Abstract: A load balancing method which includes a first radio access network node that receives load information of a first load type of a second radio access network node, where the first load type includes any one or more of the following: a network slice load, V2X load, and SUL load; and the first radio access network node obtains the load information of the first load type, so that load balancing can be performed based on a load status of a network slice, a load status of a V2X service, or a load status of a UL/SUL.

Abstract: This application provides a communication method and apparatus. The method includes: A first communication device sends first configuration information to a second communication device. The first configuration information includes identifier information used by the first communication device and a configuration of a physical uplink shared channel PUSCH and/or a configuration of a physical downlink control channel PDCCH. The first configuration information is used for communication between the second communication device and an access network device. The first communication device sends first information to the second communication device. The first information is used for the communication between the second communication device and the access network device.

Abstract: A communication method and a related apparatus. The method is applied to a first terminal device, and the first terminal device is a terminal device that uses sidelink discontinuous reception (SL DRX). The method includes: sending a first message to a second terminal device, where the first message includes a first resource set, and the first resource set is used by the second terminal device for sidelink (SL) transmission; and using a resource corresponding to the first resource set as activation time of the SL DRX, or disabling the SL DRX on the resource corresponding to the first resource set; and monitoring sidelink control information (SCI) on the resource corresponding to the first resource set, where the SCI includes SCI from the second terminal device. Embodiments are implemented to avoid impact on quality of communication between terminal devices.

Abstract: The present disclosure relates to communication methods in multi-rat dual connectivity, apparatus, and systems. In one example method, when a packet data convergence protocol sequence number (PDCP SN) length of a bearer is changed, a secondary node (SN) sends a PDCP SN length change indication to a master node (MN).

Abstract: This application relates to the field of communication technologies, and provides a sidelink transmission method and apparatus, to resolve a problem of reliability of sidelink multicast or broadcast data transmission. The method includes: determining, by a communication device, that at least one of the following conditions is met: a first timer corresponding to sidelink discontinuous reception DRX is not running, a second timer corresponding to DRX is not running, or a third timer corresponding to a first sidelink SL process is running; and scheduling, by the communication device, retransmission corresponding to the first SL process, where the first timer, the second timer, and the third timer may be timers related to DRX information, and the third timer may be further a timer related to the SL process.

Abstract: This specification discloses a relay communication method and an apparatus, and relates to the field of communication technologies, to ensure security in a relay user equipment (relay UE) discovery process. The method includes: Second user equipment broadcasts a layer 2 (L2) identifier, and first user equipment receives the L2 identifier of the second user equipment, and reports the L2 identifier of the second user equipment and signal quality of the second user equipment to a first access network device. Alternatively, a radio network temporary identifier (RNTI) of second user equipment is sent to first user equipment through a unicast connection. In a relay UE discovery process, leakage of a UE RNTI is avoided, and security of relay UE is ensured.

Abstract: This application discloses a sidelink (SL) communication method and an apparatus. In this application, the second terminal receives first control information and first data from the first terminal, where a cast type indicated by the first control information is SL groupcast transmission with negative acknowledgement (NACK) only feedback. The second terminal starts a first timer at a specified location after a hybrid automatic repeat request (HARQ) feedback resource corresponding to the first data, where duration of the first timer indicates minimum duration that elapses before SL resource scheduling information used for HARQ retransmission is expected to be received. After the first timer expires, if the second terminal successfully decodes the first data and detects a NACK on the HARQ feedback resource, the second terminal starts a second timerwith duration indicating maximum duration that elapses before the SL resource scheduling information used for HARQ retransmission is received.

Abstract: An information transmission method includes: A terminal device sends first information to a network device, where the first information includes information indicating that a radio link failure occurs between the terminal device and a first cell, or the first information includes information indicating that beam failure recovery occurs between the terminal device and the first cell; and the first information further includes information about a resource; and the network device performs mobility robustness optimization based on the first information.

Abstract: This application provides a communication method and apparatus, for UE to UE (U2U) relay data transmission. In the method, a bearer configuration solution of a first sidelink and a bearer configuration solution of a second sidelink is provided, to meet an end-to-end quality of service requirement of data relay transmission. This increases a transmission distance of a user.

Abstract: A communication method and apparatus, related to the field of communication technologies. The method includes: a first network device sends configuration information of a first communication resource to a first terminal device. The first terminal device may configure the first communication resource based on the received configuration information. The first terminal device may listen to a paging message that is broadcast by the first network device on the first communication resource and that is used for paging a second terminal device, so that the first terminal device in a connected state can listen to a paging message for the second terminal device, and the second terminal device can establish a communication connection to the first network device.

