Abstract: A fly ash recycling gasification furnace includes a fly ash burner, an ash remover, a fly ash storage tank, a variable pressure lock hopper, a fly ash blending system, an exhaust filter, and a backflushing nitrogen buffer tank. The fly ash burner is located on an inner wall of a hearth of the gasification furnace. The ash remover has an inlet connected to an outlet of a waste boiler of the gasification furnace. The fly ash storage tank is connected to a pressurized nitrogen inlet pipe, and a bottom outlet of the ash remover. The variable pressure lock hopper is connected to the fly ash storage tank. The fly ash blending system is connected to the variable pressure lock hopper and the fly ash burner. The exhaust filter is connected to the storage tank, the lock hopper and the blending system. The buffer tank is connected to the exhaust filter.

Abstract: This application provides a communication method, a communications apparatus, and a system, to reduce a transmission delay of an emergency service. The method may include receiving an uplink grant. The method may also include determining, based on a time-domain position of an uplink grant resource indicated by the uplink grant, a first uplink grant resource used to transmit first service data. Furthermore, the method may include transmitting the first service data on the first uplink grant resource.

Abstract: A data transmission method includes obtaining, by a first communication apparatus, a data packet, a first quality of service (QoS) parameter and a second QoS parameter, mapping, by the first communication apparatus, the data packet to a data radio bearer (DRB) or a radio link control (RLC) layer entity based on the first QoS parameter and the second QoS parameter, and sending the data packet to a second communication apparatus. The first QOS parameter and the second QOS parameter corresponding to the data packet.

Abstract: A random access method includes working, by a user equipment (UE), on a first bandwidth part (BWP), where the first BWP is a currently active BWP, when the UE needs to perform a random access procedure, the UE performs the random access procedure on an initial BWP or on the first BWP, and when the UE receives BWP switching indication information from a network device instructing the UE to use a second BWP when performing the random access procedure on the first BWP, continuing, by the UE, to perform the random access procedure on the first BWP, or stopping, by the UE, performing the random access procedure on the first BWP, and performing the random access procedure on the second BWP.

Abstract: A signal transmission method includes receiving configuration information from a network device. The configuration information is used to indicate a serving cell that is allowed or forbidden to be used by a terminal for a first service or first control information. The method also includes adjusting the serving cell that is allowed or forbidden to be used by the terminal for the first service or the first control information. The method further includes transmitting the first service or the first control information by using an adjusted serving cell.

Abstract: A data transmission method and an apparatus are provided. The method includes determining, by a first communication apparatus, that transmission of a first data packet has failed, the first data packet being transmitted in a first transmission manner; and sending, by the first communication apparatus, P data packets after the first data packet, the P data packets being sent in a second transmission manner, P is an integer greater than or equal to 1, and a second transmission reliability corresponding to the second transmission manner is greater than the first transmission reliability corresponding to the first transmission manner. In this way, because the first communication apparatus sends the P data packets after the first data packet in the second transmission manner, transmission reliability of the P data packets is improved, so that successful transmission of the P data packets can be effectively ensured, and service interruption can be avoided.

Abstract: Example message transmission methods and apparatus are provided. One example method includes obtaining a first correspondence by a core network device, where the first correspondence includes a correspondence between target device information and first time sensitive networking (TSN) domain information. The target device information is used to identify a target device, and the first TSN domain information is used to identify a TSN domain to which a first TSN device belongs. The core network device receives a multicast message from a second TSN device, where the multicast message includes second TSN domain information which is used to identify a TSN domain to which the second TSN device belongs. The core network device sends the multicast message to the target device when determining, based on the second TSN domain information and the first correspondence, that the second TSN device and the first TSN device belong to a same TSN domain.

Abstract: A first access network device allocates, to a second access network device based on an obtained quantity, supported by a terminal, of data radio bearers (DRBs) to which a data frame compression function is applied, a quantity of DRBs the second access network device can configure for the terminal and to which the function is applied can configure, and notifies the second access network device of an allocation result.

Abstract: A random access method includes working, by a user equipment (UE), on a first bandwidth part (BWP), where the first BWP is a currently active BWP, when the UE needs to perform a random access procedure, the UE performs the random access procedure on an initial BWP or on the first BWP, and when the UE receives BWP switching indication information from a network device instructing the UE to use a second BWP when performing the random access procedure on the first BWP, continuing, by the UE, to perform the random access procedure on the first BWP, or stopping, by the UE, performing the random access procedure on the first BWP, and performing the random access procedure on the second BWP.

Abstract: An Ethernet header compression method and apparatus and an Ethernet header decompression method and apparatus. After receiving an Ethernet frame including a first to-be-compressed field, a compression end compresses an Ethernet header of the Ethernet frame based on a first correspondence including first compression information and a value of the first to-be-compressed field and the first compression information. Correspondingly, a decompression end decompresses an Ethernet header of a compressed Ethernet frame based on the first correspondence when receiving the compressed Ethernet frame. In the embodiments of this application, because the Ethernet header of the Ethernet frame is compressed, communication resources is saved.

Abstract: Example communication methods and apparatus are described. One example method includes obtaining a first compression dictionary by a compression node. The compression node compresses a first data packet by using a first compression dictionary, and sends a first compressed data packet to the decompression node. The compression node compresses a second data packet by using the first compression dictionary, and sends a second compressed data packet to the decompression node.

