# US 2025/0096889 A1 · Communication route setting method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2025/0096889 A1 - Document ID: US20250096889A1 - Status: Published application - Kind: A1 - Application number: 18/727,379 - Filed: 2022-01-26 - Published: 2025-03-20 - Earliest claimed: 2022-01-26 - Assignees: NEC Corporation - Applicants: NEC Corporation - Inventors: Jun KODAMA; Yoshiaki SAKAE; Hiroki TAGATO; Takashi KONASHI; Jun NISHIOKA; Yuji KOBAYASHI; Etsuko ICHIHARA - Web page: https://patentgrep.com/patent/US20250096889A1 ## CPC - H04B 10/0775: {Performance monitoring and measurement of transmission parameters} - H04B 10/075: using an in-service signal (H04B10/071 takes precedence) - H04B 10/0793: {Network aspects, e.g. central monitoring of transmission parameters} - H04L 41/0823: characterised by the purposes of a change of settings, e.g. optimising configuration for enhancing reliability (for optimising operational conditions of wireless networks H04W24/02) - H04L 45/02: Topology update or discovery - H04B: TRANSMISSION - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract A communication route setting device 100 of the present invention includes an optical signal acquisition unit 121 that acquires an optical signal on a transmission path in a network in which optical communication devices are connected to each other via an optical transmission path, a condition determination unit 122 that determines a physical condition of at least one object of the optical transmission path and the optical communication devices on the basis of the optical signal, and a route setting unit 123 that sets a communication route for transmitting the optical signal on the network on the basis of the determined physical condition. ## Claims ### Claim 1 A communication route setting method comprising: acquiring an optical signal on a transmission path in a network in which optical communication devices are connected to each other via an optical transmission path; determining a physical condition of at least one object of the optical transmission path and the optical communication devices, on a basis of the optical signal; and setting a communication route for transmitting the optical signal on the network, on a basis of the determined physical condition. ### Claim 2 (depends on 1) The communication route setting method according to claim 1, further comprising determining a deterioration state of the object as the physical condition. ### Claim 3 (depends on 1) The communication route setting method according to claim 1, further comprising determining an external environmental condition of the object as the physical condition. ### Claim 4 (depends on 1) The communication route setting method according to claim 1, further comprising: acquiring optical signal information representing a characteristic of the optical signal; and determining the physical condition of the object on a basis of the optical signal information. ### Claim 5 (depends on 4) The communication route setting method according to claim 4, further comprising acquiring a constellation of the optical signals as the optical signal information. ### Claim 6 (depends on 4) The communication route setting method according to claim 4, further comprising acquiring a state of polarization (SOP) of the optical signal as the optical signal information. ### Claim 7 (depends on 1) The communication route setting method according to claim 1, further comprising: generating a model representing a relationship between the optical signal acquired in advance and a physical condition of the object when the optical signal is acquired; and determining the physical condition of the object on a basis of the model and a newly acquired optical signal. ### Claim 8 (depends on 1) The communication route setting method according to claim 1, further comprising: acquiring a predetermined measurement value measured by a measurement device provided to the object; and determining the physical condition of the object on a basis of the optical signal and the measurement value. ### Claim 9 (depends on 1) The communication route setting method according to claim 1, further comprising: setting communication quality of the object on a basis of the determined physical condition of the object; and setting the communication route on a basis of the set communication quality. ### Claim 10 (depends on 9) The communication route setting method according to claim 9, further comprising setting the communication route that satisfies requested communication quality on a basis of the set communication quality. ### Claim 11 A communication route setting device comprising: at least one memory configured to store instructions; and at least one processor configured to execute instructions to: acquire an optical signal on a transmission path in a network in which optical communication devices are connected to each other via an optical transmission path; determine a physical condition of at least one object of the optical transmission path and the optical communication devices, on a basis of the optical signal; and set a communication route for transmitting the optical signal on the network, on a basis of the determined physical condition. ### Claim 12 (depends on 11) The communication route setting device according to claim 11, wherein the at least one processor is configured to execute the instructions to determine a deterioration state of the object as the physical condition. ### Claim 13 (depends on 11) The communication route setting device according to claim 11, wherein the at least one processor is configured to execute the instructions to determine an external environmental condition of the object as the physical condition. ### Claim 14 (depends on 11) The communication route setting device according to claim 11, wherein the at least one processor is configured to execute the instructions to: acquire optical signal information representing a characteristic of the optical signal; and determine the physical condition of the object on a basis of the optical signal information. ### Claim 15 (depends on 14) The communication route setting device according to claim 14, wherein the at least one processor is configured to execute the instructions to acquire a constellation of the optical signals as the optical signal information. ### Claim 16 (depends on 14) The communication route setting device according to claim 14, wherein the at least one processor is configured to execute the instructions to acquire a state of polarization (SOP) of the optical signal as the optical signal information. ### Claim 17 (depends on 11) The communication route setting device according to claim 11, wherein the at least one processor is configured to execute the instructions to: generate a model representing a relationship between the optical signal acquired in advance and a physical condition of the object when the optical signal is acquired; and determine the physical condition of the object on a basis of the model and a newly acquired optical signal. ### Claim 18 (depends on 11) The communication route setting device according to claim 11, wherein the at least one processor is configured to execute the instructions to: acquire a predetermined measurement value measured by a measurement device provided to the object; and determine the physical condition of the object on a basis of the optical signal and the measurement value. ### Claim 19 (depends on 11) The communication route setting device according to claim 11, wherein the at least one processor is configured to execute the instructions to: set communication quality of the object on a basis of the determined physical condition of the object; and set the communication route on a basis of the set communication quality. ### Claim 20 (canceled) ### Claim 21 A non-transitory computer-readable medium storing thereon a program comprising instructions for causing a computer to execute processing to: acquire an optical signal on a transmission path in a network in which optical communication devices are connected to each other via an optical transmission path; determine a physical condition of at least one object of the optical transmission path and the optical communication devices, on a basis of the optical signal; and set a communication route for transmitting the optical signal on the network, on a basis of the determined physical condition.