JPWO2021176696A1 - - Google Patents
Info
- Publication number
- JPWO2021176696A1 JPWO2021176696A1 JP2022504923A JP2022504923A JPWO2021176696A1 JP WO2021176696 A1 JPWO2021176696 A1 JP WO2021176696A1 JP 2022504923 A JP2022504923 A JP 2022504923A JP 2022504923 A JP2022504923 A JP 2022504923A JP WO2021176696 A1 JPWO2021176696 A1 JP WO2021176696A1
- Authority
- JP
- Japan
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/27—Arrangements for networking
- H04B10/275—Ring-type networks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/27—Arrangements for networking
- H04B10/272—Star-type networks or tree-type networks
- H04B10/2725—Star-type networks without a headend
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/03—Arrangements for fault recovery
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computing Systems (AREA)
- Optical Communication System (AREA)
- Small-Scale Networks (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2020/009730 WO2021176696A1 (ja) | 2020-03-06 | 2020-03-06 | 通信システム及びoltシステム |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2021176696A1 true JPWO2021176696A1 (ja) | 2021-09-10 |
JP7481644B2 JP7481644B2 (ja) | 2024-05-13 |
Family
ID=77613938
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2022504923A Active JP7481644B2 (ja) | 2020-03-06 | 2020-03-06 | 通信システム |
Country Status (3)
Country | Link |
---|---|
US (1) | US12063072B2 (ja) |
JP (1) | JP7481644B2 (ja) |
WO (1) | WO2021176696A1 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7205004B2 (ja) * | 2020-09-18 | 2023-01-16 | 三菱電機株式会社 | 一芯双方向光リングシステム、一芯双方向光リングシステムの制御方法、及び、中央局 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001168802A (ja) * | 1999-10-14 | 2001-06-22 | Korea Advanced Inst Of Sci Technol | 副搬送波多重方式両方向自己治癒環形光通信網 |
US20050019031A1 (en) * | 2003-07-25 | 2005-01-27 | Nokia Corporation | Single-fiber protection in telecommunications networks |
JP2009130505A (ja) * | 2007-11-21 | 2009-06-11 | Fujitsu Ltd | 光伝送装置、光入力断検出閾値設定方法および光入力断検出閾値設定プログラム |
JP2013070123A (ja) * | 2011-09-20 | 2013-04-18 | Fujitsu Ltd | 光伝送システムおよび雑音抑制方法 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20020071149A1 (en) * | 2000-12-12 | 2002-06-13 | Xu Dexiang John | Apparatus and method for protection of an asynchronous transfer mode passive optical network interface |
US7590139B2 (en) * | 2005-12-19 | 2009-09-15 | Teknovus, Inc. | Method and apparatus for accommodating TDM traffic in an ethernet passive optical network |
US8538256B2 (en) * | 2008-03-17 | 2013-09-17 | Telefonaktiebolaget L M Ericsson (Publ) | Fast protection scheme for passive optical network |
US9319758B2 (en) * | 2008-10-21 | 2016-04-19 | Broadcom Corporation | Method and system for protection switching in ethernet passive optical networks |
CN101854566B (zh) * | 2009-04-02 | 2014-08-13 | 华为技术有限公司 | 无源光网络保护方法、主备切换控制设备和系统 |
CN101888268B (zh) * | 2009-05-14 | 2013-09-11 | 中兴通讯股份有限公司 | 一种在以太无源光网络实现主干光纤保护的方法和装置 |
CN101990132A (zh) * | 2009-07-30 | 2011-03-23 | 中兴通讯股份有限公司 | 光线路终端快速更新光网络单元测距结果的方法及系统 |
US8422887B2 (en) * | 2010-01-31 | 2013-04-16 | Pmc Sierra Ltd | System for redundancy in Ethernet passive optical networks (EPONs) |
KR101286011B1 (ko) * | 2010-03-24 | 2013-08-23 | 미쓰비시덴키 가부시키가이샤 | 통신 방법, 광통신 시스템, 이용자측 광회선 종단 장치, 국측 광회선 종단 장치 및 제어 장치 |
CN103178971B (zh) * | 2011-12-20 | 2015-12-16 | 华为技术有限公司 | Pon保护方法及装置 |
EP2621194A1 (en) * | 2012-01-30 | 2013-07-31 | Mitsubishi Electric R&D Centre Europe B.V. | Transparent protection switching operation in a pon |
US8953936B2 (en) * | 2012-10-01 | 2015-02-10 | Telefonaktiebolaget L M Ericsson (Publ) | Method for protection of multi-wavelength passive optical network |
US9008501B2 (en) * | 2013-02-13 | 2015-04-14 | Tellabs Bedford, Inc. | Network and method for providing redundancy in an optical distribution network |
US20160134953A1 (en) * | 2014-11-12 | 2016-05-12 | Broadcom Corporation | Shared protection in optical networks |
JP7415192B2 (ja) * | 2020-03-06 | 2024-01-17 | 日本電信電話株式会社 | 通信システム及びoltシステム |
-
2020
- 2020-03-06 US US17/802,126 patent/US12063072B2/en active Active
- 2020-03-06 JP JP2022504923A patent/JP7481644B2/ja active Active
- 2020-03-06 WO PCT/JP2020/009730 patent/WO2021176696A1/ja active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001168802A (ja) * | 1999-10-14 | 2001-06-22 | Korea Advanced Inst Of Sci Technol | 副搬送波多重方式両方向自己治癒環形光通信網 |
US20050019031A1 (en) * | 2003-07-25 | 2005-01-27 | Nokia Corporation | Single-fiber protection in telecommunications networks |
JP2009130505A (ja) * | 2007-11-21 | 2009-06-11 | Fujitsu Ltd | 光伝送装置、光入力断検出閾値設定方法および光入力断検出閾値設定プログラム |
JP2013070123A (ja) * | 2011-09-20 | 2013-04-18 | Fujitsu Ltd | 光伝送システムおよび雑音抑制方法 |
Also Published As
Publication number | Publication date |
---|---|
WO2021176696A1 (ja) | 2021-09-10 |
US12063072B2 (en) | 2024-08-13 |
US20230084976A1 (en) | 2023-03-16 |
JP7481644B2 (ja) | 2024-05-13 |
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