Optical signal measurement method and network device
US10812182B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 28, 2018 |
| Grant date | Oct 20, 2020 |
| Priority date | — |
| Expiry date | Mar 28, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q11/00
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An optical signal measurement method includes: measuring a power pi of a first optical signal on a target frequency band at a moment Ti, and measuring a power qi of a second optical signal on the target frequency band at a moment Ti+Δt, where the first optical signal is a signal detected in an optical signal transmission source, the second optical signal is a signal detected on a to-be-measured node, and Δt is a transmission duration of transmitting an optical signal from the optical signal transmission source to the to-be-measured node. The method further includes determining an optical signal-to-noise ratio on the to-be-measured node based on a power array P=[p1, pN] of the first optical signal on the target frequency band and a power array Q=[q1, qN] of the second optical signal on the target frequency band.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.