Title:
ONU, OLT, OPTICAL COMMUNICATION SYSTEM, AND DATA TRANSMISSION METHOD
Document Type and Number:
WIPO Patent Application WO/2021/218181
Kind Code:
A1
Abstract:
An optical network unit (ONU), an optical line terminal (OLT), an optical communication system, and a data transmission method, for use in solving the problem in the prior art of long delays of data sent by ONUs. The ONU can be applied to passive optical networks, etc. The ONU may comprise a coding module and an electro-optical conversion module; the coding module is configured to perform orthogonal coding on data to be sent to obtain an electrical signal, and transmit the electrical signal to the electro-optical conversion module; the electro-optical conversion module is configured to convert the electrical signal into an optical signal, and send the optical signal to the OLT over an optical distribution network (ODN). When multiple ONUs need to send data, the electrical signals of the multiple ONUs do not interfere with each other, and data of the multiple ONUs can reach the OLT at the same time, thereby facilitating reducing the delay of data sent by the ONUs. That is, by means of orthogonal coding by coding modules, a logical point-to-point link is established between each ONU and the OLT, equivalently.
Inventors:
ZHOU LEI (CN)
CHENG YUANBING (CN)
CHENG YUANBING (CN)
Application Number:
PCT/CN2020/136270
Publication Date:
November 04, 2021
Filing Date:
December 14, 2020
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04Q11/00
Foreign References:
| CN103109476A | 2013-05-15 | |||
| US20040208537A1 | 2004-10-21 | |||
| CN102377724A | 2012-03-14 | |||
| CN102075478A | 2011-05-25 | |||
| US20050041972A1 | 2005-02-24 | |||
| KR20040006173A | 2004-01-24 | |||
| CN105578316A | 2016-05-11 |
Attorney, Agent or Firm:
TDIP & PARTNERS (CN)
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