Abstract: Methods and apparatus are provided for data transmission. A remote device determines a sidelink multicast identifier identifying multicast between the remote device and a plurality of relay devices and sends uplink data to the plurality of relay devices in a multicast manner based on the sidelink multicast identifier. The uplink data is data sent by the remote device to a radio access network device. The remote device determines the sidelink multicast identifier, and sends the sidelink multicast identifier to the relay device to transmit the uplink data to the radio access network device based on multicast communication to improve uplink data transmission efficiency.

Abstract: Embodiments of this application provide a wireless communication method, an apparatus, and a system. The method includes: obtaining mode information of a second terminal device, where the mode information indicates a resource scheduling manner of the second terminal device; and sending assistance information to the second terminal device based on the mode information, where the assistance information indicates one or more sets of sidelink transmission resources. Based on this solution, it can reduce resource conflicts or resource wastes, and therefore can properly and effectively allocate the sidelink transmission resource. In this way, sidelink communication efficiency can be improved.

Abstract: This application provides a sidelink carrier management method and apparatus, and a system. The method includes: A first communication apparatus obtains configuration information of a plurality of sidelink (SL) carriers. The first communication apparatus determines at least one SL carrier from the plurality of SL carriers. The first communication apparatus sends a first message to a second communication apparatus, where the first message includes information about the at least one SL carrier. According to the sidelink carrier management method provided in this application, a transmitting end communication apparatus determines at least one SL carrier for a unicast connection, and indicates the at least one SL carrier to a receiving end communication apparatus, to implement instant and effective management of the SL carrier. This improves SL carrier communication efficiency and a system capacity.

Abstract: In a communication configuration method, a first terminal device determines a first message that comprises first information and second information. The first information comprises radio link control (RLC) bearer configuration information of a first sidelink, and the second information comprises RLC bearer configuration information of a second sidelink. The first sidelink is between the first terminal device and a third terminal device, and the second sidelink is between the third terminal device and a second terminal device. The first terminal device then sends the first message to the third terminal device.

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: This application discloses a communication method, a communications apparatus and a communications system, to resolve a problem that a terminal cannot quickly resume a communication connection to a secondary node. The method includes: sending a first message to a first master node to request state transition of a terminal from a third mode to a connected mode; receiving a second message from the first master node, where the second message comprises a first security parameter and SCG configuration information, and completing, based on the first security parameter and the SCG configuration information, a communication connection to the secondary node.

Abstract: This application discloses a routing method and an apparatus. The method and the apparatus may be used in a multi-hop communication scenario, and may also be used in another scenario. Particularly, the method and the apparatus are used for implementing routing between an AN device and remote UE in the multi-hop communication scenario. In the method, a relay terminal on a communication link may determine a transmission object by using route indication information of a data packet, or the route indication information and a target device identifier that are of the data packet, to transmit data carried in the data packet to the transmission object. In the method, routing transmission of the data packet may be guided by using route guide information, to ensure that the routing between the AN device and the remote UE can be implemented in the multi-hop communication scenario.

Abstract: Embodiments of this application provide a sidelink communication method and an apparatus. The method includes: When a first terminal device (a transmitting end) has to-be-sent first data or first signaling, the first terminal device first determines whether the first data or the first signaling supports multicast or broadcast SL DRX. When the first data or the first signaling supports multicast or broadcast SL DRX, the first terminal device obtains an SL resource corresponding to multicast or broadcast SL DRX, and sends the first data or the first signaling by using the SL resource corresponding to multicast or broadcast SL DRX. Therefore, it can be ensured that the receiving end terminal device can successfully receive the first data or the first signaling that supports multicast or broadcast SL DRX, thereby improving SL communication quality.

Abstract: A relay communication method includes receiving, by a first relay device, first indication information from first user equipment. The first indication information indicates the first relay device to receive, through a first unicast connection corresponding to first security, configuration information from the first user equipment. The configuration information is used for a second unicast connection for communication between the first user equipment and second user equipment through the first relay device. The relay communication method also includes receiving, by the first relay device, first configuration information from the first user equipment through the first unicast connection corresponding to the first security. The relay communication method further includes communicating, by the first relay device, with the first user equipment based on the first configuration information through the second unicast connection.

Abstract: A device for automatically removing margins of rubber sealing rings in high-precision includes a vibrating plate, an installation platform, a motor assembly and a core rod, wherein the motor assembly is arranged on the lower part of the installation platform, the core rod is arranged above the motor assembly, the core rod is a metal rod, the top of which is tapered, a clamping apparatus, an auxiliary apparatus and a margin-removing apparatus are arranged beside the core rod, a product-conveying belt and a buffer conveyor belt are arranged on the installation platform, one side of the core rod far away from the product-collecting box is further provided with an air-pumping apparatus and an air-blowing apparatus. A method for automatically removing margins of rubber sealing rings in high-precision includes: automatically positioning, removing outer margins, removing inner margins step-by-step and automatically collecting.