Optical system, and dynamic wavelength bandwidth allocation method for optical system
US9749079B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 6, 2013 |
| Grant date | Aug 29, 2017 |
| Priority date | — |
| Expiry date | Mar 9, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2011/0086
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An ONU requests a bandwidth of an uplink signal, and in accordance with this, an OLT calculates a time when the OLT transmits the uplink signal and a transmission duration time and performs an instruction, and a DBA cycle in which the ONU transmits the uplink signal in accordance with the instruction and a dynamic wavelength allocation cycle in which the OLT instructs wavelength switching, and the ONU switches the wavelength and belongs to a different LC are separated. While the ONU switches the wavelength, the DBA cycles can be performed plural times in the ONU whose wavelength is not switched, the switching of the wavelength is confirmed after the wavelength has been switched, and then DBA operation is performed at the switched wavelength.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.