Aspects of the present disclosure include methods, apparatuses, and computer readable media for receiving, via a plurality of input ports, one or more input signals carrying information via one or more input ports of the plurality of input ports, transforming, via a mapping module each of the one or more input signals into two or more output signals carrying the information, amplifying the two or more output signals, and transmitting, coherently, the amplified two or more output signals in a multiple-in multiple-out (MIMO) network.

A millimeter-wave repeater may be provided to cover a radio shaded area, in a system for the millimeter-wave repeater. The millimeter-wave repeater may provide a service by changing a signal of a millimeter-wave band to an intermediate frequency band, and then changing the signal to the millimeter-wave band again.

A communication terminal capable of at least millimeter-wave communication and microwave communication is provided. The communication terminal includes a repeater that relays communication between a first communication terminal and a second communication terminal by using millimeter-wave communication. Such a communication terminal is capable of maintaining good millimeter-wave communication between terminals.

According to one embodiment, an electronic apparatus includes a transmitter circuitry, a receiver circuitry, and a processing circuitry. The transmitter circuitry transmits a first data frame including first data to a destination apparatus. The receiver circuitry receives first acknowledgment information indicative of a reception state of the first data included in the first data frame. The receiver circuitry receives second acknowledgment information indicative of a reception state of the first data included in a second data frame. The second data frame is transmitted from another electronic apparatus to the destination apparatus. The processing circuitry determines whether the first data frame is retransmitted, based on at least one of the first and second acknowledgment information.

A relay control method according to the first aspect is a method used in a mobile communication system in which one or a plurality of relay nodes relay data from user equipment to a base station. The relay control method includes: predicting, by a first lower node, an estimate transmission data amount being an estimate amount of data to be transmitted within a certain period from the first lower node to a first upper node being an upper node of the first lower node; and transmitting, by the first lower node, data amount information indicating the estimate transmission data amount to the first upper node.

An operation method of a relay terminal in a communication system may comprise: calculating a first available resource amount of a communication service through a base station; calculating a required resource amount for the relay terminal; generating a relay terminal identifier reflecting the first available resource amount and the required resource amount, and providing the relay terminal identifier to a remote terminal; and providing a relay service to the remote terminal when a request for the relay service is received from the remote terminal.

Aspects described herein relate to determining, by a node, to establish a first backhaul connection with a first upstream node for access link communications with a first downstream node, determining, by the node, to establish a second backhaul connection with a second upstream node for access link communications with a second downstream node, establishing the first backhaul connection with the first upstream node based on a first transmit/receive beam pair, and establishing the second backhaul connection with the second upstream node based on a second transmit/receive beam pair and while the first backhaul connection is established with the first upstream node.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a repeater may determine a forwarding direction for a set of resources based at least in part on time division duplexing (TDD) information associated with the set of resources. The forwarding direction may indicate a direction associated with forwarding signals carried in the set of resources. The repeater may receive a signal in the set of resources, the signal being provided by a first wireless communication device. The repeater may selectively forward the signal to a second wireless communication device based at least in part on the determined forwarding direction. Numerous other aspects are provided.

Mapping Information for Integrated Access and BackhaulEmbodiments described herein relate to methods and apparatus for providing IAB mapping information. A method performed by CU-CP of a base station configured as a donor base station for one or more IAB nodes comprises transmitting a first message to setup or modify a first bearer context for a first bearer in a central unit user plane, CU-UP, of the base station, wherein the first message comprises an information element indicating mapping information for use in determining a mapping of the first bearer to a backhaul radio link control, BH RLC, channel.

A configuration for self interference and cross link interference (CLI) management of bidirectional smart repeaters. The apparatus transmits, to a first wireless device, a measurement configuration to measure interference. The measurement configuration comprising a first measurement occasion and a second measurement occasion. The apparatus receives, from the first wireless device, a report of measured interference at the first wireless device based on the measurement configuration. Part of the measured interference under the first measurement occasion is based at least on transmissions forwarded by a relay node.