Multi-user detection method for a receiver in a MC-CDMA telecommunication system
US7286517B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 11, 2002 |
| Grant date | Oct 23, 2007 |
| Priority date | — |
| Expiry date | Aug 18, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/2647
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present invention concerns a multi-user detection method for a receiver in a MC-CDMA telecommunication system, each communication to or from a user of the system being coded with a signature, the signal received by said receiver being decomposed into a first plurality of frequency components, where the frequency components are subjected to a first filtering matched to the respective signatures of a second plurality of users and to the common or the respective responses of the transmission channels associated to the communications to or from said users; a first estimation of the symbols transmitted to or by the users is obtained from the output of the first filtering; a multi-user interference is derived from the first estimation and subtracted from the output of the first filtering to provide a cleared output; a second estimation of the symbols transmitted to or by the users is obtained from the cleared output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.