Abstract: This application relates to the field of communication technologies, and discloses a communication method and an apparatus. The method includes: A relay terminal receives first identifier information from a remote terminal, where when the remote terminal is in an idle state, the first identifier information includes an S-TMSI of the remote terminal, and when the remote terminal is in an inactive state, the first identifier information includes an I-RNTI of the remote terminal. When the relay terminal obtains, through monitoring, a first paging message including the first identifier information, sending, by the relay terminal, the first paging message to the remote terminal or sending first indication information to the remote terminal, where the first indication information indicates that the remote terminal is paged.

Abstract: This application provides a communication method and a communication apparatus. In the method, before sending a first message or when sending a first message, a second network device sends indication information to a first network device, so that the first network device can determine, based on the indication information, a configuration of a first mapping relationship used to transmit the first message. In this way, the first message is correctly transmitted, so that a first terminal device reestablishes or resumes a first connection by using a second terminal device, and correctly accesses a corresponding access network device.

Abstract: This application discloses a communication method and a communication apparatus. The method includes: sending a first message, where the first message includes first indication information, and the first indication information indicates to configure multi-path transmission for a first radio bearer of first user equipment and indicates that the first radio bearer is associated with a direct link and an indirect link; and receiving a second message, where the second message includes second indication information, the second indication information indicates that a primary path corresponding to the first radio bearer is included in a first link, and the first link is a direct link or an indirect link associated with the first radio bearer.

Abstract: Disclosed are a communication method and apparatus. A relay terminal device receives first configuration information from a network device. The first configuration information includes a first local identifier and a first identifier, the first local identifier is an identifier that is allocated by the network device and that identifies a remote terminal device, the first identifier is an identifier that is allocated by the remote terminal device and that identifies the remote terminal device, and the remote terminal device communicates with the network device via the relay terminal device. The relay terminal device receives a first data packet based on the first identifier, and processes the first data packet based on the first configuration information.

Abstract: Embodiments of this application provide a communication method, a communication device, a computer-readable storage medium, and a computer program product. The communication method includes: determining first information, where the first information includes first congestion indication information, the first congestion indication information indicates congestion information of a relay terminal device, and the relay terminal device provides a relay service between a remote terminal device and a network device; and sending the first information to the network device. In this manner, congestion control related information reported by the relay terminal device can be directly obtained in a data transmission process, so that corresponding configuration update or traffic control is performed based on the reported congestion indication information, to avoid or reduce congestion on the relay terminal device.

Abstract: Embodiments of this application disclose a link configuration method, a communication apparatus, and a storage medium. The method includes: sending first indication information to one or more relay terminals; receiving an identifier of one or more relay terminals from the one or more relay terminals; sending first request information to an access network device, where the first request information includes the identifier of the one or more relay terminals, and the first request information is for requesting the access network device to configure a relay-based indirect link for a remote terminal; and receiving first configuration information from the access network device, where the first configuration information is used to configure an indirect link for a remote terminal over which relay is performed via the target relay terminal, and the target relay terminal is determined by the access network device from the one or more relay terminals.

Abstract: A communication method and apparatus are provided, including a first terminal device determines a first identifier based on sidelink radio bearer SLRB configuration information, where the SLRB configuration information indicates an SLRB between the first terminal device and a second terminal device, the first identifier is a radio bearer identifier, and the radio bearer identifier indicates a radio bearer between the first terminal device and the second terminal device. The first terminal device sends first information to a relay terminal device, and sends the first information to the second terminal device via the relay terminal device, where the first information includes one or more first identifiers and SLRB configuration information associated with the first identifier, and different first identifiers are associated with different SLRB configuration information.

Abstract: This application provides a communication method and a communication apparatus. The method includes: A first network unit sends first information to a second network unit, where the first information includes first indication information, and the first indication information indicates a configuration type of a first radio bearer of a remote terminal device. In this way, the second network unit may determine, based on the configuration type of the first radio bearer, whether to provide a configuration of a first radio link control (RLC) bearer corresponding to the first radio bearer on a link between the remote terminal device and the second network unit, to provide correct configuration information of the radio bearer for the remote terminal device. This helps improve data transmission efficiency of the radio bearer, improve radio resource utilization of a mobile network system, and improve system performance.

Abstract: A communication method is performed by a first access network device including receiving a first message from a second access network device, wherein the first message comprises a first candidate information list or a second candidate information list, the first candidate information list comprises information about candidate relay terminals, the candidate relay terminals are located in candidate cells served by the first access network device, and the second candidate information list comprises information about candidate cells served by the first access network device. The method further includes determining first configuration information based on the first candidate information list or the second candidate information list.

