초록 ▼

An optimum combiner that reduces the amount of interference imposed upon a first base station by transmissions of other base stations within the same communication system. Two antennas are used to receive transmissions within a receiving station. A rake receiver is coupled to each antenna. By optima

An optimum combiner that reduces the amount of interference imposed upon a first base station by transmissions of other base stations within the same communication system. Two antennas are used to receive transmissions within a receiving station. A rake receiver is coupled to each antenna. By optimally combining the signals that are received by each independent finger of the rake receiver, interference that is correlated between a finger associated with the first antenna and a finger associated with the second antenna can be minimized with respect to the desired signal. Optimum combining requires determination of optimum combining coefficients. A max-ratio combining algorithm may be substituted for the optimal combining algorithm depending upon interference characteristics.

대표청구항 ▼

1. A method of computing optimal combining coefficients for a plurality of received signals, comprising the steps of:estimating an autocorrelation matrix for the plurality of signals based on received noise and interference associated with the plurality of signals; comparing the magnitudes of off-di

1. A method of computing optimal combining coefficients for a plurality of received signals, comprising the steps of:estimating an autocorrelation matrix for the plurality of signals based on received noise and interference associated with the plurality of signals; comparing the magnitudes of off-diagonal elements of the autocorrelation matrix with the magnitudes of diagonal elements of the autocorrelation matrix; setting the off-diagonal elements equal to zero if the magnitudes of the off-diagonal elements are significantly less than the magnitudes of the diagonal elements; and computing a plurality of optimal combining coefficients based on the autocorrelation matrix.