Migration method and apparatus for iab-node

A migration apparatus for an (integrated access and backhaul) IAB-node, applicable to a first IAB-node, the apparatus comprising:

• a first transmitter configured to transmit first configuration information to a terminal equipment served by the first IAB-node and/or a descendant IAB-node of the first IAB-node, the first configuration information comprising security configuration configured by a target IAB donor node;
• and
• a second transmitter configured to transmit first indication information to the terminal equipment and/or the descendant IAB-node, the first indication information being used for indicating that a first terminal equipment applies the security configuration in the first configuration information, the first terminal equipment comprising the terminal equipment served by the first IAB-node and/or a terminal equipment served by the descendant IAB-node of the first IAB-node.

A migration apparatus for an (integrated access and backhaul) IAB-node, applicable to a first IAB donor node, the first IAB donor node being a source IAB donor node of a first IAB-node, the apparatus comprising:

• a third transmitter configured to transmit first configuration information to the first IAB-node, the first configuration information comprising security configuration configured by a target IAB donor node;
• and
• a fourth transmitter configured to transmit third indication information to the target IAB donor node, the third indication information being used for indicating that the first terminal equipment applies the security configuration in the first configuration information, the first terminal equipment comprising a terminal equipment served by the first IAB-node and/or a terminal equipment served by a descendant IAB-node of the first IAB-node.