United States Patent 8,788,920
Pietraski , et al. July 22, 2014
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Detection, avoidance and/or correction of problematic puncturing patterns in parity bit streams used when implementing turbo codes
Abstract
Detecting, avoiding and/or correcting problematic puncturing patterns in parity bit streams used when implementing punctured Turbo codes is achieved without having to avoid desirable code rates. This enables identification/avoidance of regions of relatively poor Turbo code performance. Forward error correction comprising Turbo coding and puncturing achieves a smooth functional relationship between any measure of performance and the effective coding rate resulting from combining the lower rate code generated by the Turbo encoder with puncturing of the parity bits. In one embodiment, methods to correct/avoid degradations due to Turbo coding are implemented by puncturing interactions when two or more stages of rate matching are employed.
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Inventors: Pietraski; Philip J. (Jericho, NY), Sternberg; Gregory S. (Mt. Laurel, NJ)
Applicant: Name City State Country Type
Interdigital Technology Corporation
Wilimington
DE
US
Assignee: InterDigital Technology Corporation (Wilmington, DE)
Appl. No.: 13/744,984
Filed: January 18, 2013
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Prior Publication Data
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Document Identifier Publication Date
US 20130139040 A1 May 30, 2013
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Related U.S. Patent Documents
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Application Number Filing Date Patent Number Issue Date
13309962 Jan 22, 2013 8359520
11974381 Dec 6, 2011 8074143
10725779 Nov 6, 2007 7293217
60494404 Aug 11, 2003
60470921 May 15, 2003
60444068 Jan 30, 2003
60434232 Dec 16, 2002
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Current U.S. Class: 714/790 ; 714/774; 714/786
Current International Class: H03M 13/03 (20060101)
Field of Search: ;714/790,774,786,752,755,800
PPP
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