System for parameter estimation and tracking of interfering digitally modulated signals
US6947505B2 · kind B2 · utility
27Cited by
11References
9Claims
0Family size
Assignee
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Key dates
| Filing date | Aug 31, 2001 |
| Grant date | Sep 20, 2005 |
| Priority date | — |
| Expiry date | Nov 7, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2027/0083
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In a multi-user detection system in which interfering signals are purposely allowed to exist, a parameter estimation unit is provided which utilizes signal processing for determining the channel transfer function for each received signal, including the received power, phase of the oscillator, timing offset relative to the base station clock carrier frequency offset, and number of multipaths replicas and delays for each replica, with the system providing realtime uninterrupted estimates of these parameters required by the signal separation unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.