Abstract: Embodiments of the present application are directed to a method and apparatus for reporting time information of conditional handover (CHO). In an embodiment of the present application, the method includes: receiving configuration information on CHO, and transmitting time information of CHO in response to at least one failure that occurs during a CHO procedure.

Abstract: A communication method and a related apparatus for data transmission in vehicle-to-everything (V2X) communication, the apparatus including at least one processor and a non-transitory computer-readable memory storing a program to be executed by the at least one processor, the program including instructions for obtaining a first parameter value of an uplink, obtaining a second parameter value of a sidelink, and transmitting, according to a comparison between the first parameter value and the second parameter value, at least one of an uplink media access control protocol data unit or a sidelink media access control protocol data unit, where the uplink is a wireless communications link from the apparatus to a network device, and where the sidelink is a wireless direct transmission link between the apparatus and another terminal device.

Abstract: Example methods and apparatus for application of a computing bearer is described. One example method includes establishing a first bearer and a second bearer by a first communication apparatus, where the first bearer is a computing bearer between the first communication apparatus and a second communication apparatus, and the second bearer is a computing bearer between the first communication apparatus and a first application. The first communication apparatus receives first data from the second communication apparatus over the first bearer, and forwards the first data over the second bearer. Additionally or alternatively, the first communication apparatus receives second data over the second bearer, and forwards the second data to the second communication apparatus over the first bearer.

Abstract: A method may be performed through the following steps: a first communication apparatus sends a data edge protocol (DEP) session establishment request message to a second communication apparatus, where the DEP session establishment request message is used to request to establish a DEP session between the first communication apparatus and a computing power, the DEP session is used to transmit data of a first application, the first communication apparatus, the second communication apparatus, and the computing power all have a function of a DEP layer, the DEP layer is located below a third layer of a wireless network protocol layer, and the DEP session is located at the DEP layer. The first communication apparatus receives configuration information of the DEP session from the second communication apparatus.

Abstract: A data transmission method to implement flexible switching of data transmission between different interfaces, includes: A first terminal obtains a quality of service flow identifier of the first terminal and a QoS parameter of a quality of service flow, where there is a correspondence between the quality of service flow identifier and the QoS parameter of the quality of service flow, and determines, based on the QoS parameter, a logical channel used by the quality of service flow on a PC5 interface. The first terminal maps the quality of service flow to the determined logical channel, and sends the quality of service flow to the second terminal.

Abstract: A core network delivers two sets of quality of service (QoS) parameters to an access network device. The access network device selects one of the two sets of QoS parameters, and indicates the selected set of QoS parameters to the core network. An air interface rate required by the set of QoS parameters can be supported by a radio access network (RAN). In this way, a QoS parameter applied to a related user equipment (UE), a related bearer, a related packet data unit (PDU) session, or a related QoS flow can be effectively determined, and a hardware capability of an LTE base station does not need to be upgraded. In addition, the core network may set, based on a QoS parameter selected by a RAN side, a corresponding QoS management policy such as a rate adjustment policy, to facilitate data transmission between UE and the core network.

Abstract: The present disclosure relates to connection reestablishment methods and apparatus. In one example method, when a handover fails, a terminal reverts back to a source configuration, and obtains a selected cell. The terminal sends a connection reestablishment request to a selected radio access network device. The terminal receives a first message from the selected radio access network device, where the first message includes indication information used to indicate to derive an access network key based on a core network key. The terminal obtains a first core network key based on the indication information, and derives a first access network key based on the first core network key. The terminal communicates with the selected radio access network device by using the first access network key.

Abstract: An IAB node switching method is applied to a relay system, and the relay system includes a donor base station and a first IAB node. The donor base station provides a gateway function for the first IAB node. The first IAB node receives a first BWP configuration from the donor base station, where the first BWP configuration includes a BWP configuration of a second IAB node, and the second IAB node is a candidate upper-level node of the first IAB node. The first IAB node switches to the second IAB node. According to the IAB node switching method, the IAB node, and the donor base station that are provided in this application, service availability of an IAB node is ensured when the IAB node has a plurality of upper-level nodes.

Abstract: This application provides example communication methods and example communications apparatuses, to implement bearer mapping for user data transmission. One example method is applied to a wireless backhaul system having a first network and a second network of different RATs. The example method includes obtaining, by a first management network element in the wireless backhaul system, information about a first radio bearer of a terminal in the first network, where the information about the first radio bearer is used to indicate the first radio bearer. The first management network element can then determine a mapping relationship between the first radio bearer and a second radio bearer based on the information about the first radio bearer, where the second radio bearer is a radio bearer of the first device in the second network.

Abstract: This application discloses communications methods, apparatuses, and systems. In one implementation, a method includes: performing a function of a control-plane protocol layer, wherein the control-plane protocol layer comprises a first protocol layer of the network node corresponding to a first protocol layer of a relay node, the first protocol layer is on an interface between the network node and the relay node, and the network node is a donor base station or a centralized unit of a donor base station; and sending, from the first protocol layer of the network node, a first message to the first protocol layer of the relay node, wherein the first protocol layer of the network node and the first protocol layer of the relay node are F1 application protocol layers, and the first message is a F1AP message that comprises one or more of context management information of a terminal device served by the relay node or a radio resource control message of the terminal device.

