Certain aspects of the present disclosure provide techniques for communicating with an ad hoc intelligent reflecting surface (IRS). A method that may be performed by a user equipment includes receiving signals from a network entity via an ad hoc IRS; configuring the IRS for communications between the UE and the network entity based at least in part on the received signals; and communicating with the network entity through the IRS.

A method, controller and network node for using intelligent surfaces in a wireless communication system are disclosed. According to one aspect, method in a network node configured to communicate with a wireless device (WD), via a reconfigurable reflective surface, the reconfigurable reflective surface being controllable by a controller and being applied to a structure to controllably reflect signals exchanged between the network node and the WD. The method includes determining a configuration of the reconfigurable reflective surface associated with the WD, the determined configuration being associated with a particular reflection coefficient, transmitting to the controller of the reconfigurable reflective surface, an indication of the determined configuration, and receiving signals from the WD at least partially via reflection at the reconfigurable reflective surface.

This disclosure discloses a communication method and apparatus. In the method, a reflector is used to assist in communication between a terminal and an access network device, and in a reflector-assisted communication process, the reflector is indicated to be in a working mode when being required by the terminal or the access network device, to assist in communication, and the reflector is indicated to be in a sleep mode when being required by the terminal or the access network device, to reduce power consumption.

A method for enhancing receiving signal power at a receiver is provided. The method includes estimating a channel gain by transmitting a pilot signal to the receiver through each antenna from a plurality of antennas of a transmitter and an IRS, determining an antenna selection metric based on the channel gain in transmitting the pilot signal to the receiver through each antenna of the transmitter and the IRS, identifying an antenna from the plurality of antennas that causes to provide the largest antenna selection metric, determining a reflection coefficient for each reflector of the IRS based on the identified antenna, configuring the reflectors of the IRS with the reflection coefficient, and transmitting the signal to the receiver through the identified antenna and the configured reflectors.

According to the present disclosure, there are provided methods and devices for utilizing controllable metasurface devices capable of redirecting a wavefront transmitted by a transmitter to a receiver in the wireless network to take advantage of the controllable metasurface device capabilities, intelligence, coordination and speed, and thereby enable solutions having different signaling details and capability requirements.

Aspects of the present disclosure provide methods of utilizing controllable metasurface devices capable of redirecting a wavefront transmitted by a transmitter to a receiver in the wireless network to take advantage of the controllable metasurface device capabilities, intelligence, coordination and reconfiguration speed, and thereby enable solutions having different signaling details and capability requirements. Methods described herein provide mechanisms for identification of a RIS deployed in a communication network, identification of possible RIS to UE links, setup of base station (BS) to RIS links and RIS to UE links, activation of the RIS, and configuration of UEs to receive data from the BS via redirection by the RIS.

A communication method, device, and system belong to the field of communication technologies. A first device may determine a frame structure and perform communication based on the frame structure, so that the first device may receive, in a receiving time unit, a setting instruction indicating a first state, and reflect a signal based on the first state in a reflection time unit.

A method for performing monitoring, commissioning, upgrading, analyzing, load balancing, remediating, and optimizing the operation, control, and maintenance of a plurality of remotely located RF signal repeater devices in a wireless network arranged to operate as an Internet of Things (IoT) network. Electronic RF signal repeater devices are employed as elements in the wireless network and communicate wireless radio frequency (RF) signals for a plurality of users. An RF signal repeater device may be arranged to operate as a donor unit device that provides RF signal communication between one or more remotely located wireless base stations, or other donor unit devices on the wireless network. Also, an RF signal repeater device may be arranged to operate as a service unit device that provides wireless RF signal communication between one or more user equipment devices (UEs) and a donor unit device or a wireless base station.

A design method for an intelligent reflecting surface (IRS) aided terahertz secure communication system is provided. The IRS aided terahertz multi-input single-output (MISO) system includes a base station (BS) equipped with N.sub.BS antennas, an IRS equipped with N.sub.IRS reflecting elements, a single-antenna user and a single-antenna eavesdropper. The BS transmits signals by the active hybrid beamforming to the relay of the IRS, and the IRS adjusts the signals and reflects the signals to the mobile user, which suppresses the received signal of the eavesdropper. The present invention maximizes the downlink secrecy rate by establishing a joint optimization function and maximizes the system data transmission rate by a cross-entropy based search method.

Examples provide a method of operating a first communication node (CN), wherein the first CN is configured for controlling a re-configurable relaying device (RRD), the RRD being re-configurable to provide spatial polarization filtering, the spatial polarization filtering being associated with an input spatial direction from which incident signals on a radio channel are accepted and with an output spatial direction into which the incident signals are transmitted by the RRD with configurable output polarizations set by the spatial polarization filtering, the method comprising providing, to the RRD, a control message indicative of predefined measurement spatial polarization filters; providing, to a second CN, a message requesting the second CN to transmit first reference signals associated with the predefined measurement spatial polarization filters, and receiving, on the radio channel from the second CN, first reference signals associated with the predefined measurement spatial polarization filters indicated by said control message, for estimation of channel matrices. Further, examples provide a method of operating a second CN and an RRD as well as corresponding first CNs, second CNs and RRDs.