Method and apparatus for conveying data between communication devices
US6212240A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 24, 1998 |
| Grant date | Apr 3, 2001 |
| Priority date | — |
| Expiry date | Jun 24, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/16
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A first communication device (107) transmits user data (102), divided into a plurality of data blocks, at a first modulation rate. The first communication device (107) then receives an acknowledgment (104) from the second communication device (101) indicating a quantity of the data blocks that were not received and compares this quantity to a threshold. When the quantity is less than the threshold, the data blocks that were not received are retransmitted (106) at a second, usually lower, modulation rate. Otherwise, they are retransmitted at the first modulation rate. A comparison between the quantity of data blocks to be retransmitted and a threshold is being introduced to known communication techniques by the present invention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.