Apparatus and method for trellis-based detection in a communication system
US8559540B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 14, 2010 |
| Grant date | Oct 15, 2013 |
| Priority date | — |
| Expiry date | Jan 29, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M13/1102
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An apparatus for trellis-based detection in a communication system including a processor and memory having computer program code configured to construct a trellis representing a transmitted signal formed from a plurality of symbols, each having a constellation size, transmitted by a number of transmit antennas, and form a log likelihood ratio at nodes of the trellis as a log-sum of a number of exponential terms corresponding to a hypothesized transmitted bit value of the plurality of symbols. The number of exponential terms is limited by a number of most likely paths of the trellis extending from each node of the trellis and the constellation size. The processor and memory including computer program code are further configured to form a list at each node of the trellis of a size limited to the number of the most likely paths of the trellis extending from each node of the trellis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.