Methods, apparatuses, and computer-readable storage media for performing multidimensional beamforming
First Claim
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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; and
controlling in the downlink transmission the combined radiation pattern in the azimuthal dimension based upon a precoding feedback from a user equipment.
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Abstract
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).
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Citations
16 Claims
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1. A method comprising:
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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; and controlling in the downlink transmission the combined radiation pattern in the azimuthal dimension based upon a precoding feedback from a user equipment. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An apparatus comprising:
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at least one memory including computer program code; and at least one processor, the at least one memory and the computer program code configured, with the at least one processor, to cause the apparatus to perform at least the following; phase a vertical dimension of an array including multiple antenna elements and 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 control 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, and controlling in the downlink transmission the combined radiation pattern in the azimuthal dimension based upon a precoding feedback from a user equipment. - View Dependent Claims (9, 10, 11, 12)
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13. A non-transitory computer readable storage medium with an executable program stored thereon, wherein the program instructs a processing device to perform:
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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; and controlling in the downlink transmission the combined radiation pattern in the azimuthal dimension based upon a precoding feedback from a user equipment. - View Dependent Claims (14, 15, 16)
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Specification