Communication device and a method for beamforming
AssigneeIntel Corporation
InventorsRoya Doostnejad, Wook Bong Lee, Oner Orhan
Life of this patent
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Abstract
A method for a communication device with at least one antenna array composed of a plurality of antenna elements, each of the plurality of antenna elements coupled to a corresponding phase shifter of a plurality of phase shifters. The method includes determining an optimized beam forming weight for each of the plurality of phase shifters by maximizing an array gain of the antenna array for each steering angle of a plurality of pre-defined steering angles to generate a set of optimized beam forming weights for each steering angle; and configuring the plurality of phase shifters with the set of optimized beam forming weights for a selected steering angle to perform beam forming in direction of the selected steering angle.
Claims24
A method for beamforming used in a communication device having one or more antenna arrays configured to have a plurality of antenna elements, each of the plurality of antenna elements coupled to a corresponding phase shifter of a plurality of phase shifters, the method comprising:
- setting a plurality of pre-defined steering angles;
- determining an optimized beam forming weight for each of the plurality of phase shifters by maximizing an array gain of the one or more antenna arrays for each steering angle of the plurality of pre-defined steering angles;
- wherein the optimized beam forming weight represents a phase shift θ;
- generating a set of optimized beam forming weights for each steering angle based on the optimized beam forming weight for each of the plurality of phase shifters;
- and
- configuring the plurality of phase shifters with the set of optimized beam forming weights for a selected steering angle to perform beam forming in a direction of the selected steering angle.
A method for a communication device with at least one antenna array composed of a plurality of antenna elements and a plurality of phase shifters, each of the plurality of antenna elements coupled to a respective phase shifter, the method comprising:
- determining a set of optimized phase shifts for the plurality of phase shifters to perform beam forming along a direction of each steering angle of a plurality of pre-defined steering angles;
- adding an additional phase having a distribution to account for a beam broadening to a set of optimized phase shifts to generate a set of optimized phase shifts for a selected beam broadening and a selected steering angle;
- and
- configuring the plurality of phase shifters with a set of optimized phase shifts corresponding to the selected beam broadening and the selected steering angle to perform beam forming in direction of the selected steering angle with a beam having the selected beam broadening.
A method for a communication device with at least one antenna array composed of a plurality of antenna elements and a plurality of phase shifters, each of the plurality of antenna elements coupled to a respective phase shifter, the method comprising:
- determining a set of optimized phase shifts for the plurality of phase shifters;
- setting at least one beam forming parameter;
- retrieving a code word of a plurality of code words from a codebook, each of the plurality of code words representing the set of optimized phase shifts for the plurality of phase shifters;
- wherein each of the code words is associated with the at least one beam forming parameter;
- using the code word to configure the plurality of phase shifters to perform beamforming corresponding to the at least one beam forming parameter.
A communication device comprising
- a radio frequency (RF) unit configured to have one or more antenna arrays, wherein each of the antenna arrays is configured to have of a plurality of antenna elements:
- wherein each of the plurality of antenna elements is coupled to a corresponding phase shifter of a plurality of phase shifters;
- wherein the plurality of phase shifters are configurable with a set of optimized beamforming weights for each steering angle of a plurality of pre-defined steering angles;
- wherein each optimized beamforming weight represents a phase shift θ;
- and
- a baseband unit configured to generate a set of optimized beamforming weights for each steering angle of the plurality of pre-defined steering angles,
- wherein the baseband unit is further configured to provide the plurality of phase shifters with the set of optimized beam forming weights for a selected steering angle;
- and
- wherein the RF unit is configured to perform beam forming in a direction of the selected steering angle.
A non-transitory computer readable medium with computer readable instructions to cause a processor to execute a method for a communication device with at least one antenna array composed of a plurality of antenna elements, each of the plurality of antenna elements coupled to a corresponding phase shifter of a plurality of phase shifters, the method comprising:
- determining an optimized beam forming weight for each of the plurality of phase shifters by maximizing an array gain of the antenna array for each steering angle of a plurality of pre-defined steering angles to generate a set of optimized beam forming weights for each steering angle;
- wherein the optimized beamforming weight represents a phase shift θ;
- and
- configuring the plurality of phase shifters with the set of optimized beam forming weights for a selected steering angle to perform beam forming in direction of the selected steering angle.
Dependencies are inferred from the claim text.