Flexible polynomial-based interleaver
US-10122495-B2 · Nov 6, 2018 · US
QPP interleaver/de-interleaver for turbo codes
US8959403B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8959403-B2 |
| Application number | US-201213561781-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 30, 2012 |
| Priority date | Nov 10, 2006 |
| Publication date | Feb 17, 2015 |
| Grant date | Feb 17, 2015 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A quadratic permutation polynomial (QPP) interleaver is described for turbo coding and decoding. The QPP interleaver has the form: Π( n )= f 1 n−f n n 2 mod K, where the QPP coefficients f 1 and f 2 are designed to provide good error performance for a given block length K.
First claim
Opening claim text (preview).
What is claimed is: 1. An apparatus comprising: a quadratic permutation polynomial (QPP) interleaver configured to map values in an input sequence to corresponding values in an output sequence, wherein the nth value in said output sequence is determined according to the QPP function Π(n)=f 1 n+f 2 n 2 mod K, where Π(n) is the input index of a corresponding value in the input sequence, f 1 and f 2 are QPP coefficients, and K is the block length of the input sequence, and whe…
Assignees
Inventors
Classifications
Electricity · mapped topic
- H03M13/2739Primary
Electricity · mapped topic
Electricity · mapped topic
Patent family
Related publications grouped by family.
External sources
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US8959403B2 cover?
- A quadratic permutation polynomial (QPP) interleaver is described for turbo coding and decoding. The QPP interleaver has the form: Π( n )= f 1 n−f n n 2 mod K, where the QPP coefficients f 1 and f 2 are designed to provide good error performance for a given block length K.
- Who is the assignee on this patent?
- Cheng Jung-Fu, Optis Wireless Technology Llc
- What technology area does this patent fall under?
- Primary CPC classification H03M13/2739. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Feb 17 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).