Title:
LOCAL END NODE, LEAF NODE AND OPTICAL COMMUNICATION NETWORK
Document Type and Number:
WIPO Patent Application WO/2023/040619
Kind Code:
A1
Abstract:
The present application belongs to the technical field of optical communications. Provided are a local end node, a leaf node and an optical communication network. The local end node comprises a wave-combining module, a wave-splitting module, a light source module and a transceiving module, wherein both the wave-combining module and the wave-splitting module are used to connect to an outer-ring optical fiber and an inner-ring optical fiber. The light source module provides, to the transceiving module, local oscillation light and signal light which have the same wavelength, wherein the local oscillation light comprises at least one of light at a first wavelength and light at a second wavelength. The transceiving module receives, by using the local oscillation light, an uplink signal which is sent by the wave-combining module, wherein the uplink signal comprises at least one of an uplink signal at the first wavelength and an uplink signal at the second wavelength. The transceiving module can also generate a downlink signal on the basis of the signal light, and can then transmit the downlink signal to the wave-splitting module, wherein the downlink signal comprises at least one of a downlink signal at the first wavelength and a downlink signal at the second wavelength. In this way, data transmission can be realized by using the light at the first wavelength and the light at the second wavelength, such that a data transmission process is simplified.
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Inventors:
GUI TAO (CN)
CHEN XI (CN)
LI LIANGCHUAN (CN)
CHEN XI (CN)
LI LIANGCHUAN (CN)
Application Number:
PCT/CN2022/114824
Publication Date:
March 23, 2023
Filing Date:
August 25, 2022
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04Q1/10
Domestic Patent References:
| WO2020238503A1 | 2020-12-03 |
Foreign References:
| CN112187344A | 2021-01-05 | |||
| CN102665152A | 2012-09-12 | |||
| CN105790839A | 2016-07-20 |
Attorney, Agent or Firm:
BEIJING SAN GAO YONG XIN INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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