Configuring multiple subarrays for a reconfigurable intelligent surface device

A controller, comprising:

• at least one memory;
• and
• at least one processor coupled with the at least one memory and configured to cause the controller to:
• transmit information indicating a partitioning scheme to a reconfigurable intelligent surface device that partitions the reconfigurable intelligent surface device into a plurality of subarrays, wherein the information indicating the partitioning scheme defines a spatial arrangement of elements of the reconfigurable intelligent surface device into two or more independently controllable subarrays;
• and
• after transmitting the information indicating the partitioning scheme, transmit a control signal to the reconfigurable intelligent surface device to configure the plurality of subarrays, wherein the control signal comprises phase control parameters of each subarray of the plurality of subarrays, and wherein the phase control parameters are independently configurable for each subarray to generate respective reflection directions for different subarrays.

A reconfigurable intelligent surface device, comprising:

• at least one memory;
• and
• at least one processor coupled with the at least one memory and configured to cause the reconfigurable intelligent surface device to:
• receive information indicating a partitioning scheme that partitions the reconfigurable intelligent surface device into a plurality of subarrays, wherein the information indicating the partitioning scheme defines a spatial arrangement of elements of the reconfigurable intelligent surface device into two or more independently controllable subarrays;
• and
• after receiving the information indicating the partitioning scheme, receive a control signal from a controller, wherein the control signal is used to configure the plurality of subarrays, wherein the control signal comprises phase control parameters of each subarray of the plurality of subarrays, and wherein the phase control parameters are independently configurable for each subarray to generate respective reflection directions for different subarrays.

A processor for wireless communication, comprising:

• at least one controller coupled with at least one memory and configured to cause the processor to:
• receive information indicating a partitioning scheme that partitions a reconfigurable intelligent surface device into a plurality of subarrays, wherein the information indicating the partitioning scheme defines a spatial arrangement of elements of the reconfigurable intelligent surface device into two or more independently controllable subarrays;
• and
• after receiving the information indicating the partitioning scheme, receive a control signal from a controller, wherein the control signal is used to configure the plurality of subarrays, wherein the control signal comprises phase control parameters of each subarray of the plurality of subarrays, and wherein the phase control parameters are independently configurable for each subarray to generate respective reflection directions for different subarrays.