input multiple-output equalization module for equalization filtering processing, and perform equalization filtering processing on the N baseband signals by using N transmitters as references to obtain recovered data of the N transmitters. According to the embodiments of the present disclosure, asynchronous multi-transmitter data is received.

公开(公告)号：US20190253177A1

公开(公告)日：2019-08-15

申请号：US16398169

申请日：2019-04-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xie WANG ,  Yuanda HUANG ,  Liangchuan LI

IPC: H04J14/06 ,  H04B10/2569 ,  H04B7/10 ,  H04J14/02

CPC classification number: H04J14/06 ,  H04B7/10 ,  H04B10/2507 ,  H04B10/2569 ,  H04J14/0238 ,  H04J14/0282

Abstract: Embodiments of the present invention provide a receiver and a data receiving method. The receiver includes: two first input ends, configured to receive a digital signal of an X-polarization state and a digital signal of a Y-polarization state; a despreading module, configured to despread the digital signal of the X-polarization state and the digital signal of the Y-polarization state based on N delay values and spreading codes of N transmitters, to obtain N first baseband signals and N second baseband signals; and a multiple-input multiple-output equalization module, configured to perform equalization filtering processing on the N first baseband signals and the N second baseband signals, to obtain recovered data of the first polarization states and recovered data of the second polarization states of the N transmitters. In the embodiments of the present invention, the coherent CDMA multipoint-to-point data transmission in an optical communications system is implemented.