Interference canceller equipment and interference cancelling met

Details Interference canceller equipment and interference cancelling met Interference canceller equipment and interference cancelling met

1997-12-19

2000-12-05

Ghebretinsae, Temesghen

Pulse or digital communications

Receivers

Interference or noise reduction

375148, H04B 700

Patent

active

061576859

ABSTRACT:
A multistage interference canceller equipment and interference canceller method for use, for example, in CDMA (Code Division Multiple Access) multibeam-antenna communication system includes in each stage an interference canceller unit which has a replica signal generator which generates from an input beam signal a first interference replica signal and outputs a first error signal, and an interference removal unit which receives from another replica signal generator a second interference replica signal, multiplies that second interference replica signal by conversion coefficients and subtracts an obtained signal from the first interference replica signal to produce a second error signal so that an error signal is generated for each signal beam from the interference replica signals of a local signal beam and other signal beams to eliminate interference.

REFERENCES:
patent: 5467368 (1995-11-01), Takeuchi et al.
patent: 5757791 (1998-05-01), Kanterakis et al.

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