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US 2017/0317735 A1Published application
Ping pong beamforming
AssigneeIntel IP Corporation
InventorsElisabeth DE CARVALHO, Jørgen Bach ANDERSEN
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Abstract
Embodiments of the present disclosure provide an iterative procedure relying on ping-pong transmissions between two antenna arrays to determine desired beamforming weights at each device. Other embodiments may be described and claimed.
Claims25
One or more non-transitory, computer-readable media having instructions that, when executed, cause a first device to:
- send a first training signal using a first weight vector to a second device;
- receive, from the second device, a second training signal sent using a second weight vector;
- estimate, based on the second training signal, a first indexed signal that is a product of the second weight vector and a second channel;
- determine a third weight vector based on a complex conjugate of the estimate;
- and
- normalize the third weight vector.
3 more elements
An apparatus comprising:
- transceiver circuitry;
- and
- control circuitry coupled with the transceiver circuitry, the control circuitry to
- receive, from a device, a first training signal transmitted using a first weight vector;
- estimate, based on the first training signal, a first indexed signal that is a product of the first weight vector and a first channel;
- determine a second weight vector based on a complex conjugate of the estimate;
- and
- normalize the second weight vector.
5 more elements
A method of operating a first device comprising:
- sending a first training signal using a first weight vector to a second device;
- receiving, from the second device, a second training signal sent using a second weight vector;
- estimating, based on the second training signal, a first indexed signal that is a product of the second weight vector and a second channel;
- determining a third weight vector based on a complex conjugate of the estimate;
- and
- normalizing the third weight vector.
3 more elements
Dependencies are inferred from the claim text.