# US 2024/0204875 A1 · Repeater and monitoring method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2024/0204875 A1 - Document ID: US20240204875A1 - Status: Published application - Kind: A1 - Application number: 18/287,300 - Filed: 2021-04-28 - Published: 2024-06-20 - Earliest claimed: 2021-04-28 - Assignees: Mitsubishi Electric Corporation - Applicants: Mitsubishi Electric Corporation - Inventors: Mamiko TANAKA; Yoshiaki KONISHI; Kenji ISHII - Web page: https://patentgrep.com/patent/US20240204875A1 ## CPC - H04B 10/0777: {Monitoring line amplifier or line repeater equipment} - H04B 10/29: Repeaters - H04B 10/075: using an in-service signal (H04B10/071 takes precedence) - H04B 10/0793: {Network aspects, e.g. central monitoring of transmission parameters} - H04B 10/40: Transceivers - H04B: TRANSMISSION ## Abstract A regenerative relay transponder includes: an optical receiving unit that receives an optical signal from a transmitting device as a reception optical signal and converts the reception optical signal into an electrical signal; an electrical-signal processing unit that executes predetermined processing on the electrical signal; an optical transmitting unit that generates a transmission optical signal by converting the electrical signal subjected to the predetermined processing into an optical signal and transmits the transmission optical signal; and a monitoring unit that monitors the predetermined processing by the electrical-signal processing unit, wherein the monitoring unit accumulates in a storage unit monitoring data, which indicates the result of the monitoring, over a predetermined period and causes a communication unit to transmit the monitoring data accumulated over the predetermined period as transmission data to the transmitting device. ## Claims ### Claim 1 A repeater comprising: a first optical communication interface to receive an optical signal from a transmitting device as a reception optical signal and convert the reception optical signal into an electrical signal; processing circuitry to execute predetermined processing on the electrical signal and to monitor the predetermined processing; a second optical communication interface to generate a transmission optical signal by converting the electrical signal subjected to the predetermined processing into an optical signal and transmitting the transmission optical signal; and a memory to store data; a communication interface to transmit and receive data, wherein the processing circuitry accumulates in the storage unit monitoring data over a predetermined period and causes the communication interface to transmit the monitoring data accumulated over the predetermined period as transmission data to the transmitting device, the monitoring data being data indicating a result of the monitoring. ### Claim 2 (depends on 1) The repeater according to claim 1, wherein, when the communication interface receives data, the processing circuitry causes the second optical communication interface to transmit the received data. ### Claim 3 (depends on 2) The repeater according to claim 2, wherein the processing circuitry stores the received data in a general communication channel 0 (GCC0) region of optical transport unit (OTU) frame overhead and causes the second optical communication interface to transmit the stored data. ### Claim 4 (depends on 2) The repeater according to claim 2, wherein the processing circuitry multiframes the received data, stores the multiframed data in a general communication channel 0 (GCC0) region of optical transport unit (OTU) frame overhead, and causes the second optical communication interface to transmit the stored data. ### Claim 5 (depends on 3) The repeater according to claim 3, wherein the processing circuitry uses a leading bit of the GCC0 region as a leading flag bit indicating whether or not there is an update in the received data. ### Claim 6 (depends on 4) The repeater according to claim 4, wherein the processing circuitry uses a leading bit of the GCC0 region as a leading flag bit indicating whether or not there is an update in the received data and uses a bit next to the leading flag bit as a multiframe bit indicating the order of the multiframed data. ### Claim 7 (depends on 2) The repeater according to claim 2, wherein the processing circuitry stores the received data in a reserved for future international standardization (RES) region of optical transport unit (OTU) frame overhead and causes the second optical communication interface to transmit the stored data. ### Claim 8 (depends on 2) The repeater according to claim 2, wherein the processing circuitry multiframes the received data, stores the multiframed data in a reserved for future international standardization (RES) region of optical transport unit (OTU) frame overhead, and causes the second optical communication interface to transmit the stored data. ### Claim 9 (depends on 7) The repeater according to claim 7, wherein the processing circuitry uses a leading bit of the RES region as a leading flag bit indicating whether or not there is an update in the received data. ### Claim 10 (depends on 8) The repeater according to claim 8, wherein the processing circuitry uses a leading bit of the RES region as a leading flag bit indicating whether or not there is an update in the received data and uses a bit next to the leading flag bit of the RES region as a multiframe bit indicating the order of the multiframed data. ### Claim 11 (depends on 1) The repeater according to claim 1, wherein, the processing circuitry uses the electrical signal to detect presence or absence of an abnormality in communication with the transmitting device, and causes the memory to store data related to the abnormality as the monitoring data when the abnormality is determined. ### Claim 12 (depends on 1) The repeater according to claim 1, wherein, the processing circuitry performs error correction on the electrical signal and causes the memory to store data related to the error correction as the monitoring data. ### Claim 13 (depends on 1) The repeater according to claim 1, wherein the communication interface is connected to another repeater transmitting an optical signal to the transmitting device and transmits the transmission data to the transmitting device via the another repeater. ### Claim 14 A monitoring method comprising: receiving an optical signal from a transmitting device as a reception optical signal; converting the reception optical signal into an electrical signal; executing predetermined processing on the electrical signal; generating a transmission optical signal by converting the electrical signal subjected to the predetermined processing into an optical signal; transmitting the transmission optical signal; monitoring the predetermined processing; accumulating monitoring data over a predetermined period, the monitoring data being data indicating a result of the monitoring; and transmitting the monitoring data accumulated over the predetermined period to the transmitting device as transmission data. ### Claim 15 (depends on 4) The repeater according to claim 4, wherein the processing circuitry uses a leading bit of the GCC0 region as a leading flag bit indicating whether or not there is an update in the received data. ### Claim 16 (depends on 8) The repeater according to claim 8, wherein the processing circuitry uses a leading bit of the RES region as a leading flag bit indicating whether or not there is an update in the received data.