EQUIVALENT OFF STATE FOR A RECONFIGURABLE INTELLIGENT SURFACE

Methods, systems, and devices for wireless communications are described. A controller of a reconfigurable intelligent surface (RIS) may transmit a capability message indicating a capability of one or more configurable elements of the RIS to direct incoming signals in one or more directions for one or more frequency bands. For example, the configurable elements may have an ability to act as transparent to the signal, to direct the signal in an interference safe direction or frequency, and/or to diffuse the signal across multiple directions or frequencies. The controller of the RIS may control the one or more configurable elements in accordance with the capability message and an activity status of the RIS to direct a signal to at least one direction. In some cases, a network entity may transmit an indication of the at least one direction to the RIS controller.

FIELD OF TECHNOLOGY

The following relates to wireless communications, including equivalent off state for a reconfigurable intelligent surface (RIS).

BACKGROUND

SUMMARY

The described techniques relate to improved methods, systems, devices, and apparatuses that support equivalent off state for a reconfigurable intelligent surface (RIS). For example, the described techniques provide for a controller of a RIS to report a capability to direct incoming signals in one or more directions (e.g., preconfigured or otherwise defined). In some cases, the RIS may have a capability to act as transparent, a capability to direct a signal in a direction that may not cause interference (e.g., an interference safe direction), and/or a capability to diffuse the signal across multiple directions or frequencies. The RIS controller may control one or more configurable, or reflective, elements of the RIS to direct the signal to at least one direction in accordance with the capability.

A method for wireless communication at a controller of a RIS is described. The method may include transmitting a capability message including a capability of one or more configurable elements of the RIS to direct incoming signals in one or more preconfigured directions for one or more frequency bands and controlling, in accordance with the capability message and an activity status of the RIS, the one or more configurable elements of the RIS to direct a first signal associated with a first frequency band of the one or more frequency bands to a first preconfigured direction of the one or more preconfigured directions.

An apparatus for wireless communication at a controller of a RIS is described. The apparatus may include a processor, memory coupled with the processor, and instructions stored in the memory. The instructions may be executable by the processor to cause the apparatus to transmit a capability message including a capability of one or more configurable elements of the RIS to direct incoming signals in one or more preconfigured directions for one or more frequency bands and control, in accordance with the capability message and an activity status of the RIS, the one or more configurable elements of the RIS to direct a first signal associated with a first frequency band of the one or more frequency bands to a first preconfigured direction of the one or more preconfigured directions.

Another apparatus for wireless communication at a controller of a RIS is described. The apparatus may include means for transmitting a capability message including a capability of one or more configurable elements of the RIS to direct incoming signals in one or more preconfigured directions for one or more frequency bands and means for controlling, in accordance with the capability message and an activity status of the RIS, the one or more configurable elements of the RIS to direct a first signal associated with a first frequency band of the one or more frequency bands to a first preconfigured direction of the one or more preconfigured directions.

A non-transitory computer-readable medium storing code for wireless communication at a controller of a RIS is described. The code may include instructions executable by a processor to transmit a capability message including a capability of one or more configurable elements of the RIS to direct incoming signals in one or more preconfigured directions for one or more frequency bands and control, in accordance with the capability message and an activity status of the RIS, the one or more configurable elements of the RIS to direct a first signal associated with a first frequency band of the one or more frequency bands to a first preconfigured direction of the one or more preconfigured directions.

Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for receiving control signaling indicating the first preconfigured direction, the first frequency band, or both.

In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, controlling the one or more configurable elements of the RIS may include operations, features, means, or instructions for controlling the one or more configurable elements of the RIS to direct the first signal in a same direction as an incoming direction of the first signal, where the first preconfigured direction may be based on the incoming direction of the first signal.

In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, controlling the one or more configurable elements of the RIS may include operations, features, means, or instructions for receiving an indication of the first preconfigured direction.

In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, the first preconfigured direction includes a set of multiple first preconfigured directions based on the capability message indicating a maximum ratio of reflected power and incident power over the set of multiple first preconfigured directions for the first frequency band.

In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, controlling the one or more configurable elements of the RIS may include operations, features, means, or instructions for receiving an indication of a set of multiple frequencies for the one or more configurable elements of the RIS to shift at least a portion of a signal power associated with the directed first signal and controlling the one or more configurable elements to shift at least the portion of the signal power to at least a subset of the set of multiple frequencies.

Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for receiving control signaling indicating a second preconfigured direction of the one or more preconfigured directions for the one or more configurable elements of the RIS to direct a second signal associated with a second frequency band of the one or more frequency bands.

Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for receiving an indication of a target interference value corresponding to the directed first signal and determining the activity status based on the target interference value and the capability of the one or more configurable elements of the RIS to direct the incoming signals in the one or more preconfigured directions for the one or more frequency bands.

Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for determining the activity status based on whether a signal may be scheduled to be directed by the RIS towards a target wireless device.

A method for wireless communication at a first network entity is described. The method may include receiving a capability message including a capability of one or more configurable elements of a reconfigurable intelligent surface (RIS) to direct incoming signals in one or more preconfigured directions for one or more frequency bands and transmitting, in accordance with the capability message and an activity status of the RIS, first control signaling indicating a first preconfigured direction of the one or more preconfigured directions for the one or more configurable elements of the RIS to direct a first signal associated with a first frequency band of the one or more frequency bands.

An apparatus for wireless communication at a first network entity is described. The apparatus may include a processor, memory coupled with the processor, and instructions stored in the memory. The instructions may be executable by the processor to cause the apparatus to receive a capability message including a capability of one or more configurable elements of a RIS to direct incoming signals in one or more preconfigured directions for one or more frequency bands and transmit, in accordance with the capability message and an activity status of the RIS, first control signaling indicating a first preconfigured direction of the one or more preconfigured directions for the one or more configurable elements of the RIS to direct a first signal associated with a first frequency band of the one or more frequency bands.

Another apparatus for wireless communication at a first network entity is described. The apparatus may include means for receiving a capability message including a capability of one or more configurable elements of a RIS to direct incoming signals in one or more preconfigured directions for one or more frequency bands and means for transmitting, in accordance with the capability message and an activity status of the RIS, first control signaling indicating a first preconfigured direction of the one or more preconfigured directions for the one or more configurable elements of the RIS to direct a first signal associated with a first frequency band of the one or more frequency bands.

A non-transitory computer-readable medium storing code for wireless communication at a first network entity is described. The code may include instructions executable by a processor to receive a capability message including a capability of one or more configurable elements of a RIS to direct incoming signals in one or more preconfigured directions for one or more frequency bands and transmit, in accordance with the capability message and an activity status of the RIS, first control signaling indicating a first preconfigured direction of the one or more preconfigured directions for the one or more configurable elements of the RIS to direct a first signal associated with a first frequency band of the one or more frequency bands.

In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, the first control signaling indicates the first frequency band of the one or more frequency bands.

Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for transmitting, to one or more second network entities, a first message requesting an indication of the one or more frequency bands corresponding to frequency bands in use by the one or more second network entities, where the first message includes a location of the RIS and receiving, in response to the first message, at least one second message indicating the first frequency band.

Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for determining the first preconfigured direction may be a same direction as an incoming direction of the first signal, where the capability message indicates an ability of the RIS to direct the first signal in the same direction as the incoming direction of the first signal.

Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for selecting the first preconfigured direction of the one or more preconfigured directions based on the first preconfigured direction having an interference for one or more wireless devices below a threshold.

Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for transmitting a message requesting location information corresponding to the one or more wireless devices and requesting an indication of respective frequency bands in use by the one or more wireless devices and receiving, in response to the message, the location information and the indication of the respective frequency bands, where selecting the first preconfigured direction may be in accordance with the location information and the indication of the respective frequency bands.

Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for transmitting, to one or more second network entities, signaling including the location information, the indication of the respective frequency bands, the first preconfigured direction, or any combination thereof and receiving updated location information based on transmitting the signaling.

In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, the first preconfigured direction includes a set of multiple preconfigured directions based on the capability message indicating a maximum ratio of reflected power and incident power over the one or more preconfigured directions for the one or more frequency bands.

Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for transmitting an indication of a set of multiple frequencies for the one or more configurable elements of the RIS to shift at least a portion of a signal power associated with the directed first signal.

Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for determining a time period over which the RIS may be to direct the first signal in the first preconfigured direction and transmitting an indication of the time period to one or more second network entities.

Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for determining that a measurement of interference at a user equipment (UE) associated with a second frequency band of the one or more frequency bands satisfies a threshold interference value and transmitting second control signaling indicating a second preconfigured direction of the one or more preconfigured directions for the one or more configurable elements of the RIS to direct a second signal associated with the second frequency band.

Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for transmitting signaling including reference signal resources associated with the second frequency band and a request for the measurement of interference associated with the second frequency band and receiving, in response to the signaling, the measurement of interference, where determining the measurement of interference satisfies the threshold interference value may be based on receiving the measurement of interference.

Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for receiving, from a second network entity, an indication of the second frequency band, where determining the measurement of interference satisfies the threshold interference value may be based on receiving the indication of the second frequency band.

Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for transmitting an indication of a target interference value corresponding to the directed first signal.

Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for determining the activity status based on whether a signal may be scheduled to be directed by the RIS towards a target wireless device.

