Maximizing data rate by adjusting codes and code rates
US8964909B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 11, 2012 |
| Grant date | Feb 24, 2015 |
| Priority date | — |
| Expiry date | Jun 11, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2001/0096
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present invention provides for making code rate adjustments and modulation type adjustments in a pseudonoise (PN) encoded CDMA system. Coding rate adjustments may be made by changing the number of information bits per symbol, or Forward Error Code (FEC) coding rate. A forward error correction (FEC) block size is maintained at a constant amount. Therefore, as the number of information bits per symbol are increased, an integer multiple of bits per epoch is always maintained. The scheme permits for a greater flexibility and selection of effective data rates providing information bit rates ranging from, for example, approximately 50 kilobits per second to over 5 mega bits per second (Mbps) in one preferred embodiment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.