Method and apparatus for generating beamforming feedback
First Claim
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1. A method, comprising:
- determining, in a hardware device, channel state information (CSI) for a single data stream transmitted via a plurality of antennas;
determining, in the hardware device, cophasing angles for the plurality of antennas using the CSI;
transferring the cophasing angles from the hardware device to a controller coupled to the hardware device;
when steering vector feedback is to be transmitted, generating, in the controller, the steering vector feedback based on the cophasing angles; and
when explicit CSI feedback is to be transmitted, generating, in the controller, the explicit CSI feedback using the cophasing angles.
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Abstract
Channel state information (CSI) for a single data stream transmitted via a plurality of antennas is determined in a hardware device. Cophasing angles for the plurality of antennas are determined in the hardware device using the CSI. The cophasing angles are transferred from the hardware device to a controller coupled to the hardware device. When steering vector feedback is to be transmitted, the steering vector feedback is generated in the controller based on the cophasing angles. When explicit CSI feedback is to be transmitted, the explicit CSI feedback is generated in the controller using the cophasing angles.
16 Citations
20 Claims
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1. A method, comprising:
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determining, in a hardware device, channel state information (CSI) for a single data stream transmitted via a plurality of antennas; determining, in the hardware device, cophasing angles for the plurality of antennas using the CSI; transferring the cophasing angles from the hardware device to a controller coupled to the hardware device; when steering vector feedback is to be transmitted, generating, in the controller, the steering vector feedback based on the cophasing angles; and when explicit CSI feedback is to be transmitted, generating, in the controller, the explicit CSI feedback using the cophasing angles. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An apparatus, comprising:
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a hardware device configured to calculate a plurality of cophasing angles for a plurality of transmit antennas using channel state information (CSI); a controller coupled to the hardware device, the controller configured to, when steering vector feedback is to be transmitted, generate the steering vector feedback based on the cophasing angles, and when explicit CSI feedback is to be transmitted, generate the explicit CSI feedback based on the cophasing angles. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification