公开(公告)号：US11018775B2

公开(公告)日：2021-05-25

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 ,  H04B1/707 ,  H04B10/61 ,  H04J14/00 ,  H04B10/516 ,  H04B10/50

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：US11012267B2

公开(公告)日：2021-05-18

申请号：US16393885

申请日：2019-04-24

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yuanda Huang ,  Xie Wang ,  Liangchuan Li

IPC: H04L27/01 ,  H04L25/03 ,  H04B7/06 ,  H04B7/08 ,  H04B7/0413 ,  H04B1/7103 ,  H04W56/00 ,  H04B10/25 ,  H04J11/00

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：US10805032B2

公开(公告)日：2020-10-13

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 ,  H04B10/00

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：US10993004B2

公开(公告)日：2021-04-27

申请号：US16986888

申请日：2020-08-06

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yanzhao Lu ,  Xie Wang ,  Liangchuan Li ,  Shupeng Deng

IPC: H04B10/04 ,  H04Q11/00 ,  G02F1/21 ,  H04B10/80 ,  H04L7/00

Abstract: A first optical splitter splits a light source to obtain a first optical signal, a second optical signal, and a third optical signal. A first MZ modulator modulates the first optical signal to output a fourth optical signal. A second MZ modulator modulates the second optical signal to output a fifth optical signal. A first optical coupler couples the fourth optical signal and the fifth optical signal to output a sixth optical signal and a seventh optical signal. A power regulator and a phase shifter respectively perform power adjustment and phase shifting on the third optical signal to output an eighth optical signal. A second optical splitter splits the eighth optical signal into a ninth optical signal and a tenth optical signal. A second optical coupler combines the sixth optical signal and the ninth optical signal. A third optical coupler combines the seventh optical signal and the tenth optical signal.