The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. A method performed by a first node in a wireless communication system, including receiving, from a second node, downlink user data through a first radio bearer, the downlink user data including multicast service data; transmitting, to at least one UE, the downlink user data through a second radio bearer; and transmitting, to the second node, a downlink data delivery status including PDCP sequence number information, wherein the PDCP sequence number information includes a higher PDCP sequence number between a highest PDCP sequence number successfully delivered in sequence associated with a first transmission mode and a highest PDCP sequence number transmitted to lower layers associated with a second transmission mode.

A plurality of ground station devices perform wireless communication processing for a side of a terminal station; and a single or a plurality of mobile station devices perform wireless communication processing for a side of a base station, so as to make a wireless connection in parallel with a plurality of the ground station devices having a line of sight.

A bridge device is connected with each of the plurality of ground station devices and a communication network and performs: obtaining connection configuration data indicating a connection configuration between each of the ground station devices and the mobile station devices from the ground station devices; transferring, upon receipt of from the communication network, data whose transmission destination is any of the mobile station devices, the received data to any of the ground station devices based on the obtained connection configuration data; and sending out, upon receipt of data from the ground station devices, the received data to the communication network.

A communication control method includes broadcasting, by a first relay node configured to manage a cell, relay node support information indicating that the cell supports the relay node, communicating, by the first relay node, a failure-related notification indicating that a failure has occurred in a backhaul link, and stopping, by the first relay node, the broadcasting of the relay node support information according to the communication of the failure-related notification.

A self-backhaul network migration method includes: receiving, by a first IAB network node, network migration commands, where the network migration commands include a first network migration command that is used to instruct the first IAB network node to migrate from a source CU network to a target CU network, and a second network migration command that is used to instruct other network nodes to migrate from the source CU network to the target CU network, the other network nodes being downstream network nodes of the first IAB network node in a migrating IAB network; and sending, after the first IAB network node migrates to the target CU network according to the first network migration command, the second network migration command to a child IAB network node of the first IAB network node or UE served by the first IAB network node.

Aspects of the subject disclosure may include, for example, performing resource coordination to support integrated access and backhaul (IAB) link migration events in 5G new radio (NR) networks. Migration events may be a result of any factor including handovers, secondary cell changes, or radio link failures. Coordination may be achieved by an IAB node configuring or reconfiguring a distributed unit (DU) to be compatible with a backhaul link of a second IAB node. Other embodiments are disclosed.

An operation method of a transmission and reception point (TRP) constituting a base station may include: receiving, from a first distributed unit (DU) and through a first physical layer, scheduling information of a first terminal and first data to be transmitted to the first terminal; receiving, from a second DU and through the first physical layer, scheduling information of a second terminal to be provided to the second terminal and second data to be transmitted to the second terminal; and simultaneously transmitting the first data and the second data to the first terminal and the second terminal, respectively, through a second physical layer based on the scheduling information of the first terminal and the scheduling information of the second terminal.

A control apparatus includes a control section that determines, for each terminal, a method for a coordinated operation performed between a plurality of radio apparatuses for signal transmission to the terminal, and a transmission section that outputs control information on the method determined.

The technology of this application relates to a mobility management method. The method includes a first network device receiving a first message, where the first message includes information that indicates a target cell. The first network device determines, based on at least one of the following information, whether a terminal device is allowed to access the target cell: context information of the terminal device and resource status information of the target cell. It is determined, by using resource status information of a plurality of cells and/or the context information of the terminal device, whether the terminal device is allowed to access a cell, so that determining can be performed before the terminal device accesses the target cell, to improve an access success rate, avoid a resource waste, and implement centralized control on the plurality of cells.

A data offloading method for vehicle edge computing is provided. The data offloading method may include transmitting input data to a road side unit (RSU) closest to a vehicle through an uplink, and receiving output data processed by the RSU closest to the vehicle through a downlink. The transmitting of the input data to the RSU closest to the vehicle through the uplink may include comparing a location of the vehicle with locations of candidate RSUs, and the transmitting of the input data to the RSU closest to the vehicle through the uplink and receiving of the output data processed by the RSU closest to the vehicle through the downlink may be performed in a state of occupying at least one time frame among time frames allocated for a communication between the vehicle and the candidate RSUs.

Disclosed are a cell global identifier configuration method and apparatus, and a storage medium, for use in solving the technical problem present in the prior art that the configuration of global identifiers for mobile DUs is complex in operation and error prone. The method comprises: a target CU configuring a first global identifier for a cell managed by a DU, the first global identifier being a global identifier used by the cell after the DU migrates to the target CU; and sending the first global identifier to the DU.