公开(公告)号：US11984946B2

公开(公告)日：2024-05-14

申请号：US18471691

申请日：2023-09-21

Applicant: Nokia Solutions and Networks Oy

Inventor： Saeed Reza Khosravirad ,  Divyakumar Mahiman Badheka ,  Jakub Sapis

IPC: H04B7/04 ,  H04B7/0456

CPC classification number: H04B7/04013 ,  H04B7/0456

Abstract: According to an aspect, there is provided an apparatus for performing the following. The apparatus maintains, in at least one memory, information on a reference incidence direction and reference configuration information defining a plurality of configurations of a plurality of tunable load impedance circuits of a tunable reflective array of a reconfigurable intelligent surface or a subpanel thereof for the reference incidence direction. The apparatus measures an incidence direction from which electromagnetic waves are received by the reconfigurable intelligent surface. The apparatus calculates, based on the reference incidence direction, the measured incidence direction and the reference configuration information, corrected configuration information defining a plurality of corrected configurations for the measured incidence direction. Finally, the apparatus configures the plurality of tunable load impedance circuits according to a corrected configuration.