DETAILED DESCRIPTION

Some wireless communications systems may implement one or more reconfigurable intelligent surfaces (RISs) to redirect signaling towards a target device (e.g., a user equipment (UE) or a network entity) to extend coverage for wireless communication devices. A RIS may use one or more reflective elements to reflect, or propagate, a wave in a desired direction in a process called RIS reflection beamforming. During RIS reflection beamforming, the RIS may direct a main lobe of a reflection beam toward the target device, and the sidelobes of the beam may point in different directions. Additionally or alternatively, the RIS may include one or more refractive elements. Thus, the RIS may perform reflective beamforming, refractive beamforming, or a combination of the two.

In some cases, other network devices that are communicating near the RIS (e.g., but not using the RIS) may cause interference for the communications to the target device, or other devices within range of the RIS, due to accidental redirection of the communicated signal by the RIS. The interference may impact reception and decoding of the communications between the wireless devices. Thus, the wireless communications system may benefit from powering off the RIS when the RIS is not being used to assist in communications, such as by reducing interference for accidental reflection of nearby communications. However, powering off the RIS may be a power inefficient operation, may cause network delays due to frequent powering off and back on in dynamic environments, or both.

In some examples, a RIS controller may be capable of configuring one or more elements in an equivalent off state. For example, the RIS controller may update one or more parameters of the elements, which may also be referred to as configurable elements, to act as transparent, to direct incoming signals in directions that may cause limited or no interference, or to scatter incoming signals to diffuse the signal power by spreading the power in many directions. The RIS controller may report a capability of the RIS to redirect incoming signals for one or more frequency bands to a network entity. The network entity may exchange communications with neighboring network entities to determine one or more frequencies and location information being used for communications with wireless devices in the proximity and may select one or more directions for a frequency band to which the RIS may direct signals without causing interference for the communications with the wireless devices. The network entity may signal the selected directions, the frequency band, or both to the RIS controller. Additionally, or alternatively, the RIS controller may determine the one or more directions, the frequency band, or both independent of the network entity. In some cases, the RIS controller may control the elements to direct one or more signals for the frequency band in the directions.

In some examples, the wireless communications system100may implement one or more RISs and RIS controllers to extend coverage and improve spectral efficiency (e.g., by circumventing blockages via new multipaths) with negligible increase to power consumption. In some cases, a RIS controller (e.g., a RIS CU) may configure a characteristic of configurable elements (e.g., reflective or refractive elements) of a RIS to control the redirection characteristic from the RIS. For example, when the RIS is in an active state, or ON state, the RIS controller may control one or more configurable elements of the RIS to direct one or more incoming signals to target wireless devices. In some cases, the RIS may unintentionally reflect signaling not intended for redirection (e.g., a sidelobe of direct signaling between wireless devices) towards another wireless device, which may cause interference for communications at the other wireless device. Thus, when not in use, the network entity105may indicate for the RIS to switch to an OFF state when not involved in communications. However, the RIS switching from an ON state to an OFF state may degrade energy efficiency for the wireless communications system100.

Thus, the wireless communications system100may implement an equivalent OFF state for the RIS, in which the RIS directs incoming signaling not intended for redirection in one or more directions or frequencies that may not cause interference (e.g., an interference safe direction or frequency), instead of switching the RIS to the OFF state. In some cases, the configurable elements of the RIS may have the capability to act as transparent, such as by directing an incoming signal in a same direction as the incoming signal. In some other cases, the configurable elements of the RIS may have the capability to direct an incoming signal in a direction that the controller of the RIS determines may not cause interference for other wireless devices. Additionally, or alternatively, the configurable elements of the RIS may be capable of scattering an incoming signal in multiple directions or frequencies, which may be referred to as dithering a signal, or dither. The controller of the RIS may send a capability message indicating one or more of the capabilities of the RIS to act as transparent, direct an incoming signal in an interference-safe direction, or dither an incoming signal, such as for a frequency band or frequency range. The controller of the RIS may control the configurable elements of the RIS in accordance with the capability. In some cases, the network entity105may indicate a direction or frequency to which the RIS may direct the incoming signal.

FIG.2illustrates an example of a wireless communications system200that supports equivalent off state for a RIS in accordance with one or more aspects of the present disclosure. The wireless communications system200may implement or be implemented to realize aspects of the wireless communications system100. For example, the wireless communications system200illustrates communication between a UE115-a,a UE115-b,and a network entity105-a,which may be examples of corresponding devices described herein, including with reference toFIG.1. In some cases, the UE115-aand the network entity105-amay communicate via a communication link125-a,which may be an example of a communication link125as described with reference toFIG.1. A RIS205may direct a signal in one or more directions to reduce or prevent interference at the UE115-bfrom communications between the network entity105-aand the UE115-a.

In some cases, a network entity105-amay be in communication with one or more other network entities, such as a controller of the RIS205(e.g., a RIS CU210). In some other examples, the network entity105-amay be the controller of the RIS205. The RIS CU210may be referred to as a network entity, or any other controlling device (e.g., any device capable of wirelessly transmitting or receiving or capable of configuring or otherwise controlling one or more assisting devices), and may transmit signaling to the network entity105-avia a communication link215-a,may receive signaling from the network entity105-avia a communication link215-b,or both.

In some examples, the wireless communications system200may implement one or more RISs205to extend coverage and improve spectral efficiency (e.g., by circumventing blockages via new multipaths) with negligible increase to power consumption. A RIS205may include an array of passive and reconfigurable elements, which a RIS CU210may control. The new multipaths introduced by the RIS205may provide for a transmitting device to communicate with a receiving device that may otherwise not be within a communication range, such as due to objects blocking a line-of-sight (LoS) of communication between the transmitting device and the receiving device. Additionally, or alternatively, the RIS205may provide for selection of propagation features for communications.

In some cases, a RIS CU210may configure a characteristic of the RIS205to control the redirection properties of the RIS205with respect to one or more signals. For example, when the RIS is in an active state, or ON state, the RIS CU210may control one or more configurable elements220of the RIS205to direct one or more signals for communications using a reflection matrix, or reflection coefficients, for each of the configurable elements220. That is, the network entity105-amay transmit or receive control signaling, data, or both to and from a UE via the RIS205, which may be a near passive device (e.g., may not have power amplifiers) capable of redirecting an impinging or incident wave to a desired location or in a desired direction. The network entity105-amay transmit messaging to the RIS CU210indicating a configuration (e.g., coefficient matrix for the configurable elements220) of the RIS205, and the RIS CU210may configure the RIS205accordingly. For example, the RIS CU210may apply each of the coefficients to the configurable elements220of the RIS205.

A RIS205may function similarly to a mirror or other reflective surface in its ability to reflect incident beams or waves (such as light waves), but may differ in that a RIS205may include one or more components that may control how an incident beam or wave is reflected (such that an angle of incidence can be different than an angle of reflection). Additionally, or alternatively, the RIS205may control a shape of a reflected beam or wave, such as via energy focusing or energy nulling via constructive interference or destructive interference, respectively. For example, a RIS205may include a quantity of configurable elements220that each have a controllable delay, phase, or polarization, or any combination thereof. The RIS CU210may configure each of the configurable elements220to control how an incident beam or wave may be reflected or to control a shape of a reflected beam or wave. A RIS205may be an example of or may otherwise be referred to as a software-controlled metasurface, a configurable reflective surface, a reflective intelligent surface, or a configurable intelligent surface, and may sometimes be a metal surface (e.g., a copper surface) including a quantity of configurable elements220. In some aspects, a RIS CU210may be coupled with a RIS205via hardware (such as via a fiber optic cable). In some other aspects, a RIS CU210may be non-co-located with a RIS205and may configure the RIS205via over-the-air signaling. Although generally described herein as a reflective surface, it should be understood that an RIS205may alternatively or additionally include refractive elements that may also control an angle of redirection or a shape of a redirected beam or wave.

In some cases, a network entity105-aand a UE115-amay establish a communication link125-awith each other and may communicate using a beamforming technique. For example, the network entity105-amay transmit signaling via a beam with a main lobe225-aand a sidelobe230-a,to a UE115-a.However, when the network entity105-agenerates the main lobe225-aof the beam, the network entity105-amay also generate a sidelobe230-ain a different direction, such as towards the RIS205. The RIS205may unintentionally reflect the sidelobe230-atowards another wireless device. For example, the RIS205may unintentionally reflect the sidelobe230-atowards the UE115-b,which may cause interference for communications at the UE115-b.

Thus, the network entity105-amay indicate for the RIS205to switch to an OFF state (e.g., via the RIS CU210) when not involved in communications. For example, when the RIS205is not assisting in reflecting signaling between wireless devices, the RIS205may switch to an OFF state to avoid causing interference to nearby wireless devices or network nodes. However, switching the RIS205from an ON state to an OFF state may increase power consumption at the RIS205. Further, the frequency to which the RIS205switches between the ON and OFF states may increase for dynamic signaling environments, which may further degrade energy efficiency for the wireless communications system200.

Thus, the wireless communications system200may implement an equivalent OFF state for the RIS205, in which the RIS CU210controls the configurable elements220to direct the signaling in one or more directions or frequencies that may not cause interference (e.g., an interference safe direction or frequency), instead of switching the RIS to the OFF state. In some cases, the RIS CU210may determine the configurable elements220of the RIS205are capable of directing an incoming signal235from the sidelobe230-ain one or more directions, such as based on design considerations of the configurable elements220.

