Title:
STATION-SIDE OPTICAL NETWORK UNIT, COMMUNICATION SYSTEM, AND CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2023/209981
Kind Code:
A1
Abstract:
An aspect of the present invention is a station-side optical network unit connected to a subscriber-side optical network unit. The station-side optical network unit comprises: an acquisition unit that acquires, from the subscriber-side optical network unit, the signal-to-noise ratio of a signal transmitted from the station-side optical network unit and received by the subscriber-side optical network unit; a derivation unit that derives, from the signal-to-noise ratio acquired by the acquisition unit, a physical quantity indicating the quality of the received signal; and a setting unit that sets the power of the signal transmitted from the station-side optical network unit at the minimum of power indicating predetermined quality by the physical quantity derived by the derivation unit.
Inventors:
KIM SANG-YUEP (JP)
KANI JUNICHI (JP)
KANI JUNICHI (JP)
Application Number:
PCT/JP2022/019379
Publication Date:
November 02, 2023
Filing Date:
April 28, 2022
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
H04B10/272; H04L27/26; H04B10/564; H04L1/00
Domestic Patent References:
| WO2018122987A1 | 2018-07-05 |
Foreign References:
| US20130170830A1 | 2013-07-04 | |||
| JP2019161512A | 2019-09-19 | |||
| JP2020053858A | 2020-04-02 | |||
| JP2011239294A | 2011-11-24 |
Other References:
SANG-YUEP KIM ; JUN TERADA ; NAOTO YOSHIMOTO: "SNR optimization through digital frequency-domain pre-emphasis for extending transmission distances in DML-based OFDM-PON systems", OPTICAL FIBER COMMUNICATION CONFERENCE AND EXPOSITION AND THE NATIONAL FIBER OPTIC ENGINEERS CONFERENCE (OFC/NFOEC), 2013, IEEE, 17 March 2013 (2013-03-17), pages 1 - 3, XP032426740, ISBN: 978-1-4799-0457-0, DOI: 10.1364/NFOEC.2013.JTh2A.69
YOSHIKI, TOMOAKI ET AL.: "Performance of a Multilevel Transmit Power Control Scheme for the OFDM Subcarrier Adaptive Modulation System", IEICE TECHNICAL REPORT, vol. 100, no. 192, 2000, pages 63 - 68, XP002995693
YOSHIKI, TOMOAKI ET AL.: "Performance of a Multilevel Transmit Power Control Scheme for the OFDM Subcarrier Adaptive Modulation System", IEICE TECHNICAL REPORT, vol. 100, no. 192, 2000, pages 63 - 68, XP002995693
Attorney, Agent or Firm:
SHIGA INTERNATIONAL PATENT OFFICE (JP)
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