Methods and systems for decoding headers that are repeatedly transmitted and received along with data on a radio channel
US6608828B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 15, 1999 |
| Grant date | Aug 19, 2003 |
| Priority date | — |
| Expiry date | Sep 15, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/0083
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A header that is repeatedly transmitted and received, along with data, on a radio channel is decoded by initially decoding at least one initially received header to identify values for the header fields. The header fields include invariant header fields having determinate values and changing header fields having changing values. At least one subsequently received header is decoded using the determinate values for at least one of the invariant header fields, thereby allowing increased reliability decoding of at least one of the changing header fields. The subsequent decoding can use predictive decoding using a probability value of unity for symbols associated with at least one of the invariant header fields. Headers also may be decoded by repeatedly transmitting a first header including invariant header fields and changing header fields, along with data, over a radio channel during a persistent flow communication session. Upon successful decoding of a first header, the second header is repeatedly transmitted that includes the changing header fields but excludes at least one of the invariant header fields. The second header, including the changing header fields but excluding at least…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.