Abstract: A method and a system for rail transit communication. The method includes: selecting a second target FSO transceiver from the FSO transceivers that are currently located within a signal coverage of a target FSO base station, in response to detecting that a first target free-space-optics (FSO) transceiver moves out of the signal coverage of the target FSO base station when data communication between the target FSO base station and the target user terminal is performed via the first target FSO transceiver, where the target FSO base station is one of the FSO base stations located on the rail; and maintaining the data communication between the target FSO base station and the target user terminal, by using the second target FSO transceiver. Handover among the base stations is reduced for user equipment, data communication rate is increased, and communication experience of passengers can be improved.

Abstract: The disclosure relates to a system, method, and network node for generating at least one classification based on multiple data sources. The system comprises at least one layer comprising one or more supervised neural networks (SNN); at least one layer comprising one or more unsupervised neural networks (USNN); and at least one normalization layer. Each of the layers has inputs and outputs, the inputs of a first layer being operative to receive data from the data sources, the inputs of a layer other than the first layer being communicatively connected to the outputs of a previous layer, the outputs of a layer other than a last layer being communicatively connected to inputs of a following layer, the last layer having at least one output, and the at least one normalization layer being operative to normalize the outputs from the previous layer into normalized inputs for the following layer.

Abstract: A communication method enables a base station to allocate a radio resource to a data packet of a time sensitive networking (TSN) network in a scenario in which the TSN network transmits the data packet through a 5G network. The method includes: obtaining, by an access network device, a first traffic pattern, and allocating a radio resource to a first traffic based on the first traffic pattern. The first traffic pattern includes time information of the first traffic with respect to a first clock. The first clock is a clock used by a first network. The access network device belongs to the first network. The time information includes a time point and/or a period at/in which a data packet of the first traffic arrives at the first network.

Abstract: A communication method and apparatus is provided, to properly schedule retransmission of an uplink resource in a scenario in which uplink resources overlap in time domain. The method includes: determining, by a terminal, that a priority of a first uplink resource is higher than a priority of a second uplink resource in the first uplink resource and the second uplink resource that have an overlapping part in time domain; and when determining to send a signal by using the first uplink resource on the overlapping part, indicating, by the terminal to a network device, whether a MAC PDU is formed for the second uplink resource or whether data is stored in a corresponding buffer for the second uplink resource.

Abstract: A method includes: triggering, by a terminal device, a scheduling request (SR); in response to determining that a physical uplink control channel (PUCCH) carrying the SR and a physical uplink shared channel (PUSCH) carrying a first data packet overlap in time domain of a first uplink resource and a processing status of the PUSCH on the first uplink resource is processing completed, sending, based on the processing status of the PUSCH on the first uplink resource, the PUCCH on an overlapping time domain resource. According to the method, when the PUCCH carrying the SR and the PUSCH overlap in time domain of the first uplink resource, the terminal device considers the processing status of the PUSCH on the first uplink resource, and may determine, based on the processing status of the PUSCH on the first uplink resource, to send the PUCCH or the PUSCH on the overlapping time domain resource.

Abstract: This application provides a data transmission method. The method includes: A terminal device receives indication information from a network device, where the indication information includes a bit sequence, a value of an ith bit in the bit sequence indicate a usage status of an ith logical channel in M logical channels associated with a radio bearer, and a duplication transmission function is configured for the radio bearer; the terminal device transmits data based on the indication information through at least one logical channel associated with the radio bearer; and because the M logical channels are sorted based on IDs of cell groups associated with the M logical channels and IDs of the M logical channels, the ith bit in the bit sequence included in the indication information indicates the usage status of the ith logical channel in the M logical channels.

Abstract: Embodiments of this application provide a communication method and a communications apparatus. The communication method includes: when a radio bearer RB needs to be established between a network device and a terminal device, the network device includes a first node and a second node, and functional entities corresponding to the RB include one PDCP entity and more than two RLC entities corresponding to the PDCP entity. The method includes: determining, by the first node, configuration information, where the configuration information is used to instruct the second node to establish N tunnels, the tunnel is used to transmit PDCP data or RLC data between the first node and the second node, and N is an integer greater than or equal to 2; and transmitting, by the first node, the configuration information to the second node.

Abstract: Embodiments of this application provide a random access method including: A terminal side device obtains first uplink data from a first message buffer, where the first message buffer is a buffer specific to a first random access procedure, the first random access procedure is a procedure in which the terminal side device sends a first random access request, sends first uplink data on a first uplink resource, and receives response information, and the response information is a first random access response to the first random access request or a response to the first uplink data. The terminal side device sends the first random access request to a network side device, and sends the first uplink data to the network side device on the first uplink resource. The terminal side device detects downlink control information, where the downlink control information indicates a resource of the response information.

Abstract: Embodiments of this application disclose example data compression methods and example base stations. One example method includes obtaining, by a base station, identification information of at least one of a data compression device or a data decompression device. A dictionary can then be generated based on the identification information. The dictionary can then be sent to the data compression device and the data decompression device to enable the data compression device and the data decompression device to perform data compression and data transmission based on the dictionary.