Abstract: This application provides example communication methods, communication apparatuses, and communication systems, so that when a second device provides a relay service for communication between a first device and a third device, the second device establishes a radio bearer of a first link based on configuration information that is of the first link and that is sent by the first device, and data subsequently transmitted on the radio bearer can meet a quality of service (QoS) requirement corresponding to QoS information of the first link. In one example method, QoS information of a first link is obtained, where the first link is a link between a first and second device. Configuration information of the first link is then sent to the second device based on the QoS information of the first link for establishing, on the first link, a radio bearer that meets the QoS information.

Abstract: Example communication methods and apparatus are described. In one example method, a remote terminal device receives information about a relay terminal device through an interface between the remote terminal device and an access network device. Then, the remote terminal device sends indication information to the relay terminal device, where the indication information triggers the relay terminal device to enter a radio resource control (RRC) connected state, so that the relay terminal device can provide a relay service for the remote terminal device, thereby ensuring that a plurality of paths between the remote terminal device and the access network device are configured for the remote terminal device.

Abstract: Embodiments of this application disclose a communication method, a communication apparatus, and a computer-readable storage medium. The method includes: A third terminal device receives a first message from a first terminal device, where the first message carries a first identifier, and the first identifier indicates a second terminal device. The third terminal device sends a second message to the second terminal device based on the first message. According to the method described in this application, the third terminal device can determine a specific terminal device to which a currently received message should be forwarded, to ensure normal communication in a U2U relay scenario.

Abstract: This application provides a communication method and apparatus. Before a source terminal establishes a unicast connection to a first target terminal, the source terminal allocates a first identifier to the first target terminal based on a request of a relay terminal, where a bit length of the first identifier is less than or equal to 8 bits. The source terminal sends first data to the first target terminal, where the first identifier is configured in the first data. The relay terminal forwards the first data to the first target terminal for the source terminal based on the first identifier. In the foregoing solutions, the source terminal may send a message to a specific target terminal based on the first identifier and the bit length of the first identifier is less than or equal to 8 bits.

Abstract: Embodiments of this application provide a data transmission method, an apparatus, and a system. The method may include: A first device sends information about a transmission resource and first information to a second device, where the transmission resource includes a first resource and a second resource, the first resource is used by the second device to receive a first service from the first device, the second resource is used by a third device to receive the first service from the second device, the first information indicates that the second resource is used to transmit the first service, and the first service is a service of the third device. In this way, it can reduce a data transmission delay, and improve user experience.

Abstract: This application relates to a communication method and device. A remote terminal device receives a first data packet from a relay terminal device by using an SRB1. The first data packet includes a first message and an SRAP header. The remote terminal device removes the SRAP header via an SRAP entity to obtain configuration information. The SRAP entity is determined before the SRAP header is removed. The remote terminal device configures the SRAP entity based on the configuration information. The remote terminal device may predetermine the SRAP entity.

Abstract: A communication method, apparatus and storage medium are provided to resolve conflicts between different configurations of a terminal device. A first communication apparatus receives a first message from a network device. The first message includes first configuration information. The first communication apparatus receives or sends a discovery message and performs measurement based on the first configuration information by receiving or sending the discovery message. The measurement is measurement on signal quality of a sidelink between the first communication apparatus and a second communication apparatus. The first communication apparatus sends measurement information of the measurement to the network device.

Abstract: This application provides example communication methods, apparatuses, and non-transitory memory storage mediums. An example method includes receiving a first broadcast message sent by a second terminal device. The first broadcast message includes first cell information of the second terminal device. The example method further includes receiving a third message from a first network device. The third message comprises second cell information of the second terminal device, and the third message indicates a first terminal device to switch from a relay device of the first terminal device to the second terminal device. The example method further includes, when the first cell information is inconsistent with the second cell information, determining that the switch fails.

Abstract: This application provides a communication method and device, and may be applied to U2N relay communication. In the method, a source base station sends a handover request to a target base station, where the handover request includes an identifier of relay UE, UE context information of the relay UE, an identifier of remote UE, and UE context information of the remote UE. The source base station receives a handover response from the target base station, where the handover response includes radio bearer configuration information that is of a candidate target cell and that is configured for the relay UE, and radio bearer configuration information that is of the candidate target cell and that is configured for the remote UE.

Abstract: This disclosure provides a data transmission method and a communication apparatus. The method includes: A first device receives first scheduling indication information and second scheduling indication information from a second device, where the first scheduling indication information indicates a first transmission resource from the second device to the first device, and the second scheduling indication information indicates a second transmission resource from the first device to a third device. The first device receives transmission data from the second device on the first transmission resource. When the transmission data is successfully received by the first device, the first device sends the transmission data to the third device on the second transmission resource.

Abstract: A communication method includes receiving, by a relay terminal device, a first data packet from a first device, starting a first timer corresponding to the first data packet, and discarding the first data packet in response to the first timer expiring. The first data packet is to be forwarded to a second device. The relay terminal device is configured to provide a relay service for the second device.