US 6,122,309 A · Method and apparatus for performing interference suppression using modal moment estimates

Abstract

The invention relates to a communication system (300) having a receiver (304) that is capable of performing targeted interference suppression. An interference classifier (314) within the receiver (304) analyzes a signal received from a channel (306) and identifies and classifies interference components within the signal. An interference suppressor (316) then suppresses the interference components in the signal based on interference type. The interference suppressor (316) includes a plurality of interference suppression modules that are each optimal for suppressing certain interference types. In one embodiment, one or more of the interference suppression modules perform interference suppression using modal moment estimates to identify different modes within the signal.

Claims18

Dependent claims

An apparatus for reducing interference components in a received signal in a spread spectrum communications system, comprising:

a signal receptor for receiving a signal from a communications channel;
a modal moment estimator for determining modal moment estimates for components in said signal, said modal moment estimates including a mean magnitude estimate and a standard deviation estimate;
an interference suppressor for suppressing an interference component in said signal using said modal moment estimates;
and
said modal moment estimator includes means for obtaining a frequency domain representation of said signal, said frequency domain representation indicating a magnitude level for each of a plurality of frequencies in said signal.

2 more elements

Dependencies are inferred from the claim text.

Method and apparatus for performing interference suppression using modal moment estimates

Life of this patent

Method and apparatus for performing interference suppression using modal moment estimates

Life of this patent

Abstract

Claims18