Interference canceller

Details Interference canceller Interference canceller

2007-01-09

2007-01-09

Ghayour, Mohammed (Department: 2611)

Pulse or digital communications

Spread spectrum

Direct sequence

C375S140000, C375S147000

Reexamination Certificate

active

10477756

ABSTRACT:
Multi-beam demodulators for low-rate user signals and multi-beam interference canceller demodulators for high-rate user signals remove interference components from corresponding beam signals and output a soft decision value as the demodulation result. Adaptive beam demodulators for low-rate user signals and adaptive beam demodulators for high-rate user signals perform demodulation by using the beam signals from which the interference components has been removed and output a soft decision value as the demodulation result. The demodulators for the low-rate user signals select and output an optimal soft decision value based on the SIR estimate and the demodulators for the high-rate user signals select and output an optimal soft decision value based on the SIR estimate.

REFERENCES:
patent: 10-190495 (1998-07-01), None
patent: 11-252045 (1999-09-01), None
patent: 11-274976 (1999-10-01), None
patent: 2000-138605 (2000-05-01), None

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