FIG. 21 shows yet another example diagram of a telecommunications system 20 comprising wireless access node 22, IAB-node 24A, also known as wireless relay node 24A; target IAB node 24B; and child node 30. The child node 30 may be, for example, a user equipment, UE, or an Integrated Access and Backhaul (IAB) node, as previously described. For sake of simplification, node 30 may herein be referred to simply as IAB node 30 or wireless node 30. The telecommunications system 20 of FIG. 21 may also include other access nodes and backhaul connections as shown in FIG. 11, and the target IAB node 224B may be connected to such other access nodes or yet other IAB-nodes. Aspects of the wireless access node 22, wireless relay node 24A, and IAB node 30 are described in more detail with reference to FIG. 22.
In similar manner as FIG. 11, elements of FIG. 21 may be connected by wireless backhaul links, e.g., the wireless access node 22 may be connected by wireless backhaul link 34 to IAB-node 24; the IAB-node 24A may be connected by wireless backhaul link 36 to child node 30; and after a handover the target IAB-node 24B may be connected by link 33B to child node 30.
