Data unit management in communications
US7525908B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 24, 2004 |
| Grant date | Apr 28, 2009 |
| Priority date | — |
| Expiry date | Aug 17, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/1664
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In Radio Link control (REC) apparatus, a mechanism is provided for detecting missing or corrupted data units at the receiving end of a transmission link, requesting retransmission and then monitoring the response to the retransmission request. Distinctively, a receiving communications entity 300 is equipped to act on a nil response. If no data unit is retransmitted, the receiving entity triggers at least one repeat retransmission request. This is the case even if no further data unit is received after the retransmission request is triggered. Retransmission requests are repeated up to a preset number, whereafter a different recovery mechanism is triggered.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.