Fault-tolerant data transmission system for networks with non-full-duplex or asymmetric transport
US9118478B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 28, 2013 |
| Grant date | Aug 25, 2015 |
| Priority date | — |
| Expiry date | May 8, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2001/0097
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In a data transfer method and system for networks having gateway-mediated asymmetric transport, data and feedback channels are established between sender and receiver, along with a gateway feedback channel between gateway and sender. Cohorts of datagrams are transformed using fault-tolerant coding to create chapters whose size correspond to the asymmetric transport's timing. The sender transmits chapters in chunks at a rate to keep the gateway at an optimum fill for maximal throughput without transmit-end packet drops. The receiver reconstructs complete cohorts of original datagrams from a received subset of the transformed datagrams. The receiver acknowledges successfully recovered cohorts and identifies missing or corrupt datagrams of a chapter whenever recovery is unsuccessful. The sender resends sufficient lost datagrams to allow cohort recovery. The sender self-tunes its transmission rate based upon gateway fill, network latency and datagram loss rate to keep datagram loss rate below an upper bound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.