In some cases, the configurable elements220of the RIS205may have the capability to act as transparent, such as by directing an incoming signal235in a same direction240-aas the incoming signal235. If the configurable elements220of the RIS have the capability to act as transparent, the RIS CU210may be aware of this capability, and may report the capability to the network entity105-ain a capability message245. The capability message245may be dedicated to the capability information of the RIS205, or may be included in other control signaling. In some cases, the RIS CU210may transmit the capability message245to the network entity105-ain control signaling and/or based on a request from the network entity105-a.Then, at250, the RIS CU may control the configurable elements220of the RIS205, to provide for an incident wave to pass through the RIS in a direction240-a,which may be a same direction as the incoming signal235. For example, the configurable elements220of the RIS205may direct the incoming signal235resulting from the sidelobe230-atowards the direction240-a,such that the sidelobe230-acontinues on in the direction240-a.

In some cases, the RIS CU210may control the configurable elements220of the RIS205to act as transparent for one or more frequency ranges, such as to avoid an impedance mismatch between the configurable elements220of the RIS205and the wave travelling in the direction240-a.For example, the impedance of the configurable elements220of the RIS205may depend on a carrier frequency of the incoming signal235. An impedance mismatch may cause signal reflection back to the source of the signal (e.g., the network entity105-afor the incoming signal235). As such, the RIS CU210may control the configurable elements220of the RIS205to act as transparent at a frequency band with no impedance mismatch, but not for a frequency band with impedance mismatch, due to the impedance mismatch causing the RIS205to reflect at least some portion of the incident wave back towards the source of the incoming signal235. The network entity105-amay determine one or more frequency bands, or frequency ranges, in use by surrounding wireless devices to determine which frequency bands may cause impedance mismatch at the RIS205.

In some cases, the network entity105-amay determine one or more frequency bands in use within a geographical location (e.g., nearby area to the network entity105-a). For example, the network entity105-amay communicate with other wireless devices in the wireless communications system200to obtain an indication of which frequency bands are in use. Additionally, or alternatively, the network entity105-amay determine a location of the RIS205(e.g., from the RIS CU210, or by other means). The network entity105-amay use the indication of the frequency bands in use as well as location information of the RIS205to determine which services may be impacted by interference originating from the RIS205(e.g., from the incoming signal235). In some cases, the network entity105-amay send a message to one or more wireless devices (e.g., base stations, UEs, or other network entities) that may be impacted by the interference to request a frequency band usage report. The wireless devices may each report one or more current frequency bands in use to the network or directly to the network entity105-a.

In some cases, the network entity105-amay transmit a direction indication255to the RIS CU210, indicating one or more directions for the RIS CU210to control the configurable elements220to direct the incoming signal235. The direction indication240may include the direction240-aif there is little or no impedance mismatch for the current frequency bands in use (e.g., if the impedance mismatch satisfies a threshold value). Additionally, or alternatively, the network entity105-amay transmit a frequency indication260to the RIS CU210that indicates one or more frequency bands, or frequency ranges, that may cause impedance mismatch at the RIS205. Thus, the network entity105-amay reconfigure the RIS205via the RIS CU210with a transparent configuration if the RIS205is not assisting in other communication (e.g., the activity status of the RIS205is not active), and if there is minimal impedance mismatch. Additionally, or alternatively, the network entity105-amay shift, or may indicate for the wireless devices to shift, a carrier frequency of the incoming signal235to a frequency band with an impedance mismatch that satisfies a threshold value in the direction240-a.When the RIS205acts as transparent, the RIS205may maintain an ON state, while reducing or avoiding RIS-originated interference.

In some examples, the network entity105-amay determine a time period over which the RIS205is to act as transparent in the reported frequency bands, such as based on the location information of the RIS205, scheduling information for the incoming signal235, and the frequency bands in use. The network entity105-amay transmit an indication of the time period to surrounding wireless devices (e.g., other network entities), or to the network. In some cases, if a network entity105-astarts using another frequency band, the network entity105-amay configure the UEs served in the new frequency band with CSI-RS resources, and may request interference measurements from the UEs. If the measurement report indicates that the interference exceeds a threshold value, the network entity105-amay report the new frequency band to the network to report to the RIS CU210, or directly to the RIS CU210, to update the directions to which the RIS205reflects the incoming signal235(e.g., to reduce the interference). For example, the network entity105-amay determine an incoming signal235on a new frequency band exceeds an interference threshold value at a UE115-b,and may send an updated configuration to the RIS CU210(e.g., via the communication link215-b) for controlling the configurable elements220of the RIS205to reduce the interference of the incoming signal at the UE115-b.

In some other examples, the network entity105-amay configure the RIS CU210with an interference-safe configuration if the RIS205is not assisting with communications, such that the RIS205may steer an incident beam (e.g., the sidelobe230-a) towards a direction indicated by the network entity105-ato be safe. The network entity105-amay determine the interference-safe configuration based on the location of the RIS205, the location of one or more surrounding wireless devices (e.g., the location of the UE115-b), scheduled communications for one or more surrounding wireless devices, or any combination thereof. For example, a safe direction may be a direction that minimizes, or otherwise reduces, interference for surrounding wireless devices, such as for the UE115-b,caused by the RIS205. The direction240-bmay be an example of a safe direction because if the configurable elements220of the RIS205direct the incoming signal235towards the direction240-b,the UE115-bmay not experience interference from the incoming signal235.

In some cases, the network entity105-amay transmit a message to the network to request location information and frequency band usage for surrounding wireless devices, such as UEs, network entities, other network nodes, and mobile network nodes (e.g., mobile IAB nodes, UEs). The network may send a message to the surrounding network entities, or base stations, to determine whether the surrounding wireless devices are currently receiving service. The surrounding network entities may report the location information and frequency band information for the wireless devices that are receiving service to the network (e.g., to relay to the network entity105-a) or directly to the network entity105-a.The network entity105-amay determine a configuration (e.g., set of parameters for directing signals) for the configurable elements220, such that a reflection from the RIS205within the reported frequency bands is not directed to any surrounding wireless devices. Further, the network entity105-amay configure the transmission to the UE115-a,such that the sidelobe230-adoes not point towards the surrounding wireless devices.

In some examples, the network entity105-amay indicate the configuration for the direction240-bto the RIS CU210, such as in the direction indication255via the communication link215-b.The network entity105-amay transmit the direction indication255to the RIS CU210in control signaling, such as with other information (e.g., with the frequency indication260) or in a dedicated message. Thus, the RIS CU210may control the configurable elements220of the RIS205to direct an incoming signal235(e.g., from the sidelobe230-a) to a direction240-bthat the network entity105-aindicates to be interference-safe. In some examples, the network entity105-amay determine a time period, or duration, for the chosen configuration (e.g., the configuration for the direction240-b) to remain in effect, such as based on the reported location information and frequency band information from surrounding wireless devices. The network entity105-amay transmit an indication of the time period to the RIS CU210, to the surrounding wireless devices, to the network, or any combination thereof.

Similarly, the network entity105-amay report the directions of the sidelobe230-a(e.g., the direction of the incoming signal235and/or the direction240-b), the main lobe225-a,or both to the RIS CU210, to the surrounding wireless devices, to the network, or any combination thereof. The network and/or surrounding wireless devices may monitor for any overlap in communication direction with the direction of the main lobe225-a,the sidelobe230-a,or both, and may transmit a report indicating the overlap if the overlap occurs.

In some cases, the RIS205may be a PIN-diode-based RIS, which may be referred to as a binary RIS. For a binary RIS, each configurable element220may be set to one of two states (e.g., ON and OFF). For an ON state, the configurable element220may have a forward bias and current flow. For an OFF state, the configurable element220may have a reverse bias and no current flow. In some examples, the RIS205may operate using a dithered configuration, and may thus be referred to as a dithered binary RIS. For the dithered configuration, when the configurable elements220are in an OFF state (e.g., the lowest power state), the RIS205may appear as a finely broken mirror, such that an incoming signal235is scattered in many incident directions. That is, if the RIS205has the capability to operate using a dithered configuration, the RIS205may scatter an incoming signal235into a dithered signal265in multiple directions using the configurable elements220, rather than along a single direction. Dither capability or inherent dither capability can, for instance, be obtained via pre-set or pre-fabricated phase-offsets realized on the configurable elements220.

In some examples, the RIS CU210may report the capability of the RIS205to dither an incoming signal235in the capability message245. For example, the RIS CU210may report a capability of the RIS205to dither an incoming signal235for a given set of incident directions, such as a maximum ratio of reflected power and incident power over multiple reflected directions or over multiple directions deemed safe to introduce interference. Additionally, or alternatively, the RIS CU210may report a capability of the RIS205to dither an incoming signal235per operating frequency or frequency band or per polarization. The network entity105-amay indicate a reflected signal suppression condition to the RIS CU210based on interference at surrounding wireless devices, which may include a set of safe directions in the direction indication255, a set of safe frequencies in the frequency indication260, or both. The RIS CU210may determine an OFF state configuration for the configurable elements220(e.g., how many configurable elements220to use to dither the incoming signal235and in which directions or frequencies) based on an inherent dither capability of the RIS205and the signal suppression condition from the network entity105-a.

For example, the RIS CU210may determine the OFF state configuration for the configurable elements220based on a space-frequency dither via a time-varying control of the reflection coefficient of each configurable element220. In some cases, the RIS CU210may generate and select independent and identically distributed binary or quaternary or octonary valued static dither, {Γi}i=1N, for reflection coefficients, where i is a configurable element220and Γiis the reflection coefficient for the configurable element220. The reflection coefficient may be made to be time-varying (e.g., with period To), such as according to a function of time Γ(t). The RIS CU210may use a same multiplicative periodic time-varying control function, Γ(t), for each of the configurable elements220. Thus, for each configurable element, the reflection coefficient may be ΓiΓ(t).

