Abstract: This application provides an interference measurement method and apparatus. A second functional entity of an interference-generating node sends, by using one or more beams corresponding to a reference signal resource identifier of a first functional entity of the interference-generating node, a reference signal used for interference measurement, so that an interfered node can perform interference measurement.

Abstract: This application provides a transmission parameter configuration method and an apparatus. The method includes: A first node receives a transmission configuration message, where the transmission configuration message includes transmission configuration index information and a transmission parameter corresponding to the transmission configuration index information, and the transmission configuration index information is used to identify different transmission modes; the first node obtains a transmission indication message, where the transmission indication message includes the transmission configuration index information, and the transmission indication message is used to indicate the first node to apply the transmission parameter corresponding to the transmission configuration index information; and the first node performs, based on the transmission configuration index information, data transmission by using the transmission parameter corresponding to the transmission configuration index information.

Abstract: This application provides a method for reporting a measurement result of interference measurement, to implement interference management performed by a parent node on a child node in an IAB system. The method includes: performing, by a second node, interference measurement to obtain one or more measurement results, the interference measurement includes interference measurement in a first mode and/or interference measurement in a second mode, and sending, by the second node, an uplink signal to the first node, the uplink signal includes the one or more measurement results, the uplink signal includes an indication field, and the indication field is used to indicate a mode of interference measurement corresponding to each of the one or more measurement results.

Abstract: Example embodiments of this application provide a slot format configuration method. The method includes: a second node sends first configuration information to a first node, where the second node is a parent node of the first node; the first node determines a slot format of each slot in a first set of slots based on the first configuration information, where the first set of slots includes slots that are used for communication between the first node and a third node in one or more periods, and the third node is a child IAB node of the first node or a terminal device served by the first node; and the first node modifies slot formats of some slots in the first set of slots to obtain modified slot formats of these slots.

Abstract: This application provides a data transmission method and an apparatus, to improve resource utilization. The method includes: A first node obtains reference information, where the reference information includes information about a first subcarrier spacing and information about a first backhaul resource. The first node transmits data on a second backhaul resource by using a second subcarrier spacing, where the second backhaul resource includes one or more sub-resources, each of the one or more sub-resources includes M resource units, M is an integer greater than 1, M is determined based on the first subcarrier spacing and the second subcarrier spacing, the second subcarrier spacing is greater than the first subcarrier spacing, and the second backhaul resource is a subset of the first backhaul resource.

Abstract: This specification discloses signal configuration methods and apparatuses. One method includes: sending, by a first node of a wireless system, a synchronization signal block (SSB) at a set of candidate locations of SSBs, wherein the SSB is used by a second node of the wireless system to detect or measure the SSB; receiving, by the first node, SSB optimization configuration information comprising an identifier of the SSB; determining, by the first node, a subset of the set of candidate locations based on the SSB optimization configuration information; and sending, by the first node, the SSB at the subset of the set of candidate locations.

Abstract: This application provides a power control method including: receiving, by a second node, radio resource control (RRC) from a first node, where the RRC includes a power control parameter set configured for the second node, the power control parameter set includes a power control index, and the power control index is determined based on a transmission mode or a transmission capability of the second node; receiving downlink control information (DCI) including power control index indication information used to: when the first node schedules the second node, indicate a value of a power control index that is for uplink transmission and that is for the second node; determining a transmit power based on the power control index indication information and the power control parameter set; and sending a signal at the determined transmit power.

Abstract: This application provides a resource scheduling method and apparatus. The resource scheduling method includes: receiving, by a second node, resource configuration information sent by a first node, where the resource configuration information is used to indicate a time domain position of a backhaul resource set, and the backhaul resource set includes a fixed backhaul resource and a plurality of dynamic backhaul resources; receiving, by the second node on the fixed backhaul resource, first indication information sent by the first node, where the first indication information is used to indicate information about scheduled dynamic backhaul resources in the plurality of dynamic backhaul resources; and receiving, by the second node, a signal on the scheduled dynamic backhaul resources.

Abstract: A method includes: receiving, by a first node, transmission timing information sent by a second node, where the transmission timing information includes a first network timing advance; and determining, by the first node, frame timing of the first node based on the transmission timing information, where the frame timing includes a downlink frame sending time and/or an uplink frame receiving time of the first node; and the second node is an upper-level node of the first node.

Abstract: This application relates to the field of communications technologies, and discloses a resource configuration method and a node. The method includes: sending, by an parent node of a first node, first configuration information to the first node; and then determining, by the first node based on the first configuration information, a second resource for communication between the first node and a child node served by the first node. In this way, the determined second resource can implement orthogonalization between DMRS ports of an access link of the first node and a backhaul link of the first node, and therefore, link performance is improved.

