Patent ID: 8787248

Claim:
A method to reduce interference in an echo cancellation repeater for a wireless communication network, the repeater employing a first antenna array and a second antenna array, each antenna array including a first set of antenna elements for vertical feed mode and a second set of antenna elements for horizontal feed mode, the method comprising: (a) selecting a combination of antenna elements from the first and second antenna arrays; (b) receiving incoming receive signals on receiver circuits associated with the selected antenna elements; (c) generating correlation energy measurements indicative of correlation of the receive signals and one or more reference signals; (d) selecting a desired receive signal being a receive signal with a largest correlated energy level, excluding receive signals that are feedback signals of the repeater; (e) calculating antenna weights for the selected antenna elements using one of an error minimizing algorithm or an adaptive metric optimization algorithm; (f) determining a performance result associated with the selected combination of antenna elements; (g) storing calculated antenna weights and the performance result associated with the selected combination of antenna elements; (h) repeating steps (a) to (g) for one or more combinations of antenna elements from the first and second antenna arrays; and (i) selecting a combination of antenna elements from the first and second antenna arrays based on the stored performance results.