In some other cases, the RIS CU210may RIS CU210may select an independent and identically distributed delay offset, {toi}i=1N, where i is a configurable element220and toiis the delay offset for the configurable element220that is uniformly drawn from {0, To/4, T0/2, 3To/4}. The RIS CU210may configure the RIS205to apply a delayed multiplicative time-varying control of Γ(t−toi) to each configurable element220, such that a reflection coefficient of the ithconfigurable element220is Γ(t−toi).

In some examples, the RIS CU210may configure the RIS205such that at the 0thharmonic and at any other even harmonic (e.g., frequency k/To: k even), the RIS205may not reflect a signal. At a kthodd harmonic (e.g., frequency k/To: k odd), the RIS CU210may configure a soft-off isolation of approximately X decibels (dB)+4 dB+20 log10(k), where k=1,3,5, . . . and XdB is the soft-off isolation provided by using static binary dither {Γi}i=1Nwithout time-varying control, to provide for a relatively low reflected signal power when compared with an incident signal power. For example, X may have a value of −13 for a 12 configurable element by 12 configurable element uniform planar array (UPA) RIS with 0.4λ inter-element spacing with binary valued static dither and −14.7 with quaternary valued static dither, where λ is wavelength.

FIG.3illustrates an example of a process flow300that supports equivalent off state for a RIS in accordance with one or more aspects of the present disclosure. In some examples, the process flow300may implement aspects of the wireless communications system100and the wireless communications system200. The process flow300may illustrate an example of a RIS controller, such as a RIS CU305, transmitting a capability message to a network entity105-bindicating a capability of the RIS CU305to direct signals in one or more directions for one or more frequency bands, where the RIS CU305controls configurable elements of a RIS based on the capability message. The network entity105-b,the network entity105-c,and RIS CU305may be examples of network entities105and a RIS CU210as described with reference toFIGS.1and2. Alternative examples of the following may be implemented, where some processes are performed in a different order than described or are not performed. In some cases, processes may include additional features not mentioned below, or further processes may be added.

In some examples, the RIS CU305may be referred to as a network entity. In some other examples, the network entity105-bmay perform the actions of the RIS CU305. The actions performed by the network entity105-bmay additionally, or alternatively, be performed by a controlling UE for sidelink communications.

At310and315, a network entity105-band a controller of a RIS, such as the RIS CU305, respectively, may determine an activity status of the RIS. The activity status of the RIS may depend on whether the RIS is scheduled to assist in any communications. If the RIS is not scheduled to assist in any communications, the RIS CU305may configure the equivalent OFF state of the RIS, while if the RIS is scheduled to assist in any communications, the RIS CU305may maintain an active state, or ON state, of the RIS until the communications terminate.

At320, the RIS CU305may transmit a capability message to the network entity105-bindicating a capability of one or more configurable elements (e.g., reflective elements, refractive elements) of the RIS to redirect incoming signals in one or more preconfigured directions for one or more frequency bands. The preconfigured directions may be determined by the RIS CU305, may be indicated by the network entity105-b,may depend on a functionality (e.g., design factor) of the configurable elements of the RIS, or any combination thereof.

At325, the network entity105-bmay transmit a message to one or more other network entities or surrounding wireless devices (e.g., the network entity105-c) requesting an indication of one or more frequency bands in use by the other network entities or surrounding wireless devices and location information of the network entities and/or wireless devices served by the network entities. The message may include location information of the RIS.

At330, the network entity105-cmay respond with a message indicating a frequency band of a signal that is an incoming signal to the RIS. Additionally, or alternatively, the network entity105-cmay respond with a message indicating a set of frequency bands in use at the network entity105-cand location information for one or more wireless devices served by the network entity105-c(e.g., including mobile wireless devices). In some examples, the network entity105-bmay report the frequency and location information from each surrounding wireless device to the network entity105c,and the network entity105-cmay update the location information accordingly (e.g., if any frequency band or location information has changed).

At335, the network entity105-bmay select a preconfigured direction for the RIS to direct the incoming signal to, such as based on the preconfigured direction having an interference value at surrounding wireless devices that satisfies a threshold interference value (e.g., below the threshold interference value). The network entity105-bmay select the preconfigured direction based on the location information and frequency bands in use at the network entity105-c.

In some examples, at340, the network entity105-bmay transmit the selected preconfigured direction to which the RIS CU305should direct an incoming signal based on the capability message and an activity status of the RIS (e.g., whether or not the RIS is actively assisting in communications). In some examples, the network entity105-bmay send control signaling indicating different preconfigured directions for signals on different frequency bands. For example, the network entity105-bmay instruct the RIS CU305to control the configurable elements of the RIS to direct a first signal on a first frequency band to a first direction and a second signal on a second frequency band to a second direction.

Additionally, or alternatively, at345, the network entity105-bmay determine and transmit a frequency band, or frequency range, over which the RIS CU305should direct an incoming signal based on the capability message and the activity status of the RIS. In some cases, the network entity105-bmay transmit an indication of multiple frequencies to which the one or more configurable elements of the RIS should shift at least a portion of a signal power of an incoming signal.

At350, the RIS CU305may receive an indication of a target interference value for a directed signal at the RIS. For example, the target interference value may be a maximum threshold tolerance at for one or more surrounding wireless devices. The RIS CU305may determine one or more parameters (e.g., reflective coefficients) of an OFF state for the RIS based on the target interference value and the capability of the one or more configurable elements of the RIS to direct the incoming signals in the one or more preconfigured directions for the one or more frequency bands. That is, the RIS CU305may determine on a per configurable element basis whether to configure the configurable element to direct the incoming signal, or whether a current reflection coefficient of the configurable element satisfies the target interference value.

At355, the network entity105-bmay determine a time period, or duration, over which the RIS is to direct the first signal in the first preconfigured direction.

At360, the network entity105-bmay transmit an indication of the time period to one or more other network entities or surrounding wireless devices, such as the network entity105-c.The network entity105-cmay update the network entity105-bif any location information or frequency band usage information changes during the time period, which may update the preconfigured direction.

At365, the RIS CU305may control the one or more configurable elements of the RIS to direct a signal sent using a frequency band to a preconfigured direction (e.g., the preconfigured direction indicated by the network entity105-b). The RIS CU305may control the configurable elements in accordance with the capability message and the activity status of the RIS.

For example, at370, if the RIS is capable of acting as transparent for the frequency band of the incoming signal, the RIS CU305may control the one or more configurable elements of the RIS to direct the signal in a same direction as an incoming direction of the signal. In some other examples, the RIS CU305may control the one or more configurable elements of the RIS to direct the signal in a direction that is interference-safe, such that a threshold interference value is satisfied for the directed signal. Additionally, or alternatively, the RIS may be capable of dithering an incoming signal, such that the RIS CU305may control the one or more configurable elements to direct the signal in multiple preconfigured directions in accordance with a maximum ratio of reflected power and incident power over the multiple preconfigured directions. The capability message may include an indication of the maximum ratio of reflected power and incident power over the multiple directions.

In some cases, at375, the RIS may be capable of shifting the signal power from an incoming signal to one or more frequency bands. For example, the RIS CU305may control the configurable elements of the RIS to shift at least a portion of incoming signal power to at least a subset of the frequencies indicated at345.

In some examples, the network entity105-bmay determine that a measure of interference at a UE satisfies (e.g., exceeds) a threshold interference value for a frequency band, and may transmit control signaling to the RIS CU305indicating an updated direction for the one or more configurable elements of the RIS to direct signals sent using the frequency band. The network entity105-bmay send reference signal resources (e.g., CSI-RS resources) for the frequency band and a request for the measurement of interference to the UE. Additionally, or alternatively, a network entity serving the UE may indicate the frequency band and an indication that the interference at the UE satisfies the threshold interference value for the frequency band.

FIG.4illustrates a block diagram400of a device405that supports equivalent off state for a RIS in accordance with one or more aspects of the present disclosure. The device405may be an example of aspects of a RIS controller as described herein. The device405may include a receiver410, a transmitter415, and a communications manager420. The device405may also include a processor. Each of these components may be in communication with one another (e.g., via one or more buses).

The transmitter415may provide a means for transmitting signals generated by other components of the device405. For example, the transmitter415may transmit information such as packets, user data, control information, or any combination thereof associated with various information channels (e.g., control channels, data channels, information channels related to equivalent off state for a RIS). In some examples, the transmitter415may be co-located with a receiver410in a transceiver module. The transmitter415may utilize a single antenna or a set of multiple antennas.

The communications manager420, the receiver410, the transmitter415, or various combinations thereof or various components thereof may be examples of means for performing various aspects of equivalent off state for a RIS as described herein. For example, the communications manager420, the receiver410, the transmitter415, or various combinations or components thereof may support a method for performing one or more of the functions described herein.

In some examples, the communications manager420may be configured to perform various operations (e.g., receiving, obtaining, monitoring, outputting, transmitting) using or otherwise in cooperation with the receiver410, the transmitter415, or both. For example, the communications manager420may receive information from the receiver410, send information to the transmitter415, or be integrated in combination with the receiver410, the transmitter415, or both to obtain information, output information, or perform various other operations as described herein.

The communications manager420may support wireless communication at a controller of a RIS in accordance with examples as disclosed herein. For example, the communications manager420may be configured as or otherwise support a means for transmitting a capability message including a capability of one or more configurable elements of the RIS to direct incoming signals in one or more preconfigured directions for one or more frequency bands. The communications manager420may be configured as or otherwise support a means for controlling, in accordance with the capability message and an activity status of the RIS, the one or more configurable elements of the RIS to direct a first signal associated with a first frequency band of the one or more frequency bands to a first preconfigured direction of the one or more preconfigured directions.

