Reliable transport of TDM data streams over packet networks
US7567570B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 19, 2002 |
| Grant date | Jul 28, 2009 |
| Priority date | — |
| Expiry date | Jan 18, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/6489
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Systems and methods are presented for transporting a TDM data stream over a packet network, involving buffering an input TDM data stream to fill a data frame on a sending side, assigning a sequence number to the data frame, sending the data frame in a packet across the network to a receiving side, setting a timer corresponding to the data frame, storing a copy the data frame in a sending side buffer, receiving the packet and removing the data frame at the receiving side, sending an acknowledgement frame to the sending side, buffering received data frames in a sequence order in a receive buffer, and sending a data frame with a lowest sequence number to an output TDM data stream, wherein if an acknowledgement frame is not received before an expiration of the timer, a copy of a corresponding data frame is resent to the receiving side.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.