ONU function processing apparatus in ATM-PON system
US6614759B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 4, 2000 |
| Grant date | Sep 2, 2003 |
| Priority date | — |
| Expiry date | Feb 4, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/5654
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present invention relates to an ATM-PON system realizing an access network of FTTC/H(fiber-to-the-curb/home), more particularly, to an optical network unit function processing apparatus in ATM-PON system linked directly to a plurality of subscriber's lines. The present invention includes an optical distribution network(ODN) matching part carrying out a function of a physical layer required for connecting an optical network unit (ONU)to an optical distribution network; an ATM processing part exchanging an ATM(asynchronous transfer mode) cell with the optical distribution matching part, the ATM processing part carrying out functions of changing a header of an interactive ATM cell, routing, QoS(quality of service) buffering according to service connecting levels, processing real-time OAM(operation administration and maintenance), and UPC(user parameter control); an AAL1 processing part exchanging an ATM cell with the ATM processing part and executing AAL(ATM adaptation layer)1 processing functions such as segmentation of subscriber lines, reassembly, disposal and generation of a pointer, disposal and generation of an ATM cell, restoration of ARTS(synchronous residual time stamp) c…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.