Abstract: Embodiments of this application disclose an access control method, a communications device, and a base station, so that a UE determines, based on a UAC parameter determined based on a CE-level, whether access of the UE is barred, so that a probability that a UE with a large resource consumption amount accesses a communications network system can be controlled. The method in the embodiments of this application includes: determining, by user equipment UE based on a first coverage enhancement level CE-level, a first unified access control UAC parameter corresponding to the first CE-level; and determining, by the UE based on the first UAC parameter, whether access of the UE is barred.

Abstract: A communication method and apparatus communicating to a network architecture are provided. The network architecture includes a control unit and one or more service units. The control unit is connected to the one or more service units. The method implemented by a terminal device includes: receiving a first message from the control unit, wherein the first message includes common control information of the one or more service units; and establishing a data transmission channel with a first service unit in the one or more service units based on the first message, wherein the data transmission channel is used to transmit data between the terminal device and the first service unit. According to this application, complete decoupling of a control plane and a user plane may be implemented, thus the control plane and the user plane can be transmitted on different carriers, thereby improving flexibility of communicating in different scenarios.

Abstract: Embodiments of this application provide a wireless communication method, apparatus, and system. The method includes: receiving, by a first entity, a first message sent by a second entity, where the first message carries configuration information of a sub-task, and the first entity and the second entity are entities in a radio access network; sending the configuration information of the sub-task to a terminal device; receiving a task execution result fed back by the terminal device; and sending the task execution result to the second entity. Because the sub-task is executed by the terminal device, a problem of a single communication link in a related technology can be avoided, to implement technical effects of communication flexibility and diversity. In addition, different sub-tasks are executed by different terminal devices, so that efficiency of completing a target task can be improved, and resources are appropriately used.

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: Embodiments of this application disclose a communication method and a communications apparatus, to resolve a problem that a terminal cannot quickly resume a communication connection to a secondary node. The method includes: receiving, by a first master node, a first message from a terminal, where the first message is used to request state transition of the terminal from a third mode to a connected mode; determining, by the first master node, a secondary node that serves the terminal; obtaining, by the first master node, a first security parameter, where the first security parameter is used to derive a security key used for communication between the terminal and the secondary node that serves the terminal; obtaining, by the first master node, SCG configuration information; and sending, by the first master node, a second message to the terminal, where the second message includes the first security parameter and the SCG configuration information.

Abstract: A radio access network device receives first remapping information from a core network device, where the first remapping information includes an identifier of a first network slice and an identifier of at least one second network slice, and the first remapping information indicates that PDU sessions, in the first network slice, of a plurality of terminal devices connected to the radio access network device are to be remapped to one of the at least one second network slice; and the radio access network device sends first indication information to the core network device, where the first indication information includes the identifier of the second network slice, and the first indication information indicates the core network device to remap the PDU sessions, in the first network slice, of the terminal devices to the second network slice.

Abstract: Embodiments of this application provide a node handover method and an apparatus. A source secondary node receives first handover information and determines to perform an uninterrupted node handover. The source secondary node performs, in a process of the uninterrupted node handover, first processing on first data received by the source secondary node, to obtain second data, and sends the second data to a terminal device. The source secondary node performs second processing on the first data to obtain third data in the process of the uninterrupted node handover, and sends fourth data to the terminal device via a target secondary node. According to some embodiments provided in this application, a communication delay of the terminal device can be reduced, and user experience of the terminal device can be improved.

Abstract: Embodiments of this application provide a communication method and a related device. The method includes: a network device firstly sends the configuration information to the user equipment, and then the user equipment obtains a first condition based on the configuration information. Then, in a measurement process, the user equipment sends a measurement report to the network device when determining that the first condition is currently met. After obtaining the measurement report, the network device indicates at least one candidate relay device to the user equipment by using a path switch command. The user equipment determines one relay device in the at least one candidate relay device, and communicates with the network device or another network device through the determined relay device.

Abstract: Embodiments of this application disclose a communication method and a related apparatus, so that remote UE can communicate with a network via relay UE that resumes or establishes a radio resource control RRC connection, to ensure communication quality of the remote UE. The method includes: A first access network device receives a first message sent by first UE, where the first message includes a first identifier of second UE, and the first identifier is an identifier of the second UE in an RRC inactive state or an RRC idle state. The first access network device pages the second UE based on the first message. The first access network device sends a second message to the first UE, where the second message indicates the first UE to perform path switching, the second message includes a second identifier of the second UE.

Abstract: A relay device first receives a data packet from a network device through a first link, and sends the data packet to user equipment through a second link. A protocol stack of the relay device consists of a physical layer, a media access control layer, and a segmentation function or a resegmentation function of a radio link control layer; a protocol stack of the relay device consists of a physical layer, a media access control layer, a segmentation function or a resegmentation function of a radio link control layer, and an adaptation layer; or a protocol stack of the relay device consists of a physical layer and a hybrid automatic repeat request function of a media access control layer. The first link is a wireless communication link between the network device and the relay device, and the second link is a wireless direct communication link between the relay device and the user equipment.