By including or configuring the communications manager420in accordance with examples as described herein, the device405(e.g., a processor controlling or otherwise coupled with the receiver410, the transmitter415, the communications manager420, or a combination thereof) may support techniques for a RIS controller, such as a RIS CU, to transmit a capability message to a network entity105indicating a capability of the RIS CU to direct signals in one or more directions for one or more frequency bands, where the RIS CU controls configurable elements of a RIS based on the capability message, which may provide for reduced processing, reduced power consumption, more efficient utilization of communication resources, or the like.

The transmitter515may provide a means for transmitting signals generated by other components of the device505. For example, the transmitter515may transmit information such as packets, user data, control information, or any combination thereof associated with various information channels (e.g., control channels, data channels, information channels related to equivalent off state for a RIS). In some examples, the transmitter515may be co-located with a receiver510in a transceiver module. The transmitter515may utilize a single antenna or a set of multiple antennas.

The device505, or various components thereof, may be an example of means for performing various aspects of equivalent off state for a RIS as described herein. For example, the communications manager520may include a capability component525a configurable element component530, or any combination thereof. The communications manager520may be an example of aspects of a communications manager420as described herein. In some examples, the communications manager520, or various components thereof, may be configured to perform various operations (e.g., receiving, obtaining, monitoring, outputting, transmitting) using or otherwise in cooperation with the receiver510, the transmitter515, or both. For example, the communications manager520may receive information from the receiver510, send information to the transmitter515, or be integrated in combination with the receiver510, the transmitter515, or both to obtain information, output information, or perform various other operations as described herein.

The communications manager520may support wireless communication at a controller of a RIS in accordance with examples as disclosed herein. The capability component525may be configured as or otherwise support a means for transmitting a capability message including a capability of one or more configurable elements of the RIS to direct incoming signals in one or more preconfigured directions for one or more frequency bands. The configurable element component530may be configured as or otherwise support a means for controlling, in accordance with the capability message and an activity status of the RIS, the one or more configurable elements of the RIS to direct a first signal associated with a first frequency band of the one or more frequency bands to a first preconfigured direction of the one or more preconfigured directions.

FIG.6illustrates a block diagram600of a communications manager620that supports equivalent off state for a RIS in accordance with one or more aspects of the present disclosure. The communications manager620may be an example of aspects of a communications manager420, a communications manager520, or both, as described herein. The communications manager620, or various components thereof, may be an example of means for performing various aspects of equivalent off state for a RIS as described herein. For example, the communications manager620may include a capability component625, a configurable element component630, a direction component635, a frequencies component640, an interference component645, an activity status component650, or any combination thereof. Each of these components may communicate, directly or indirectly, with one another (e.g., via one or more buses).

The communications manager620may support wireless communication at a controller of a RIS in accordance with examples as disclosed herein. The capability component625may be configured as or otherwise support a means for transmitting a capability message including a capability of one or more configurable elements of the RIS to direct incoming signals in one or more preconfigured directions for one or more frequency bands. The configurable element component630may be configured as or otherwise support a means for controlling, in accordance with the capability message and an activity status of the RIS, the one or more configurable elements of the RIS to direct a first signal associated with a first frequency band of the one or more frequency bands to a first preconfigured direction of the one or more preconfigured directions.

In some examples, the configurable element component630may be configured as or otherwise support a means for receiving control signaling indicating the first preconfigured direction, the first frequency band, or both.

In some examples, to support controlling the one or more configurable elements of the RIS, the configurable element component630may be configured as or otherwise support a means for controlling the one or more configurable elements of the RIS to direct the first signal in a same direction as an incoming direction of the first signal, where the first preconfigured direction is based on the incoming direction of the first signal.

In some examples, to support controlling the one or more configurable elements of the RIS, the direction component635may be configured as or otherwise support a means for receiving an indication of the first preconfigured direction.

In some examples, the first preconfigured direction includes a set of multiple first preconfigured directions based on the capability message indicating a maximum ratio of reflected power and incident power over the set of multiple first preconfigured directions for the first frequency band.

In some examples, to support controlling the one or more configurable elements of the RIS, the frequencies component640may be configured as or otherwise support a means for receiving an indication of a set of multiple frequencies for the one or more configurable elements of the RIS to shift at least a portion of a signal power associated with the directed first signal. In some examples, to support controlling the one or more configurable elements of the RIS, the configurable element component630may be configured as or otherwise support a means for controlling the one or more configurable elements to shift at least the portion of the signal power to at least a subset of the set of multiple frequencies.

In some examples, the direction component635may be configured as or otherwise support a means for receiving control signaling indicating a second preconfigured direction of the one or more preconfigured directions for the one or more configurable elements of the RIS to direct a second signal associated with a second frequency band of the one or more frequency bands.

In some examples, the interference component645may be configured as or otherwise support a means for receiving an indication of a target interference value corresponding to the directed first signal, where controlling the one or more configurable elements of the RIS is in accordance with the target interference value.

In some examples, the activity status component650may be configured as or otherwise support a means for determining the activity status based on whether a signal is scheduled to be directed by the RIS towards a target wireless device.

FIG.7illustrates a diagram of a system700including a device705that supports equivalent off state for a RIS in accordance with one or more aspects of the present disclosure. The device705may be an example of or include the components of a device405, a device505, or a RIS controller as described herein. The device705may include components for bi-directional voice and data communications including components for transmitting and receiving communications, such as a communications manager720, an I/O controller710, a transceiver715, an antenna725, a memory730, code735, and a processor740. These components may be in electronic communication or otherwise coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more buses (e.g., a bus745).

The I/O controller710may manage input and output signals for the device705. The I/O controller710may also manage peripherals not integrated into the device705. In some cases, the I/O controller710may represent a physical connection or port to an external peripheral. In some cases, the I/O controller710may utilize an operating system such as iOS®, ANDROID®, MS-DOS®, MS-WINDOWS®, OS/2®, UNIX®, LINUX®, or another known operating system. Additionally, or alternatively, the I/O controller710may represent or interact with a modem, a keyboard, a mouse, a touchscreen, or a similar device. In some cases, the I/O controller710may be implemented as part of a processor, such as the processor740. In some cases, a user may interact with the device705via the I/O controller710or via hardware components controlled by the I/O controller710.

In some cases, the device705may include a single antenna725. However, in some other cases, the device705may have more than one antenna725, which may be capable of concurrently transmitting or receiving multiple wireless transmissions. The transceiver715may communicate bi-directionally, via the one or more antennas725, wired, or wireless links as described herein. For example, the transceiver715may represent a wireless transceiver and may communicate bi-directionally with another wireless transceiver. The transceiver715may also include a modem to modulate the packets, to provide the modulated packets to one or more antennas725for transmission, and to demodulate packets received from the one or more antennas725. The transceiver715, or the transceiver715and one or more antennas725, may be an example of a transmitter415, a transmitter515, a receiver410, a receiver510, or any combination thereof or component thereof, as described herein.

The memory730may include RAM and ROM. The memory730may store computer-readable, computer-executable code735including instructions that, when executed by the processor740, cause the device705to perform various functions described herein. The code735may be stored in a non-transitory computer-readable medium such as system memory or another type of memory. In some cases, the code735may not be directly executable by the processor740but may cause a computer (e.g., when compiled and executed) to perform functions described herein. In some cases, the memory730may contain, among other things, a BIOS which may control basic hardware or software operation such as the interaction with peripheral components or devices.

The processor740may include an intelligent hardware device (e.g., a general-purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof). In some cases, the processor740may be configured to operate a memory array using a memory controller. In some other cases, a memory controller may be integrated into the processor740. The processor740may be configured to execute computer-readable instructions stored in a memory (e.g., the memory730) to cause the device705to perform various functions (e.g., functions or tasks supporting equivalent off state for a RIS). For example, the device705or a component of the device705may include a processor740and memory730coupled with or to the processor740, the processor740and memory730configured to perform various functions described herein.

The communications manager720may support wireless communication at a controller of a RIS in accordance with examples as disclosed herein. For example, the communications manager720may be configured as or otherwise support a means for transmitting a capability message including a capability of one or more configurable elements of the RIS to direct incoming signals in one or more preconfigured directions for one or more frequency bands. The communications manager720may be configured as or otherwise support a means for controlling, in accordance with the capability message and an activity status of the RIS, the one or more configurable elements of the RIS to direct a first signal associated with a first frequency band of the one or more frequency bands to a first preconfigured direction of the one or more preconfigured directions.

By including or configuring the communications manager720in accordance with examples as described herein, the device705may support techniques for a RIS controller, such as a RIS CU, to transmit a capability message to a network entity105indicating a capability of the RIS CU to direct signals in one or more directions for one or more frequency bands, where the RIS CU controls configurable elements of a RIS based on the capability message, which may provide for improved communication reliability, reduced latency, improved user experience related to reduced processing, reduced power consumption, more efficient utilization of communication resources, improved coordination between devices, longer battery life, improved utilization of processing capability, and the like.

In some examples, the communications manager720may be configured to perform various operations (e.g., receiving, monitoring, transmitting) using or otherwise in cooperation with the transceiver715, the one or more antennas725, or any combination thereof. Although the communications manager720is illustrated as a separate component, in some examples, one or more functions described with reference to the communications manager720may be supported by or performed by the processor740, the memory730, the code735, or any combination thereof. For example, the code735may include instructions executable by the processor740to cause the device705to perform various aspects of equivalent off state for a RIS as described herein, or the processor740and the memory730may be otherwise configured to perform or support such operations.

