Methods and apparatus for using a first number of antennas at one base station, e.g., at a first CBSD, in combination with a second, e.g., lesser number of antennas at another base station to provide different wireless terminals communications channels with different channel conditions are described. A ‘relay mode’ of operation at the second base station facilitates communication of data from the first base station. In this way the second base station is used to relay data sent from the first base station while the UE perceives the data as having been sent over the air by the first base station. The channels from the first and second base stations operate together providing a composite channel that will have different channel conditions than would be possible using simply the antennas of the first base station. Differences in channels to different UEs facilitates transmission scheduling at the first base station.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a parent node may determine that a set of resources is not available for the parent node for communication with a child node of the parent node. The parent node may provide an availability indicator to the child node based at least in part on determining that the set of resources is not available for the parent node for communication with the child node. The availability indicator may indicate the set of resources as available for the child node. Numerous other aspects are provided.

A base station distributed unit (BS-DU) of a base station receives at least one configuration message from a base station central unit (BS-CU) of the base station. The at least one configuration message comprises bearer configuration parameters of at least one bearer for a wireless device. The at least one bearer is configured between the wireless device and the BS-CU through the BS-DU. The BS-DU communicates packets via the at least one bearer. The BS-DU determines a failure of a link between the BS-DU and the BS-CU and transmits, to the wireless device, backhaul link information indicating the failure of the link.

Provided are a node operation method in a wireless communication system and an apparatus using the method. The method includes receiving first allocation information related to communication with a parent node and second allocation information related to communication with a child node and performing communication with the parent node or child node based on the first and the second allocation information. The first allocation information informs of resource type of a specific resource as one of three, and the second allocation information informs of resource type of the specific resource as one of seven. When the second allocation information informs the specific resource as a hard resource which can be always used for communication with the child node, the specific resource is used for communication with the child node irrespective of the first allocation information.

A wireless communication system including, a primary transmitting station and a primary receiving station which are being in communication, a secondary transmitting station and one or more secondary receiving stations which use the identical frequency that are used in the above wireless environment, the one or more secondary receiving stations including a secondary receiving station serving as a destination, the secondary receiving station serving as the destination receiving a transmitted signal from the secondary transmitting station, the wireless communication system including a plurality of relay stations located between the secondary transmitting station and the one or more secondary receiving stations, wherein the secondary transmitting station includes a relay station selection unit configured to select at least one relay station that relays the transmitted signal from among the plurality of relay stations, add information for turning on the at least one selected relay station to the transmitted signal, and transmit the transmitted signal, the at least one selected relay station is configured to be turned on in accordance with the information of the transmitted signal to perform a non-regenerative relay of the transmitted signal, and the secondary receiving station serving as the destination is configured to receive the transmitted signal relayed via the at least one relay station that is turned on.

A method for frequency domain resource processing, a method for frequency domain resource configuration, and a related device are provided. The method for frequency domain resource processing includes: obtaining frequency domain configuration information, where the frequency domain configuration information includes at least one of configuration information of a guard band or configuration information of a frequency domain resource for a distributed unit (DU) of an Integrated Access Backhaul (IAB) node; and performing information transmission based on the frequency domain configuration information.

A base station distributed unit (BS-DU) receives, from a base station central unit (BS-CU), at least one configuration message comprising bearer configuration parameters of at least one bearer for a wireless device, wherein the at least one bearer is configured between the wireless device and the BS-CU through the BS-DU. The BS-DU communicates, with the wireless device and via the at least one bearer, a first adaptation layer packet, wherein a first header of the first adaptation layer packet comprises a route identifier indicating a route. The BS-DU determines a failure of a link between the BS-DU and the BS-CU and transmits, to the wireless device, backhaul link information indicating the failure of the link, wherein a second header of a second adaptation layer packet comprises the backhaul link information indicating the failure of the link.

A system and method for optimizing the end-to-end latency transfer rates over an air interface employing a Multi-hop Relays (MHR). The present system and method provides fast signaling process when no Downlink/Uplink Bandwidth allocation changes are employed, thereby bypassing PHY/MAC/IP Stack processing. The solution is intended for the new generation of 5G millimeter band multi-hop relays.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a repeater may transmit, via a first interface, information associated with a capability of the repeater to provide a wideband signal on a second interface. The repeater may receive via the first interface, a configuration for transmitting the wideband signal on the second interface, and may transmit the wideband signal on the second interface based at least in part on the configuration. Numerous other aspects are provided.

Provided are a connection control method and device based on integrated access and backhaul (IAB) using 5G NR wireless communication technology. The method of a relay node for processing an RRC message may include: setting a donor base station with a signaling radio bearer or a higher layer protocol connection; receiving an RRC message transmitted from a terminal; and transmitting the RRC message to the donor base station or another relay node using the signaling radio bearer or a higher layer protocol.