Methods, apparatuses, and computer-readable storage media for performing multidimensional beamforming

摘要

Methods, apparatuses and computer-readable storage media perform phasing of a first array including one or more antenna elements and phasing of a second array including one or more antenna elements to provide a combined radiation pattern for the first and second arrays, the first array having a first radiation pattern and the second array having a second radiation pattern, wherein the first radiation pattern is substantially orthogonal to the second radiation pattern. The combined radiation pattern is controlled in a first dimension based upon an uplink channel measurement. The combined radiation pattern is controlled in a second dimension based upon a precoding feedback from a user equipment (UE).

主权项

1. A method comprising:
phasing a vertical dimension of an array including multiple antenna elements and phasing an azimuthal dimension of the array to provide a combined radiation pattern for the array, the vertical dimension of the array having a first radiation pattern and the azimuthal dimension of the array having a second radiation pattern; and controlling in a downlink transmission the combined radiation pattern in both the vertical and azimuthal dimensions at least by simultaneously:
controlling in the downlink transmission the combined radiation pattern in the vertical dimension based upon an uplink channel measurement; andcontrolling in the downlink transmission the combined radiation pattern in the azimuthal dimension based upon a precoding feedback from a user equipment.