The communications manager820, the receiver810, the transmitter815, or various combinations thereof or various components thereof may be examples of means for performing various aspects of equivalent off state for a RIS as described herein. For example, the communications manager820, the receiver810, the transmitter815, or various combinations or components thereof may support a method for performing one or more of the functions described herein.

In some examples, the communications manager820may be configured to perform various operations (e.g., receiving, obtaining, monitoring, outputting, transmitting) using or otherwise in cooperation with the receiver810, the transmitter815, or both. For example, the communications manager820may receive information from the receiver810, send information to the transmitter815, or be integrated in combination with the receiver810, the transmitter815, or both to obtain information, output information, or perform various other operations as described herein.

The communications manager820may support wireless communication at a first network entity in accordance with examples as disclosed herein. For example, the communications manager820may be configured as or otherwise support a means for receiving a capability message including a capability of one or more configurable elements of a RIS to direct incoming signals in one or more preconfigured directions for one or more frequency bands. The communications manager820may be configured as or otherwise support a means for transmitting, in accordance with the capability message and an activity status of the RIS, first control signaling indicating a first preconfigured direction of the one or more preconfigured directions for the one or more configurable elements of the RIS to direct a first signal associated with a first frequency band of the one or more frequency bands.

By including or configuring the communications manager820in accordance with examples as described herein, the device805(e.g., a processor controlling or otherwise coupled with the receiver810, the transmitter815, the communications manager820, or a combination thereof) may support techniques for a RIS controller, such as a RIS CU, to transmit a capability message to a network entity105indicating a capability of the RIS CU to direct signals in one or more directions for one or more frequency bands, where the RIS CU controls configurable elements of a RIS based on the capability message, which may provide for reduced processing, reduced power consumption, more efficient utilization of communication resources, or the like.

The device905, or various components thereof, may be an example of means for performing various aspects of equivalent off state for a RIS as described herein. For example, the communications manager920may include a capability manager925a direction manager930, or any combination thereof. The communications manager920may be an example of aspects of a communications manager820as described herein. In some examples, the communications manager920, or various components thereof, may be configured to perform various operations (e.g., receiving, obtaining, monitoring, outputting, transmitting) using or otherwise in cooperation with the receiver910, the transmitter915, or both. For example, the communications manager920may receive information from the receiver910, send information to the transmitter915, or be integrated in combination with the receiver910, the transmitter915, or both to obtain information, output information, or perform various other operations as described herein.

The communications manager920may support wireless communication at a first network entity in accordance with examples as disclosed herein. The capability manager925may be configured as or otherwise support a means for receiving a capability message including a capability of one or more configurable elements of a RIS to direct incoming signals in one or more preconfigured directions for one or more frequency bands. The direction manager930may be configured as or otherwise support a means for transmitting, in accordance with the capability message and an activity status of the RIS, first control signaling indicating a first preconfigured direction of the one or more preconfigured directions for the one or more configurable elements of the RIS to direct a first signal associated with a first frequency band of the one or more frequency bands.

FIG.10illustrates a block diagram1000of a communications manager1020that supports equivalent off state for a RIS in accordance with one or more aspects of the present disclosure. The communications manager1020may be an example of aspects of a communications manager820, a communications manager920, or both, as described herein. The communications manager1020, or various components thereof, may be an example of means for performing various aspects of equivalent off state for a RIS as described herein. For example, the communications manager1020may include a capability manager1025, a direction manager1030, a frequency manager1035, a timing manager1040, an interference manager1045, an activity status manager1050, a location information manager1055, a reference signal manager1060, or any combination thereof. Each of these components may communicate, directly or indirectly, with one another (e.g., via one or more buses) which may include communications within a protocol layer of a protocol stack, communications associated with a logical channel of a protocol stack (e.g., between protocol layers of a protocol stack, within a device, component, or virtualized component associated with a network entity105, between devices, components, or virtualized components associated with a network entity105), or any combination thereof.

The communications manager1020may support wireless communication at a first network entity in accordance with examples as disclosed herein. The capability manager1025may be configured as or otherwise support a means for receiving a capability message including a capability of one or more configurable elements of a RIS to direct incoming signals in one or more preconfigured directions for one or more frequency bands. The direction manager1030may be configured as or otherwise support a means for transmitting, in accordance with the capability message and an activity status of the RIS, first control signaling indicating a first preconfigured direction of the one or more preconfigured directions for the one or more configurable elements of the RIS to direct a first signal associated with a first frequency band of the one or more frequency bands.

In some examples, the first control signaling indicates the first frequency band of the one or more frequency bands.

In some examples, the frequency manager1035may be configured as or otherwise support a means for transmitting, to one or more second network entities, a first message requesting an indication of the one or more frequency bands corresponding to frequency bands in use by the one or more second network entities, where the first message includes a location of the RIS. In some examples, the frequency manager1035may be configured as or otherwise support a means for receiving, in response to the first message, at least one second message indicating the first frequency band.

In some examples, the direction manager1030may be configured as or otherwise support a means for determining the first preconfigured direction is a same direction as an incoming direction of the first signal, where the capability message indicates an ability of the RIS to direct the first signal in the same direction as the incoming direction of the first signal.

In some examples, the direction manager1030may be configured as or otherwise support a means for selecting the first preconfigured direction of the one or more preconfigured directions based on the first preconfigured direction having an interference for one or more wireless devices below a threshold.

In some examples, the location information manager1055may be configured as or otherwise support a means for transmitting a message requesting location information corresponding to the one or more wireless devices and requesting an indication of respective frequency bands in use by the one or more wireless devices. In some examples, the location information manager1055may be configured as or otherwise support a means for receiving, in response to the message, the location information and the indication of the respective frequency bands, where selecting the first preconfigured direction is in accordance with the location information and the indication of the respective frequency bands.

In some examples, the location information manager1055may be configured as or otherwise support a means for transmitting, to one or more second network entities, signaling including the location information, the indication of the respective frequency bands, the first preconfigured direction, or any combination thereof. In some examples, the location information manager1055may be configured as or otherwise support a means for receiving updated location information, updated respective frequency bands, or both based on transmitting the signaling.

In some examples, the first preconfigured direction includes a set of multiple preconfigured directions based on the capability message indicating a maximum ratio of reflected power and incident power over the one or more preconfigured directions for the one or more frequency bands.

In some examples, the frequency manager1035may be configured as or otherwise support a means for transmitting an indication of a set of multiple frequencies for the one or more configurable elements of the RIS to shift at least a portion of a signal power associated with the directed first signal.

In some examples, the timing manager1040may be configured as or otherwise support a means for determining a time period over which the RIS is to direct the first signal in the first preconfigured direction. In some examples, the timing manager1040may be configured as or otherwise support a means for transmitting an indication of the time period to one or more second network entities.

In some examples, the interference manager1045may be configured as or otherwise support a means for determining that a measurement of interference at a UE associated with a second frequency band of the one or more frequency bands satisfies a threshold interference value. In some examples, the direction manager1030may be configured as or otherwise support a means for transmitting second control signaling indicating a second preconfigured direction of the one or more preconfigured directions for the one or more configurable elements of the RIS to direct a second signal associated with the second frequency band.

In some examples, the reference signal manager1060may be configured as or otherwise support a means for transmitting signaling including reference signal resources associated with the second frequency band and a request for the measurement of interference associated with the second frequency band. In some examples, the reference signal manager1060may be configured as or otherwise support a means for receiving, in response to the signaling, the measurement of interference, where determining the measurement of interference satisfies the threshold interference value is based on receiving the measurement of interference.

In some examples, the frequency manager1035may be configured as or otherwise support a means for receiving, from a second network entity, an indication of the second frequency band, where determining the measurement of interference satisfies the threshold interference value is based on receiving the indication of the second frequency band.

In some examples, the interference manager1045may be configured as or otherwise support a means for transmitting an indication of a target interference value corresponding to the directed first signal, where controlling the one or more configurable elements of the RIS is in accordance with the target interference value.

In some examples, the activity status manager1050may be configured as or otherwise support a means for determining the activity status based on whether a signal is scheduled to be directed by the RIS towards a target wireless device.

FIG.11illustrates a diagram of a system1100including a device1105that supports equivalent off state for a RIS in accordance with one or more aspects of the present disclosure. The device1105may be an example of or include the components of a device805, a device905, or a network entity105as described herein. The device1105may communicate with one or more network entities105, one or more UEs115, or any combination thereof, which may include communications over one or more wired interfaces, over one or more wireless interfaces, or any combination thereof. The device1105may include components that support outputting and obtaining communications, such as a communications manager1120, a transceiver1110, an antenna1115, a memory1125, code1130, and a processor1135. These components may be in electronic communication or otherwise coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more buses (e.g., a bus1140).

