Multiuser detection method and device
US7130353B2 · kind B2 · utility
6Cited by
9References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 11, 2001 |
| Grant date | Oct 31, 2006 |
| Priority date | — |
| Expiry date | Nov 28, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/7103
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Method of detecting a plurality of symbols (dk(i)) transmitted by or for a plurality K of users, each symbol belonging to a modulation constellation and being the subject of a spectral spreading before being modulated on a plurality L of carriers, the method comprising a step of demodulation (420) and a step of spectral despreading (430) of the received signal (r(i)) in order to supply a vector (y2(i), {tilde over (y)}2(i)) characteristic of the signal, and a step (450) of searching, within an array of points (Λ2,Ω2) generated by the symbols of the modulation constellations, for at least the closest neighbour of the vector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.