Methods and apparatus are provided. In an example aspect, a method performed by a first wireless communication device of establishing a connection for wireless communication is provided. The method includes receiving, on a first wireless communications channel, information about a reflective surface. The method also includes establishing, based on the information about the reflective surface, the connection for wireless communication with a second wireless communication device via the reflective surface on a second wireless communications channel, wherein the second wireless communications channel is different to the first wireless communications channel.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive configuration information identifying a set of sub-bands for receiving, via a set of reconfigurable intelligent surfaces (RISs), a signal. The UE may receive, via a first RIS of the set of RISs, the signal in a first sub-band of the set of sub-bands. The UE may receive, via a second RIS of the set of RISs, the signal in a second sub-band of the set of sub-bands. The UE may transmit, based at least in part on receiving the signal, RIS information indicating at least one of: first RIS information regarding the first RIS, or second RIS information regarding the second RIS. Numerous other aspects are described.

A wireless network system comprises a transmitter, a plurality of receivers, and a reconfigurable intelligent surface configured to relay communication between the transmitter and the plurality of receivers. The transmitter transmits an RTS frame to each of the plurality of the receivers through the reconfigurable intelligent surface. At least two receivers of the plurality of receivers respectively transmit a CTS frame to the transmitter through the reconfigurable intelligent surface in response to the RTS frame. The transmitter is configured to transmit a plurality of data frames simultaneously to the at least two receivers that transmitted the CTS frame, respectively, through the reconfigurable intelligent surface.

Disclosed are systems, apparatuses, processes, and computer-readable media for wireless communications. For example, a reconfigurable intelligent surface (RIS) can receive a start RIS working mode configuration message comprising an indication to start a power saving mode. The RIS can configure, based on the power saving mode, a meta-element configuration for meta-elements of the RIS from a set of meta-element configurations.

Provided are an information processing device, an information processing method, and a computer program that enhance spectrum utilization efficiency in an effective manner.

An information processing device of the present disclosure includes a processing unit that calculates, on the basis of position information regarding a first receiver and arrangement information regarding a repeater that reflects a first radio wave transmitted from a first transmitter to relay the first radio wave to the first receiver, an interference source region for determining whether or not a second transmitter that makes a secondary use of a spectrum identical to or adjacent to a spectrum used by the first transmitter and the first receiver is located at a position where there is a possibility that a second radio wave transmitted by the second transmitter is reflected by the repeater to cause interference affecting the first receiver.

Systems and methods for repeater latency signaling are provided. In some embodiments, a method performed by a first network node includes: providing a repeater latency capability to a second network node; receiving a repeater side control information; and applying the repeater side control information at an application time instant according to a latency configuration. The latency configuration or the repeater side control information is related to: repeater beam switching; repeater-Fwd ON/OFF; repeater power control; or control signal decoding. In this way, the second network node (e.g., gNB) can be informed about the NCR latency and can have proper synchronization. This enables the proper integration of the NCRs into the network and, hence, improve the coverage extension.

A method of operating a virtualized radio access network (VRAN), where a radio cell of the vRAN includes one or more virtualized base stations (vBSs) serving a number of users located within a coverage area of the radio cell, and at least one reconfigurable intelligent surface (RIS). The vBSs include radio units (RUs), and distributed units (DUs), where each RU is associated with at least one DU, and where the DUs are deployed in an edge computing device sharing the computing device's available computing resources. The method includes determining, using a controller, configuration parameters of the at least one RIS in terms of gain and/or phase of reflective elements of the RIS that minimize a computing overhead of the DUs deployed in the edge computing device. The method can use Artificial Intelligence (AI) and Machine Learning (ML) operations for optimizing computing consumption of a vRAN with improved decision making.

A radio wave propagation environment reproduction system according to an embodiment includes: a transmitter to transmit radio waves in a predetermined direction in a reverberation chamber; a reflection angle change RIS to reflect the radio waves transmitted; an installation angle controller to control an installation angle of the reflection angle change RIS; a reflection angle controller to control a reflection angle of the radio waves; a direction-of-arrival estimator to estimate a direction of arrival of the radio waves reflected; and a control server to control the installation angle controller and the reflection angle controller on the basis of the direction of arrival of the radio waves estimated.

Aspects of the disclosure are directed to signaling of environment information from a sensing component. In an aspect, the sensing component may correspond to a sensing server (or sensing management function (SnMF)) or a sensing node (e.g., a wireless node capable of receiving and measuring sensing signals for monostatic sensing or bistatic sensing). In an aspect, utilizing environment information from a sensing component (e.g., as opposed to coarse radio frequency (RF) environment information which is tracked by a location management function (LMF)) may facilitate various technical advantages, such as improving sensing and/or position estimation accuracy and/or reducing sensing and/or position estimation latency, improving beam management procedure(s) and/or a channel state information (CSI) procedure(s), and so on.

Proposed are an apparatus and a method for configuring beam setting and a control signal on the basis of an RIS in a wireless communication system. An operation method performed by a reconfigurable intelligence surface (RIS) operating in a communication path between a base station and a user equipment (UE) in a wireless communication system includes dynamically optimizing, by the RIS on the basis of a control signal received from the base station, a reflection pattern and transmitting the reflection pattern to the user equipment, and restoring communication by setting an alternate path according to the control signal received from the base station when the user equipment moves or the path is blocked due to an environment change.