For the specific content of the above configuration information, please refer to the definition/description in the above step 4-1-1.
Alternatively, the above step 4-1-1a and step 4-1-1b may occur before step 4-1-1.
Alternatively, when the implementation solution includes step 4-1-1a and step 4-1-1b, the fifth message may be obtained by the target donor node/source donor node based on the above sixth information, for example, the target donor node/source donor extract part or all of the information in the above response message to form a fifth message, and then transmit to the user terminal. In other words, the above fifth message transmitted to the user terminal may be generated by the target donor node/source donor node, or the fifth message may be generated by the target donor node/source donor node based on the sixth message transmitted to the target donor node/source donor node by the relay node that the user terminal accesses. Alternatively, when the target donor node/source donor node transmits the fifth message to the user terminal, the target donor node/source donor node may transmit it directly to the user terminal or transmit it to the user terminal through the relay node of the user terminal.
In the above process, the first user configuration message may be an RRC message, such as an RRCReconfiguration message, or other types of messages; the first configuration request message and the first configuration request response message may be UE Context Setup/Modification Request and UE Context Setup/Modification Response message, respectively, or may also be other types of messages.