method for beam forming using an antenna array, antenna array, network node, wireless device, computer program, and, computer program product.

摘要

beam forming mechanisms are provided using an antenna array comprising dual polarized elements. One method comprises generating one or two beam ports, wherein the one or two beam ports are defined by combining at least two non-overlapping subarrangements. each subarray has two subarrangement ports, the two subarrangement ports having identical power patterns and mutually orthogonal polarization. the at least two non-overlapping subarrangements are combined by means of expansion weights. expansion weights map the one or two beam pair ports to subarray doors such that the one or two beam ports have the same power pattern as the subarrangements. at least some of the expansion weights have identical nonzero magnitude and are phase related to form a transmission lobe. The method comprises transmitting signals using said one or two beam ports.