An information transmission method and apparatus are provided. In the method, an entity part of an IAB donor transmits information to a DU, wherein the information is used for instructing the DU to perform link status switching. A storage medium and an electronic apparatus are also provided.

A method and apparatus are disclosed from the perspective of a first User Equipment (UE) in RRC_CONNECTED to request sidelink resources. In one embodiment, the method transmits a first RRC (Radio Resource Control) message to a network node, wherein a presence of a sidelink QoS (Quality of Service) information list in the first RRC message is optional.

A first infrastructure equipment configured to communicate with a core network part of a wireless communications network via a first central unit node communicatively coupled to the core network part, wherein the first central unit node controls a first zone of the wireless communications network. The first infrastructure equipment configured to perform measurements on signals received from one or more of the first central unit node and the one or more of the plurality of other infrastructure equipment, to transmit, to the first central unit node, a measurement report comprising an indication of the measurements performed on the received signals, to receive, from the first central unit node, a command signal comprising an indication that the first infrastructure equipment should communicate with the core network part via a second central unit node communicatively coupled to the core network part instead of the first central unit node.

An apparatus according to an aspect of the present disclosure is a mobile relay station mounted on a vehicle, including: an antenna system capable of transmitting and receiving radio waves both inside and outside the vehicle; and a wireless control station capable of controlling directivity of the antenna system and having a function of switching between a first relay mode and a second relay mode described below, wherein the wireless control station switches the first and second relay modes on or off based on predetermined control information. First relay mode: mode for relaying communication between a wireless communication device outside the vehicle and a wireless communication device inside the vehicle. Second relay mode: mode for relaying communication between a wireless communication device outside the vehicle and another wireless communication device outside the vehicle.

This application provides a link state switching method and a communications device. The method includes: switching between a first link state and a second link state based on a first guard period, where the first link state and the second link state are link states of an integrated access backhaul IAB node in different transmission modes.

An initial access method of an integrated access and backhaul (IAB) node in a wireless communication system and an apparatus using the method are provided. The method includes: receiving, from a parent node, a synchronization signal block (SSB) and system information; and performing a random access procedure with the parent node on the basis of the SSB and the system information, wherein the SSB and the system information are received through a resource allocated to an access link of the parent node, and the random access step is performed through a resource allocated to the backhaul link of the parent node, and the random access step is performed using resources determined differently depending on whether the TAB node is a relay node or a terminal.

A donor communication station transmits a unicast transmission comprising a plurality of device data sets where each device data set directed to each of a plurality of user equipment (UE) devices. A relay node receives the unicast transmission and retransmits the data sets in a broadcast transmission over a broadcast communication channel to the plurality of UE devices. In one example, the donor communication station encodes data for multiple user equipment (UE) devices by applying broadcast encoding to the data for each device before applying outer encoding to the data. The dual encoded data is transmitted to the relay node over a dedicated channel. The relay node applies outer decoding to the dual encoded data to retrieve the broadcast encoded data. The relay node then transmits the broadcast encoded device data in a broadcast transmission without outer encoding.

The same or similar physical signals can be used for both user equipment (UE) and an integrated access backhaul (IAB) node. Different configurations of resources and/or transmission periods of the signals can be used for initial access for access UEs and IAB nodes. In addition, since the UE functionality for IAB nodes is not fully identical with access UEs, the network can identify which UEs performing initial access are normal access UEs or are IAB nodes with UE functionality. Furthermore, the parameters for configuring radio resource management operation at the IAB node gNode B function can consider a half-duplex constraint imposed by the UE function and can also analyze hop order and other topology/route management functionalities.

A method for determining a route in an Integrated Access Backhaul “IAB” mesh zone. The method comprises transmitting, to each IAB node of a plurality of IAB nodes, one or more discovery parameters for each IAB node; determining one or more route selection parameters for each IAB node to select a route; a first IAB node of the plurality of IAB nodes determining, based on the one or more discovery parameters, that a second IAB node of the plurality of IAB nodes is discoverable; and upon receiving a packet, selecting a route from the first IAB node based on the one or more route selection parameters and on the first IAB node determining that the second IAB node is discoverable.

Prioritizing resource allocation for relay nodes that have higher bandwidth capabilities, such as 5G EN-DC, versus other relay nodes that do not have such capabilities. The bandwidth capability can be based on a channel bandwidth allocation for different relay nodes, with the assumption that 5G or higher relay nodes will be able to utilize higher bandwidth channels.