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1. 发明公开

EP4443769A1 OPTICAL NODE DEVICE, OPTICAL COMMUNICATION SYSTEM, AND TRANSFER METHOD 审中-实审
公开(公告)号：EP4443769A1
公开(公告)日：2024-10-09
申请号：EP21966403.4
申请日：2021-12-02
申请人： Nippon Telegraph And Telephone Corporation
发明人： KANAI Takuya , KANEKO Shin , SHIBATA Naotaka , KANI Junichi , YOSHIDA Tomoaki
IPC分类号： H04B10/291 , H04J14/02
CPC分类号： H04B10/291 , H04J14/0307
摘要： An optical node device to which a first subscriber device and a second subscriber device are connected in an optical communication system in which the first subscriber device and the second subscriber device are mixed, the first subscriber device being connected by one core using different wavelengths in transmission and reception, the second subscriber device being connected by two cores using the same wavelength in transmission and reception, the optical node device including: a transmission/reception separator that transfers an optical signal transmitted from the first subscriber device and an optical signal addressed to the first subscriber device without interference; and an optical switch that controls a connection relationship between ports such that an optical signal transmitted from the first subscriber device or an optical signal addressed to the first subscriber device passes through the transmission/reception separator and an optical signal transmitted from the second subscriber device or an optical signal addressed to the second subscriber device does not pass through the transmission/reception separator, and outputs an optical signal input from a certain optical transmission line from another optical transmission line.

2. 发明公开

EP3288221A1 STATION-SIDE DEVICE AND COMMUNICATION METHOD 有权
标题翻译：站侧设备和通信方法
公开(公告)号：EP3288221A1
公开(公告)日：2018-02-28
申请号：EP16800007.3
申请日：2016-05-24
申请人： Nippon Telegraph And Telephone Corporation
发明人： YOSHIDA Tomoaki , KUWANO Shigeru
IPC分类号： H04L12/44
摘要： A station-side device performs transmission and reception of an optical signal to and from a subscriber-side device, and includes a communication control unit configured to perform optical signal communication using a plurality of wavelengths by wavelength division multiplexing and time division multiplexing; and a registration unit configured to set an acceptance period in at least one wavelength among the plurality of wavelengths , to perform a new registration of a subscriber-side device in response to a registration request of the subscriber-side device received within the acceptance period, and not to set the acceptance period in at least one other wavelength among the plurality of wavelengths.
摘要翻译：站侧设备执行与用户侧设备之间的光信号的发送和接收，并且包括：通信控制单元，被配置为通过波分复用和时分复用使用多个波长来执行光信号通信; 以及注册单元，被配置为在所述多个波长中的至少一个波长中设置接受时段，以响应于在所述接受时段内接收的所述用户侧设备的注册请求，执行用户侧设备的新注册，并且不在多个波长中的至少一个其他波长中设置验收期。

3. 发明授权

EP3288221B1 METHOD AND APPARATUS FOR REDUCING NETWORK DELAY IN A PASSIVE OPTICAL NETWORK 有权
公开(公告)号：EP3288221B1
公开(公告)日：2020-05-06
申请号：EP16800007.3
申请日：2016-05-24
申请人： Nippon Telegraph And Telephone Corporation
发明人： YOSHIDA Tomoaki , KUWANO Shigeru
IPC分类号： H04L12/28

4. 发明授权

EP3267632B1 STATION-SIDE DEVICE AND WAVELENGTH CHANGEOVER MONITORING METHOD 有权
公开(公告)号：EP3267632B1
公开(公告)日：2019-11-27
申请号：EP16783180.9
申请日：2016-04-20
申请人： Nippon Telegraph and Telephone Corporation
发明人： YOSHIDA Tomoaki
IPC分类号： H04J14/02 , H04Q11/00 , H04L12/24 , H04L12/26 , H04L12/44

5. 发明公开

EP4084362A1 OPTICAL COMMUNICATION DEVICE, OPTICAL COMMUNICATION SYSTEM AND OPTICAL COMMUNICATION METHOD 审中-实审
公开(公告)号：EP4084362A1
公开(公告)日：2022-11-02
申请号：EP20906403.9
申请日：2020-09-29
申请人： Nippon Telegraph And Telephone Corporation
发明人： KANAI Takuya , SUZUKI Hiroo , KANI Junichi , KANEKO Shin , HONDA Kazuaki , YOSHINO Manabu , YOSHIDA Tomoaki
IPC分类号： H04B10/27 , H04B10/291
摘要： An optical communication apparatus includes an optical switch, a wavelength management control unit, and an optical switch control unit. The optical switch is connected to a plurality of transmission lines and outputs an optical signal input from one of the transmission lines to another of the transmission lines. The wavelength management control unit assigns a wavelength to a subscriber terminal according to a communication destination. The optical switch control unit controls the optical switch such that it outputs an optical signal transmitted from the subscriber terminal, to which a wavelength has been assigned, to a transmission line corresponding to its forwarding destination on a path to the communication destination.