Abstract: A movable side wall and opening/closing mechanism for railroad boxcars, comprising a side wall assembly (1), an end-portion opening/closing mechanism (2), a hinged rod assembly (3), a lateral door central clamping device (4), a upper transmission shaft assembly (5), a lower transmission shaft assembly (6), a upper track assembly (7) and a lower track assembly (8); upon loading/unloading cargo, the movable side wall can be opened further, so as to allow multiple forklifts of any tonnage on the ground to load/unload cargo to/from any positions of a carriage; the hinged rod assembly (3) and the central clamping device (4) are provided to keep the movable side wall reliably closed in order to ensure security and self-locking during transportation.

Abstract: Embodiments of this application disclose a reference signal transmission method and apparatus for a relay node to transmit a reference signal to a base station. The method includes receiving, by a first node, a first configuration message sent by a second node, where the first configuration message includes information about a resource for transmitting a first reference signal. The method includes sending, by the first node, the first reference signal through a first port based on the first configuration message. The method further includes performing, by the second node, a channel measurement on the first reference signal to determine an interference from a first data signal sent by the first node to a third node to a data signal sent by the first node to the second nod. The method further includes sending, by the first node, the first data signal to the third node through a second port.

Abstract: The present disclosure discloses a road-rail dual-purpose vehicle, comprising a vehicle frame (1), and a lifting airbag mounting seat (1c) is provided between two longitudinal beams (1a) of the vehicle frame (1); a load-bearing airbag insertion hole is formed in a lower cover plate (1a1) of the longitudinal beam (1a); a load-bearing airbag mounting seat (1d) is installed in the load-bearing airbag insertion hole, and a bearing bolster (1e) is installed on an outer side of the longitudinal beam (1a).

Abstract: A first node device includes a transmitter, a receiver, a processor, and a non-transitory computer-readable storage medium storing a program to be executed by the processor. The program includes instructions to cause the transmitter to send, to a second node device, an offset of a first uplink sending timing of the second node device and a first amount of timing adjustment of the second node device, cause the transmitter to send indication information to the second node device, where the indication information indicates whether the second node device sends uplink data by using the first uplink sending timing of the second node device, and receive, through the receiver, data sent by the second node device, where the first node device is a parent node device of the second node device.

Abstract: Various embodiments provide a relay transmission method, where a first node is a parent node of a second node. In those embodiments, a request message from the first node can be received by the second node, where the request message is configured to request the second node to become a parent node of the first node. Still in those embodiments, indication information can be sent, by the second node, to the first node, where the indication information is used to indicate that a downlink beam sent from the second node to the first node after the second node becomes the parent node is the same as or similar to an uplink beam sent from the second node to the first node when the first node is the parent node. The indication information may be carried in a response message for the request message.

Abstract: This application provides a signal transmission method and apparatus. The method includes: receiving, by a first device, configuration information sent by a third device and used to indicate a quantity of times for which the third device sends a signal group, in other words, learning in advance, based on the configuration information, a quantity of receive beams that can be measured, and selecting, after receiving first signals of the quantity an optimal receive beam from receive beams that have been detected, to avoid continuously detecting more first signals for selection,.

Abstract: Example methods and apparatus for configuring a reference signal are provided. One example method includes determining first information including beam information of beams used by a link between the second node and a third node by a. first node. The first node serves as an upper-level node of a second node. The first node sends configuration information to the second node to indicate a reference signal received or sent by the second node on a target beam. The target beam is at least one of the beams used by the link between the second node and the third node, so that the first node can indicate the second node to receive or send the reference signal based on the beams used by the link between the second node and the third node. The second node may further measure interference between the backhaul links based on the reference signal.

Abstract: This application discloses example power control methods and apparatuses. One example method includes receiving, by a first node, first information sent by a second node, where the first information is used to determine a first transmit power, where the first transmit power is a power used when the first node sends downlink information to the second node through a first link, where the first link is a link between the first node and the second node, and where the first node is an upper-level device of the second node. The first node can then determine the first transmit power based on the first information.

Abstract: Examples synchronization signal configuration methods and apparatus are described. One example method is applied to a relay network including a first node and a second node, and the first node is a parent node of the second node. The example method includes sending synchronization signal configuration information by the first node to the second node, where the synchronization signal configuration information is used to indicate M first synchronization signal time-frequency positions and N second synchronization signal time-frequency positions in a candidate synchronization signal time-frequency position set. The first synchronization signal time-frequency position is used by the second node to send a first synchronization signal, the second synchronization signal time-frequency position is used by the second node to receive or detect a second synchronization signal, the candidate synchronization signal time-frequency position set includes W synchronization signal time-frequency positions, and W?(M+N).

Abstract: A power headroom transmission method and a device are provided. The transmission method is applied to a terminal device that supports use of two different types of waveform for data transmission, the terminal sends a first power headroom information and ?M, wherein the first power headroom information is used to indicate power headroom of the terminal device when data is transmitted by using the first waveform, ?M is a difference between a first maximum power and a second maximum power of the terminal device, the first maximum is a maximum power when using the first waveform, the second maximum is a maximum power when using the second waveform.