Detectors for CDMA systems
US6301293A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 4, 1998 |
| Grant date | Oct 9, 2001 |
| Priority date | — |
| Expiry date | Aug 4, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/7093
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Linear space-time multiuser detectors are described that combine array processing, rake detection, and multiuser detection and that satisfy a minimum mean-squared error criteria. Both embodiments can be implemented adaptively so as to account for unknown sources of interference. The adaptive implementation of the first embodiment of a linear space-time detector requires explicit estimates of the channel coefficients. On the other hand, the adaptive implementation of the second embodiment does not require these estimates since they can be adaptively obtained. Both of these detectors provide significant performance advantages over single-user space-time detectors and over multiuser detectors which do not account for CDMA interference from unknown sources.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.