Devices and methods for flow control of messages in a passive optical network (PON) and methods therein
US9602196B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 20, 2012 |
| Grant date | Mar 21, 2017 |
| Priority date | — |
| Expiry date | Jun 20, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2011/0088
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method in an Optical Line Terminal (OLT) device for transmitting a flow control message to an Optical Network Unit/Terminal (ONU/T) device in a Passive Optical Network (PON) access network is provided. The OLT device is configured to receive alarm and/or Attribute Value Change (AVC) messages from the ONU/T device. The OLT device is also configured to temporarily store the alarm and/or AVC messages in a message queue. The OLT device generates a flow control message indicating that the ONU/T device is to stop transmitting alarm and/or AVC messages to the OLT device, when the number of alarm and/or AVC messages in the message queue exceeds a first threshold. Then, the OLT device transmits the flow control message to the ONU/T device(s). An OLT device for transmitting a flow control message to an ONU/T device, and an ONU/T device and related method for receiving a flow control message are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.