The transceiver1110may support bi-directional communications via wired links, wireless links, or both as described herein. In some examples, the transceiver1110may include a wired transceiver and may communicate bi-directionally with another wired transceiver. Additionally, or alternatively, in some examples, the transceiver1110may include a wireless transceiver and may communicate bi-directionally with another wireless transceiver. In some examples, the device1105may include one or more antennas1115, which may be capable of transmitting or receiving wireless transmissions (e.g., concurrently). The transceiver1110may also include a modem to modulate signals, to provide the modulated signals for transmission (e.g., by one or more antennas1115, by a wired transmitter), to receive modulated signals (e.g., from one or more antennas1115, from a wired receiver), and to demodulate signals. In some implementations, the transceiver1110may include one or more interfaces, such as one or more interfaces coupled with the one or more antennas1115that are configured to support various receiving or obtaining operations, or one or more interfaces coupled with the one or more antennas1115that are configured to support various transmitting or outputting operations, or a combination thereof. In some implementations, the transceiver1110may include or be configured for coupling with one or more processors or memory components that are operable to perform or support operations based on received or obtained information or signals, or to generate information or other signals for transmission or other outputting, or any combination thereof. In some implementations, the transceiver1110, or the transceiver1110and the one or more antennas1115, or the transceiver1110and the one or more antennas1115and one or more processors or memory components (for example, the processor1135, or the memory1125, or both), may be included in a chip or chip assembly that is installed in the device1105. In some examples, the transceiver may be operable to support communications via one or more communications links (e.g., a communication link125, a backhaul communication link120, a midhaul communication link162, a fronthaul communication link168).

The memory1125may include RAM and ROM. The memory1125may store computer-readable, computer-executable code1130including instructions that, when executed by the processor1135, cause the device1105to perform various functions described herein. The code1130may be stored in a non-transitory computer-readable medium such as system memory or another type of memory. In some cases, the code1130may not be directly executable by the processor1135but may cause a computer (e.g., when compiled and executed) to perform functions described herein. In some cases, the memory1125may contain, among other things, a BIOS which may control basic hardware or software operation such as the interaction with peripheral components or devices.

The processor1135may include an intelligent hardware device (e.g., a general-purpose processor, a DSP, an ASIC, a CPU, an FPGA, a microcontroller, a programmable logic device, discrete gate or transistor logic, a discrete hardware component, or any combination thereof). In some cases, the processor1135may be configured to operate a memory array using a memory controller. In some other cases, a memory controller may be integrated into the processor1135. The processor1135may be configured to execute computer-readable instructions stored in a memory (e.g., the memory1125) to cause the device1105to perform various functions (e.g., functions or tasks supporting equivalent off state for a RIS). For example, the device1105or a component of the device1105may include a processor1135and memory1125coupled with the processor1135, the processor1135and memory1125configured to perform various functions described herein. The processor1135may be an example of a cloud-computing platform (e.g., one or more physical nodes and supporting software such as operating systems, virtual machines, or container instances) that may host the functions (e.g., by executing code1130) to perform the functions of the device1105. The processor1135may be any one or more suitable processors capable of executing scripts or instructions of one or more software programs stored in the device1105(such as within the memory1125). In some implementations, the processor1135may be a component of a processing system. A processing system may generally refer to a system or series of machines or components that receives inputs and processes the inputs to produce a set of outputs (which may be passed to other systems or components of, for example, the device1105). For example, a processing system of the device1105may refer to a system including the various other components or subcomponents of the device1105, such as the processor1135, or the transceiver1110, or the communications manager1120, or other components or combinations of components of the device1105. The processing system of the device1105may interface with other components of the device1105, and may process information received from other components (such as inputs or signals) or output information to other components. For example, a chip or modem of the device1105may include a processing system and one or more interfaces to output information, or to obtain information, or both. The one or more interfaces may be implemented as or otherwise include a first interface configured to output information and a second interface configured to obtain information, or a same interface configured to output information and to obtain information, among other implementations. In some implementations, the one or more interfaces may refer to an interface between the processing system of the chip or modem and a transmitter, such that the device1105may transmit information output from the chip or modem. Additionally, or alternatively, in some implementations, the one or more interfaces may refer to an interface between the processing system of the chip or modem and a receiver, such that the device1105may obtain information or signal inputs, and the information may be passed to the processing system. A person having ordinary skill in the art will readily recognize that a first interface also may obtain information or signal inputs, and a second interface also may output information or signal outputs.

In some examples, a bus1140may support communications of (e.g., within) a protocol layer of a protocol stack. In some examples, a bus1140may support communications associated with a logical channel of a protocol stack (e.g., between protocol layers of a protocol stack), which may include communications performed within a component of the device1105, or between different components of the device1105that may be co-located or located in different locations (e.g., where the device1105may refer to a system in which one or more of the communications manager1120, the transceiver1110, the memory1125, the code1130, and the processor1135may be located in one of the different components or divided between different components).

The communications manager1120may support wireless communication at a first network entity in accordance with examples as disclosed herein. For example, the communications manager1120may be configured as or otherwise support a means for receiving a capability message including a capability of one or more configurable elements of a RIS to direct incoming signals in one or more preconfigured directions for one or more frequency bands. The communications manager1120may be configured as or otherwise support a means for transmitting, in accordance with the capability message and an activity status of the RIS, first control signaling indicating a first preconfigured direction of the one or more preconfigured directions for the one or more configurable elements of the RIS to direct a first signal associated with a first frequency band of the one or more frequency bands.

By including or configuring the communications manager1120in accordance with examples as described herein, the device1105may support techniques for a RIS controller, such as a RIS CU, to transmit a capability message to a network entity105indicating a capability of the RIS CU to direct signals in one or more directions for one or more frequency bands, where the RIS CU controls configurable elements of a RIS based on the capability message, which may provide for improved communication reliability, reduced latency, improved user experience related to reduced processing, reduced power consumption, more efficient utilization of communication resources, improved coordination between devices, longer battery life, improved utilization of processing capability, and the like.

In some examples, the communications manager1120may be configured to perform various operations (e.g., receiving, obtaining, monitoring, outputting, transmitting) using or otherwise in cooperation with the transceiver1110, the one or more antennas1115(e.g., where applicable), or any combination thereof. Although the communications manager1120is illustrated as a separate component, in some examples, one or more functions described with reference to the communications manager1120may be supported by or performed by the transceiver1110, the processor1135, the memory1125, the code1130, or any combination thereof. For example, the code1130may include instructions executable by the processor1135to cause the device1105to perform various aspects of equivalent off state for a RIS as described herein, or the processor1135and the memory1125may be otherwise configured to perform or support such operations.

FIG.12illustrates a flowchart showing a method1200that supports equivalent off state for a RIS in accordance with one or more aspects of the present disclosure. The operations of the method1200may be implemented by a RIS controller or its components as described herein. For example, the operations of the method1200may be performed by a RIS controller as described with reference toFIGS.1through7. In some examples, a RIS controller may execute a set of instructions to control the functional elements of the RIS controller to perform the described functions. Additionally, or alternatively, the RIS controller may perform aspects of the described functions using special-purpose hardware.

At1205, the method may include transmitting a capability message including a capability of one or more configurable elements of the RIS to direct incoming signals in one or more preconfigured directions for one or more frequency bands. The operations of1205may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of1205may be performed by a capability component625as described with reference toFIG.6.

At1210, the method may include controlling, in accordance with the capability message and an activity status of the RIS, the one or more configurable elements of the RIS to direct a first signal associated with a first frequency band of the one or more frequency bands to a first preconfigured direction of the one or more preconfigured directions. The operations of1210may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of1210may be performed by a configurable element component630as described with reference toFIG.6.

FIG.13illustrates a flowchart showing a method1300that supports equivalent off state for a RIS in accordance with one or more aspects of the present disclosure. The operations of the method1300may be implemented by a RIS controller or its components as described herein. For example, the operations of the method1300may be performed by a RIS controller as described with reference toFIGS.1through7. In some examples, a RIS controller may execute a set of instructions to control the functional elements of the RIS controller to perform the described functions. Additionally, or alternatively, the RIS controller may perform aspects of the described functions using special-purpose hardware.

At1305, the method may include transmitting a capability message including a capability of one or more configurable elements of the RIS to direct incoming signals in one or more preconfigured directions for one or more frequency bands. The operations of1305may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of1305may be performed by a capability component625as described with reference toFIG.6.

At1310, the method may include receiving control signaling indicating a first preconfigured direction, a first frequency band, or both. The operations of1310may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of1310may be performed by a configurable element component630as described with reference toFIG.6.

At1315, the method may include controlling, in accordance with the capability message and an activity status of the RIS, the one or more configurable elements of the RIS to direct a first signal associated with the first frequency band of the one or more frequency bands to the first preconfigured direction of the one or more preconfigured directions. The operations of1315may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of1315may be performed by a configurable element component630as described with reference toFIG.6.

FIG.14illustrates a flowchart showing a method1400that supports equivalent off state for a RIS in accordance with one or more aspects of the present disclosure. The operations of the method1400may be implemented by a RIS controller or its components as described herein. For example, the operations of the method1400may be performed by a RIS controller as described with reference toFIGS.1through7. In some examples, a RIS controller may execute a set of instructions to control the functional elements of the RIS controller to perform the described functions. Additionally, or alternatively, the RIS controller may perform aspects of the described functions using special-purpose hardware.

At1405, the method may include transmitting a capability message including a capability of one or more configurable elements of the RIS to direct incoming signals in one or more preconfigured directions for one or more frequency bands. The operations of1405may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of1405may be performed by a capability component625as described with reference toFIG.6.

At1410, the method may include controlling, in accordance with the capability message and an activity status of the RIS, the one or more configurable elements of the RIS to direct a first signal associated with a first frequency band of the one or more frequency bands to a first preconfigured direction of the one or more preconfigured directions. The operations of1410may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of1410may be performed by a configurable element component630as described with reference toFIG.6.

At1415, the method may include controlling the one or more configurable elements of the RIS to direct the first signal in a same direction as an incoming direction of the first signal, where the first preconfigured direction is based on the incoming direction of the first signal. The operations of1415may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of1415may be performed by a configurable element component630as described with reference toFIG.6.

