Patent · US Expired

Source controlled channel decoding using an intra-frame

US6292922A · kind A · utility

8Cited by

1References

21Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Alfredo Ruscitto · Torino, IT
Thomas Hindelang · Fürstenfeldbruck, DE
Wen Xu · Unterhaching, DE

Key dates

Filing date	Dec 13, 1999
Grant date	Sep 18, 2001
Priority date	—
Expiry date	Dec 13, 2019

Classification

Technology area (CPC H)Electricity
CPC primaryH04L1/0054
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A method for a source-controlled channel-decoding of data in a frame format includes the steps of channel-decoding a given frame of data, determining an a-posteriori information based on a reliability decision of the channel-decoding and/or a source-decoding subsequent to the channel-decoding, calculating an a-priori information based on the a-posteriori information and based on a residual redundancy of the data, and channel-decoding the given frame once more using the a-priori information. The method thus uses the residual correlation between bits in a frame. The method preferably uses the intra-frame correlation in a GSM system. A channel-decoder configuration is also provided.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.