Efficient implementations of proposed turbo code interleavers for third generation code division multiple access
US6625234B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 22, 1999 |
| Grant date | Sep 23, 2003 |
| Priority date | — |
| Expiry date | Jul 22, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J13/0022
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The invention relates to methods and apparatus for Turbo Code interleavers for use with third generation code division multiple access (3G CDMA) data. The apparatus includes a memory for receiving and temporarily storing the data, a counter and a clock coupled to the memory and counter for synchronization. The apparatus also includes a table containing a addresses that are selected by the counter. A puncturing device coupled to the table discards addresses if they are greater than a frame size. A buffer is coupled to the memory and the clock. The memory is configured to retrieve data from the selected addresses which are not discarded and forward it to the buffer for output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.