Abstract: A multi-scale aggregation pattern analysis method for a complex traffic network is provided, which belongs to the field of the highway traffic network. Firstly, an adjacency matrix, a position attribute matrix, a distance weight matrix, a road grade matrix, and a time-phased traffic congestion degree matrix of a highway traffic network are calculated; secondly, a weight influence factor of the road network is incorporated based on a PageRank algorithm to determine order of critical nodes; finally, a two-dimensional decision diagram is drawn by two indicators: order of critical nodes and a shortest path distance. A new weighting matrix which accords with the actual situation of the road network is obtained by incorporating a position weight matrix, a distance weight matrix, a road grade weight matrix and a dynamic traffic congestion degree weight matrix based on a similarity matrix of the spectral clustering.

Abstract: This application provides a communication method, apparatus, and system. The communication method includes: A first access network device (an indoor base station) obtains first information, and then sends the first information to a core network device through a control plane of a next generation (NG) interface or a general packet radio service tunnelling protocol for the user plane (GTP-U) tunnel between the first access network device and the core network device. The first information transmitted on the control plane of the NG interface or the GTP-U tunnel needs to pass through a route of a second access network device (an outdoor base station). According to this method, the indoor base station may perform NG interface-based communication with the core network device via the outdoor base station, to provide a better home network service.

Abstract: This application provides a relay communication method, an apparatus, and a system. The method includes: An access network device receives first information from a terminal device, where the first information includes an identifier of a first relay device; the access network device receives second information from a core network element, where the second information includes information of a relay device that the terminal device is allowed to access; and the access network device determines, based on the first information and the second information, whether the terminal device is allowed to access the first relay device.

Abstract: Embodiments of the present invention disclose a communication method and a related product. A method implemented on an access network side includes: sending, by an access network device, indication information to user equipment, where the indication information is used to indicate a manner of receiving multicast service data, and the receiving manner includes a unicast manner and/or a multicast manner; and sending, by the access network device, the multicast service data in the unicast manner and/or the multicast manner indicated by the indication information.

Abstract: In accordance with an embodiment, a communication method applied to a first node includes: receiving first information from a second node, wherein the first information comprises an available space size in a first buffer space of the second node, the first buffer space is for buffering a data packet that is to be transmitted through a first path, the first path is a primary path for transmitting the data packet, and the second node is a next-hop node of the first node on the primary path; and in response to the available space size in the first buffer space being less than or equal to a first threshold, determining to transmit the data packet through a third node, wherein the third node is a next-hop node of the first node on a backup path for transmitting the data packet.

Abstract: The present disclosure relates to methods applied to an integrated access and backhaul (IAB) node. An example method includes receiving configuration information for setup of a distributed unit (DU) part of the IAB node and determining, based on a manner of receiving the configuration information, that a master node of the IAB node or a secondary node of the IAB node is a donor node of the IAB node.

Abstract: This application provides a communication method, apparatus, and system. The method includes: A first node communicates with a first donor node by using a first key, where the first key includes a key used for communication over an air interface and/or a key 1 used for communication over an F1 interface. After the first node receives first information from the first donor node, the first node maintains the first key and a second key in response to the first information, where the second key includes a key used for communication over an air interface between the first node and a second donor node and/or a key 2 used for communication over the F1 interface.

Abstract: Embodiments of this application disclose a communication method, apparatus, and system. The method is applied to a radio access network RAN management network element which is connected to a first integrated access and backhaul IAB donor through a first interface. The first IAB donor is connected to a first IAB node through a wireless backhaul link. The method includes: determining configuration information of the first IAB donor and/or the first IAB node, where the configuration information includes one or more of address information, routing information, and cell information; and sending the configuration information to the first IAB donor. In embodiments of this application, the RAN management network element may simultaneously manage address configurations, routing configurations, and cell configurations of a plurality of IAB donors and IAB nodes in a management range of the plurality of donors.

Abstract: A wireless backhaul method, including: a wireless backhaul device generates a first F1AP message, maps the first F1AP message to a signaling-plane bearer of an LTE Uu interface, and sends the first F1AP message to a primary base station of the wireless backhaul device via the signaling-plane bearer of the LTE Uu interface. The primary base station obtains the first F1AP message via the signaling-plane bearer of the LTE Uu interface, encapsulates the first F1AP message into a first X2AP message, and sends the first X2AP message to a secondary base station of the wireless backhaul device. The secondary base station receives the first X2AP message and obtains the first F1AP message based on the first X2AP message.

Abstract: The present disclosure relates to integrated access and backhaul (IAB) node dual connectivity setup methods and communication apparatus. In one example method, a first IAB node sets up a first F1 interface with a primary donor node of the first IAB node. The first IAB node obtains an internet protocol (IP) address anchored at a secondary donor node connected to the first IAB node and/or configuration information of a serving cell, of the first IAB node, belonging to the secondary donor node. The first IAB node sends, to the secondary donor node, a request for setting up a second F1 interface with the secondary donor node, where the request includes the configuration information of the serving cell, of the first IAB node, belonging to the secondary donor node.