6. 发明授权

EP3270545B1 STATION-SIDE DEVICE AND WAVELENGTH CHANGEOVER METHOD 有权
公开(公告)号：EP3270545B1
公开(公告)日：2019-08-21
申请号：EP16783183.3
申请日：2016-04-20
申请人： Nippon Telegraph and Telephone Corporation
发明人： YOSHIDA Tomoaki , ASAKA Kota , KIMURA Shunji
IPC分类号： H04J14/02

7. 发明公开

EP3270545A1 STATION-SIDE DEVICE AND WAVELENGTH CHANGEOVER METHOD 有权
标题翻译：站侧装置和波长改变方法
公开(公告)号：EP3270545A1
公开(公告)日：2018-01-17
申请号：EP16783183.3
申请日：2016-04-20
申请人： Nippon Telegraph and Telephone Corporation
发明人： YOSHIDA Tomoaki , ASAKA Kota , KIMURA Shunji
IPC分类号： H04L12/44
CPC分类号： H04J14/0247 , H04J14/02 , H04J14/0223 , H04L12/44 , H04L47/125 , H04L47/762 , H04Q11/0067 , H04Q2011/0083 , H04Q2011/0086
摘要： In a case where a wavelength to be assigned to a subscriber-side device, to which a downstream wavelength has been assigned, is to be changed from the currently used (Source) downstream wavelength to a different changeover target (Target) downstream wavelength, a downstream wavelength changeover instruction message that indicates the change target wavelength is generated. In a case where a wavelength to be assigned to the subscriber-side device, to which an upstream wavelength has been assigned, is to be changed from the currently used (Source) upstream wavelength to a different changeover target (Target) upstream wavelength, an upstream wavelength changeover instruction message that indicates the change target wavelength is generated. The downstream wavelength changeover instruction message and the upstream wavelength changeover instruction message are respectively independently generated, and only the wavelength for which the wavelength changeover instruction message was generated is changed.
摘要翻译：在要分配给已经分配了下行波长的用户侧设备的波长将从当前使用的（源）下行波长改变为不同的转换目标（目标）下行波长的情况下，产生指示改变目标波长的下游波长改变指示消息。在将分配给已经分配了上行波长的用户侧设备的波长从当前使用的（源）上行波长改变为不同的转换目标（目标）上行波长的情况下，产生指示改变目标波长的上游波长改变指示消息。下行波长切换指示消息和上行波长切换指示消息分别独立产生，只有产生波长切换指示消息的波长发生变化。

8. 发明公开

EP3267632A1 STATION-SIDE DEVICE AND WAVELENGTH CHANGEOVER MONITORING METHOD 有权
标题翻译：站侧设备和波长变换监测方法
公开(公告)号：EP3267632A1
公开(公告)日：2018-01-10
申请号：EP16783180.9
申请日：2016-04-20
申请人： Nippon Telegraph and Telephone Corporation
发明人： YOSHIDA Tomoaki
IPC分类号： H04L12/44
摘要： A station-side device of the present invention includes: a wavelength change instruction unit that issues, to a subscriber-side device, a wavelength change instruction to change a transfer-source wavelength assigned to the subscriber-side device to a transfer-target wavelength different from the transfer-source wavelength; a transfer-source port that transmits and receives an optical signal of the transfer-source wavelength; a transfer-target port that transmits and receives an optical signal of the transfer-target wavelength; a transfer-source port monitoring unit that detects a connection between the transfer-source port and the subscriber-side device; a transfer-target port monitoring unit that detects a connection between the transfer-target port and the subscriber-side device; a transfer-source timer that counts, at the transfer-source port, an elapsed time from a predetermined starting time in response to the wavelength change instruction, and ends the counting of the elapsed time in a case where change to the transfer-target wavelength is complete; and a transfer-target timer that counts, at the transfer-target port, an elapsed time from a predetermined time in response to the wavelength change instruction, and ends the counting of the elapsed time in a case where the change to the transfer-target wavelength is complete.
摘要翻译：本发明的站侧设备包括：波长改变指示单元，其向用户侧设备发出波长改变指令，以将分配给用户侧设备的传输源波长改变为传输目标波长不同于传输源波长; 发送和接收传送源波长的光信号的传送源端口; 发送和接收传送目标波长的光信号的传送目标端口; 传送源端口监视单元，其检测传送源端口和用户侧装置之间的连接; 传送目标端口监视单元，其检测传送目标端口和用户侧装置之间的连接; 传输源定时器，其在传输源端口处响应于波长改变指令而对从预定开始时间开始经过的时间进行计数，并且在改变为传输目标波长的情况下结束对经过时间的计数做完了; 以及传送目标定时器，其在传送目标端口处响应于波长改变指令对从预定时间开始经过的时间进行计数，并且在对传送目标进行改变的情况下结束对经过时间的计数波长是完整的。

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