Abstract: A communication method includes: a first communication apparatus obtains first configuration information and sends the first configuration information to a second communication apparatus, where the first configuration information includes configuration information of a first sidelink radio bearer which is used to carry a first unicast service between the first communication apparatus and the second communication apparatus, and the first sidelink is a radio link between the first communication apparatus and the second communication apparatus.

Abstract: A method includes: a first terminal device receives first information from a network device, where the first information includes an indication information of a first unicast connection and a reference signal configuration corresponding to the first unicast connection, the reference signal configuration is used by the first terminal device to send a reference signal to a second terminal device; and the first terminal device sends the reference signal to the second terminal device on a sidelink based on the reference signal configuration.

Abstract: A hybrid function LED auxiliary lamp is provided. The auxiliary lamp comprises a housing and a lighting assembly disposed within the housing. The lighting assembly includes a plurality of LED light sources mounted on a printed circuit board. An optical manifold comprising a plurality of reflective cavities is mounted on the printed circuit board. Each reflective cavity defines a respective corresponding focal point. The LED light sources are aligned with respect to the optical manifold such that a center of each respective LED light source corresponds to a respective focal point of a reflective cavity.

Abstract: A hybrid function LED auxiliary lamp is provided. The auxiliary lamp comprises a housing and a lighting assembly disposed within the housing. The lighting assembly includes a plurality of LED light sources mounted on a printed circuit board. An optical manifold comprising a plurality of reflective cavities is mounted on the printed circuit board. Each reflective cavity defines a respective corresponding focal point. The LED light sources are aligned with respect to the optical manifold such that a center of each respective LED light source corresponds to a respective focal point of a reflective cavity.

Abstract: This application discloses a fan box, a server system, and a method for adjusting a rotation speed of a fan box, and belongs to the field of server heat dissipation technologies. The fan box provided in embodiments of this application has a plurality of communication interfaces, and each communication interface can be electrically connected to one server board. Therefore, the fan box provided in embodiments of this application can be electrically connected to a plurality of server boards. In addition, a controller in the fan box can adjust a rotation speed of a fan based on a plurality of fan box speed adjustment instructions. Therefore, the fan box provided in embodiments of this application can be controlled by a plurality of master control nodes, and is applicable to a multi-node server system with a central management unit-free architecture, and any server system that requires multi-node master control.

Abstract: A fault determining method, includes: a first terminal device monitors a parameter of a sidelink between the first terminal device and a second terminal device, to determine whether a unicast connection on the sidelink satisfies a first condition; and when the unicast connection satisfies the first condition, the first terminal device determines that the unicast connection is faulty.

Abstract: A new multifunctional biomass suspension deflagration test-bed is provided, which includes a closed combustion chamber. An integrated temperature and pressure sensor is arranged in the combustion chamber, and a high-speed camera and a laser concentration-measuring instrument are arranged outside the combustion chamber, which can monitor suspension deflagration. A bottom of the combustion chamber is provided with a hollow mushroom-shaped dispersion nozzle with a tray. A nozzle body is provided with a gas main-flow channel at a center thereof and gas deflected-flow channels arranged around the gas main-flow channel. A mushroom-shaped baffle plate is arranged above the nozzle body. The gas main-flow channel extends upward to the mushroom-shaped baffle plate. A vent hole is formed in a portion of the mushroom-shaped baffle plate which is corresponding to the gas main-flow channel. Each gas deflected-flow channel is inclined outward from bottom to top and directed to the mushroom-shaped baffle plate.

Abstract: A method for controlling a fuel cell that includes an electrochemical reactor; a cooling circuit; a controller; a coolant circuit; a first temperature sensor; and a second temperature sensor. The cooling circuit includes a cooling pipe and is configured to cool the electrochemical reactor; the controller is configured to control operations of the electrochemical reactor and the cooling circuit; the cooling pipe includes a first water inlet and a first water outlet; and the coolant circuit is connected to the first water inlet and the first water outlet. The method includes comparing the first temperature of the coolant at the first water inlet to the second temperature at the first water outlet; and controlling operations of the heater and the electrochemical reactor based on the comparison result.

Abstract: A communication method and apparatus. A first network element sends, to a second network element, N groups of QoS profiles corresponding to a first QoS flow, and then receives first indication information from the second network element, where the first indication information indicates one of the N groups of QoS profiles selected by the second network element for the first QoS flow. The first network element sends second indication information to a third network element, where the second indication information indicates the one of the N groups of QoS profiles selected for the first QoS flow.

Abstract: A method for controlling a fuel cell that includes an electrochemical reactor; a cooling circuit; a controller; a coolant circuit; a first temperature sensor; and a second temperature sensor. The cooling circuit includes a cooling pipe and is configured to cool the electrochemical reactor; the controller is configured to control operations of the electrochemical reactor and the cooling circuit; the cooling pipe includes a first water inlet and a first water outlet; and the coolant circuit is connected to the first water inlet and the first water outlet. The method includes comparing the first temperature of the coolant at the first water inlet to the second temperature at the first water outlet; and controlling operations of the heater and the electrochemical reactor based on the comparison result.

