Provided is an apparatus and method for wideband short-range wireless communication using a directional antenna in a millimeter wave band, and the method for wideband short-range wireless communication according to an embodiment may determine a first time interval and a second time interval for a cooperated data frame transfer based on a packet transmission time at each transmission from a source node to a destination node, transmit a frame to a relay node through an antenna pattern directed towards the relay node at a start point of the first time interval, and transmit the frame to the destination node through an antenna pattern directed towards the destination node after a predetermined period of time from a start point of the second time interval.

A system for backscatter-based cooperative communication in a wireless-powered heterogeneous network includes a low-power access point, a hybrid access point, and Internet of Things (IoT) devices. The low-power access point transmits an unmodulated carrier. The hybrid access point is in communication with a primary device using a signal. Internet of Things (IoT) devices harvest energy of the unmodulated carrier and the signal, and each of the IoT devices sequentially transmits information to the hybrid access point through a bistatic backscatter communication-based cooperation mode or non-cooperation mode using the harvested energy.

In some aspects, a base station may transmit a configuration that indicates a resource set to be used by a millimeter wave repeater for beam management, wherein the resource set includes a first set of resources to be used by the millimeter wave repeater to receive one or more reference signals from a first node and a second set of resources to be used by the millimeter wave repeater to relay the one or more reference signals to a second node. The base station may identify a first beam pair and a second beam pair based at least in part on the one or more reference signals received and/or relayed in accordance with the configuration, wherein the first beam pair is between the millimeter wave repeater and the first node and the second beam pair is between the millimeter wave repeater and the second node. Numerous other aspects are provided.

A relay device operable to relay emergency information to a plurality of mobile terminals. The device includes: a receiver configured in use to receive a broadcast signal, the broadcast signal being in a first format and containing the emergency information; a transmitter configured in use to connect to the plurality of mobile terminals using a communication channel; and a processor configured in use to provide the emergency information received in the broadcast signal to the plurality of mobile terminals in a second format using the transmitter, wherein the second format is different to the first format.

Provided is an apparatus and method for wideband short-range wireless communication using a directional antenna in a millimeter wave band, and the method for wideband short-range wireless communication according to an embodiment may determine a first time interval and a second time interval for a cooperated data frame transfer based on a packet transmission time at each transmission from a source node to a destination node, transmit a frame to a relay node through an antenna pattern directed towards the relay node at a start point of the first time interval, and transmit the frame to the destination node through an antenna pattern directed towards the destination node after a predetermined period of time from a start point of the second time interval.

A data transmission method of a source node in a cooperative communication system includes: performing a beamforming to a relay node; transmitting data to the relay node; performing a beamforming to a destination node; and transmitting data to the destination node.

The described technology is generally directed towards dynamic resource coordination that supports multi-hop based relaying for integrated access and backhaul (IAB) in New Radio (5G). Described is a technology in which an IAB node and a serving parent node use wireless signaling to dynamically adapt downlink and uplink resources used for access and backhaul links. An IAB node receives scheduling data from a parent node, configures a frame structure comprising mobile termination function subframes and distributed unit component subframes, and communicates data based on the frame structure. The parent node explicitly or implicitly indicates that a portion of the scheduling data is adaptable, e.g., sends a dynamic frame structure coordination message. In response, the IAB node can adapt the frame structure into a modified frame structure and can communicate further data based on the modified frame structure.

Certain aspects of the present disclosure relate to techniques for managing resources for cooperative uplink transmission. A base station may determine different groups for a plurality of user equipments (UEs) participating in cooperative uplink transmission, and transmit mode configurations indicating whether or not UEs in each group are configured to transmit data as a data source or to relay data received from another UE configured to transmit data as a data source. A UE may participate, with one or more other UEs, in cooperative uplink transmission to the base station, wherein each UE belongs to a group. The UE may determine, for a transmission time interval (TTI), at least one operation to perform for the cooperative uplink transmission based, at least in part, on a group number of a group to which the UE belongs and an index of the TTI.

Provided are a method and a Base Station (BS) for transmitting a control channel and a method and a User Equipment (UE) for receiving a control channel in a wireless communication system. The BS includes: a transceiver; and at least one processor configured to control the transceiver to receive Beam State Information (BSI) from the UE through at least one first beam, identify a second beam, based on the BSI, and control the transceiver to transmit a first BSI request to the UE through the second beam, identify a third beam, based on information on the at least one first beam, and determine whether control the transceiver to transmit the control channel to the UE through the third beam.

A communication system, a base station and a communication control method are provided, which are capable of cooperatively transmitting data from a plurality of base stations to a plurality of communication terminals using a same radio resource. A first base station acquires a value of an interference suppression parameter that is applied to a transmission signal from the first base station so as to suppress interference from a second base station in a first communication terminal, when the first communication terminal locates in a cell border area. The second base station duplicates a desired data for a second communication terminal located in a cell of the second base station, and transmits the duplicated desired data to the first base station. The first base station generates a transmission signal based on the value of the interference suppression parameter, the desired data for the first communication terminal, the desired data for the second communication terminal received from the second base station and a control information on data cooperative transmission, and the second base station generates a transmission signal of the desired data for the second communication terminal. Each of the base stations cooperatively transmits the transmission signal at a predetermined data cooperative transmission timing.