Method apparatus and packet transmission system using error correction of data packets
US6126310A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 25, 1997 |
| Grant date | Oct 3, 2000 |
| Priority date | — |
| Expiry date | Jul 25, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/007
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The invention relates to a method, an apparatus and a packet transmission system for correcting errors in data packets (P) including information bits (IB) transmitted from a transmitter (TM) to a receiver (RC). The error correction method is characterized by the transmitter successively sending more parity bits on request of the receiver. Each set of additional parity bits is based on the original information bits, which are, however, reordered differently for each additional parity request. The receiver recursively performs a first error correction of said information bits (IB) reordered according to a first reordering pattern (REORD-A) using first parity bits (PA) for said original information bits (IB) reordered by using the same first reordering pattern, and a second error correction of said information bits (IB) reordered according to a second reordering pattern (REORD-B) using second parity bits (PB) for said original information bits (IB) reordered by using the same second reordering pattern. When no further improvement of errors is detected, a new parity bit request is transmitted to the transmitter and new additional parity bits (PC) are generated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.