FIG.15illustrates a flowchart showing a method1500that supports equivalent off state for a RIS in accordance with one or more aspects of the present disclosure. The operations of the method1500may be implemented by a network entity or its components as described herein. For example, the operations of the method1500may be performed by a network entity as described with reference toFIGS.1through3and8through11. In some examples, a network entity may execute a set of instructions to control the functional elements of the network entity to perform the described functions. Additionally, or alternatively, the network entity may perform aspects of the described functions using special-purpose hardware.

At1505, the method may include receiving a capability message including a capability of one or more configurable elements of a RIS to direct incoming signals in one or more preconfigured directions for one or more frequency bands. The operations of1505may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of1505may be performed by a capability manager1025as described with reference toFIG.10.

At1510, the method may include transmitting, in accordance with the capability message and an activity status of the RIS, first control signaling indicating a first preconfigured direction of the one or more preconfigured directions for the one or more configurable elements of the RIS to direct a first signal associated with a first frequency band of the one or more frequency bands. The operations of1510may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of1510may be performed by a direction manager1030as described with reference toFIG.10.

FIG.16illustrates a flowchart showing a method1600that supports equivalent off state for a RIS in accordance with one or more aspects of the present disclosure. The operations of the method1600may be implemented by a network entity or its components as described herein. For example, the operations of the method1600may be performed by a network entity as described with reference toFIGS.1through3and8through11. In some examples, a network entity may execute a set of instructions to control the functional elements of the network entity to perform the described functions. Additionally, or alternatively, the network entity may perform aspects of the described functions using special-purpose hardware.

At1605, the method may include receiving a capability message including a capability of one or more configurable elements of a RIS to direct incoming signals in one or more preconfigured directions for one or more frequency bands. The operations of1605may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of1605may be performed by a capability manager1025as described with reference toFIG.10.

At1610, the method may include determining the first preconfigured direction is a same direction as an incoming direction of the first signal, where the capability message indicates an ability of the RIS to direct the first signal in the same direction as the incoming direction of the first signal. The operations of1610may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of1610may be performed by a direction manager1030as described with reference toFIG.10.

At1615, the method may include transmitting, in accordance with the capability message and an activity status of the RIS, first control signaling indicating a first preconfigured direction of the one or more preconfigured directions for the one or more configurable elements of the RIS to direct a first signal associated with a first frequency band of the one or more frequency bands. The operations of1615may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of1615may be performed by a direction manager1030as described with reference toFIG.10.

The following provides an overview of aspects of the present disclosure:Aspect 1: A method for wireless communication at a controller of a reconfigurable intelligent surface (RIS), comprising: transmitting a capability message comprising a capability of one or more configurable elements of the RIS to direct incoming signals in one or more preconfigured directions for one or more frequency bands; and controlling, in accordance with the capability message and an activity status of the RIS, the one or more configurable elements of the RIS to direct a first signal associated with a first frequency band of the one or more frequency bands to a first preconfigured direction of the one or more preconfigured directions.Aspect 2: The method of aspect 1, further comprising: receiving control signaling indicating the first preconfigured direction, the first frequency band, or both.Aspect 3: The method of any of aspects 1 through 2, wherein controlling the one or more configurable elements of the RIS further comprises: controlling the one or more configurable elements of the RIS to direct the first signal in a same direction as an incoming direction of the first signal, wherein the first preconfigured direction is based at least in part on the incoming direction of the first signal.Aspect 4: The method of any of aspects 1 through 3, wherein controlling the one or more configurable elements of the RIS further comprises: receiving an indication of the first preconfigured direction.Aspect 5: The method of any of aspects 1 through 4, wherein the first preconfigured direction comprises a plurality of first preconfigured directions based at least in part on the capability message indicating a maximum ratio of reflected power and incident power over the plurality of first preconfigured directions for the first frequency band.Aspect 6: The method of any of aspects 1 through 5, wherein controlling the one or more configurable elements of the RIS further comprises: receiving an indication of a plurality of frequencies for the one or more configurable elements of the RIS to shift at least a portion of a signal power associated with the directed first signal; and controlling the one or more configurable elements to shift at least the portion of the signal power to at least a subset of the plurality of frequencies.Aspect 7: The method of any of aspects 1 through 6, further comprising: receiving control signaling indicating a second preconfigured direction of the one or more preconfigured directions for the one or more configurable elements of the RIS to direct a second signal associated with a second frequency band of the one or more frequency bands.Aspect 8: The method of any of aspects 1 through 7, further comprising: receiving an indication of a target interference value corresponding to the directed first signal; and determining the activity status based at least in part on the target interference value and the capability of the one or more configurable elements of the RIS to direct the incoming signals in the one or more preconfigured directions for the one or more frequency bands.Aspect 9: The method of any of aspects 1 through 8, further comprising: determining the activity status based at least in part on whether a signal is scheduled to be directed by the RIS towards a target wireless device.Aspect 10: A method for wireless communication at a first network entity, comprising: receiving a capability message comprising a capability of one or more configurable elements of a reconfigurable intelligent surface (RIS) to direct incoming signals in one or more preconfigured directions for one or more frequency bands; and transmitting, in accordance with the capability message and an activity status of the RIS, first control signaling indicating a first preconfigured direction of the one or more preconfigured directions for the one or more configurable elements of the RIS to direct a first signal associated with a first frequency band of the one or more frequency bands.Aspect 11: The method of aspect 10, wherein the first control signaling indicates the first frequency band of the one or more frequency bands.Aspect 12: The method of aspect 11, further comprising: transmitting, to one or more second network entities, a first message requesting an indication of the one or more frequency bands corresponding to frequency bands in use by the one or more second network entities, wherein the first message comprises a location of the RIS; and receiving, in response to the first message, at least one second message indicating the first frequency band.Aspect 13: The method of any of aspects 10 through 12, further comprising: determining the first preconfigured direction is a same direction as an incoming direction of the first signal, wherein the capability message indicates an ability of the RIS to direct the first signal in the same direction as the incoming direction of the first signal.Aspect 14: The method of any of aspects 10 through 13, further comprising: selecting the first preconfigured direction of the one or more preconfigured directions based at least in part on the first preconfigured direction having an interference for one or more wireless devices below a threshold.Aspect 15: The method of aspect 14, further comprising: transmitting a message requesting location information corresponding to the one or more wireless devices and requesting an indication of respective frequency bands in use by the one or more wireless devices; and receiving, in response to the message, the location information and the indication of the respective frequency bands, wherein selecting the first preconfigured direction is in accordance with the location information and the indication of the respective frequency bands.Aspect 16: The method of aspect 15, further comprising: transmitting, to one or more second network entities, signaling comprising the location information, the indication of the respective frequency bands, the first preconfigured direction, or any combination thereof; and receiving updated location information based at least in part on transmitting the signaling.Aspect 17: The method of any of aspects 10 through 16, wherein the first preconfigured direction comprises a plurality of preconfigured directions based at least in part on the capability message indicating a maximum ratio of reflected power and incident power over the one or more preconfigured directions for the one or more frequency bands.Aspect 18: The method of any of aspects 10 through 17, further comprising: transmitting an indication of a plurality of frequencies for the one or more configurable elements of the RIS to shift at least a portion of a signal power associated with the directed first signal.Aspect 19: The method of any of aspects 10 through 18, further comprising: determining a time period over which the RIS is to direct the first signal in the first preconfigured direction; and transmitting an indication of the time period to one or more second network entities.Aspect 20: The method of any of aspects 10 through 19, further comprising: determining that a measurement of interference at a UE associated with a second frequency band of the one or more frequency bands satisfies a threshold interference value; and transmitting second control signaling indicating a second preconfigured direction of the one or more preconfigured directions for the one or more configurable elements of the RIS to direct a second signal associated with the second frequency band.Aspect 21: The method of aspect 20, further comprising: transmitting signaling comprising reference signal resources associated with the second frequency band and a request for the measurement of interference associated with the second frequency band; and receiving, in response to the signaling, the measurement of interference, wherein determining the measurement of interference satisfies the threshold interference value is based at least in part on receiving the measurement of interference.Aspect 22: The method of any of aspects 20 through 21, further comprising: receiving, from a second network entity, an indication of the second frequency band, wherein determining the measurement of interference satisfies the threshold interference value is based at least in part on receiving the indication of the second frequency band.Aspect 23: The method of any of aspects 10 through 22, further comprising: transmitting an indication of a target interference value corresponding to the directed first signal.Aspect 24: The method of any of aspects 10 through 23, further comprising: determining the activity status based at least in part on whether a signal is scheduled to be directed by the RIS towards a target wireless device.Aspect 25: An apparatus for wireless communication at a controller of a reconfigurable intelligent surface (RIS), comprising a processor; memory coupled with the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform a method of any of aspects 1 through 9.Aspect 26: An apparatus for wireless communication at a controller of a reconfigurable intelligent surface (RIS), comprising at least one means for performing a method of any of aspects 1 through 9.Aspect 27: A non-transitory computer-readable medium storing code for wireless communication at a controller of a reconfigurable intelligent surface (RIS), the code comprising instructions executable by a processor to perform a method of any of aspects 1 through 9.Aspect 28: An apparatus for wireless communication at a first network entity, comprising a processor; memory coupled with the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform a method of any of aspects 10 through 24.Aspect 29: An apparatus for wireless communication at a first network entity, comprising at least one means for performing a method of any of aspects 10 through 24.Aspect 30: A non-transitory computer-readable medium storing code for wireless communication at a first network entity, the code comprising instructions executable by a processor to perform a method of any of aspects 10 through 24.