Apparatus and method for generating interleaver index
US9344118B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 24, 2012 |
| Grant date | May 17, 2016 |
| Priority date | — |
| Expiry date | May 8, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M13/395
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An apparatus for generating indexes of an interleaver for input data comprises: a main processor for calculating an index for a predetermined bit of the input data; and an index operator for receiving the index calculated by the main processor, calculating in parallel indexes for bits after the predetermined bit, and deriving a plurality of indexes. The main processor calculates the index for ith to (i+15)th bits of the input data where i is an integer equal to or larger than 0, and transfers a result of (128*f2)modK to the index operator. The index operator calculates an index for an (i+j+16)th bit where j is an integer which satisfies 0≦j≦7 by using an equation of Π(i+j+16)=(2*Π(i+j+8)−Π(i+j)+128*f2)modK where K is a size of the input data and f2 is a coefficient calculated from K.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.