Abstract: A communication method and an apparatus, the method including determining, by a first terminal, first hybrid automatic repeat request (HARQ) information associated with a first sidelink grant, where the first sidelink grant is associated with carrying data between the first terminal and a second terminal, and where the first HARQ information comprises a first HARQ process identifier associated with the first sidelink grant, and sending, by the first terminal, the first HARQ information to the second terminal through a sidelink, where the sidelink is a direct wireless communication link between the first terminal and the second terminal.

Abstract: A method and an apparatus for controlling a timer are disclosed. In the method, after user equipment activates a first bandwidth part in response to a first message, the user equipment controls a target timer to perform timing based on a unit time length of a second bandwidth part to optimize the timer in a BWP scenario.

Abstract: A communication method and apparatus are applied to fields such as V2X, vehicle to everything, an intelligent connected vehicle, assisted driving, and intelligent driving. The method includes: a first terminal device determines a first new data indicator NDI based on an identifier of a first destination address and an identifier of a first hybrid automatic repeat request HARQ process, where the first NDI is included in first sidelink control information SCI, and the first SCI is used to schedule first data; and the first terminal device sends, through a sidelink, the first SCI and/or the first data to a second terminal device.

Abstract: A reflective quality of service QoS method and an apparatus are provided, to implement uplink layered QoS, and implement more refined uplink QoS management. The method includes: A terminal device determines to enable a first reflective QoS manner, and determines a first rule in the first reflective QoS manner. The first rule includes a QoS rule and/or a QoS flow to data radio bearer DRB mapping rule. The terminal device identifies classification information of a packet in the first reflective QoS manner, where the classification information is for distinguishing between packets in a same internet protocol IP flow.

Abstract: A communication method and apparatus includes: A communication device determines at least one first packet in first duration. The at least one first packet belongs to a same PDU set, the first duration is determined based on a first interval or burst duration, the first interval is a time interval at which the communication device obtains two adjacent PDU sets in time domain, and the burst duration is duration of one PDU set. Then, the communication device sends the at least one first packet.

Abstract: Example communication methods and apparatus are described. One example method includes determining by a terminal that a first transmission resource conflicts with a second transmission resource. The first transmission resource is a resource used by the terminal to send first information to a first network side device. The first network side device corresponds to a first user identity supported by the terminal. The second transmission resource is a resource used by the terminal to send second information to a second network side device. The second network side device corresponds to a second user identity supported by the terminal. The terminal sends the first information on the first transmission resource. The terminal cancels sending the second information on the second transmission resource. Alternatively, the terminal sends the second information on a third transmission resource, where the third transmission resource is a resource before or after the second transmission resource.

Abstract: Example communication methods and communication apparatus are described. In one example method, a terminal device obtains first information, where the first information is different from second information, the first information is used to determine a start time of a first timer in a first hyper system frame, and the second information is used to determine a start time of a first timer in a second hyper system frame. The terminal device determines, based on the first information and a first parameter, the start time of the first timer in the first hyper system frame, where the first parameter is drx-StartOffset, and the first timer is a discontinuous reception on-duration time.

Abstract: This application relates to the field of communication technologies, and discloses a communication method and apparatus. The method includes: After registering with a first network and a second network, a terminal device may send first information to a network device in the first network or a network device in the second network, so that the network device in the first network or the network device in the second network can learn that the terminal device is to enter a first transmission manner or has entered the first transmission manner. The first transmission manner includes: The terminal device concurrently processes an uplink service of the first network and an uplink service of the second network.

Abstract: Embodiments of this application provide a communication method and apparatus. The method includes: a terminal device receives, from a network device, a fifth indication information indicating at least one feature priority of a target cell. The fifth indication information is comprised in at least one of a handover command or a reconfiguration-with-synchronization parameter. The terminal device selects at least one random access resource based on the at least one feature priority of the target cell.

Abstract: Example cross-link interference (CLI) measurement configuration methods and apparatus are described. In one example method, a first network device receives, from a second network device, a first message that indicates information about a CLI measurement. The first network device configures the CLI measurement for a terminal device based on the first message.

Abstract: A communication method includes establishing, by a communication device, a first connection to a first network device and a second connection to a second network device. The first connection and the second connection are used to process a first service. The method also includes sending, by the communication device, first information to the first network device based on the communication device determining that a second service needs to be processed. The second service is different from the first service. The first information is used to request to disable the first connection or the second connection, or the first information is used to indicate the communication device to establish a third connection to a third network device. The third connection is used to process the second service.

