Methods and apparatus for providing a ML decoding pipeline for QPSK MIMO OFDM receivers
US8265207B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2011 |
| Grant date | Sep 11, 2012 |
| Priority date | — |
| Expiry date | Dec 21, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/03286
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Methods and apparatus are provided for computing reliability values in a pipeline. A reliability value portion is computed, with control circuitry in a first pipeline stage, based on a difference between a received input signal value and an expected value. The reliability value portion is combined, in a second pipeline stage that follows the first pipeline stage, with a first value derived from the received input signal to generate a first reliability value. A determination is made as to whether to update the first reliability value in a third pipeline stage based on a combination of the first reliability value with a second reliability value that corresponds to a second value derived from the received input signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.