Optical network unit, optical access network and a method for exchanging information
US9008512B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 22, 2011 |
| Grant date | Apr 14, 2015 |
| Priority date | — |
| Expiry date | Dec 31, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J2014/0253
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An Optical Access Network, a Optical Network Unit (ONU) and various methods for exchanging information are provided. The method may include: receiving, by the ONU, a pilot signal and down-stream information signals; wherein the pilot signal is received at a pilot frequency slot and the downstream information signals are received at a downstream information frequency slot; wherein the ONU is allocated with a spectral slice that comprises the pilot frequency slot, the downstream information frequency slot, a guard frequency slot and an upstream information frequency slot; wherein at least one other spectral slice is allocated for exchanging information with at least one other group of ONUs; splitting the downstream information signals to downstream information signals portions; splitting the pilot signals to pilot signals portions; detecting downstream information, in response to at least a first portion of downstream information signals; modulating a portion of the pilot signal by upstream information signals to provide upstream information signals that are within the upstream information frequency slot; modulating a second portion of the downstream information signals by the upstre…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.