Buffer compression in automatic retransmission request (ARQ) systems
US7685493B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 2006 |
| Grant date | Mar 23, 2010 |
| Priority date | — |
| Expiry date | Jan 21, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/1835
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and system for improving buffer compression in automatic retransmission request (ARQ) systems includes both a compander and decompander for further processing data. A received data string k bits in length is first companded according to a predetermined companding scheme. The companded data string is reduced to a length of k−1 bits for more efficient storage. Upon receipt of a request for retransmission, the stored companded data string is loaded and decompanded back to a length of k bits. Once decompanded, the data string is combined with a retransmitted data string to produce a single data string with an increased likelihood of being correct. By companding the data string before storage, a smaller memory block can be used for the storage of the data string.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.