Receiver apparatus using maximum-likelihood-determination
US7609788B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 15, 2004 |
| Grant date | Oct 27, 2009 |
| Priority date | — |
| Expiry date | Jul 5, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/03324
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A metric calculating unit calculates a metric based on a provisional determination of a transmission signal and a reception signal. A lattice-point-range setting/estimate-symbol generating unit forms a hypersphere centering around a reception signal point based on the calculated metric or an updated metric, and determines whether a candidate of an estimate symbol is present within the hypersphere. A metric calculating/comparing unit calculates a metric based on the candidate of the estimate symbol and the reception signal, stores a minimum metric and corresponding candidate of the estimate symbol, and updates stored information when a newly calculated metric is minimum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.