Subscriber network system
US6144665A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 27, 1997 |
| Grant date | Nov 7, 2000 |
| Priority date | — |
| Expiry date | Feb 27, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2011/0079
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
It is an object of this invention to provide a subscriber network system which can perform the system control operation. In the system where the optical network unit 10 and the subscriber line terminal 20 use the ATM transmission mode, a PDS-OAM cell, similar in format to an ATM cell, is defined for use in the system control operation. When control information is sent from the subscriber line terminal 20 to the optical network unit 10, the control cell generation module 22 generates a PDS-OAM cell containing control information and sends this cell to the optical network unit 10. The optical network unit 10 causes the control cell termination module 17 to terminate the PDS-OAM cell sent from the subscriber line terminal 20. The control cell generation module 14 generates a PDS-OAM cell containing a response to the control information from the subscriber line terminal 20 or warning information generated within the optical network unit 10 and sends this cell to the subscriber line terminal 20. The subscriber line terminal 20 causes the control cell termination module 24 to terminate the PDS-OAM cell sent from the optical network unit 10.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.