US 12,587,261 B2 · Predictive signal boosting in distributed tile controllers for reconfigurable metasurfaces

Abstract

The technology described herein is directed towards implementations of artificial intelligence (AI)-controlled unit cell subarrays for an active reconfigurable intelligent surface. The reconfigurable intelligent surface integrates an AI model-controlled switch and power amplifier in each subarray of unit cells to selectively amplify the reflected signal, resulting in variable power levels of the reflected signal. The AI model adapts to changing conditions including signal characteristics in real-time, adjusting amplification levels based on various factors for optimizing communication quality, while conserving power consumption by only amplifying to a determined amplification level. Power is also saved by sharing the switch and power amplifier in each subarray of unit cells. Via the per subarray switch, the design provides a device for receiving and reflecting the electromagnetic signal as a signal amplified (or not) to an AI-determined level by coupling the RF energy, processing, and selectively amplifying or not amplifying the reflected signal per subarray.

Claims20

Dependent claims

A system, comprising:

at least one processor;
and
at least one memory that stores executable instructions that, when executed by the at least one processor, facilitate performance of operations, the operations comprising:
obtaining signal data representative of signal quality with respect to a previously redirected electromagnetic signal by a reconfigurable intelligent surface, wherein a trained model is coupled to a controller that controls the reconfigurable intelligent surface;
obtaining, by the controller from the trained model based on the signal data, decision data representing a selected subgroup of respective amplifiers of a group of available amplifiers coupled to the reconfigurable intelligent surface for amplification incoming electromagnetic signals impinging on unit cells of the reconfigurable intelligent surface;
and
controlling, by the controller, a subgroup of respective switches, corresponding to the selected subgroup of respective amplifiers, into respective first switch states to couple respective outputs of the respective amplifiers to respective subarrays of the unit cells, to redirect an incoming electromagnetic signal from the respective subarrays of the unit cells as an amplified redirected electromagnetic signal.

4 more elements

A method, comprising:

obtaining, by a system comprising a controller, signal data representative of signal quality with respect to a previously redirected electromagnetic signal by a reconfigurable intelligent surface;
determining, by the system based on the signal data, amplification-related data representative of a combined amplification level for the reconfigurable intelligent surface with respect to redirecting an incoming electromagnetic wave as a redirected instance of the incoming electromagnetic wave;
and
controlling, by the system based on the combined amplification level, respective switches associated with unit cells of the reconfigurable intelligent surface, to:
operate a first subgroup of the respective switches in a first switch state that couples the incoming electromagnetic wave to respective amplifiers coupled to the respective switches, for redirection of first respective portions of the incoming electromagnetic wave as amplified first respective portions, and
operate a second subgroup of the respective switches in a second switch state that bypasses the respective amplifiers coupled to the respective switches and redirects second respective portions of the incoming electromagnetic wave as non-amplified second respective portions.

3 more elements

A system, comprising:

a reconfigurable intelligent surface configured to redirect incoming electromagnetic signals, the reconfigurable intelligent surface comprising respective subarrays of unit cells;
a controller coupled to a trained model and coupled to the respective subarrays via respective switches;
and
respective amplifiers configured to be selectively coupled to the respective subarrays via the respective switches,
wherein the controller is configured to:
obtain signal data representative of a previously redirected electromagnetic signal by the reconfigurable intelligent surface,
input the signal data into the trained model to obtain an output representative of respective individual switch states of the respective switches, and
control the respective individual switch states of the respective switches based on the output to selectively couple zero or more of the respective amplifiers, to establish an amplification level of an outgoing electromagnetic signal, redirected from the reconfigurable intelligent surface, based on an incoming electromagnetic signal.

5 more elements

Dependencies are inferred from the claim text.

Predictive signal boosting in distributed tile controllers for reconfigurable metasurfaces

Life of this patent

Predictive signal boosting in distributed tile controllers for reconfigurable metasurfaces

Life of this patent

Abstract

Claims20