Method and apparatus for null-forming at bidirectional smart repeaters. The apparatus transmits, to a repeater, a repeater configuration. The repeater configuration configures the repeater to beam shape at least one beam of the repeater to suppress at least one side lobe of the at least one beam. The apparatus communicates with the repeater based on the repeater configuration. The apparatus receives, from the repeater, information related to an existing codebook of the repeater and associated beam forming capabilities of the repeater. The apparatus receives, from the repeater, information related to a null-forming codebook configured at the repeater.

A method for informing a relay node when to receive data. The method includes the relay node being informed of a fixed point in a subframe of data when an access node will begin transmitting relevant data over a physical downlink shared channel. The method further includes the relay node beginning to receive data at approximately the fixed point.

Provided is a method for performing relay forwarding on integrated access and backhaul (IAB) links. The method includes receiving, by a first IAB node, a data packet; and transmitting, by the first IAB node, the data packet to an IAB donor. Further provided are an information acquisition method, an IAB node, an IAB donor node and a storage medium.

Certain aspects of the present disclosure provide techniques for system acquisition in sidelink relay scenarios. An example method for adaptive paging by a relay node generally includes connecting, via a sidelink, to a remote user equipment (UE) while the relay node is also connected to a network entity, receiving, from the network entity, system information block (SIB) information, and sending the SIB information to at least the remote UE.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, an integrated access and backhaul (IAB)-donor central unit (CU) may trigger connectivity between a distributed unit (DU) of a first network node and the IAB-donor CU, wherein the first network node comprises an IAB-node. The IAB may instantiate connectivity between a mobile terminal (MT) of the first network node and the IAB-donor CU after instantiation of the connectivity between the DU of the first network node and the IAB-donor CU. The IAB may transmit a communication to a second network node via the first network node. Numerous other aspects are described.

In accordance with example embodiments of the invention there is at least an apparatus and a method to perform determining, by a network node, a repeater, and/or a user equipment of a communication network, a configuration message comprising an identified frequency range of at least one of a first communication link between a donor and a repeater or a second communication link between a user equipment and the repeater for a repeat transmission in the communication network; and communicating with at least one of the repeater or the user equipment an indication of the configuration message for configuration at the repeater and the user equipment of the at least one set of sub-carriers mapped with the at least one physical channel for the repeat transmission, wherein the configuration message is using at least a different frequency offset of supported radio frequency resources to map at least one set of sub-carriers of the at least one of the first communication link and the second communication link with at least one physical channel in supported radio frequency resources of at least one of the first communication link or the second communication link, and mapping comprises performing spectral modification of resources to cause at least one of: sub-carrier shifting, wherein a sub-carrier is selected for the repeater to frequency shift to another part of the spectrum, based on instructions by the network node, sub-carrier inversion, wherein sub-carriers' indices are inversed, based on an on/off decision by the network node, and wherein the spectral modification is causing the at least one set of sub-carriers with the at least one physical channel to have different spectral properties as compared to a target set of sub-carriers associated with at least one of the user equipment or the repeater.

A repeater system includes a first RF repeater device arranged in a first topology of a network of RF repeater devices, to communicate with one or more second RF repeater devices in the network of RF repeater devices to service one or more source nodes and destination nodes in a first wireless network. The first RF repeater device detects a change in at least one of a network condition in the first wireless network, networks configuration, or traffic demand. Based on the detected change, the first RF repeater device is controlled to be assigned to at least one of the first wireless network, a second wireless network, or be shared between the first wireless network and the second wireless network, where the second wireless network is one of fully overlapping the first wireless network, partially overlapping the first wireless network, or is an adjacent cell of the first wireless network.

An embodiment relates to an operation method of a relay user equipment (UE) related to a sidelink relay in a wireless communication system, the method comprising: receiving, by a relay UE, a system information-related request from a remote UE; and transmitting, by the relay UE, system information to the remote UE, wherein the system information is obtained by the relay UE from a base station on the basis of the system information-related request.

This application provides a data processing method and device, to implement bearer mapping of control plane signaling of user equipment on each interface. An IAB system includes a centralized unit CU, a distributed unit DU, a first IAB node, and a second IAB node. The method includes: generating, by the CU, a downlink F1AP message, where a message included in the downlink F1AP message is one or a combination of the following: an F1AP message of a terminal device, an F1AP message of the first IAB node, and an RRC message of the second IAB node; and sending, by the CU, the downlink F1AP message to the DU, and indicating that a message type of the message included in the downlink F1AP message is one of the following: an RRC message type, an F1AP message type, or an RRC message type and an F1AP message type.

An operating method of a node in a wireless communication system, and a device using the method are provided. The method transmits a link instability signal notifying a child node of the instability of a link if the link with a parent node is unstable, monitors, during a connection recovery time, whether a link recovery signal is received from the parent node, and transmits, to the child node, a handover trigger signal if the link recovery signal has not been received within the connection recovery time.