Abstract: A communication method and a communication device. A first donor node generates a first data packet, where the first data packet further includes first information. The first information indicates a donor node to which a destination node of the first data packet belongs, or indicates a network segment to which a destination node of the first data packet belongs, or indicates whether a network segment to which a destination node of the first data packet belongs is a network segment controlled by the first donor node. The first donor node sends the first data packet to the destination node first node.

Abstract: This application provides an information transmission method and an apparatus. The method includes: A first IAB donor CU determines a type of signaling and/or first QoS information of data, where the first QoS information is used to determine transmission of the data in a second network topology managed by a second IAB donor CU, and the signaling type is used to determine transmission of the signaling in the second network topology; and the first IAB donor CU sends the first QoS information and/or indication information of the signaling type to the second IAB donor CU.

Abstract: This application provides a communication method and an apparatus. UE establishes a connection to a home access gateway by using CPE, the home access gateway sends configuration information of a first link and configuration information of a second link to the CPE, and sends the configuration information of the second link to the UE. The first link is a link between the CPE and the home access gateway, the second link is a link between the CPE and the UE, the configuration information of the first link is used to indicate quality of service QoS information of the first link, and the configuration information of the second link is used to indicate QoS information of the second link. The UE and the CPE ensure, based on respective configuration information, QoS of UE service data transmitted on the first link and the second link.

Abstract: Embodiments of this application provide a wireless backhaul communication processing method and a related device. In the method, after determining to add a secondary access device for a wireless backhaul device, a first network side device sends capability indication information about the wireless backhaul device to the secondary access device, so that the wireless backhaul device establishes a radio link to the secondary access device.

Abstract: This application provides a communication method. In the method, a first node receives a first radio resource control (RRC) reconfiguration message from a first donor node through a second node. After the first node receives the first RRC reconfiguration message from the second node, the first node receives first indication information from the second node. When the first node determines, based on the first indication information, that the first RRC reconfiguration message becomes effective, the first node establishes an RRC connection to a second donor node based on the first RRC reconfiguration message. In the method, the first node and the second node are nodes in a group that performs group handover, the group handover is a cross-donor node group handover, the second node is a head node or the second node is connected to a head node, and the second node is a parent node of the first node.

Abstract: The technology of this application relates to a communication method and apparatus. The method includes receiving first resource configuration information from a target donor node, determining third resource configuration information based on the first resource configuration information and sending the third resource configuration information to a first node. The first resource configuration information includes current resource configuration information of a target cell, the target cell is a cell served by a target parent node, and the target parent node is used by the first node to connect to the target donor node. The third resource configuration information is used for resource configuration of a first cell, and the first cell is a cell served by the first node.

Abstract: In a communication system, a first central unit (CU) of a first donor node determines a first mapping that comprises a route mapping or a bearer mapping. The route mapping is between the downlink data and a downlink transmission path. The bearer mapping is between the downlink data and a downlink transmission bearer. The downlink transmission path includes a transmission path between the first CU and a target node of the downlink data through a second DU of a second donor node. The downlink transmission bearer includes a RLC channel between the second DU and a next-hop node of the second DU. The first CU then sends the first mapping to a second CU of the second donor node, and sends downlink data to the second DU of the second donor node.

Abstract: A multicast service transmission method includes: a management device that receives a first message; the management device based on the first message, instructs a gateway device to send a data packet of the first multicast service to the terminal device or the access network device, or the management device instructs a gateway device to stop sending a data packet of the first multicast service to the terminal device or the access network device.

Abstract: Embodiments of this application relates to a communication method and a related device. In an example, a device receives a first data packet in a first network segment, the first data packet comprises a first backhaul adaptation protocol (BAP) routing identity, and the first BAP routing identity is used for transmission of the first data packet in the first network segment. The device further obtains a first correspondence. In response to determining that the first correspondence comprises the first BAP routing identity in the first data packet, the device determines that the first data packet meets a preset condition. In response to that the first data packet meets the preset condition, the device replaces the first BAP routing identity in the first data packet with a second BAP routing identity according to the first correspondence, to obtain a second data packet.

Abstract: Embodiments of this application provide a wireless communication method and apparatus. The method includes: receiving, by at least two forwarding nodes, a first data packet from a source node, where the first data packet includes service data, forwarding node set information of the first data packet, and destination node information; and a forwarding node set of the first data packet includes the at least two forwarding nodes, and the destination node information is used to identify a destination node set and/or a destination node; and sending, by at least one forwarding node in the at least two forwarding nodes, a second data packet, where the second data packet includes the service data, forwarding node set information of the second data packet, and the destination node information.