Abstract: In an embodiment a sidelink communication method includes when a hybrid automatic repeat request (HARQ) feedback attribute of at least one sidelink logical channel of a first terminal device is enabled, obtaining, by the first terminal device from a network side device, one or more resource pools for the first terminal device, wherein a physical sidelink feedback channel (PSFCH) resource is configured in at least one of the resource pools.

Abstract: A method includes: a first terminal device receives first information from a network device, where the first information includes an indication information of a first unicast connection and a reference signal configuration corresponding to the first unicast connection, the reference signal configuration is used by the first terminal device to send a reference signal to a second terminal device; and the first terminal device sends the reference signal to the second terminal device on a sidelink based on the reference signal configuration.

Abstract: Embodiments of this application provide a method and a communications apparatus for hybrid automatic repeat request processing, and relate to the field of communications technologies, to help reduce the possibility that an exception occurs due to the introduction of a HARQ feedback mechanism in sidelink communication. The method includes: A first terminal device receives first sidelink grant information, a first HARQ process identifier (ID), and first indication information from a network device. If the first indication information indicates retransmission and a transport block corresponding to a first HARQ process has been successfully sent, the first terminal device ignores the first sidelink grant information.

Abstract: When a first sidelink channel state information CSI report is triggered, a first terminal obtains a first sidelink resource configured by a base station for the first terminal, where the first sidelink resource can be used to transmit the sidelink CSI report. The first terminal sends the first sidelink CSI report to a second terminal on the first sidelink resource, where the first sidelink CSI report is used to feed back CSI of a sidelink between the first terminal and the second terminal.

Abstract: A fuel cell including an electrochemical reactor; a cooling circuit; a controller; a coolant circuit; a first temperature sensor; and a second temperature sensor. The cooling circuit includes a cooling pipe, a water pump, a radiator, a heater, and a thermostatic three-way valve. The cooling circuit is configured to cool the electrochemical reactor. The controller is configured to control operations of the electrochemical reactor and the cooling circuit. The cooling pipe includes a first water inlet and a first water outlet; and the coolant circuit is disposed between the first water inlet and the first water outlet. The first temperature sensor is disposed at the first water inlet. The second temperature sensor is disposed at the first water outlet. The first temperature sensor and the second temperature sensor are configured to detect and transmit temperature data of a coolant in the cooling pipe to the controller.

Abstract: This application provides a communication processing method and a communication device. A first terminal device generates first acknowledgement information when the first terminal device does not perform transmission on a sidelink by using a first resource, where the sidelink is a wireless direct communication link between the first terminal device and a second terminal device; and then, the first terminal device sends the first acknowledgement information to the network device.

Abstract: A method includes: a first terminal device receives first information from a network device, where the first information includes an indication information of a first unicast connection and a reference signal configuration corresponding to the first unicast connection, the reference signal configuration is used by the first terminal device to send a reference signal to a second terminal device; and the first terminal device sends the reference signal to the second terminal device on a sidelink based on the reference signal configuration.

Abstract: This application relates to a discontinuous reception method. In the first time unit, for example, the first symbol, after a hybrid automatic repeat request HARQ feedback occasion of a sidelink HARQ process, a first terminal may start a drx-HARQ-RTT-TimerSL and start a drx-RetransmissionTimerSL when the drx-HARQ-RTT-TimerSL expires. During running of the drx-RetransmissionTimerSL, the first terminal monitors a physical downlink control channel. In this way, sidelink retransmission efficiency can be improved, an increase of a sidelink retransmission delay can be avoided, and sidelink-based applications, such as unmanned driving, automatic driving, assisted driving, intelligent driving, networked driving, intelligent networked driving, and car sharing in the field of artificial intelligence can be better supported.

Abstract: A sidelink resource determining method, an apparatus, and a system, to improve reliability of sidelink data transmission when a first terminal does not receive acknowledgment information for a first data packet from a second terminal. According to the method, when the first terminal determines that the first terminal does not receive the acknowledgment information that is for the first data packet and that is fed back by the second terminal, if the first terminal determines that the second terminal fails to decode the first data packet, the first terminal may determine a sidelink resource used to retransmit the first data packet, so that the first data packet can be retransmitted on the re-determined sidelink resource. In this way, reliability of sidelink transmission is improved. The solution may be applied to fields including unmanned driving, automated driving, driver assistance, intelligent driving, connected driving, intelligent network driving, car sharing, and artificial intelligence.

Abstract: A random access method and apparatus are provided. The method includes sending, by a first terminal side device, a random access preamble to a network side device, receiving, by the first terminal side device, a random access response (RAR) corresponding to the random access preamble, where the RAR includes P temporary cell radio network temporary identifiers (TC-RNTIs), and P is an integer greater than 1, and sending, by the first terminal side device to the network side device based on the RAR, a first message and a demodulation reference signal used to demodulate the first message, where the demodulation reference signal is generated based on a first TC-RNTI, and the first TC-RNTI is one of the P TC-RNTIs.