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.

Abstract: Embodiments of this application provide a resource scheduling method, which includes: transmitting, by a terminal device, at least first indication information to a network device on a pre-allocated uplink resource, where the first indication information indicates a data volume of to-be-transmitted data of the terminal device; and transmitting the to-be-transmitted data on an uplink resource if the terminal device receives at least second indication information transmitted by the network device, where the second indication information indicates the uplink resource allocated by the network device to the terminal device. In the embodiments of this application, when to-be-transmitted data is MBB service data, the terminal device may transmit a data volume of the MBB service data to the network device on a grant-free resource, so that the network device allocates an uplink resource to the terminal device and the terminal device transmits the MBB service data on the uplink resource.

Abstract: This application provides a method for determining a configured resource, and an apparatus. The method includes: obtaining, by a terminal device, configuration information of a configured resource from a network device, where the configured resource is a periodic resource, and the configuration information includes a periodicity parameter of the periodic resource; maintaining, by the terminal device, a sequence number for the configured resource, where the sequence number is updated when a system frame number SFN wraps around; and determining, by the terminal device, the configured resource based on the sequence number and the periodicity parameter.

Abstract: A data integrity protection method and apparatus in a network environment are described. A terminal device obtains an integrity protection algorithm and a key corresponding to a session or a flow, and a DRB corresponding to the session. The terminal device performs, by using the integrity protection algorithm and the key corresponding to the session, integrity protection on data of the DRB corresponding to the session or the flow, where one session includes a plurality of flows. Different integrity protection algorithms and keys can be used for different sessions, and different integrity protection algorithms and keys can also be used for different flows. In this way, integrity protection is more flexible and meets security requirements of a same user for different services.

Abstract: The present disclosure relates to time synchronization methods and apparatus. In one example method, a terminal receives a system information block (SIB) sent by a distributed unit (DU), where the SIB is generated by the DU, the SIB includes time information, and the time information indicates a moment corresponding to a boundary of a system frame number (SFN) at which an end boundary of a system information (SI) window for sending the SIB is located, or indicates a moment corresponding to a boundary of an SFN immediately after an end boundary of an SI window for sending the SIB. The UE processes the time information to obtain a time reference.

Abstract: This application provides a reflective QoS flow characteristic-based communications method and apparatus. In the method, an access-network network element sends first information to a core-network network element, where the first information is used to indicate whether a data packet has a reflective QoS flow characteristic; and the access-network network element determines, based on the first information, whether there is a need to send a QoS flow identifier to a terminal. In this way, signaling overheads are reduced.

Abstract: This application provides a method including: determining, by a terminal device from at least one radio interface technology, a first radio interface technology used to send first information, where each of the at least one radio interface technology corresponds to an uplink resource, and the first information includes a size of to-be-sent data of at least one logical channel of the terminal device; and determining, by the terminal device based on the first information and attribute information of the first radio interface technology, whether to cancel the first information that is in a triggered state, where the attribute information of the first radio interface technology includes a priority of the first radio interface technology or an uplink resource corresponding to the first radio interface technology. The method provided in this application improves accuracy of canceling the first information that is in the triggered state, and shortens a data sending delay.

Abstract: Embodiments of this application provide a communication method, apparatus, a terminal, a network device, and a storage medium. After the terminal receives, from the network device, indication information used to indicate the terminal to report traffic pattern information of a first logical channel, a first PDU session, a first application, a first radio bearer, or a first QoS flow, the terminal reports the traffic pattern information of the first logical channel, the first PDU session, the first application, the first radio bearer, or the first QoS flow based on the indication information. In this manner, the terminal reports, based on the indication, the traffic pattern information of only the logical channel, the PDU session, the service, the radio bearer, or the QoS flow that is indicated by the network device.

Abstract: This application provides a scheduling request processing method and an apparatus. The method includes: determining, by a terminal device, that a condition for triggering a scheduling request SR of a first service is met; determining, by the terminal device, whether a priority of the first service is higher than a priority of a second service for which a scheduling request SR has been triggered or has been sent; and when determining that the priority of the first service is higher than the priority of the second service, triggering and/or sending, by the terminal device, the SR of the first service.

Abstract: Embodiments of the present invention provide an information transmission method, including: when a terminal device is in a power headroom report (PHR) triggering state, receiving, by the terminal device, a first indication from a network device, where the first indication is used to indicate a first uplink transmission resource of the terminal device, and the uplink transmission resource is used by the terminal device to perform uplink transmission with the network device; and keeping, by the terminal device, the power headroom report triggering state in a first time period, and canceling the power headroom report triggering state when the first time period expires, where the first time period is a second time period starting from a receiving time point of the first indication to a time domain end of the first uplink transmission resource indicated by the first indication.

