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: Embodiments of this application provide a communication method and an apparatus. The method includes: receiving configuration information from a first node or a third node, where the configuration information indicates time-frequency information of a SIB1 of a distributed unit DU of the first node; and determining, based on the obtained time-frequency information of the SIB1 of the DU of the first node, an unavailable resource of a mobile termination MT function of the first node, where the first node is an integrated access and backhaul IAB node, the second node is a parent node of the first node, and the third node is a donor node. The technical solution provided in this application can effectively avoid a resource conflict between the MT function and the DU of the IAB node.

Abstract: Embodiments of this application provide a method for transmitting a reference signal, including: sending, by a network device to UE, information about a waveform, an antenna port, and a resource block, where the waveform includes an OFDM waveform or a DFT-s-OFDM waveform, the antenna port indicates a resource mapping pattern used by the UE to send or receive a reference signal, and in a symbol of the resource mapping pattern, a reference signal corresponding to the DFT-s-OFDM waveform is mapped in frequency domain in a comb-shaped manner, and a reference signal corresponding to the OFDM waveform is mapped to a frequency domain resource to which the DFT-s-OFDM waveform is not mapped; and sending, by the network device, the reference signal or receiving the reference signal on the resource block based on the information about the waveform, the information about the antenna port, and the information about the resource block.

Abstract: A pixel circuit and a driving method therefor, a display substrate, and a display device are provided. The pixel circuit includes: a light-emitting control circuit, used to control a potential of a first node in response to a first scan signal from a first scan signal terminal and a data signal from a data signal terminal, output a direct current power signal provided by a direct current power terminal to a second node in response to a light-emitting control signal from a light-emitting control signal terminal, and control switching-on and switching-off between a third node and a light-emitting element; a compensation circuit, used to adjust the potential of the first node according to a potential of the second node; and a driving circuit, used to output a driving signal to the third node in response to the potential of the first node and the potential of the second node.

Abstract: Example reference signal sending and receiving methods and apparatus are described. One example method includes generating a first reference signal based on a first sequence and generating a second reference signal based on a second sequence by a first device, where the first sequence and the second sequence are complementary sequences. The first device sends the first reference signal and the second reference signal by using a same antenna port and a same resource.

Abstract: A PTRS processing method includes: receiving, by a terminal, first indication information and second indication information from a network device, where the first indication information is used to indicate a time-domain location at which a PTRS is to be sent by the terminal, and the second indication information is used to indicate an offset of an initial time-domain location to which the PTRS is mapped by the terminal; mapping, by the terminal, the PTRS to one or more DFT-s-OFDM symbols based on the first indication information and the second indication information; and sending, by the terminal, the one or more DFT-s-OFDM symbols. In this way, the PTRS mapped to the DFT-s-OFDM symbol is offset at a DFT-s-OFDM symbol level.

Abstract: The present disclosure relates to control information sending methods in a wireless communications system. In one example waveform control information sending method, a network device obtains control information that includes uplink transmission waveform indication information, and sends the control information to a terminal. After receiving the control information, the terminal determines, based on the control information, a waveform used to send uplink data.

Abstract: This application provides a method and apparatus for determining a resource in a relay system. By receiving resource indication information transmitted by an upper-level node, a first node determines availability of a symbol in a first resource set located between a first hard resource set and a second hard resource set, and communicates with the upper-level node on the symbol based on the resource indication information to maximally improve resource utilization.

Abstract: This application provides a resource configuration method and apparatus. A multiplexing type between a second functional unit and each of one or more antenna panels of a first functional unit is indicated to an IAB node, so that the IAB node obtains a resource configuration of an MT or a resource configuration of a DU based on the multiplexing type. This helps implement a resource configuration in the IAB node in a case of a plurality of antenna panels.

Abstract: This application provides a random access resource configuration method and an apparatus. The method includes: A first network device receives configuration information of a first physical random access channel PRACH resource; the first network device receives location adjustment information, where the location adjustment information is used to indicate to adjust a location of at least a part of the first PRACH resource; the first network device determines a second PRACH resource based on the configuration information of the first PRACH resource and the location adjustment information; and the first network device sends a random access request to a second network device on the second PRACH resource. In the foregoing technical solutions, the first network device can adjust the configured first PRACH resource, and perform random access by using the second PRACH resource obtained after the adjustment.

Abstract: Embodiments of the present disclosure disclose example network device, terminal device, and method for notifying information about a power difference. One example network device includes one or more processors performing operations that include determining first information and sending, by a transceiver of the network device, the first information to a terminal device. The first information indicates a first power difference that is associated with a first waveform. The first power difference is an offset between a power of a reference signal and a power of a first physical downlink shared channel (PDSCH) on which the first waveform is used.

Abstract: A PTRS processing method and an apparatus. The method includes: receiving, by a terminal, first indication information and second indication information from a network device, where the first indication information is used to indicate a time-domain location at which a PTRS is to be sent by the terminal, and the second indication information is used to indicate an offset of an initial time-domain location to which the PTRS is mapped by the terminal; mapping, by the terminal, the PTRS to one or more DFT-s-OFDM symbols based on the first indication information and the second indication information; and sending, by the terminal, the one or more DFT-s-OFDM symbols. In this way, the PTRS mapped to the DFT-s-OFDM symbol is offset at a DFT-s-OFDM symbol level, so that PTRS collision between terminals can be avoided to an extent, thereby improving phase tracking precision.

Abstract: A multimodal transportation interworking system at least comprises: a rail system; a cargo vehicle (31), which may be movably disposed on a rail beam of the rail system (30); a transfer apparatus (32), for transferring a goods loading device (33) from a transportation tool to the cargo vehicle (31) and loading onto the cargo vehicle, or unloading the goods loading device (33) from the cargo vehicle and conveying the same onto the transportation tool; a processor, which is connected to the cargo moving device (31) and the transfer apparatus (32) so as to control the transfer apparatus to transfer the goods loading device, and after the goods loading device is secured onto the cargo vehicle, to control the cargo vehicle to move on the rail beam.

Abstract: A pixel circuit and a driving method therefor, a display substrate, and a display device are provided. The pixel circuit includes: a light-emitting control circuit, used to control a potential of a first node in response to a first scan signal from a first scan signal terminal and a data signal from a data signal terminal, output a direct current power signal provided by a direct current power terminal to a second node in response to a light-emitting control signal from a light-emitting control signal terminal, and control switching-on and switching-off between a third node and a light-emitting element; a compensation circuit, used to adjust the potential of the first node according to a potential of the second node; and a driving circuit, used to output a driving signal to the third node in response to the potential of the first node and the potential of the second node.

Abstract: This application discloses a signal transmission method, including: obtaining, by a terminal device, to-be-transmitted data, uplink control information, and a demodulation reference signal; mapping the to-be-transmitted data, the uplink control information, and the demodulation reference signal to generate multiplexed symbols. The multiplexed symbols include DFT-s-OFDM symbols or OFDM symbols. N first multiplexed symbols are located on one side or two sides of a second multiplexed symbol. A location relationship between each of the N first multiplexed symbols and the second multiplexed symbol satisfies a mapping condition. N is an integer greater than or equal to 1. The first multiplexed symbol is a multiplexed symbol to which the uplink control information is mapped, and the second multiplexed symbol is a multiplexed symbol to which the demodulation reference signal is mapped.

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.