Patent ID: 6330431
Filing Date: 2001-12-11
Classification: H04B

Abstract:
A method of measuring the quality of a received signal burst, the method comprising:deriving a plurality of signal sample streams from the received signal burst;obtaining an impairment correlation matrix from the derived signal sample streams;deriving a measure of the signal power in the received signal burst;deriving a measure of the noise power in the received signal burst from the impairment correlation matrix;deriving a measure of the burst quality with respect to carrier to noise ratio using an algorithm of the general form: ##EQU10##where: ##EQU11##where:c is the carrier estimateI is the interference estimateN is the noise estimatewhere: ##EQU12##T is the number of antennasM is the number of samples per symbol period andP.sub.ii are the diagonal elements of an inverse impairment correlation matrix.