Optical power measurement method, optical line terminal and optical network unit
US8712240B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2011 |
| Grant date | Apr 29, 2014 |
| Priority date | — |
| Expiry date | Mar 14, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2011/0083
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The embodiments of the present invention relate to communications technology, and disclose an optical power measurement method, an Optical Line Terminal (OLT), and an Optical Network Unit (ONU). The method includes: generating a Physical Layer Operation Administration Maintenance (PLOAM) message that includes an identifier of at least one ONU to be measured and information about a time bucket that is allocated to the ONU to be measured and is used for sending upstream optical signals; sending the PLOAM message to the multiple ONUs; receiving the upstream optical signals that are sent, in the allocated time bucket, by the ONU to be measured; and detecting the received upstream optical signals, and determining the optical power of the upstream optical signals. The present invention avoid waste of bandwidth caused in the prior art when the DBA is required to allocate bandwidth to the ONU to be measured for the purpose of detecting the optical power.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.