Abstract: Embodiments disclose a random access method, a device, and a system, and relate to the field of communications technologies, to resolve a problem of how to implement network access when two or more uplink frequency bands exist in a 5G system. A specific solution is as follows: A terminal receives, from an access network device, random access configurations corresponding to at least two uplink frequency bands, and initiates random access based on at least one of the random access configurations corresponding to the at least two uplink frequency bands. The embodiments are used for a random access process.

Abstract: This application provides a data sending method, a data sending apparatus, and a terminal device, to improve utilization of a configured grant resource. The method includes: A terminal device receives a configuration message from a network device. The configuration message is used to indicate a configured grant, and the configuration message includes information about a timer corresponding to the configured grant. The terminal device determines that the configured grant is used for a HARQ process, and starts the timer for the HARQ process. To-be-sent data in the HARQ process is data on a first logical channel. During running of the timer, when there is to-be-newly-transmitted data on a second logical channel, the timer stops running, or a running state of the timer is ignored. The data on the second logical channel is sent by using the configured grant.

Abstract: According to embodiments of this application, a terminal device may indicate, to a network device, that at least two uplink grants are required for a to-be-sent data packet; or a terminal device sends, to a network device, indication information used to determine that at least two uplink grants are required for a to-be-sent data packet, so that the network device sends the at least two uplink grants for the to-be-sent data packet. Then, the terminal device assembles the to-be-sent data packet into at least two transport blocks, and sends the at least two transport blocks to the network device by using uplink resources indicated by the at least two uplink grants, to reduce a probability that the terminal device completely transmits the to-be-sent data packet at a time, thereby reducing continuous packet loss. This prevents a receiver manipulator from entering a deadlock state.

Abstract: A method, an apparatus, and a system for implementing data scheduling are provided. According to the application, a buffer status report (BSR) is generated when uplink data that needs to be sent exists; and by using the BSR and correspondence between a logical channel and a base station, a UE transmits the uplink data on a logical channel that corresponds to a base station, thereby avoiding a problem that data cannot be processed because a radio resource and a logical channel correspond to different base stations. Accordingly, the UE can transfer data to be uploaded to a correct base station corresponding thereto, which greatly improves efficiency of data scheduling in a mode of carrier aggregation between base stations.

Abstract: A network access method and an apparatus relate to the field of communications technologies, and are used to support an industrial terminal in accessing a network when an architecture in which a control node sinks is used in a communications network. The method includes: An access network device sends an access list of a cell, where the access list of the cell includes at least one MAC address or group identifier. The access network device receives a message 3 sent by a terminal, where the message 3 includes a MAC address or a group identifier of the terminal. The access network device determines, depending on whether the MAC address or the group identifier of the terminal exists in the access list of the cell, whether the terminal can access the cell. This application is applicable to a process in which a terminal accesses a network.

Abstract: This application provides a method for transmitting data and a terminal device. The method includes: receiving, by a terminal device, first control information transmitted by a network device, where the first control information includes identity information of at least one uplink beam, and the first control information is used to indicate whether the at least one uplink beam is valid; and if the first control information indicates that the at least one uplink beam is valid, determining, by the terminal device, that the at least one uplink beam is valid in preset duration; or if the first control information indicates that the at least one uplink beam is invalid, skipping, by the terminal device, transmitting data in the at least one uplink beam.

Abstract: An information processing method and apparatus. The method includes: a terminal side device sends uplink information through a PUSCH; determines a monitoring identifier of a downlink control channel based on PUSCH resource information of a resource occupied by the PUSCH; further monitors the downlink control channel based on the monitoring identifier, where the downlink control channel carries information used to indicate a resource location of a PDSCH; and then receives the PDSCH at the resource location of the PDSCH, where the PDSCH carries a response message. In this way, the terminal side device avoids blindly monitoring, based on the monitoring identifier, a downlink control channel that does not belong to the terminal side device and parsing a corresponding response message, and power consumption of the terminal side device is reduced.

Abstract: A reference time determining method and apparatus are provided, to prevent aberrations in a control instruction execution time caused by inconsistency between a reference time of a terminal and a reference time of a control device in the conventional technology. In this application, the terminal may receive a plurality of pieces of time reference information sent by the network device. When the terminal receives indication information from the network device, the terminal may select, based on the indication information, one piece of time reference information from the plurality of pieces of time reference information as first time reference information. The indication information indicates the first time reference information. After determining the first time reference information, the terminal may determine the reference time of the terminal based on the first time reference information.

Abstract: This application provides a communication method and an apparatus for Ethernet data. Embodiments of this application provide a new radio network temporary identifier RNTI (for example, a first RNTI), and the first RNTI is an RNTI for an Ethernet packet. The method includes: A terminal device receives, from a network device, downlink control information DCI scrambled by using the first RNTI, and receives the Ethernet packet from the network device on a time-frequency resource indicated by the DCI.