Patent ID: 6137773
Filing Date: 2000-10-24
Classification: H04B,H04W

Abstract:
An apparatus, responsive to a code division multiple access (CDMA) signal for determining signal quality of the CDMA signal, comprising:circuit means for determining a correlation function of the CDMA signal and a reference signal over at least one Walsh code period for each of a plurality of Walsh code channels, wherein said reference signal consists solely of either +1 or -1 digital values thereby simplifying overall hardware and operations, wherein said circuit means includes:means for determining a summation of a magnitude squared of said correlation function of the CDMA signal and said reference signal for each Walsh code channel over at least one Walsh code period; andmeans for determining a summation of a magnitude squared of the CDMA signal; andparameter determining means, responsive to said correlation function, for determining at least one parameter of the CDMA signal.