Abstract: This application discloses a HARQ process control method and an apparatus, and relates to the field of communications technologies. The method includes: A first terminal apparatus determines that a TB transmitted in a first HARQ process is a first TB transmitted for the last time or a newly transmitted TB; and stops a first timer. Further, the first terminal apparatus sends, to a second terminal apparatus, first indication information used to indicate that the TB transmitted in the first HARQ process is a newly transmitted TB. The second terminal apparatus receives the first indication information, and stops a second timer based on the first indication information.

Abstract: A method for monitoring a physical downlink control channel, a communications device, and a network device, the method including monitoring, by a communications device based on the wake-up signal and at least one bandwidth part (BWP), at least one physical downlink control channel, wherein the at least one BWP corresponds to the wake-up signal, and the at least one physical downlink control channel is a physical downlink control channel of at least one BWP indicated by the at least one wake-up signal.

Abstract: This application discloses a TSN time synchronization method and apparatus. One example method includes: a first apparatus receives a first TSN time synchronization message from a second apparatus; the first apparatus determines that the first TSN time synchronization message does not carry a first time, where the first time is a system time of a wireless communication system when the second apparatus receives the first TSN time synchronization message; and the first apparatus locally obtains a bridge residence time, write the bridge residence time into the first TSN time synchronization message, and send the first TSN time synchronization message.

Abstract: A method may be applied to a terminal device that supports a first communication system and a second communication system. The first communication system corresponds to a first user identity, and the second communication system corresponds to a second user identity. The method includes: a terminal device receiving a first message in a first communication system, where the first message indicates to perform DAPS handover between a source cell and a target cell in the first communication system. In response to determining that a capability available for the first communication system cannot support the DAPS handover, the terminal device suspends communication with the source cell in the first communication system, and is handed over to the target cell in the first communication system.

Abstract: Embodiments of this application provide a resource preemption method, an apparatus, and a system, to reduce a quantity of times of frequent resource preemption, and improve resource security. In one example, a first terminal device obtains a first time interval and a second time interval, and preempts or determines not to preempt a first resource according to a first preset rule. The first resource is a resource reserved by a second terminal device or a resource reserved for a first service to be transmitted by the first terminal device. The first time interval is a time interval related to the first resource. The second time interval is used to indicate a preemption forbidden time. The first preset rule is determined based on the first time interval and the second time interval.

Abstract: A communication method and a wireless communications apparatus are provided. The method includes sending, by the wireless communications apparatus, a first request message to a first cell, where the first request message is used to request to release a wireless connection between a first user and the first cell, receiving, by the wireless communications apparatus, a response message from the first cell, where the response message is used to respond to the first request message, and sending, by the wireless communications apparatus, a second request message to a second cell, where the second request message is used to request to establish a wireless connection between a second user and the second cell.

Abstract: This application provides a communication method and apparatus. The method may be applied to a small data transmission procedure. The method includes: A terminal device receives first indication information from a network device, where the first indication information indicates timing advance information. The terminal device performs the following operations based on a running state of at least one of a first time alignment timer and a second time alignment timer: applying the first indication information or ignoring the first indication information.

Abstract: Embodiments of the present invention provide a data transmission method and an apparatus, and relate to the field of communications technologies. The method includes: obtaining, by a terminal, first indication information of an uplink resource used for sending uplink data or uplink control information. The first indication information of the uplink resource includes information used to indicate whether the uplink resource is a type 1 uplink resource or a type 2 uplink resource. The type 1 uplink resource includes at least one subcarrier in a frequency domain, where when a subcarrier quantity is greater than or equal to 2, subcarriers are orthogonal to each other, and a subcarrier spacing is 3.75 kHz; or the type 1 uplink resource includes at least one sub-channel in a frequency domain, where a bandwidth of each sub-channel is 3.75 kHz.

Abstract: A communication method and apparatus are provided. The method may be applied to a terminal and a network device. In the method, the network device first sends first indication information before sending a paging message, where the first indication information is used to indicate whether at least two terminals in an RRC_IDLE state or an RRC_INACTIVE state need to receive the paging message. In this way, after each of the at least two terminals receives the first indication information, the terminal may determine, based on the first indication information, whether the terminal needs to receive the paging message. If determining that the terminal needs to receive the paging message, the terminal may detect and receive the paging message on a corresponding time-frequency resource after the network device sends the paging message.